Avaya Canada S12000BTS Base Transceiver Station User Manual 411 9001 142 15102
Avaya Canada Corporation Base Transceiver Station 411 9001 142 15102
Exhibit 8 user manual
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| Mirror Download [FCC.gov] | |
| Document ID | 661112 |
| Application ID | UVvsvmRKuqHhUJQtmtK8Jg== |
| Document Description | Exhibit 8 user manual |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 199.8kB (2497454 bits) |
| Date Submitted | 2006-05-23 00:00:00 |
| Date Available | 2006-02-02 00:00:00 |
| Creation Date | 2005-05-30 15:22:09 |
| Producing Software | Acrobat Distiller 6.0 (Windows) |
| Document Lastmod | 2005-09-19 13:38:32 |
| Document Title | 411-9001-142-15102 |
| Document Creator | PScript5.dll Version 5.2 |
| Document Author: | Nortel Networks |
Wireless Service Provider Solutions S12000 BTS Reference Manual PE/DCL/DD/0142 15.102/EN Standard May 2005 411--9001--142 Copyright © 2002--2005 Nortel Networks < 142 > : S12000 BTS Reference Manual Wireless Service Provider Solutions S12000 BTS Reference Manual Document number: PE/DCL/DD/0142 411--9001--142 Document status: Standard Document issue: 15.102/EN Product release: GSM/BSS V15.1 Date: May 2005 Copyright © 2002--2005 Nortel Networks, All Rights Reserved Originated in France NORTEL NETWORKS CONFIDENTIAL: The information contained in this document is the property of Nortel Networks. Except as specifically authorized in writing by Nortel Networks, the holder of this document shall keep the information contained herein confidential and shall protect same in whole or in part from disclosure and dissemination to third parties and use for evaluation, operation and maintenance purposes only. You may not reproduce, represent, or download through any means, the information contained herein in any way or in any form without prior written consent of Nortel Networks. The following are trademarks of Nortel Networks: *NORTEL NETWORKS, the NORTEL NETWORKS corporate logo, the NORTEL Globemark, UNIFIED NETWORKS, S2000, S4000, S8000. GSM is a trademark of France Telecom. All other brand and product names are trademarks or registered trademarks of their respective holders. Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Publication History iii PUBLICATION HISTORY System release: GSM/BSS V15.1 May 2005 Issue 15.102/EN Standard Removed information on BSC 6000 due to EOL. March 2005 Issue 15.101/EN Preliminary Synchronized with V15.01 Standard Updated for Review Comments January 2005 Issue 15.100/EN Draft Section 1.6: configuration updated Feature 25493: section 3.3.1.1 updated with information on EDGE implementation Chapter 5: reference to document GSM/GPRS/EDGE BSS Engineering Rules updated System release: GSM/BSS V15.1R November 2004 Issue 15.52/EN Preliminary Synchronized with V15.0 Standard August 2004 Issue 15.51/EN Preliminary Updated with Review Comments July 2004 Issue 15.50/EN Draft Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual iv Publication History Nortel Networks Confidential Added the following statement to Section 2.1: Version 15.1R supports HePA 900 with GSM BTS. Removed the following statements from the Applicability section: V15.0 features are not supported on the BSC2G. BSC2G functionality is kept on BSCs running the 14.3 software load. System release: GSM/BSS V15.0 October 2004 Issue 15.09/EN Standard HePA updates September 2004 Issue 15.08/EN Standard July 2004 Issue 15.07/EN Preliminary Updated Chapter 2 with power consumption information. Removed customer names from August history 2003. Issue 15.06/EN Preliminary Updated for Helmsman release. Issue 15.05/EN Preliminary Added Feature 25621 to Chapter 2 May 2004 Issue 15.04/EN Preliminary Updated according to the following feature: 24961: S12000 dual band 850/1900 E1 March 2004 Issue 15.03/EN Preliminary Updated the power amplifier board description. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Publication History March 2004 Issue 15.02/EN Preliminary Up issued this manual for a preliminary release December 2003 Issue 15.01/EN Draft V15.0 features are not supported on the BSC2G. (BSC2G functionality is kept on BSCs running the 14.3 software load). Update according to the following features: • 23068 • 24119 For Q00795093, update to Table 2--16, Chapter 2. Update About this document regarding V15 features not supported on BSC2G. November 2003 Issue 14.05/EN Standard For Q00767324, added - 25793: S12000 ID/OD 2S888 H4D Update according to the following features: • 24396: e--PA 1800 or S8000 and S12000 • 24397: e--PA 900 for S8000 and S12000 • 24381: e--PA 1900 for S8000 and S12000 • 24382: e--PA 850 for S8000 and S12000 • 24981: e--PA redesign 1900 for S8000 and S12000 • 24982: e--PA redesign 850 for S8000 and S12000 August 2003 Issue 14.04/EN Preliminary The following changes were made throughout the document: Update the dc power supply diagram of the S12000 outdoor BTS Update according to the following features: • 24915: S12000 ind/out up to 2S666/D (1 or 2) + H2D (1 or 2) with HePA/PA • 25043: S12000 ind/outd up to 3S666/D (1 or 2) + H2D (1 or 2) with PA • 25044: S12000 ind/out up to 3S121212/H2D (1 or 2) + H4D (1 or 2) with PA Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual vi Publication History Nortel Networks Confidential • 23849: S12000 1800/T1 • 24963: S12000 850/E1 • 24964: S12000 1900/E1 • 25248: S12K - 900Mhz/T1 • 24399: eDRX 900 for S8000 and S12000 April 2003 Issue 14.03/EN Preliminary The following changes were made throughout the document: Update power supply description of the S12000 outdoor BTS Update GIPS description Add frequency band configuration in chapter 1 January 2003 Issue 14.02/EN Preliminary The following changes were made throughout the document: Modify the DCU description Modify the GIPS front face December 2002 Issue 14.01/EN Preliminary The following changes were made throughout the document: Upgrade according to the following feature: • PR1505: S8000/S12000 High Power PA (60W) • 22472: S12000 configuration priority 2 • SV1374: Network Level Identification of e--DRL and e--PA presence Add the GIPS module and the associated AC box Add the four--way hybrid duplexer (H4D 1900 Mhz) RF Combiner System release: GSM/BSS V13 October 2002 Issue 13.05/EN Standard PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Publication History vii Update according to the V13.2b task force September 2002 Issue 13.04/EN Preliminary Update after internal review August 2002 Issue 13.03/EN Preliminary Update after internal review The following changes were made after internal review 900 and 1800 Mhz features were removed all references to DRX were changed to e--DRX all references to PA were changed to e--PA all references to C--DCS and LNS--DCS were removed all references to single--phase and tri--phase AC boxes were removed The following checks have been performed: battery threshold of the PCU functioning temperature of the rectifiers values of the PCU breaker (modified) values of the indoor compartment breaker (modified) nominal output voltage and output voltage range of the rectifier subrack July 2002 Issue 13.02/EN Draft Creation March 2002 Issue 13.01/EN Draft Creation Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual viii Table of contents Nortel Networks Confidential About this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-- 1 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0--1 Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0--1 Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0--1 Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0--2 How this document is organized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0--3 Vocabulary conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0--3 Regulatory information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0--3 Cabinet description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-- 1 1.1 Cabinet compartment layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--1 1.1.1 S12000 Outdoor BTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--1 1.1.2 S12000 Indoor BTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--5 1.1.3 Additional equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--8 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--16 1.2.1 S12000 Outdoor BTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--16 1.2.2 S12000 Indoor BTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--30 Climatic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--32 1.3.1 S12000 Outdoor BTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--32 1.3.2 S12000 Indoor BTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--33 1.4 Plinth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--34 1.5 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--35 1.5.1 S12000 Outdoor BTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--35 1.5.2 S12000 Indoor BTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--35 1.6 Product names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--36 Board description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-- 1 2.1 Power Amplifier (PA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--1 2.1.1 Amplifier alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--1 2.1.2 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--2 2.1.3 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--2 RECAL board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--8 2.2.1 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--8 2.2.2 Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--10 2.2.3 List of connected internal alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--21 2.2.4 List of unprotected external alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--27 1.2 1.3 2.2 PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.3 Table of contents ix ALPRO board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--29 2.3.1 Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--29 2.3.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--29 2.3.3 S12000 Outdoor BTS environmental conditions . . . . . . . . . . . . . . . . . . . 2--29 2.3.4 S12000 Indoor BTS environmental conditions . . . . . . . . . . . . . . . . . . . . . 2--31 2.3.5 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--31 F--type converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--33 2.4.1 Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--33 2.4.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--33 2.4.3 Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--34 RF Combiner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--36 2.5.1 Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--36 2.5.2 RF Combiner front panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--42 Tx--Filter module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--48 2.6.1 VSWR--meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--48 Compact BCF (CBCF) module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--51 2.7.1 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--51 2.7.2 Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--52 2.7.3 CPCMI Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--54 2.7.4 CMCF board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--66 2.7.5 BCFICO board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--76 2.7.6 CBCF Back Panel (CBP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--86 DRX, e--DRX, or DRX--ND3 module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--95 2.8.1 DRX front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--95 2.8.2 e--DRX front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--97 RX--splitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--99 2.9.1 Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--99 2.9.2 Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--99 2.9.3 RX--splitter front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--99 Power system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--104 2.10.1 Power system description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--104 2.10.2 PCU description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--104 2.10.3 SRU description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--109 2.10.4 GIPS description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--110 Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-- 1 3.1 Physical architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--1 3.1.1 3--1 2.4 2.5 2.6 2.7 2.8 2.9 2.10 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual x Table of contents Nortel Networks Confidential 3.1.2 Subsystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--1 3.1.3 Internal buses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--1 CBCF functional architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--5 3.2.1 Switching, synchronization, and concentration . . . . . . . . . . . . . . . . . . . . . 3--5 3.2.2 Control of the alarm management unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--11 3.2.3 PCM Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--11 DRX functional architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--13 3.3.1 Types of DRX boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--13 3.3.2 DRX digital part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--13 3.3.3 DRX radio part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--31 3.3.4 DRX shutting down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--34 3.3.5 Power supply board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--34 e--DRX functional architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--35 3.4.1 Modifications between the DRX and e--DRX . . . . . . . . . . . . . . . . . . . . . . 3--35 3.4.2 Main external connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--37 3.4.3 e--DRX functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--38 Software descrIption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-- 1 4.1 BTS software presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--1 4.1.1 Downloadable files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--1 4.1.2 PROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--1 BTS software functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--3 4.2.1 DRX software functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--3 4.2.2 CBCF software functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--7 4.2.3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--9 4.2.4 TIL software functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--10 Dimensioning rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-- 1 3.2 3.3 3.4 4.2 PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential List of figures xi Figure 1--1 S12000 Outdoor BTS: Base cabinet layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--2 Figure 1--2 S12000 Indoor BTS: Base cabinet layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--6 Figure 1--3 External battery cabinet of the S12000 Outdoor BTS (SBS 60 batteries) . . . 1--9 Figure 1--4 External battery cabinet of the S12000 Outdoor BTS (SBS C11 batteries) . 1--10 Figure 1--5 S12000 Indoor BTS: Cabinet top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--12 Figure 1--6 S12000 Outdoor BTS: PCM connection box . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--13 Figure 1--7 S12000 Outdoor BTS: --48 V connection box . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--14 Figure 1--8 External alarm connection box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--15 Figure 1--9 S12000 Outdoor BTS: dc power supply diagram . . . . . . . . . . . . . . . . . . . . . . . . 1--19 Figure 1--10 Split single phase ac box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--23 Figure 1--11 Side view of inside of split single--phase ac box . . . . . . . . . . . . . . . . . . . . . . . . . 1--24 Figure 1--12 AC box/GIPS with US type user AC plug BTS . . . . . . . . . . . . . . . . . . . . . . . . . . 1--27 Figure 1--13 AC box/GIPS with E, F, UK type user AC plug . . . . . . . . . . . . . . . . . . . . . . . . . . 1--28 Figure 1--14 Side view of inside of AC box/GIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--29 Figure 1--15 S12000 Indoor BTS: dc power supply diagram . . . . . . . . . . . . . . . . . . . . . . . . . 1--31 Figure 2--1 S12000 BTS: Power Amplifier (type 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--3 Figure 2--2 S12000 BTS: Power Amplifier (type 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--4 Figure 2--3 S12000 BTS: High Power Amplifier (HePA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--5 Figure 2--4 RECAL board functional diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--9 Figure 2--5 RECAL board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--12 Figure 2--6 ALPRO board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--30 Figure 2--7 F--type converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--35 Figure 2--8 Duplexer--only (D) RF Combiner diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--37 Figure 2--9 H2D RF Combiner diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--38 Figure 2--10 H4D RF Combiner diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--39 Figure 2--11 Duplexer--only (D) RF Combiner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--43 Figure 2--12 Two--way hybrid duplexer (H2D) RF Combiner . . . . . . . . . . . . . . . . . . . . . . . . . 2--44 Figure 2--13 Four--way hybrid duplexer (H4D 1800/900 Mhz) RF Combiner . . . . . . . . . . . . 2--45 Figure 2--14 Four--way hybrid duplexer (H4D 850/1900 MHz) RF Combiner . . . . . . . . . . . 2--46 Figure 2--15 Tx--Filter (Tx--F) module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--49 Figure 2--16 Tx--Filter (Tx--F) functional diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--50 Figure 2--17 S12000 BTS: CBCF module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--53 Figure 2--18 CPCMI board functional diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--56 Figure 2--19 CPCMI board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--58 Figure 2--20 CPCMI board: hardware switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--60 Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual xii List of figures Nortel Networks Confidential Figure 2--21 CMCF Phase2 board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--70 Figure 2--22 BCFICO board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--77 Figure 2--23 CBP board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--87 Figure 2--24 DRX module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--96 Figure 2--25 e--DRX module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--98 Figure 2--26 RX--splitter diagram type 1x4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--100 Figure 2--27 RX--splitter diagram type 2x2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--101 Figure 2--28 RX--splitter type 1x4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--102 Figure 2--29 Rx--splitter type 2x2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--103 Figure 2--30 Power supply rack (seven--rectifier type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--108 Figure 2--31 GIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--114 Figure 2--32 DCU module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--115 Figure 2--33 ADU module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--116 Figure 3--1 Subsystem architecture with CBCF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--3 Figure 3--2 CMCF board synchronization (full configuration) . . . . . . . . . . . . . . . . . . . . . . . . 3--7 Figure 3--3 Defense connectivity between the CMCF Phase2 boards (full configuration) 3--10 Figure 3--4 DRX board: functional block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--15 Figure 3--5 AMNU functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--16 Figure 3--6 DCU8 unit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--22 Figure 3--7 SPU reception functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--24 Figure 3--8 SPU transmission functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--24 Figure 3--9 Power slaving diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--30 Figure 3--10 e--DRX board: functional block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--36 Figure 3--11 Logic unit (e--LDRX): functional architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--40 Figure 3--12 Radio unit (e--RDRX): functional unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--47 Figure 4--1 Software functions (with CBCF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--4 Figure 4--2 COAM architecture on the CBCF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--8 PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential List of tables xiii Table 2--1 Voltage supply connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--6 Table 2--2 Data connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--7 Table 2--3 LEDs on the front panel of the RECAL board . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--13 Table 2--4 RECAL board connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--14 Table 2--5 PCM pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--15 Table 2--6 PCM--out pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--16 Table 2--7 Internal pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--17 Table 2--8 EXT. P pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--18 Table 2--9 Ext. NP. pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--19 Table 2--10 PWR pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--19 Table 2--11 P0 (Debug) pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--20 Table 2--12 P1 (EPLD JTAG) port pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--20 Table 2--13 List of alarms and INT0 connector DALIs (S12000 Indoor BTS, base and extension cabinets) . . . . . . . . . . . . . . . . . . . . . 2--23 Table 2--14 Example of alarm affectation in function of S12000 Indoor configuration . . . 2--24 Table 2--15 List of alarms and INT0 connector DALIs (S12000 Outdoor BTS, base and extension cabinets) . . . . . . . . . . . . . . . . . . . 2--26 Table 2--16 Unprotected external alarms (S12000 Outdoor BTS, base and extension cabinets) . . . . . . . . . . . . . . . . . . . 2--28 Table 2--17 ALPRO 25--pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--31 Table 2--18 ALPRO 10--pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--32 Table 2--19 Output voltages and alarm signals connector . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--34 Table 2--20 Input voltages connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--34 Table 2--21 Content of RF Combiner modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--36 Table 2--22 Amplifier pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--40 Table 2--23 VSWR pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--47 Table 2--24 CBCF module boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--51 Table 2--25 Functions of CPCMI--E1 and CPCMI--T1 boards . . . . . . . . . . . . . . . . . . . . . . . . 2--55 Table 2--26 LEDs on the front panel of the CPCMI board . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--57 Table 2--27 CPCMI board: S3 switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--60 Table 2--28 CPCMI board: S1 and S2 switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--61 Table 2--29 CPCMI board connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--62 Table 2--30 Pin connections of the P11 connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--63 Table 2--31 Pin connections of the P13 connector (Power) . . . . . . . . . . . . . . . . . . . . . . . . . 2--64 Table 2--32 Pin connections of the P10 connector (Debug) . . . . . . . . . . . . . . . . . . . . . . . . . 2--64 Table 2--33 Pin connections of the P9 connector (JTAG) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--65 Table 2--34 LEDs on the front panel of the CMCF Phase2 Board . . . . . . . . . . . . . . . . . . . . 2--69 Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual xiv List of tables Nortel Networks Confidential Table 2--35 CMCF Phase2 board connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--71 Table 2--36 Pin connections of the TEST connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--72 Table 2--37 Pin connections of the ETH connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--72 Table 2--38 Pin connections of the J3 (BDM) connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--73 Table 2--39 Pin connections of the J4 (JTAG) Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--73 Table 2--40 Pin connections of the P1 connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--74 Table 2--41 Pin connections of the P2 connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--74 Table 2--42 Pin connections of the P3 connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--75 Table 2--43 Pin connections of the P4 (Power) connector . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--75 Table 2--44 BCFICO board connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--76 Table 2--45 PCM0/1 pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--78 Table 2--46 PCM2/3 pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--79 Table 2--47 PCM4/5 pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--79 Table 2--48 ABIS pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--80 Table 2--49 PWR pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--80 Table 2--50 RS232 pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--81 Table 2--51 J2 pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--81 Table 2--52 J4 pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--82 Table 2--53 J6 pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--82 Table 2--54 J7 pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--83 Table 2--55 TEI Resistor coding on the switch register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--84 Table 2--56 TEI configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--85 Table 2--57 CMCF_A (Sign1A) pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--88 Table 2--58 CMCF_A (Sign1B) pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--89 Table 2--59 CMCF_A (Sign1C) pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--89 Table 2--60 CMCF_B (Sign2A) pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--90 Table 2--61 CMCF_B (Sign2B) pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--90 Table 2--62 CMCF_B (Sign2C) pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--91 Table 2--63 CPCMI_0 (Sign3) pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--91 Table 2--64 CPCMI_1 (Sign 4) pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--92 Table 2--65 CPCMI_2 (Sign 5) pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--92 Table 2--66 BCFICO (Sign6A) pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--93 Table 2--67 BCFICO (Sign6B) pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--93 Table 2--68 BCFICO (Sign6C) pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--94 Table 2--69 AL1, AL2, AL3, AL4, AL5, AL6 pin connections (Power voltage connectors) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--94 PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential List of tables xv Table 2--70 Alarm connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--105 Table 2--71 Monitoring connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--106 Table 2--72 Alarm connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--111 Table 3--1 BTS subsystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--2 Table 4--1 CBCF software product names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--1 Table 4--2 S12000 BTS family : DRX software product names . . . . . . . . . . . . . . . . . . . . . 4--2 Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Nortel Networks Confidential About this document 0--1 ABOUT THIS DOCUMENT This document describes the S12000 Indoor and Outdoor Base Transceiver Stations (BTSs), which are components of the Base Station Subsystem (BSS). Applicability This document is part of the BSS Nortel Networks Technical Publications (NTPs). This document applies to the V15.1 BSS system release. The S12000 BTS supports the following frequencies: Single band GSM 850 T1/E1, 900 T1, 1800 T1 and 1900 T1/E1 Dual band GSM 850/1900 T1/E1 CAUTION GSM--R does not apply to the S12000 BTS. Audience This document is for operations and maintenance personnel, and for other users who want to know more about the BTSs. Prerequisites It is recommended that the readers also become familiar with the following documents: < 01 > : BSS Overview < 07 > : BSS Operating Principles < 124 > : BSS Parameter Dictionary < 125 > : Observation Counter Dictionary < 128 > : OMC--R User Manual - Volume 1 of 3: Object and Fault menus < 129 > : OMC--R User Manual - Volume 2 of 3: Configuration, Performance, and Maintenance menus Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 0--2 About this document Nortel Networks Confidential < 130 > : OMC--R User Manual - Volume 3 of 3: Security, Administration, SMS--CB, and Help menus < 143 > : S12000 BTS Fault Numbers < 144 > : S12000 BTS Maintenance Manual Document GSM/GPRS/EDGE BSS Engineering Rules (PE/DCL/DD/0138) Related Documents The NTPs listed in the above paragraph are quoted in the document. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential About this document 0--3 How this document is organized Chapter 1 describes the layout and contents of the BTS cabinets. Chapter 2 describes the functions of the BTS boards and modules, and also describes their front panels. Chapter 3 examines BTS architecture and describes the physical structure, focusing on the functional architecture of the subsystems. Chapter 4 lists BTS software entities and shows how they are installed on the hardware units. Chapter 5 indicates that the dimensioning rules are now contained in GSM BSS Engineering Rules document. Vocabulary conventions The glossary is included in the NTP < 00 >. Regulatory information Refer to the NTP < 01 >. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Nortel Networks Confidential Cabinet description 1--1 CABINET DESCRIPTION 1.1 Cabinet compartment layout 1.1.1 S12000 Outdoor BTS The base cabinet and the extension cabinet are divided into three parts: top compartment left side right side The layout of the equipment in the base and extension cabinets is identical in the top compartment and on the left side. The cabinet layout on the right side of the base and extension cabinets is different. In the base cabinet, the CBCF is located in the CBCF compartment. In the same compartment of the extension cabinet, a filling plate replaces the CBCF. The top compartment opens by means of a cover on the top of the cabinet. The front of the cabinet is perforated to allow air to circulate. The top compartment has two elements: the optional battery box and the climatic system (DACS). User compartment This compartment is available for Original Equipment Manufacturer (OEM). For more information, refer to the documentation provided by the equipment manufacturer. The user interconnection compartment is optional. It is required only when a user kit or a - 48 V connection box is used. PA interconnection compartment The PA interconnection compartment centralizes the - 48 V dc power supply of the Power Amplifiers (PA). Amplifier compartment The amplifier compartment receives up to twelve Power Amplifiers (PA). RECAL compartment This compartment contains the RECAL board. The RECAL board is connected to one or two external alarm protection boards (ALPRO), located outside the cabinet. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Cabinet description 1--2 Nortel Networks Confidential 2 F--type converters User interconnections RECAL DACS DRX--ICOA 0 1 2 3 4 0 1 2 3 4 Batteries User rack DRX CBCF Filler 4RX splitters Power system rack 6 7 8 9 10 11 DRX--ICO B PA--ICO 7 8 9 10 11 DRX 12 PA Filler 4RX splitters AC box 4RF-combiners 8 RF--combiners Filler Figure 1--1 COM--ICO S12000 Outdoor BTS: Base cabinet layout PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Cabinet description 1--3 F--type converter A converter, called F--type converter, supplies ± 15 V dc to the LNA--splitter and the VSWR--meter. A second F--type converter is available as an option. RF Combiner and Tx--Filter compartments The RF Combiner and Tx--Filter compartments can hold a maximum of either of the following combination of modules (4 on the left, 8 on the right): twelve RF duplexer (D) plus LNAs twelve RF duplexer (D) plus LNAs plus Tx--Filter modules twelve two--way RF Hybrid Duplexer type (H2D) plus LNAs six RF four--way Hybrid Duplexer type (H4D) plus LNAs Note: Depending on the coupling system used, an RF--combiner can contain a duplexer, an H2D or H4D transmitter coupler, an LNA splitter, and an optional VSWR meter. The D, H2D, and H4D RF Combiner modules perform the following functions: transmission coupling of two, three, or four channels filtering and duplexing of transmission and reception signals on the same antenna port amplification of reception signals monitoring of the antenna VSWR (option) The Tx--Filter performs the following functions: filtering of transmission signals monitoring of the antenna VSWR (option) Combiner interconnection compartment (COMICO) The COMICO is the interconnection board for the modules of the RF Combiner compartment that centralizes inputs/outputs on the alarms and the power supplies. COMICO collects and connects alarms to RECAL. CBCF Compartment Two CBCF boards are visible on the front panel of the CBCF module: Compact Main Common Function (CMCF) Compact PCMI (CPMI) Since there is no CBCF in the extension cabinet, a filling plate occupies the place of these units. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 1--4 Cabinet description Nortel Networks Confidential DRX interconnection compartments (DRX--ICO A and DRX--ICO B) The interconnection compartments centralize DRX outputs. They assure interconnection between DRX via the FH bus, PA, RECAL and CBCF modules. DRX compartments These compartments receive up to twelve modules, 6 in each. RX--splitter compartments The RX--splitter compartments receive up to eight RX--splitters, which receive RF signals from the LNA splitter and distribute them to the DRXs RX inputs. Power system compartment The power system compartment may be configured with: a Power Controller Unit (PCU) and up to seven 600W or 680W rectifiers (one of them redundant). or a GIPS module including a DC Distribution and Control Unit (DCU), up to seven 680W rectifiers (one of them redundant), and an AC Distribution Unit (ADU). The rectifiers convert Mains Voltage to - 48 V dc to be used in the cabinet. According to the number of DRXs per cell, the number of rectifiers may be decreased. AC box This box is located on the right--hand side of the right--hand part of the cabinet. Two types of AC box are available: The AC box associated with the power system with PCU. It receives the mains voltage and distributes it to the power system compartment and to the cooling system. The PCU only controls the dc supply. The ac supply connects to the back panel, which is common for all rectifiers. The AC box/GIPS associated with the GIPS. It receives the mains voltage and distributes it to the power system compartment and to the user ac plug. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 1.1.2 Cabinet description 1--5 S12000 Indoor BTS The compartment layout of the base cabinet is presented in Figure 1--2. Cabinet top The cabinet top (see Figure 1--5) can hold a maximum of two ALPRO modules. An ALPRO module consists of an ALPRO board, a protection cover, and an interconnection plate. Combiner interconnection (COMICO) compartment This compartment consists of an interconnection board for the combiner compartment modules, which centralizes inputs/outputs on the alarms and the power supplies. RF combiner and Tx--Filter compartment The RF Combiner and Tx--filter compartment can hold a maximum of either of the following combination of modules: twelve RF duplexer (D) plus LNAs twelve RF duplexer (D) plus LNAs plus Tx--Filter modules twelve two--way RF Hybrid Duplexer type (H2D) plus LNAs six RF four--way Hybrid Duplexer type (H4D) plus LNAs Note: Depending on the coupling system used, an RF--combiner can contain a duplexer, an H2D or H4D transmitter coupler, an LNA splitter, and an optional VSWR meter. The RF Combiner modules perform the following functions: transmission coupling of the channels filtering and duplexing of transmission and reception signals on the same antenna port amplification of reception signals monitoring of the antenna VSWR (option) The Tx--Filter performs the following functions: filtering of transmission signals monitoring of the antenna VSWR (option) Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Cabinet description 1--6 Nortel Networks Confidential COM--ICO Breakers 6 RF--combiners 2F-- type converters RECAL 6 RF--combiners CBCF PA--ICO 12 PA DRX--ICO 0 1 2 3 4 5 6 7 8 9 10 11 0 1 2 3 4 5 6 7 8 9 10 11 12 DRX 8 RX Splitters Internal Cooling System Figure 1--2 S12000 Indoor BTS: Base cabinet layout PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Cabinet description 1--7 DC compartment This compartment contains three switches to disconnect the power supply to the Power Amplifiers, the fans, and the RECAL/CBCF board. F--type converters The compartment also contains an F--type converter, which supplies ± 15 V dc to the LNA--splitter and the VSWR--meter. A second F--type converter is available as an option. PA interconnection compartment This compartment centralizes the - 48 V dc power supply of the Power Amplifiers (PA). Power Amplifier compartment This compartment contains one to twelve power amplifiers (PAs). RECAL board The RECAL board can be connected to one or two external alarm protection boards (ALPRO) located on top of the base cabinet. DRX interconnection compartment This compartment centralizes DRX outputs. It connects them to the Power Amplifiers (PA) on the one hand , and interconnects them via the FH bus on the other. DRX Compartment This compartment contains a maximum of twelve modules. CBCF Compartment This compartment contains the CBCF module. RX--splitter compartment This compartment contains up to eight RX--splitters, which receive data signals from the units in the coupler compartment and distributes them to the DRXs. Climatic compartment This compartment contains two fans, and a board. One fan is optional and is used to ensure redundancy. This board enables the control of the rotation of each fan and sends an alarm (one for each fan) to the RECAL board when the fan speed goes below a fixed threshold. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 1--8 Cabinet description 1.1.3 Additional equipment 1.1.3.1 Battery cabinet Nortel Networks Confidential A cabinet, independent from the BTS cabinet, can be added to increase the power autonomy of the BTS in case of a mains power failure. This cabinet may house one of two possible types of battery. The batteries are arranged in four strings, each containing four batteries (see Figure 1--3). The internal batteries must first be disconnected before using these batteries. These batteries autonomy depend on the configuration and the equipment of the BTS, and can vary between 30 minutes and 14 hours. The cabinet dimensions are described in NTP < 01 >. Below the four battery strings is the Heating Ventilation Unit (HVU), consisting of the following: a fan a heating resistor a controller PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Cabinet description 1--9 Nut no. 2 Blue cable 1 bis Black cable Nut no. 1 2 bis 3 bis 4 bis Clamp DC breaker AC breaker DC box AC box Plinth Figure 1--3 External battery cabinet of the S12000 Outdoor BTS (SBS 60 batteries) Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Cabinet description 1--10 Nortel Networks Confidential Strap 1 bis 2 bis 3 bis 4 bis Black cable Blue cable Lug no. 2 Lug no. 1 Clamp ac breaker dc breaker DC box AC box Plinth Figure 1--4 PE/DCL/DD/0142 411--9001--142 External battery cabinet of the S12000 Outdoor BTS (SBS C11 batteries) Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 1.1.3.2 Cabinet description 1--11 PCM connection box (S12000 Outdoor BTS option for GSM 850/1900) This box is available as an option to protect two PCM links. An upgraded kit allows the protection of up to six PCM links. The PCM connection box is waterproof and can be put either in the BTS plinth or on--site outside the BTS (see Figure 1--6). The box can be fitted as suitable to the customer. 1.1.3.3 --48 V dc connection box (S12000 Outdoor BTS option for GSM 850/1900) This box is available as an option to provide an external - 48 V plug on--site. The - 48 V connection box is waterproof and can be put either in the BTS plinth or on--site outside the BTS (see Figure 1--7). The box can be fitted as suitable to the customer. 1.1.3.4 External alarm connection box (GSM 850/1900) This box exists in two versions: The outdoor version includes one or two ALPRO boards and the related primary protection modules. It protects up to 16 external alarms (8 per ALPRO board) and four remote controls (two per ALPRO board). The external alarms connection box is waterproof and can be put either in the BTS plinth or on--site outside the BTS (see Figure 1--8). The indoor version includes one ALPRO board, which protects up to 8 external alarms and two remote controls. Two indoor version boxes can be put on the top of the S12000 indoor BTS (see Figure 1--5). The box can be fitted as suitable to the customer. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Cabinet description 1--12 Nortel Networks Confidential --48V 0V Equipotentiality stud Terminal blocks Ground bar RF connector ALPRO 1 connector ALPRO 0 ALPRO 1 Figure 1--5 ALPRO 0 connector S12000 Indoor BTS: Cabinet top PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Figure 1--6 Cabinet description 1--13 S12000 Outdoor BTS: PCM connection box Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 1--14 Figure 1--7 Cabinet description Nortel Networks Confidential S12000 Outdoor BTS: --48 V connection box PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Figure 1--8 Cabinet description 1--15 External alarm connection box Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Cabinet description 1--16 1.2 Power supply 1.2.1 S12000 Outdoor BTS Nortel Networks Confidential The power system supplies 48 V DC power to the modules in the cabinet from the main power supply. Two solutions have been implemented to power supply modules of S12000 Outdoor BTS (either one or the other, but never both together). The first system is PCU based system The second system is DCU based system: GSM Integrated power system The PCU based system is implemented only in the 1900/850 BTS at the beginning of the S12000 life cycle. In a second time the DCU based system (GIPS) replaces the first system and is generalized in all types of BTS. Most of the functions are common to both system (PCU and DCU based). 1.2.1.1 General description This description is applicable to both systems, PCU based and DCU based (GIPS). The basic functions of the power system are the following: It accepts AC power and converts it up to 4200 W (PCU based) or 4760W (DCU based) of DC power for the DC loads of the base station. It provides an optional redundancy of DC power. it provides separate controlled and overload protected DC outputs for each of the DC loads. It supports the charging and discharging of batteries that provide operational power when the AC input is not available. It monitors the state of the power system and reports the status to the host base stations (alarms to RECAL board). 1.2.1.2 AC Distribution functions 3 types of AC power supply are supported: mono phased (only supported by GIPS) tri phased (only supported by GIPS) split phase (supported by GIPS and PCU based system) The AC distribution provides: surge suppression a system level circuit breaker for rectifiers power on/off and overload protection a circuit breaker for DACS power on/off and overload protection EMI filtering PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 1.2.1.3 Cabinet description 1--17 User plug The user plug is always available in the PCU based system (US plug type only), but is optional for the GIPS. 1.2.1.4 Rectifier modules The rectifiers convert input AC power into DC power for the DC loads within the base station. The nominal output voltage is - 54.6Vdc. The DC control system varies the output voltage from - 40Vdc to - 58.3Vdc in order to manage the charging of an attached battery string. PCU based system receives both 600W or 680W rectifiers, but for 680W rectifier use, the output power is limited to 600W. DCU based system (GIPS) can only receive 680W rectifiers. A mechanical way prevents 600W rectifier insertion. Up to seven rectifiers (6+1 for redundancy) are housed in a rectifier shelf. Their outputs are connected in parallel through the shelf back plane. 1.2.1.5 Batteries There are two types of battery units: internal batteries mounted on the top of the cabinet, which consist of four 12 V dc batteries in series (one string) external batteries located in the external battery cabinet, and configured in a maximum of four strings. Each string consists of four 12V dc batteries in series, the four strings being connected in parallel. Sealed lead batteries are used. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 1--18 Cabinet description 1.2.1.6 Nortel Networks Confidential DC Distribution and control functions The main function consists in the interconnection of the rectifiers set to the modules of the BTS and to the batteries. DC distribution Both power systems provide 4 outputs to the different S12000 modules: PA: DC distribution to the power amplifiers set DRX: DC distribution to the DRX set BCF: DC distribution to the basic functions of the BTS (CBCF, RECAL and the user rack) DACS: DC distribution to the cooling unit It generates a disconnection of its four load outputs depending on : the batteries output voltage level the internal temperature of the cabinet PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Cabinet description 1--19 ac input ac/dc rectifiers PCU/DCU 12 power amplifiers Climatic system DRX Fuse 1A Fuse 4A Fuse 10A CBCF compartment Fuse 10A DRX--ICOB DRX 90A breaker (*) 15A breaker Fuse 10A DRX--ICOA Fuse 2A Fuse 10A Fuse 10A PA--ICO 15A breaker Fuse 2A 80A breaker 10A breaker (PCU) 15A breaker (DCU) (Time delay) RECAL User CBCF 2F--type converters Internal batteries Legend: PA--ICO: Power Amplifier interconnection DRX--ICO: DRX interconnection Note: (*) The 90A breaker is used either for the internal battery or the external battery. Figure 1--9 S12000 Outdoor BTS: dc power supply diagram Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 1--20 Cabinet description Nortel Networks Confidential Batteries management When the power system stops supplying DC voltage, the batteries are the only possible DC power supply. The power system allows the cabinet to run on either internal or external batteries (connection of the internal or external batteries is carried out manually, and it is not possible to connect both types simultaneously). Two operating options are possible. Option 1 (for PCU based system only): • If AC power is available, the power system powers all the outputs and, if necessary, supplies power to the batteries (charging phase). • If the power system does not supply any power, the internal or external batteries energize BCF and DACS outputs (discharging phase). Option 2 (for PCU based system and GIPS): • If AC power is available, the power system powers all the outputs and, if necessary, supplies power to the batteries (charging phase). • If the power system does not supply any power, the internal or external batteries energize all the outputs (discharging phase). During the discharging phases the battery output voltage decreases over time. So, when the battery output voltage reaches LVD45 (--45V +/--1%), the power system cuts off power supply to the boards in the cabinet that are connected to PA and DRX outputs. An alarm is generated. If the battery output voltage continues to decrease and reaches LVD42 (--42V +/--1%), the power system cuts off power supply to the boards in the cabinet that are connected to BCF and DACS outputs. If the rectifiers recover power supply, the batteries are charging. When voltage is equal to 50.6V +/-- 0.5%, the power system reconnects the cabinet boards with its four outputs. The power system receives an analog signal from a temperature probe located on the batteries (internal or external) and sends a signal to the rectifiers to adjust the rectifier output voltage inversely to battery temperature (floating voltage). Alarm monitoring The following alarms are provided to the RECAL board by the power system: Load1 threshold (LVD45) PCU protective devices (PA & DRX DC Breaker) Battery on discharge DC fault PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Cabinet description 1--21 AC fault Over temperature Cabinet extreme ambient temperature management A signal (CEATS1) is provided by two ambient temperature probes (one is located at the top of the cabinet, the other at the bottom) to the system power. When activated, this signal causes the disconnection of all outputs connected to the rectifiers and to the batteries 1.2.1.7 PCU based power system description The PCU based power system is composed of the following parts: an AC Main module a Power Control Unit (PCU) a set of up to seven rectifier units a set of batteries AC main It provides the AC distribution functions. It is made of an AC Main box with: main power supply connections (split phase only) a surge protection an EMI filter a user plug (US plug type only) a main breaker, a DACS breaker, a rectifier breaker and an AC plug breaker Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 1--22 Cabinet description Nortel Networks Confidential PCU (Power Control Unit) It provides the DC distribution and control functions. It includes the PA breaker, the FAN breaker (DACS), the DRX breaker and the BCF breaker. The batteries breaker is mounted on an external front panel. The PCU is located in the rectifier shelf. It is an integral part of this sub--rack and is not a Field Replaceable Unit (FRU). Rectifier modules PCU based system can receive both 600W or 680W rectifiers, but in case of 680W rectifier use, the output power is automatically limited to 600W. The rectifier shelf accepts up to seven rectifiers providing up to 4200W without redundancy or 3600W with redundancy. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Cabinet description 1--23 ac voltage to the climatic system and the heaters Climatic system circuit breaker (15A) Main circuit breaker (50A) Alarm return to the RECAL board Fuse for the 15A electrical outlets (F02, 250V, time delay) Two electrical outlets with incorporated differential (5 mA) Rectifier circuit breaker (35A) ac voltage to the rectifiers Ground ac lightning protector Figure 1--10 Split single phase ac box Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 1--24 Cabinet description ac voltage to climatic system and heaters Nortel Networks Confidential Climatic system circuit breaker Ground Main circuit breaker Alarm return to RECAL board 15A fuse for electrical outlets Two electrical outlets with incorporated differential cut--outs (5mA) Rectifier circuit breaker ac voltage to rectifiers Ground Filter neutral Lightning protector Filter phase 1 Filter phase 2 3 ac power supply Figure 1--11 PE/DCL/DD/0142 411--9001--142 Side view of inside of split single--phase ac box Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 1.2.1.8 Cabinet description 1--25 DCU based power sytem description (GIPS) The DCU based power system is composed of the following parts: an AC Box module and an optional User AC Plug kit an AC Distribution Unit (ADU) a DC Distribution and Control Unit (DCU) a set of up to seven rectifier units a set of batteries AC BOX/GIPS and user ac plug It includes only main power supply connection. The GIPS based power system operates from 3 types of AC power networks depending on the AC Box internal interconnection: single phased network three phased network split phased network An optional User AC plug kit is connected to the AC Box. Four plug types are available: european type E european type F UK US The user plug kit includes a breaker (differential breaker for European models and fuse for North American models). ADU (AC Distribution Unit) It provides the AC distribution functions. The ADU is located in the rectifier shelf and is a Field Replaceable Unit (FRU). It includes: a surge protection EMI filters a DACS breaker, rectifier breakers DCU (DC Distribution and Control Unit) It provides the DC distribution and control functions. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 1--26 Cabinet description Nortel Networks Confidential It includes the PA breaker, the DACS breaker, the DRX breaker and the BCF breaker. The batteries breaker is mounted on an external front panel. The DCU is located in the rectifier shelf. It is an integral part of this sub--rack and is not a Field Replaceable Unit (FRU). Rectifier modules DCU based system (GIPS) receives only 680W rectifiers. A mechanical way prevents 600W rectifier insertion. The rectifier shelf accepts up to seven rectifiers providing up to 4760 W without redundancy or 4080 W with redundancy. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Cabinet description 1--27 US AC plug 5mA/120Vac Indicator fuse 15A AC voltage to the power system compartment AC input terminal block Figure 1--12 AC box/GIPS with US type user AC plug BTS Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 1--28 Cabinet description Nortel Networks Confidential European AC plug 230Vac Differential circuit breaker 6A/30mA AC voltage to the power system compartment AC input terminal block Figure 1--13 PE/DCL/DD/0142 411--9001--142 AC box/GIPS with E, F, UK type user AC plug Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Cabinet description 1--29 Electrical outlet AC plug kit (optional) Ground Fault Interrupter (differential breaker) to GIPS AC BOX Mains Figure 1--14 Side view of inside of AC box/GIPS Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 1--30 Cabinet description 1.2.2 Nortel Networks Confidential S12000 Indoor BTS Figure 1--15 shows the dc power supply distribution. Two filters protect the dc distribution input against conducted emission. The dc power supply feeds the dc compartment where four outputs come out to the following equipment groups: the twelve power amplifiers and the two F--type converters, through the power amplifier interconnection module the two fans, through the fan interconnection module the twelve DRXs, through the DRX interconnection module the CBCF the RECAL board The dc compartment houses four breakers to disconnect the powering of these equipment groups. The dc distribution for each group uses three cables: +0 V dc - 48 V dc ground PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Cabinet description 1--31 ac input EMI filters dc compartment PA/DRX 100A breaker 10A breaker DRX_ICO PA_ICO RECAL CBCF 5A breaker CBCF FAN_ICO Fuse 4A Fuse Fuse Fuse 2A 2 F--type converters Fuse 2A Fuse 10A Fuse 10A Fuse 10A Fuse 10A 12 power amplifiers FANS CBCF RECAL 12 DRXs 2 fans Legend : PA--ICO : Power Amplifier interconnection FAN--ICO : Fan interconnection DRX--ICO : DRX interconnection Figure 1--15 S12000 Indoor BTS: dc power supply diagram Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Cabinet description 1--32 1.3 Climatic System 1.3.1 S12000 Outdoor BTS Nortel Networks Confidential The climatic system controls the inside temperature of the cabinet. It is located in the top compartment of the cabinet. The climatic system consists of a Direct Ambient Cooling System (DACS). The operating principle is the following: An air damper opens to admit external air (incoming air is filtered) and controls the inner cabinet environment by mixing appropriate amounts of outside and recirculated air. Twin blowers drive air down the rear duct and into the equipment enclosure via slots at the rear. Returned air to the cooling system is routed through two sets of holes in the base, with excess air being rejected from vents located on either side of the system. The internal temperature control is achieved by a high quality thermistor that has an accuracy of ±0.2°C (0.36_F) between 0°C (32_F) and 70°C (158_F). This device is located in the left hand exit duct above a hole on the duct side; the hole ensures that the thermistor is constantly in a moving air stream, regardless of damper position. The operational mode of the Cooling system is solely dictated by the information provided by the thermistor. There are four operational modes: Low temperature - 40°C (--56°F) < Tcab < 15°C (59°F) The heater is powered on, the damper is closed to the outside and air is recirculated via the holes in the base of the cooling system. Medium temperature 15°C (59°F) < Tcab < 40°C (104°F) The heater is switched off, the damper remains closed and further heating of the equipment enclosure is achieved solely by the internal equipment loading. Normal temperature Tcab = 40°C (104°F) The damper position is controlled automatically by the modulating motor, mixing appropriate amounts of recirculated and external air to maintain a constant temperature. Excess air is rejected from the cooling system from vents at either side of the cooling system. High temperature Tcab > 40°C (104°F) Although the damper is fully open, the cooling system is unable to keep the cabinet temperature to 40°C (104°F) which now rises in sympathy with the external temperature. At an outside temperature of 50°C (122°F), the internal cabinet will rise to a nominal 60°C (140°F) under fully loaded conditions. The cooling system is supplied with: PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Cabinet description 1--33 two hard alarm outputs: • The first alarm output signals a fault on the cooling system. • The second alarm output indicates a maintenance requirement for the filter. three alarm LEDs for on--site fault diagnostics: • The red LED indicates a critical alarm for fan failure. • The yellow LED indicates a critical alarm for heater circuit failure. • The green LED indicates a maintenance alarm for clogged filter. On the top of the cooling system, there is a window in the lid which allows the user to view the LEDs. The LEDs are normally lit when healthy and off alarm. The cooling system is dc powered which allows internal or external battery back--up. The dc power consumption of the cooling system is 400--450 W. The cold start--up performance of the unit is controlled by an inbuilt ac to dc converter (for operation of the fans) and by a 2.5 kW heating element. 1.3.2 S12000 Indoor BTS The Internal Cooling System (ICS) controls the inside temperature of the cabinet. It is located in the lowest compartment of the cabinet. The ICS consists of a rack which contains: two blowers a filter a converter a control board a front panel which contains three LEDs: • FAN1/CONV, which is lit green when there is no failure on the first fan or on the converter. • FAN2, which is lit green when there is no failure on the second fan. • FILTER, which is lit green when the filter is not clogged. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Cabinet description 1--34 1.4 Nortel Networks Confidential Plinth The S12000 Outdoor BTS cabinet can be installed on a plinth allowing for cable passage. The plinth characteristics are described in NTP < 01 >. The plinth may contain the external alarm connection box, the PCM connection box and the - 48 V dc connection box. These boxes are screwed into the inside of the plinth. The S8000 plinth can be used for the S12000 Outdoor BTS. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 1.5 Physical characteristics 1.5.1 S12000 Outdoor BTS Cabinet description 1--35 Physical characteristics Refer to NTP < 01 >. Operating temperature To operate correctly, the BTS requires a temperature greater than - 40°C (--56°F) and less than +50°C (+122°F). Autonomy of the internal battery The internal battery is an optional equipment located in the top compartment. The battery backup time depends on the configuration and the BTS equipment, and can vary from 30 minutes to a few hours. 1.5.2 S12000 Indoor BTS The S12000 Indoor BTS cabinet can be wall--mounted or put on the floor. Physical characteristics Refer to NTP < 01 >. Operating temperature When the base cabinet is turned on, the external ambient air temperature must be between 0°C (32°F) and 45°C (113°F). Once in operation, the base cabinet requires an external ambient air temperature above - 5°C (23°F) and below 45°C (113°F). Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Cabinet description 1--36 1.6 Nortel Networks Confidential Product names A BTS contains one or more cabinets and the associated supplies (cables, covers, endings, etc.). BTS products are identified by six items: Number of X = Number of sectors Sectorization Type of coupling system Number of cabinets Frequency BBB FF UUU DCC number of DCC or DSC VSXX....Xzz Letter for future use Number of DTI or PCMI boards TX type, power, radio test, encryption Number of TRXs in the Xth sector Cabinet type PCM type option and impedance Number of TRXs in the first sector Example: PE/DCL/DD/0142 411--9001--142 PP/PP QRA Number of TRXs in the second sector BBB = OUD (S12000 Outdoor BTS) BBB = IND (S12000 Indoor BTS) Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Cabinet description 1--37 PAGE INTENTIONALLY LEFT BLANK Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Nortel Networks Confidential Board description 2--1 BOARD DESCRIPTION 2.1 Power Amplifier (PA) The Power Amplifier (PA) amplifies the GUMS signal from a low--level transmission unit and sends it to the transmission coupler. HePA is compatible with e--DRX (all frequencies) and DRX ND3 (900) and with the indoor and outdoor S8000 and S12000 cabinets. The cabinet can contain a maximum of 12 HePAs. Three types of PA are available : PA, ePA and HePA (High Power Amplifier). The HePA can be used mixed with PA and ePA. PA and ePA are class 5 amplifiers, that is, they can provide power of between 20 W and 40 W. Nominal power is 30 W. HePA is the BTS Power Amplifier with transmit power up to 60 W in GMSK and is Edge compatible. HePA is compatible with S8000 CBCF and S12000 cabinets (indoor + outdoor) and works with eDRX and DRX ND3. HePA is not compatible with DRX. The HePA can be mixed with PA in step coupling configurations. It can be mixed with (e)PA in a normal cell if its power is being configured with a value that is compatible with (e)PA (lower than 30 Watt). The range of value of the OMC parameter ”bsTxPwrMax” that sets the power of the TRX, already permits to configure power up to 60 Watts. The HePA is differentiated at the OMC from PA and ePA; in the same way the ePA is differentiated from the PA. It contains its own dc/dc converter and contains a microcontroller which allows it to dialogue with the low--power transmission module. This function makes it possible to move the power amplifier to the top of the tower if necessary. 2.1.1 Amplifier alarms The power amplifier provides several alarms: an overtemperature alarm, whose threshold is set in the PA an overvoltage alarm, whose threshold is set in the PA an alarm indicating that the PA output reflected power is exceeded This alarm is triggered when the reflect power exceeds 6W. an alarm dedicated to the DC/DC converter Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--2 Board description Nortel Networks Confidential a communication alarm This alarm is triggered by a parity bit error or control byte error. an input power alarm, whose threshold is set in the PA The DRX must then reduce its output level (PA input level) to make the alarm disappear a consumed current alarm whose threshold is set in the PA 2.1.2 Power supply The power amplifier receives a 48 V power supply from the cabinet. The converter accepts an input voltage between 36 V and 57 V (nominally 48 V). It then provides the regulated 24 V voltage needed for operation of the PA radio stages. Maximum consumption is 220 Wfor PA, 200 Wfor ePA and 290 Wfor HePA 1900 MHz or 230 W for HePA 900 MHz. Actual consumptions are lower, with a typical maximum of 170 W for ePAs, 230 W for HePA 1900 and 200 W for HePA 900. S12000 indoor: At low speed: The HePA operates 12°C lower in S12000 than in S8000. The HePA temperature rise is 4°C lower than specification in S12000 (+26°C above ambient). At high speed: The HePA operates 17°C lower in S12000 than in S8000. The HePA temperature rise is 9°C lower than specification in S12000 (+26°C above ambient). 2.1.3 Connectors The power amplifier connectors are located on the front panel. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--3 DATA I/O POWER IN FUSE 10A F1 Fuse 10A 250V time delay RF IN RF SAMPLE RF OUT Note: Figure 2--1 In the S12000 Indoor BTS, the front panel is inverted compared to the figure presented S12000 BTS: Power Amplifier (type 1) Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--4 Board description Nortel Networks Confidential DATA I/O POWER IN RF IN RF OUT Note: Figure 2--2 In the S12000 Indoor BTS, the front panel is inverted compared to the figure presented S12000 BTS: Power Amplifier (type 2) PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--5 DATA I/O POWER IN RF IN RF OUT Note: Figure 2--3 In the S8000 Indoor BTS, the front panel is inverted compared to the figure presented. S12000 BTS: High Power Amplifier (HePA) Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--6 Board description 2.1.3.1 Nortel Networks Confidential Radio connectors There are three radio connectors: The radio input connector, marked “RF IN”, is a female, SMA connector. The radio output connector, marked “RF OUT”, is a female, N--type connector. The test connector, marked “RF SAMPLE”, is a female, SMA connector. According to to the PA type, this connector is optional. 2.1.3.2 Voltage supply connector The - 48 V supply of the PA is supplied through a male, three--pin connector. The pin connections are as follows: 48 V (--) GND 0V Table 2--1 PE/DCL/DD/0142 411--9001--142 Voltage supply connector Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.1.3.3 Board description 2--7 Data connector The data input/output connector is a 20--pin connector. The pin connections are as follows: GND GND SYNC MEU_DATA_OUT Selection of PA operating mode SECT_SEL_0 (not used by the PA) MEU_DATA_IN Test point Test point 10 Test point 11 GND 12 GND 13 NSYNC 14 NMEU_DATA_OUT 15 Test point 16 SECT_SEL_1 (not used by the PA) 17 NMEU_DATA_IN 18 Test point 19 Test point 20 Test point Table 2--2 Data connector Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--8 Nortel Networks Confidential 2.2 RECAL board 2.2.1 Functional description The RECAL board is the alarm management unit used with the CBCF. The RECAL collects external and internal alarm loops and alarms associated with OEM equipment. A slave of the CBCF, the RECAL board sends alarms to the CBCF over a Private PCM link. The CBCF signals the BSC when there is an alarm. There is one RECAL board per cabinet. The following functional blocks of the RECAL board are shown in Figure 2--4: Control unit Alarms interface Communication interface Power supply 2.2.1.1 Alarm management The RECAL board collects three types of alarms: Internal alarms Unprotected external alarms Protected external alarms Internal alarms The RECAL board detects up to 56 internal alarms logical signals. Internal alarms are wire loops that can only be opened or closed by dry contacts or open collectors. A closed loop forces a low logic level (less than 1.35 V) on the trigger output, which indicates that there is no alarm. An open loop forces a high logic level (greater than 3.15 V) on the trigger output. The CPU runs polling sequences to recognize the alarm state. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 48VDC power supply Board description 48VDC/5VDC Conversion +5Vdc 2--9 +12VDC isolated 5VDC/12VDC Isolated Conversion Power supply Reset logic LEDs Debug PORT CPU Flash EPROM io Loopback logic Memory sci io SRAM Address decoding logic @, data /irq io Cabinet reference number SEL[4:7] Control unit 4 A/D inputs A/D channels 4 remote control outputs Remote control 88 internal alarms Internal alarms interface 16 external alarms External alarms interface Alarms interface Figure 2--4 HDLC controller PCM interface 2 PCMs from/to Cavities 2 PCMs from/to CMCFs Communication interface RECAL board functional diagram Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--10 Board description Nortel Networks Confidential Unprotected external alarms The RECAL board detects unprotected external alarms the same as the internal alarms, which can be used inside the cabinet or within a few meters outside the cabinet. Protected external alarms The RECAL board detects up to 16 protected external alarms. These alarms can be used outside the cabinet by adding two ALPRO boards, which manage 8 alarms each. A closed loop forces a low logic level (0 mA) on the optocoupler collector, indicating that there is no alarm. An open loop forces a high logic level (5 mA) on the optocoupler collector, indicating that there is an alarm. The operation is performed via the external remote commands (close/open relay) accessible via the ALPRO box connected to the EXT. P. connector of the RECAL board. The EXT. P. (external protected alarm) connector provides pins ETC0A (pin17) and ETC0B (pin18), both connected to an internal relay ETC0 within the RECAL board (see Table 2--8). 2.2.1.2 Analog to digital inputs The RECAL board reads four analog channels (voltage 0 to 5 V DC) that are converted in digital signals by an eight--bits signal into a analog/digital converter. 2.2.1.3 Remote control outputs Four remote control relay outputs are provided with a maximum current of 80 mA and a maximum voltage of 72 V DC. 2.2.2 Physical description This section describes the LEDs, connectors, and the electrical characteristics of the RECAL board. 2.2.2.1 Front panel The front panel of the RECAL board has the following: One reset button Three LEDs Six connectors The reset button allows a hard reset of the board. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--11 The front panel of the RECAL board is shown in Figure 2--5. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--12 Board description Nortel Networks Confidential RECAL PCM RESET EXT. NP. BIST +5V RDY PWR EXT. P. PCM OUT INT. Screws Figure 2--5 RECAL board PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.2.2.2 Board description 2--13 LEDs There are three LEDs on the front panel of the RECAL board, described in Table 2--3. Type Board state indicators Table 2--3 No. of LEDs Label (color) Meaning (when lit) BIST (yellow) The built--in self--test is running or is stopped with a default result. +5 V (green) The power is on. RDY (green) The board is operating normally. LEDs on the front panel of the RECAL board Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--14 2.2.2.3 Nortel Networks Confidential Connectors There are six connectors on the front panel of the RECAL board, which are wired to corresponding connectors on left/right side of the board (see Figure 2--5) Additionally, there are two connectors that are accessible only from inside the board. Access No. of connectors Front panel PCM SCSI 50--pin female PCM lines to and from the CBCF and cabinet reference number. Wired to the P4 connector soldered on the inside of the board. The debug port (P0) inside the board is connected to the PCM connector. PWR Sub--D 3--pin male Type 3W3 48 V DC Power supply input. PCM Out Sub--D 25--pin female PCM lines to and from cavities. Wired to the P6 connector soldered on the inside of the board. INT Sub--D high density 62--pin female 56 internal alarms (32 to 87). Wired to the P3 connector soldered on the inside of the board. EXT. P. Sub--D 50--pin female 16 external protected alarms and 4 remote control outputs. Wired to the P5 connector soldered on the inside of the board. EXT.NP. Sub--D 50--pin female 32 internal alarms (0 to 31) and 4 analog to digital conversion channels. Wired to the P2 connector soldered on the inside of the board. P0 Sub--D 9--pin male Debugging port (the connector is not equipped). P1 10--pin male EPLD Programming port, used in the factory to program the EPLD. Inside the board Table 2--4 PE/DCL/DD/0142 411--9001--142 Label Type Purpose RECAL board connectors Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--15 Pin connections The pin connections and their significance are identified in Table 2--5 to Table 2--12. Pin no. Purpose Pin no. Purpose 50 47 RXDBG 44 48 PCBUG0 45 Pin no. Purpose 49 TXDBG 46 GND 43 GND 41 GND 42 GND 40 GND 38 NSEL6 39 NSEL7 37 NSEL5 35 GND 36 NSEL4 34 NMICR1 32 NH4M 33 NMICR0 31 NMICE0 29 NMICE1 30 NSY 28 26 27 25 23 24 22 20 21 19 17 GND 18 GND 16 GND 14 SEL7 15 GND 13 SEL6 11 SEL4 12 SEL5 10 GND MICR0 MICR1 H4M SY MICE0 MICE1 Legend: H4M 4 MHz clock SY Frame synchronization signal MICE Transmit PCM line MICR Receive PCM line GND Ground SEL/NSEL Cabinet number selection Table 2--5 PCM pin connections Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--16 Board description Nortel Networks Confidential Purpose Pin no. Pin no. Purpose 13 GND 25 NSY 12 SY 24 NH4M 11 H4M 23 NMICR1 10 MICR1 22 NMICR0 MICR0 21 NMICE1 MICE1 20 NMICE0 MICE0 19 GND GND 18 GND GND 17 NSEL7 SEL7 16 NSEL6 SEL6 15 NSEL5 SEL5 14 NSEL4 SEL4 Legend: H4M 4 MHz clock SY Frame synchronization signal MICE Transmit PCM line MICR Receive PCM line GND Ground Table 2--6 PE/DCL/DD/0142 411--9001--142 PCM--out pin connections Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Pin no. Board description Purpose Pin no. Purpose Pin no. 2--17 Purpose 42 GND 21 DALI87 62 DALI86 41 DALI85 20 DALI84 61 DALI83 40 DALI82 19 DALI81 60 DALI80 39 DALI79 18 GND 59 DALI78 38 DALI77 17 DALI76 58 DALI75 37 DALI74 16 DALI73 57 DALI72 36 DALI71 15 DALI70 56 DALI69 35 DALI68 14 DALI67 55 DALI66 34 GND 13 DALI65 54 DALI64 33 DALI63 12 DALI62 53 DALI61 32 DALI60 11 DALI59 52 DALI58 31 DALI57 10 DALI56 51 DALI55 30 DALI54 DALI53 50 GND 29 DALI52 DALI51 49 DALI50 28 DALI49 DALI48 48 DALI47 27 DALI46 DALI45 47 DALI44 26 DALI43 DALI42 46 DALI41 25 GND DALI40 45 DALI39 24 DALI138 DALI37 44 DALI36 23 DALI135 DALI34 43 DALI33 22 GND DALI32 Legend: DALI Internal Alarm Detection GND Ground Table 2--7 Internal pin connections Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--18 Board description Pin no. Nortel Networks Confidential Purpose 50 Pin no. Purpose Pin no. 33 MLC 17 Purpose 49 ETC1B_ALPRO1 32 MLC 16 ETC1A_ALPRO1 48 +5V 31 ETC0A_ALPRO1 15 ETC0B_ALPRO1 47 +5V 30 46 ME_ALPRO1 29 DALE6_ALPRO1 13 DALE7_ALPRO1 45 ME_ALPRO1 28 DALE4_ALPRO1 12 DALE5_ALPRO1 44 ME_ALPRO1 27 DALE2_ALPRO1 11 DALE3_ALPRO1 43 ME_ALPRO1 26 DALE0_ALPRO1 10 DALE1_ALPRO1 42 ME_ALPRO1 25 41 MLC 24 ETC1A_ALPRO0 ETC1B_ALPRO0 40 MLC 23 ETC0B_ALPRO0 +5V 39 ETC0A_ALPRO0 22 +5V 38 14 21 DALE7_ALPRO0 ME_ALPRO0 37 DALE6_ALPRO0 20 DALE5_ALPRO0 ME_ALPRO0 36 DALE4_ALPRO0 19 DALE3_ALPRO0 ME_ALPRO0 35 DALE2_ALPRO0 18 DALE1_ALPRO0 ME_ALPRO0 34 DALE0_ALPRO0 ME_ALPRO0 Legend: -- DALE: External alarm detection -- ETC: Remote control emission -- ME: External Mass (isolated from logic mass) -- MLC: Common Logic Mass Table 2--8 PE/DCL/DD/0142 411--9001--142 EXT. P pin connections Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description Purpose Pin no. Pin no. Purpose Pin no. 2--19 Purpose 50 GND 33 DALI 21 17 GND 49 DTA3 32 DALI 20 16 DALI 11 48 DTA2 31 DALI 19 15 DALI 10 47 GND 30 GND 14 DALI 9 46 DALI 31 29 DALI 18 13 GND 45 DALI 30 28 DALI 17 12 DALI 8 44 DALI 29 27 DALI 16 11 DALI 7 43 DALI 28 26 GND 10 DALI 6 42 GND 25 GND GND 41 DALI 27 24 DTA1 DALI 5 40 DALI 26 23 DTA0 DALI 4 39 DALI 25 22 GND DALI 3 38 GND 21 DALI 15 GND 37 DALI 24 20 DALI 14 DALI 2 36 DALI 23 19 DALI 13 DALI 1 35 DALI 22 18 DALI 12 DALI 0 34 GND GND Legend: DALI Internal Alarm Detection GND Ground Table 2--9 Ext. NP. pin connections Pin no. Purpose (--) 48 V GND (+) 48 V Table 2--10 PWR pin connections Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--20 Board description Pin no. Nortel Networks Confidential Purpose Purpose GND RXDBG TXDBG PCBUG0 GND Table 2--11 Pin no. P0 (Debug) pin connections Purpose Pin no. Purpose TCK GND TDO +5 TMS Table 2--12 2.2.2.4 Pin no. TDI 10 GND P1 (EPLD JTAG) port pin connections Electrical characteristics The RECAL board is powered by a nominal 48 V DC. The nominal supply current is approximately 600 mA. A DC/DC converter (48 V to 5 V) on the board supplies logic circuits with +5 V DC. The +5 V DC supply is available on the EXT.P external connector (and P5 internal connector) for the possible heating resistors mounted on the ALPRO boards. A second DC/DC isolated stages converter (5 V to 12 V) provides external alarm detection circuits with +12 V DC isolated supply. A EMC filter is designed on the board between 48 V DC input and the primary stage of the DC/DC (48 V to 5 V) converter. Its maximum consumption is 15 W. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.2.3 Board description 2--21 List of connected internal alarms Connected internal alarms are the only internal alarms that can be used. The list of alarms and the corresponding DALI pins (internal alarm detection) on the INT0 connector are identified in the following tables: Table 2--13 – S12000 Indoor BTS (base and extension cabinets) Table 2--15 – S12000 Outdoor BTS (base and extension cabinets) Origin F--type converter Alarm DALI RECAL INT connector PIn High temperature Converter F0 DALI80 60 Behavior signal Converter F0 DALI81 19 High temperature Converter F1 DALI82 40 Behavior signal Converter F1 DALI83 61 Doors Door alarm DALI87 21 VSWR--meter VSWR0 Level 1 fault DALI33 43 VSWR0 Level 2 fault DALI34 VSWR0 Level 3 fault DALI35 23 VSWR1 Level 1 fault DALI37 VSWR1 Level 2 fault DALI38 24 VSWR1 Level 3 fault DALI39 45 VSWR2 Level 1 fault DALI41 46 VSWR2 Level 2 fault DALI42 VSWR2 Level 3 fault DALI43 26 VSWR3 Level 1 fault DALI45 VSWR3 Level 2 fault DALI46 27 VSWR3 Level 3 fault DALI47 48 VSWR4 Level 1 fault DALI49 28 VSWR4 Level 2 fault DALI50 49 VSWR4 Level 3 fault DALI51 VSWR5 Level 1 fault DALI53 VSWR5 Level 2 fault DALI54 30 VSWR5 Level 3 fault DALI55 51 VSWR6 Level 1 fault DALI57 31 VSWR--meter Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--22 Board description Origin LNA PE/DCL/DD/0142 411--9001--142 Nortel Networks Confidential Alarm DALI RECAL INT connector PIn VSWR6 Level 2 fault DALI58 52 VSWR6 Level 3 fault DALI59 11 VSWR7 Level 1 fault DALI61 53 VSWR7 Level 2 fault DALI62 12 VSWR7 Level 3 fault DALI63 33 VSWR8 Level 1 fault DALI65 13 VSWR8 Level 2 fault DALI66 55 VSWR8 Level 3 fault DALI67 14 VSWR9 Level 1 fault DALI69 56 VSWR9 Level 2 fault DALI70 15 VSWR9 Level 3 fault DALI71 36 VSWR10 Level 1 fault DALI73 16 VSWR10 Level 2 fault DALI74 37 VSWR10 Level 3 fault DALI75 58 VSWR11 Level 1 fault DALI77 38 VSWR11 Level 2 fault DALI78 59 VSWR11 Level 3 fault DALI79 39 LNA0 fault DALI32 LNA1 fault DALI36 44 LNA2 fault DALI40 LNA3 fault DALI44 47 LNA4 fault DALI48 LNA5 fault DALI52 29 LNA6 fault DALI56 10 LNA7 fault DALI60 32 LNA8 fault DALI64 54 LNA9 fault DALI68 35 LNA10 fault DALI72 57 LNA11 fault DALI76 17 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description Origin Alarm Blower Table 2--13 2--23 RECAL INT connector PIn DALI Blower_ALA1 DALI84 20 Blower_ALA2 DALI85 41 Blower_ALA3 DALI86 62 List of alarms and INT0 connector DALIs (S12000 Indoor BTS, base and extension cabinets) The values of this table correspond to the static wiring scheme between COMICO and RECAL. In function of the configuration and of the BTS cabling, the logical value associated to the origin of alarms can be different from the static value. For example, the following table gives the correspondence between static values and logical values for the 3H4D+RxF S444 an 3 H4D S012 configuration. Static Values 3 H4D+RxF S444 3 H4D S012 DALI LNA0 VSWR0 Level 1 fault VSWR0 Level 2 fault VSWR0 Level 3 fault LNA0 LNA0 DALI36 VSWR1 Level 1 fault VSWR0 Level 1 fault VSWR0 Level 1 fault DALI37 VSWR1 Level 2 fault VSWR0 Level 2 fault VSWR0 Level 2 fault DALI38 VSWR1 Level 3 fault VSWR0 Level 3 fault VSWR0 Level 3 fault DALI39 LNA2 VSWR2 Level 1 fault VSWR2 Level 2 fault VSWR2 Level 3 fault LNA1 LAN1 DALI44 VSWR3 Level 1 fault VSWR1 Level 1 fault VSWR1 Level 1 fault DALI45 VSWR3 Level 2 fault VSWR1 Level 2 fault VSWR1 Level 2 fault DALI46 VSWR3 Level 3 fault VSWR1 Level 3 fault VSWR1 Level 3 fault DALI47 LNA1 LNA3 LNA4 Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--24 Static Values 3 H4D+RxF S444 Nortel Networks Confidential 3 H4D S012 DALI VSWR4 Level 1 fault VSWR4 Level 2 fault VSWR4 Level 3 fault LNA2 LNA2 DALI52 VSWR5 Level 1 fault VSWR2 Level 1 fault VSWR2 Level 1 fault DALI53 VSWR5 Level 2 fault VSWR2 Level 2 fault VSWR2 Level 2 fault DALI54 VSWR5 Level 3 fault VSWR2 Level 3 fault VSWR2 Level 3 fault DALI55 LNA6 VSWR6 Level 1 fault VSWR6 Level 2 fault VSWR6 Level 3 fault LNA7 VSWR7 Level 1 fault VSWR7 Level 2 fault VSWR7 Level 3 fault LNA8 VSWR8 Level 1 fault VSWR8 Level 2 fault VSWR8 Level 3 fault LNA9 VSWR9 Level 1 fault VSWR9 Level 2 fault VSWR9 Level 3 fault LNA11 VSWR10 Level 1 fault VSWR10 Level 2 fault VSWR10 Level 3 fault LNA11 VSWR11 Level 1 fault VSWR11 Level 2 fault VSWR11 Level 3 fault LNA5 LNA7 LNA9 LNA10 Table 2--14 PE/DCL/DD/0142 411--9001--142 60 68 72 Example of alarm affectation in function of S12000 Indoor configuration Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--25 Note: An X in a column indicates that the alarm is not used with a particular configuration Origin F--type converter Alarm DALI RECAL INT connector PIn High temperature Converter F0 DALI80 60 Behavior signal Converter F0 DALI81 19 High temperature Converter F1 DALI82 40 Behavior signal Converter F1 DALI83 61 Doors Door alarm DALI87 21 VSWR--meter VSWR0 Level 1 fault DALI77 43 VSWR0 Level 2 fault DALI78 VSWR0 Level 3 fault DALI79 23 VSWR1 Level 1 fault DALI73 VSWR1 Level 2 fault DALI74 24 VSWR1 Level 3 fault DALI75 45 VSWR2 Level 1 fault DALI69 46 VSWR2 Level 2 fault DALI70 VSWR2 Level 3 fault DALI71 26 VSWR3 Level 1 fault DALI65 VSWR3 Level 2 fault DALI66 27 VSWR3 Level 3 fault DALI67 48 VSWR4 Level 1 fault DALI61 28 VSWR4 Level 2 fault DALI62 49 VSWR4 Level 3 fault DALI63 VSWR5 Level 1 fault DALI57 VSWR5 Level 2 fault DALI58 30 VSWR5 Level 3 fault DALI59 51 VSWR6 Level 1 fault DALI53 31 VSWR6 Level 2 fault DALI54 52 VSWR6 Level 3 fault DALI55 11 VSWR7 Level 1 fault DALI49 53 VSWR7 Level 2 fault DALI50 12 VSWR--meter Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--26 Origin LNA Blower Table 2--15 PE/DCL/DD/0142 411--9001--142 Nortel Networks Confidential Alarm DALI RECAL INT connector PIn VSWR7 Level 3 fault DALI51 33 VSWR8 Level 1 fault DALI45 13 VSWR8 Level 2 fault DALI46 55 VSWR8 Level 3 fault DALI47 14 VSWR9 Level 1 fault DALI41 56 VSWR9 Level 2 fault DALI42 15 VSWR9 Level 3 fault DALI43 36 VSWR10 Level 1 fault DALI37 16 VSWR10 Level 2 fault DALI38 37 VSWR10 Level 3 fault DALI39 58 VSWR11 Level 1 fault DALI33 38 VSWR11 Level 2 fault DALI34 59 VSWR11 Level 3 fault DALI35 39 LNA0 fault DALI76 LNA1 fault DALI72 44 LNA2 fault DALI68 LNA3 fault DALI64 47 LNA4 fault DALI60 LNA5 fault DALI56 29 LNA6 fault DALI52 10 LNA7 fault DALI48 32 LNA8 fault DALI44 54 LNA9 fault DALI40 35 LNA10 fault DALI36 57 LNA11 fault DALI32 17 Cooler_0 DALI84 20 Cooler_1 DALI85 41 Hood_Alarm DALI86 62 List of alarms and INT0 connector DALIs (S12000 Outdoor BTS, base and extension cabinets) Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.2.4 Board description 2--27 List of unprotected external alarms The following pins on the INT1 connector can be used to receive up to 32 unprotected external alarms: DALI 0 to DALI 20 MLC The above pins presently are not used in the S12000 Indoor BTS. Table 2--16 identifies the DALIs in the S12000 Outdoor BTS. Origin Alarm DALI number AC MAIN ALARM Main breaker DALI 0 SURGE ALARM Surge fail DALI 1 AC--DC RECTIFIERS ALARMS AC fault DALI 2 DC fault DALI 3 Over temperature DALI 4 Load1 threshold DALI 5 PCU protective devices DALI 6 Battery on discharge DALI 7 User 1 DALI 8 User 2 DALI 9 User 3 DALI 11 User 4 DALI 12 User 5 DALI 13 BATTERY BREAKER ALARM Disconnected battery DALI 14 EXTERNAL BATTERY ALARM Thermal fault DALI 15 DC breaker fault DALI 16 Door open DALI 17 AC breaker fault DALI 18 Surge DALI 19 Spare DALI 20 USER ALARMS Not used DALI 21 Not used DALI 22 to DALI 24 Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--28 Board description Nortel Networks Confidential Origin DALI number Not used DALI 25 to DALI 27 Not used DALI 28 to DALI 31 Table 2--16 PE/DCL/DD/0142 411--9001--142 Alarm Unprotected external alarms (S12000 Outdoor BTS, base and extension cabinets) Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.3 Board description 2--29 ALPRO board The ALPRO board protects up to eight external alarms and up to two remote controls of the RECAL board. 2.3.1 Principle The external alarms and remote controls are intended to be connected to equipment outside the cabinets. This equipment may be connected, temporarily or permanently, to outside line conductors affected by electrical disturbances. The ALPRO board protects against these disturbances. One ALPRO board protects half of the external interfaces available in the RECAL board. There may therefore be two ALPRO boards for one RECAL board. Depending on how many external alarms are used, one or two ALPRO boards may be installed. 2.3.2 Description The ALPRO board (see Figure 2--6 presented in S12000 Outdoor configuration) provides only secondary protection. Primary protection devices are associated with the board to protect the lines themselves. A cable linking the board ground to a cabinet ground bar discharges energy caused by outside disturbances. 2.3.2.1 External alarm protection circuit The first part of the external alarm protection circuit comprises a surge arrestor and thermal resistors, which protect the board against power surges and limit the current in wires and connectors. The second part limits the voltage and current returning to the RECAL board. It consists of transils and thermal resistors. 2.3.2.2 Remote control protection circuit The first part of the remote control protection circuit comprises a surge arrestor and thermal resistors, which protect the board against power surges and limit the current in wires and connectors. The second part protects the relays and connections of the RECAL board. It consists mainly of thermal resistors. 2.3.3 S12000 Outdoor BTS environmental conditions The ALPRO board is located in a sealed environment inside the skirting of the cabinet. It is designed to operate at temperatures between - 40°C (--40°F) and +80°C (176°F). Two thermoresistors supplied with +5 V prevent condensation inside the case of the ALPRO card. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--30 Board description Nortel Networks Confidential NORTEL Figure 2--6 ALPRO board PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.3.4 Board description 2--31 S12000 Indoor BTS environmental conditions ALPRO modules are located at the top of the radio cabinet. The precise location is presented on the overview figure. 2.3.5 Connectors The ALPRO board has three connectors: A 25--pin male connector connects the ALPRO board to the RECAL board: Pin no. Purpose Pin no. Purpose 14 DALE0 ME 15 ME DALE1 16 DALE3 DALE2 17 DALE4 ME 18 ME DALE5 19 DALE7 DALE6 ME 20 21 +5 V 22 ETC0B ETC0A 23 MLC 10 +5 V 24 ETC1B 11 ETC1A 12 MLC 25 13 Legend: ETC Remote Control DALE External Alarm Protected Detection ME External ground Table 2--17 ALPRO 25--pin connections Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--32 Board description Nortel Networks Confidential Two 10--pin connectors connect the ALPRO board to the external alarms: Connector J1 TC0A NALE4 TC0B PALE4 TC1A NALE3 TC1B PALE3 NALE7 NALE2 PALE7 PALE2 NALE6 NALE1 PALE6 PALE1 NALE5 NALE0 10 PALE5 10 PALE0 Table 2--18 PE/DCL/DD/0142 411--9001--142 Connector J2 ALPRO 10--pin connections Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.4 F--type converter 2.4.1 Principle Board description 2--33 The F--type converter converts a 48 V DC voltage into two power sources, - 15 V and +15 V. It powers the radio equipments such as the Low Noise Amplifiers (LNA), the variable gain amplifiers and the VSWR measuring devices. 2.4.2 Description The F--type converter has a switch on its front panel that can be used to disconnect the input voltage. It also has two outputs that can be connected in parallel with identical outputs of another F--type converter. 2.4.2.1 Input voltage Nominal input voltage: 48 V (40.5 V to 57 V) 2.4.2.2 Output voltages The two output voltages supplied by the converter are as follows: Source 1: Nominal voltage: +15 V Nominal current: 7 A Source 2: Nominal voltage: - 15 V Nominal current: 4 A Output voltages can be individually adjusted up to +15% and - 5% of nominal voltage. 2.4.2.3 Alarms Several alarm signals can be generated, in the following cases: One of the two output voltages is either lower than the Low Voltage Limit (LVL) or higher than the High Voltage Limit (HVL). These limit voltages are: • LVL: 13.25 V ± 0.25 V • HVL: 18.5 V ± 0.5 V The switch on the front panel is set to “OFF”. The converter temperature is too high. Finally, an event alarm is generated when there is a logic OR between the other alarms. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--34 Board description 2.4.3 Nortel Networks Confidential Front panel The F--type converter front panel has several connectors and LEDs (see Figure 2--7). 2.4.3.1 LEDs Two green LEDs provide information on the status of the converter. 2.4.3.2 Connectors Two connectors are on the front panel of the converter: A female, Sub--D, 15--pin connector supplies output voltages and alarm signals. A male, 3W3, Sub--D connector receives input voltages. GND 15 V alarm Switch “OFF” alarm High temperature alarm GND --15 V alarm GND Event alarm GND 10 GND 11 15 V 12 15 V 13 --15 V 14 --15 V 15 GND Table 2--19 --48 V Mechanical ground +48 V Table 2--20 PE/DCL/DD/0142 411--9001--142 Output voltages and alarm signals connector Input voltages connector Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--35 Test points --15V 0V +15V Power in --15V +15V LEDs Switch Power out/alarms Screws Figure 2--7 F--type converter Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--36 Nortel Networks Confidential 2.5 RF Combiner 2.5.1 Principle There are three types of RF Combiner modules: duplexer--only (D) hybrid two--way duplexer (H2D) hybrid four--way duplexer (H4D) The functional diagrams of each RF Combiner type are shown in Figure 2--8. Table 2--21 describes the components in each type of RF Combiner module. RF Combiner Type -- Duplexer -- Reception Amplifier (LNA splitter) -- VSWR Meter (optional) H2D -- Duplexer -- Reception Amplifier (LNA splitter) -- Two--way Two way transmission coupling (H2D) -- VSWR Meter (optional) H4D -- Duplexer -- Reception Amplifier (LNA splitter) -- Four--way transmission coupling (H4D) -- VSWR Meter (optional) Table 2--21 2.5.1.1 Contents Content of RF Combiner modules Duplexer The duplexer allows transmission and reception to occur on the same antenna. This reduces the number of antennas required for a cabinet. The duplexer also performs filtering for reception and transmission. When no receive filtering or transmit coupling is required, then the Tx--Filter (TxF) module can be used instead of the duplexer. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--37 Antenna Duplexer LNA--splitter RX in Ext 0 Ext 1 LNA Int 0 To RX--splitter --2 dB Int 1 TX in Offset From PAs Offset Envelope detector VSWR meter +/-RF combiner Power supply and three alarms Figure 2--8 Duplexer--only (D) RF Combiner diagram Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--38 Nortel Networks Confidential Antenna Duplexer LNA--splitter RX in Ext 1 Ext 2 LNA Int 1 To RX--splitter --2 dB Int 2 TX in Hybrid coupler 50 Ω Reverse Forward Offset TX out Offset Envelope detector PA in 1 From e--PAs 50 Ω PA in 2 VSWR meter Frw 50 Ω +/-RF combiner Power supply and three alarms Figure 2--9 H2D RF Combiner diagram PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--39 Antenna Duplexer LNA--splitter RX in Ext 0 Ext 1 LNA Int 0 To RX--splitter --2 dB Int 1 TX in Hybrid coupler PA in 1 Offset Offset Hybrid coupler Envelope detector PA in 2 50 Ω TX out VSWR meter From PAs Hybrid coupler 50 Ω +/-- PA in 3 PA in 4 50 Ω RF combiner Power supply and three alarms Figure 2--10 H4D RF Combiner diagram Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--40 Board description 2.5.1.2 Nortel Networks Confidential Reception amplifier The reception signal amplifier, also called the LNA--splitter, has two functions: amplifies the signal from the antenna using a Low Noise Amplifier (LNA) splits the signal from the antenna into four signals The LNA--splitter has the following attenuation or gain values: The LNA has a nominal gain of 28.5 dB (GSM 850) and 32 dB (GSM 1900). The two splitter stages cause attenuation less than 7 dB. A 2 dB attenuator handles differences in cable attenuation between the two extension outputs (EXT) and the two internal outputs (INT). The two extension outlets, which are not used at present, will make future configuration upgrades possible. The LNA--splitter is supplied with ± 15 V DC (± 5%) and its maximum current consumption is 370 mA (+ 15 V), 50 mA (-- 15 V). The module generates an alarm if LNA consumption deviates by more than 30% from the nominal value. On the front of the LNA--splitter board, there is a 9--pin male connector whose pin connection is as follows: --15 V 0V Alarm Not used + 15 V 0V 0V Not used + 15 V Table 2--22 PE/DCL/DD/0142 411--9001--142 Amplifier pin connections Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.5.1.3 Board description 2--41 Hybrid transmission coupling According to the hybrid coupling type, transmission coupling consists of a single hybrid coupler for H2D configurations or three hybrid couplers mounted in two stages for H4D configurations. The two--way hybrid coupler (H2D) consists of: two isolators, one at each input port, which allows the protection of the Power Amplifier (PA) against reflected signals, and also permits the isolation necessary between transmitters. a hybrid coupler, which combines two transmission signals on only one port. This subsystem is part of the RF Combiner module (H2D, or H4D). The maximum attenuation is an RF Combiner module is dedicated to one frequency band. When any transmission coupling system is requested (in the case of one TRX per antenna), the Tx--Filter (Tx--F) module can be used with two duplexer--only (D) modules in order to provide Rx main and diversity signals. The Tx--Filter module is dedicated to one frequency band. Refer to Paragraph 2.6 “Tx--Filter module” on page 2--48 for information about the Tx--Filter. 2.5.1.4 VSWR--meter The VSWR--meter can be included as an optional unit in the RF Combiner module or in the Tx--Filter module. The VSWR--meter allows the signal strength of the voltage standing wave ratio (VSWR) to be monitored on the antenna connector and to verify the connection between the antenna and the BTS. This module needs BTS signals transmission to be able to switch on (no alarm with “Receive antenna” only) The VSWR--meter receives transmitted and reflected signals sampled through two directional antennas located inside the duplexer unit or Tx--Filter unit. The transmit and receive signals are first converted into two DC voltages by using envelope detection. Two logarithmic amplifiers, one for transmit power signal, and one for reflected power signal, then amplify both converted signals. The two channels are added and subtracted to obtain the stationary wave ratio. This value is compared to three thresholds (1.7:1, 2:1, and 3:1), each of which triggers an alarm if it is exceeded. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--42 Board description 2.5.2 Nortel Networks Confidential RF Combiner front panels The front panels of the RF Combiner types are shown in Figure 2--11 to Figure 2--13. 2.5.2.1 Duplexer The duplexer connectors on the front panel of the RF Combiner are: a female 7/16 antenna connector a female N type transmission connector a female, SMA type connector (Rev) a female, SMA type connector (Fwd) A female, SMA type reception connector is present at the rear of the duplexer. 2.5.2.2 LNA--splitter The connectors on the LNA--splitter front panel are: two female, SMA type, output (EXT) connectors to the RX--splitter of the extension rack two female, SMA type, RX--splitter output (INT) connectors a male, 9--pin power supply connector A female, SMA type, radio signal input connector is present at the rear of the LNA--splitter. 2.5.2.3 Transmission coupling For duplexer--only configurations, the transmission signal input connector on the front panel is a female, N type connector (TX--in). Duplexer Tx input is described hereafter. For H2D configurations, the connectors on the front panel are: two female, N type, transmission signal input connectors (PA in) a female, N type, output connector (TX--out) a female, N type input connector (TX--in). Duplexer Tx input is described hereafter PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--43 TX_in Screws Int_0 Int_1 Ext_0 Ext_1 Antenna Rev Fwd Pwr/ Alarm Pwr/ Alarm VSWR Fwd Rev Figure 2--11 Cables always provided with VSWR meter Duplexer--only (D) RF Combiner Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--44 Nortel Networks Confidential PA_in TX_in Screws PA _in TX_out Int_0 Int_1 Ext_0 Ext_1 Antenna Rev Fwd Pwr/Alarm Pwr/ Alarm VSWR Fwd Rev Figure 2--12 Cables always provided with VSWR meter Two--way hybrid duplexer (H2D) RF Combiner PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--45 PA_in PA_in PA_in TX_out PA_in TX_in Int_0 Int_1 Ext_0 Ext_1 Antenna Rev Pwr/Alarm Fwd Pwr/ Alarm VSWR Fwd Rev Cables always provided with VSWR meter Screws Figure 2--13 Four--way hybrid duplexer (H4D 1800/900 Mhz) RF Combiner Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--46 Nortel Networks Confidential PA_in PA_in PA_in TX_out PA_in TX_in Int_0 Int_1 Ext_0 Ext_1 Antenna Rev Pwr/Alarm Fwd Pwr/ Alarm VSWR Fwd Rev Screws Figure 2--14 PE/DCL/DD/0142 411--9001--142 Four--way hybrid duplexer (H4D 850/1900 MHz) RF Combiner Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--47 For H4D configurations, the connectors on the front panel are: four female, N type, transmission signal input connectors (PA--in) a female, N type, output connector (Tx--out) a female, N type, input connector (Tx--in). Duplexer Tx input is described hereafter. 2.5.2.4 VSWR--meter The connectors on the VSWR--meter front panel are: a female, SMA type, reflected power connector (Rev) a female, SMA type, transmitted power connector (Fwd) a male 9--pin, sub--D connector for power supply and alarms, with the following pin connection: Table 2--23 -- 15 V 0V Alarm 1 Alarm 2 + 15 V 0V 0V Alarm 3 + 15 V VSWR pin connections Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--48 2.6 Nortel Networks Confidential Tx--Filter module The purpose of the Tx--Filter (Tx--F) is to filter the transmitted signal and to protect the power amplifier (PA). The Tx--F does not contain a transmission coupling system or a receiver filter. The Tx--Filter module is composed of (see Figure 2--15): a transceiver filter unit a coupling system dedicated to the VSWR--meter an optional VSWR--meter that monitors the link between the BTS and the antenna. The Tx--Filter module is used with the duplexer--only RF Combiner (D) to extend configurations beyond two DRXs per cell. The Tx--Filter does not perform reception functions and must be used with the RF Combiner (D) to ensure reception distribution. The Tx--Filter module can be equipped with an optional VSWR--meter which shares the same front panel so that there is only one unit to plug into the BTS rack. With or without the optional VSWR--meter, the Tx--Filter module is half the size of the two--way hybrid (H2D) and duplexer--only (D) RF Combiner. 2.6.1 VSWR-- meter The function of the VSWR--meter (see Figure 2--16) is described in the section “RF Combiner”. The VSWR--meter connectors on the front panel of the Tx--Filter are the same as those of the RF Combiner and are described in the section “RF Combiner connectors”. Although the VSWR--meter delivers three alarm lines, only two are reported to the OMC--R because of COMICO constraints. These alarm thresholds correspond to 2:1 and 3:1 VSWR values. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--49 PA_IN Antenna Test Fwd Rev loop Rev Fwd Pwr/Alarm Figure 2--15 Screws Tx--Filter (Tx--F) module Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--50 Board description Nortel Networks Confidential Antenna TX in (from PA) TX Forward Reverse Optional VSWR--meter Alarms 1 Figure 2--16 Tx--Filter (Tx--F) functional diagram PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.7 Board description 2--51 Compact BCF (CBCF) module This section provides a functional and physical description of the CBCF Module and of the following CBCF Module boards: CPCMI CMCF Phase2 BCFICO CBP POWER ICO 2.7.1 Functional description The CBCF Module performs functions common for a site and also manages its alarm management unit, the RECAL board. The base common functions of the BTS are performed by two main CBCF Module boards: the CMCF and the CPCMI. The CMCF Phase2 board performs the concentration, switching, and synchronization functions of the BTS. The CPCMI board ensures the interface between the external PCMs of the A--bis interface and the internal private PCMs. Private PCM links connect the CBCF (via the CMCF) to the other BTS components. The CBCF also uses private PCMs for internal communication between CBCF boards. The boards and their functions are identified in Table 2--24. Board* Function Quantity CPCMI ABIS double PCM link interface 1 to 3 CMCF Concentration, routing, and synchronization 1 or 2 BCFICO Interconnection between the CPCMI, CMCF Phase2 boards and external communication links CBP Interconnection between CPCMI, CMCF, and BCFICO boards Phase2 * Legend: CPCMI Compact PCM Interface CMCF Compact Main Common Functions BCFICO Base Common Functions Interconnection CBP CBCF Back Panel Table 2--24 CBCF module boards Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--52 Board description 2.7.2 Nortel Networks Confidential Physical description Although the CBCF Module boards are fitted into a compact module, the CMCF, CPCMI, and BCFICO boards can be accessed from the front panel and replaced. The aim is to reduce the number of boards, to take advantage of the new technologies and to reach a high level of integration to allow software updating from OMC without any intervention on the site. Figure 2--17 show the CBCF module front panel. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Figure 2--17 Board description 2--53 S12000 BTS: CBCF module Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--54 Board description 2.7.3 CPCMI Board 2.7.3.1 S12000 CPCMI board Nortel Networks Confidential Depending on the requirements, the CBCF Module can contain one to three CPCMI boards. This Compact PCM interface board handles two PCMs. Both PCMs can be used for the system Clock of the BTS. 2.7.3.2 Functional description The CPCMI board ensures the interface between the external PCMs of the A--bis interface and the internal private PCMs. This interfacing task corresponds to an electrical level translation and a frame format conversion depending on the kind of A--bis link (PCM E1/T1 or HDSL). There are two types of CPCMI boards available used in accordance with the type of A--bis interface: CPCMI--E1 CPCMI--T1 The core of each board is generic and common to all, but each uses a different line interface. The CPCMI uses the n+1 redundancy scheme depending on: the number of required TSs the drop and insert scheme the number of CPCMIs present in the package (three maximum) The functional characteristics of the E1 and T1 boards are summarized in Table 2--25. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--55 The functional diagram of the CPCMI is shown in Figure 2--18. Function CPCMI-- E1 CPCMI--T1 Reception gain adaptation Extraction of the binary rate for transmission to the CMCF Reception and transmission buffer on two frames to allow frame alignment Transmission alignment on the CMCF clock Management of frame loss or doubling Management of alarms, signalling, and loop control Switch configuration for 120 Ohms or 75 Ohms Compliant with Recommendation G703 (HDB3 line coding) Compliant with the G823--G824 standard (jitter permitted) CRC4 Management Adaptation of transmission to the cable length Compliant with ANSI T1.403 and T1.102 (B8ZS coding) Management of frame format (SF or ESF) CRC6 Management (for ESF) Alignment of external T1 PCM rate and internal E1 PCM rate Table 2--25 Functions of CPCMI--E1 and CPCMI--T1 boards Synchronization The timing signal is extracted from the PCM clock and sent to the CMCF (RCLK). The local time is sent to the CMCF if there is no PCM timing signal (RCLK = HLOC). The CMCF selects one signal from the six received (one per PCM link) and redistributes it as a reference for all A--bis transmissions (TCLK). This signal is also the long term reference used to create the H4M timing reference. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--56 Nortel Networks Confidential A--bis Local clock CMCF PCM0 reception clock PCM0 E1 or T1 Line interface Transceiver Drivers Private PCM0 Transmission clock EPLD HDLC controller FEPROM Processing unit SRAM Debug interface E1/T1 Interface LEDs Reset logic Configuration switch TEI register TEI Transmission clock PCM1 E1 or T1 Line interface Transceiver Local clock Figure 2--18 Drivers Private PCM1 PCM1 reception clock CPCMI board functional diagram PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.7.3.3 Board description 2--57 Physical description Processing Unit The CPCMI processing unit has a rate of 4 MHz derived from a 16 MHz external oscillator. It has a 128 Kbytes RAM capacity and a 16 Mbytes FEPROM capacity. O&M communication occurs using a LAP--D on TS0 of the private PCM MIC0. Front panel The front panel contains the following: one Reset button ten LEDs eight connectors The CPCMI board is shown in Figure 2--19. LEDs The LEDs used on the front panel of the CPCMI board are described in Table 2--26. No. of LEDs Type Board state indicators State indicators of the external PCM li k (A--bis) link (A bi ) Table 2--26 Label (color) Meaning (when lit) BIST (yellow) The built--in self--test is running or is stopped with a default result. +5 V (green) The power is on. RDY (green) The board is operating normally. SKP (red) The FIFO skip indicator is common to both PCMs. LFA (red) The frame alignment is lost. One LFA per PCM link. RRA (red) The receive remote alarm. One RRA per PCM link. NOS (red) There is no signal. One NOS per PCM link. LEDs on the front panel of the CPCMI board Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--58 Board description Nortel Networks Confidential P11 P13 P9 P10 S2 S1 S3 Screw Figure 2--19 CPCMI board PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--59 The next table defines the relation between the PCM alarms and the front LED status. According to the priority order, when the simultaneous alarms are detected, only the alarm with the highest priority is declared active. PCM alarms Definition Priority NOS RRA LFA LOS: Loss Of Signal 1 (high) ON OFF OFF AIS: Alarm Indication Signal ON ON ON LFA: Loss of Frame Alignment OFF OFF ON FE: Frame Error ON ON OFF CRC: loss of multi--frame alignment OFF ON ON 6 (low) OFF ON OFF RAI: Remote Alarm Indication 2.7.3.4 CPCMI LEDs Switches The switches are used to configure the following board characteristics: cable length line build out line coding mode framing mode Fs/dl feature The position of each switch is shown on Figure 2--20 Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--60 Board description Nortel Networks Confidential ON (1) P11 S2 OFF (0) ON (1) S1 CRC/RES AMI/B8ZS FSDL LS2 LS1 LS0 MT1 MT0 CRC/RES AMI/B8ZS FSDL LS2 LS1 LS0 MT1 MT0 P9 OFF (0) PCM1 PCM0 S3 P13 Figure 2--20 P10 75 Ω 120 Ω CPCMI board: hardware switches The next tables summarize the settings of each switch of CPCMI board. S3 switch: S3 switch T1 type E1 type (0:3) -- =120: PCM1 120 Ω =75: PCM1 75 Ω (4:7) -- =120: PCM0 120 Ω =75: PCM0 75 Ω Table 2--27 PE/DCL/DD/0142 411--9001--142 CPCMI board: S3 switch Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--61 S1 and S2 switches: S1 and S2 switches T1 board E1 board MT1 MT0 Framing mode F4 not available -- -- -- SF (or D4) frame none single frame none ESF frame see CRC/RES multi--frame CRC4 F72 not available -- -- -- S1 and S2 switches CRC mode Framing mode CRC mode T1 board Cable length E1 board Line Build Out LS2 LS1 LS0 0 to 133 feet / 0dB (0 to 40.58 meters) -- 133 to 266 feet (40.58 to 81.08 meters) -- 266 to 399 feet (81.08 to 121.61 meters) 75 Ω 399 to 533 feet (121.61 to 162.46 meters) 120 Ω 533 to 655 feet (162.46 to 199.64 meters) 120 Ω --7.5 dB -- --15.0 dB 120 Ω --22.5 dB -- S1 and S2 switches T1 board E1 board FSDL =0 : FS/DL disabled =1 : FS/DL enabled -- AMI/B8ZS =0 : AMI line coding =1 : B8ZS line coding -- CRC/RES =0 : CRC decoding disabled =1 : CRC decoding enabled -- Table 2--28 CPCMI board: S1 and S2 switches Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--62 2.7.3.5 Nortel Networks Confidential Connectors The CPCMI uses 12 connectors accessed from the following locations: on the front panel (8) inside the board (4) The connectors are identified in the table below. Access No. of connectors Label Front panel XL0 Transmission connectors for PCM0. (0) LP0 A closed loop connection used for testing is attained by using one XL0 and one RL0 connectors. RL0 Reception connectors for PCM0. XL1 Transmission connectors for PCM1 (0) LP1 A closed loop connection used for testing is attained by using one XL1 and one RL1 connectors. RL1 Reception connectors for PCM1. P10 (Debug) Sub--D 9--pin male Debugging connector that is only available during tests. P9 (JTAG) HE10 10--pin male JTAG programming port used to program the EPLP prior to product delivery. P11 Millipack1 60--pin female Used for signals during nominal operation. This connector is plugged into the CBP. P13 (POWER) Millipack 1 Power supply input. In this five--row connector, only rows A, C, and E are equipped with a power signal. The rows are staggered to allow the ground connection. This connector is plugged into the CBP. Inside the board Table 2--29 PE/DCL/DD/0142 411--9001--142 Type Purpose CPCMI board connectors Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--63 Pin connections The pin connections and their significance for the CPCMI connectors are identified in Table 2--30 to Table 2--33. Pin no. Row E Purpose Pin no. Row D Purpose Pin no. Row C Purpose Pin no. Row B Purpose Pin no. Row A Purpose 12 H4M 12 MICE0 12 MICR0 12 MICE1 12 MICR1 11 NH4M 11 NMICE0 11 NMICR0 11 NMICE1 11 NMICR1 10 SY 10 HLOC 10 NSY NLOC PSYT0 PSYT1 TCLK NSYT0 NSYT1 NTCLK 10 10 CONFIG0 CONFIG1 NCONFIG0 NCONFIG1 T1E1 TEI1 TEI0 GND GND GND GND GND PRPCM0 NRPCM0 PEPCM0 NEPCM0 Legend: H4M, NH4M (V11, in) SY, NSY (V11, in) HLOC, NHLOC (V11, in) MICE, NMICE (V11, in) MICR, NMCIR (V11, in) TCLK, NTCLK (V11, in) CONFIG, NCONFIG (V11, in) T1E1 (TTL, out) TEI (TTL, in) PRPCM, NRPCM (in) PEPCM, NEPCM (out) Table 2--30 PRPCMI1 NRPCM1 PEPCMI NEPCM1 4.096 MHz Clock received from the CMCF Synchro frame of Private PCMs from the CMCF Local clock (1.544 MHz or 2.048 MHz) from the CMCF Private PCM transmission toward the CMCF External PCM reception from the CMCF External PCM transmission clock from the CMCF Configuration to the CMCF T1 or E1 toward the CMCF Position of the board in the shelf received from the CBP External PCM reception External PCM transmission Pin connections of the P11 connector Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--64 Pin no. Row E Purpose Nortel Networks Confidential Pin no. Row D Purpose Pin no. Row C Purpose Pin no. Row B Purpose Pin no. Row A Purpose GND +48 V --48 V GND +48 V --48 V GND +48 V --48 V GND +48 V --48 V GND +48 V --48 V GND +48 V --48 V Legend: GND Common logical ground Table 2--31 Pin connections of the P13 connector (Power) Pin no. Purpose Purpose GND RXDBG TXDBG PCBUG0 GND Legend: RXDBG (RS232, in) TXDBG (RS232, out) PCBUG0 (TTL, in) Table 2--32 PE/DCL/DD/0142 411--9001--142 Pin no. Reception Debug Transmission Debug Console presence Pin connections of the P10 connector (Debug) Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Pin no. Board description Purpose Pin no. TCK TDO TMS 2--65 Purpose GND TDI Legend: TCK (in) TDO (out) TMS (in) TDI (in) Table 2--33 10 GND ISP Programming signal ISP Programming signal ISP Programming signal ISP Programming signal Pin connections of the P9 connector (JTAG) Electrical characteristics The CPCMI board is powered by a nominal - 48 V DC supply. A10 W converter on the board supplies the +5 V at a maximum level of 1 A. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--66 Board description 2.7.4 Nortel Networks Confidential CMCF board The CBCF Module contains one or two CMCF boards. One CMCF board allows operation in simplex mode, while two CMCF boards provide fully redundant duplex operations. 2.7.4.1 Functional description The CMCF Phase2 board performs the following functions: synchronization of the BTS, through • selection of PCM clock • PCM link frequency measurement • input of external clock • generation of the reference frequency for the DRXs • generation of GSM Time switching signalling concentration communication with the BSC and with O&M slaves (e.g. DRX, CPCMI, RECAL) 2.7.4.2 Synchronization (SYN) An oscillator provides the SYN function. The slave CMCF operates in a phase--locked loop so that its H4M clock is in phase with the master CMCF. This ensures that synchronization is maintained during a CMCF switchover. GSM Time The processing unit writes the GSM time (72 bits) every 60 ms and the value is stored in the matrix at a rate of one bit per frame. Both the master and slave CMCF re--read the information in the matrix of the master CMCF, which ensures that GSM time is synchronized on both CMCF Phase2 boards. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.7.4.3 Board description 2--67 Physical description The CMCF Phase2 board contains the following parts: a master processing unit (33 MHz) that manages • 8 Mbytes DRAM • 4 Mbytes FLASH • one Ethernet link • one watchdog • 32 64 Kbit/s HDLC links on one PCM • one RS232 test link • PCM switching matrix • one EPLD with configuration registers • I/O ports a slave processing unit (33 MHz) that manages • one RS232 provisional link • 32 64Kbit HDLC links on one PCM • one inter--CMCF 64 Kbit/s HDLC link • I/O ports DC--DC converters with filters that provide 5 V, 12 V, and 3.3 V a SYN function that synchronizes itself on one of the six signals received from the CPCMI a system that synchronizes the PCM clocks and switchover of both CMCF Phase2 boards a system that allows the synchronous transmission of GSM time on both CMCF Phase2 boards a system that measure the frequency of clock inputs a 16 x 16 PCM switching matrix a “silence” junctor to emit the A--bis silence code a test system that allows the verification of PCM time slots a 4--bit TEI register an 8--bit register that encodes the position of 4 mini--switches (WD Enable/Disable, Normal/Maintenance, etc.) a chain switchover system Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--68 Board description Nortel Networks Confidential Electrical characteristics The CMCF Phase2 board receives a 48 V DC power supply and generates other required voltages from this single source. The CMCF Phase2 board owns one DC--DC converter only to create 5 V. Thanks to regulators, 12 V, 3.3 V and 2.5 V derive from 5 V. The 5 V power supply is required for most CMCF components, including both processing units. It has an 12 W power consumption. Therefore, a converter running at 80% will dissipate about 2.5 W. The oscillator and DAC parts of the CMCF Phase2 board require a 12 V power supply. The oscillator consumes 1 W during maintenance and up to 10 W in its preheating phase. The 3.3 V power supply is used strictly for the DRAM. Synchronization The CMCF provides synchronization for the radio part of the BTS. The CMCF hardware allows the selection of a clock from the following sources: six clock signals taken from external PCM links (from the CPCMI) CMCF master clock The long term stability of the external PCM link clock ensures the accuracy and stability required. A frequency meter function on the CMCF Phase2 board measures the clocks to determine their validity. GSM Time channel The SYN function generates and distributes the GSM--time channel on the Private PCM. The GSM--time is the local BTS time, so the counters are arbitrarily set to zero after turning on the CMCF. The GSM time channel emission is dedicated to a special hardware system. Synchronization between master and slave processing units The master processing unit fully synchronizes the slave processing unit. Fully synchronous GSM--time emission is performed through a pulse signal sent from the Master GSM--time generation hardware system to the slave system. External synchronization connection An external synchronization interface is provided directly on the SYN part of the CMCF. The software selects the synchronization origin. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--69 Front panel The front panel of the CMCF contains the following: a Reset button 16 LEDs two connectors The Reset button allows a hard reset of the board. The front panel of the CMCF Phase2 board is shown in Figure 2--21. LEDs Table 2--34 describes the LEDs on the front panel of the CMCF Phase2 board. Type Board state indicators State indicators of the external PCM link li k (A--bis) (A bi ) State indicators of the external PCM link li k (A--bis) (A bi ) Table 2--34 LED (color) Meaning (when lit) BIST (yellow) The built--in self--test is running or is stopped with a default result. ON (green) The board is operating and is providing a PCM clock. ABIS (green) The A--bis link is setup. +5 V (green) The power is on. RDY (green) The board is ready to become operational. RUN (green) The applicative software is mounted. OVEN (yellow) The OVCXO is in its preheating phase. LOCKED (vert) The SYN function is synchronized. HLDVR (red) The SYN function is operating on a local clock. CLK0 (green) Indicates the clock source. CLK1 (green) Indicates the clock source. CLK2 (green) Indicates the clock source. LNK (green) The Ethernet link is established. TX (yellow) There is a transmission on the Ethernet link. COL (red) There is a collision on the Ethernet link. RX (yellow) There is a reception on the Ethernet link. LEDs on the front panel of the CMCF Phase2 Board Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--70 Board description Nortel Networks Confidential P4 P3 J4 JTAG P2 P1 J3 BDM Screw Figure 2--21 CMCF Phase2 board PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.7.4.4 Board description 2--71 Connectors The CMCF uses eight connectors accessed from the following locations: on the front panel (two) inside the board (six) The connectors are identified in Table 2--35. Access Front panel Inside the b d board Table 2--35 Connector Type Purpose TEST Sub--D 15--pin male, high density Connector used for debugging, RACE access, BDM, test clocks, and OCVCXO. ETH RJ45 Connector used to connect the Ethernet link. J3 BDM HE10 10--pin male J4 JTAG HE10 10--pin male Connector used to program the EPLD. P1 60--pin male Connector that plugs into the CBP. P2 60--pin male Connector that plugs into the CBP. P3 60--pin male Connector that plugs into the CBP. P4 (power) 10--pin Power supply connector, which connects to the CBP. CMCF Phase2 board connectors Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--72 Board description Nortel Networks Confidential Pin connections The pin connections and their significance for the CMCF connectors are identified in Table 2--36 to Table 2--43. Pin no. Purpose Purpose Pin no. Purpose NRESETH NDS 11 NBERR FREEZE BKPT 12 IFETCH GND IPIPE0 13 CLKREFIN TX RX 14 TCLK VCO 10 PRESCONS 15 H4M Legend: NRESETH FREEZE GND TX VCO NDS BKPT IPIPE0 RX RX PRESCONS CLKREFIN TCLK H4M Table 2--36 Used for the BDM Used for BDM Ground Debug and RACE OCVCXO Voltage control Used for BDM Used for BDM Used for debug and RACE Debug (Console presence) Used for BDM Used for BDM Selected reference clock PCM transmission clock Private PCM clock Pin connections of the TEST connector Pin no. Purpose T+ Output pair + T-- Output pair -- R+ Input pair + R-- Input pair -- Table 2--37 PE/DCL/DD/0142 411--9001--142 Pin no. Used for Pin connections of the ETH connector Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Pin no. Board description Purpose Pin no. Purpose /DS FREEZE /BERR /RESETH GND DSI /BKP NC GND 10 DSO Legend: /DS /BERR GND /BKP GND FREEZE /RESETH DSI NC DSO Data strobe I/O Input Bus error output signal Electrical ground Clock output signal Electrical ground Break point acknowledge output signal Reset IO signal Serial data input signal Not connected Serial data output signal Table 2--38 Pin no. Pin connections of the J3 (BDM) connector Purpose Pin no. Purpose TCK GND TDO VCC Data in TMS 10 Ground Legend: TCK GND TDO VCC TMS TRST TDI Table 2--39 2--73 Reset Clock Ground Data out Power supply Selection Reset Data in Pin connections of the J4 (JTAG) Connector Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--74 Pin no. Row A Purpose Pin no. 12 GND 12 11 RS232TX 11 10 RS232SP1 10 Row B Purpose GND RS232SP2 Nortel Networks Confidential Pin no. Row C Purpose Pin no. Row D Purpose GND Pin no. 12 GND 12 11 P5 V 11 10 E1T1 10 GND RS232SP3 Row E Purpose 12 GND 11 RS232RX 10 RE232SP4 GPSCLK NGPSCLK GND PSYT00 NSYT00 TCLK CONFIG00 NCONFIG00 PSYT10 NSYT10 NTCLK CONFIG10 NCONFIG10 PSYT01 NSYT01 SY CONFIG01 NCONFIG01 PSYT11 NSYT11 NSY CONFIG11 NCONFIG11 PSYT02 NSYT02 H4M CONFIG02 NCONFIG02 PSYT12 NSYT12 NH4M CONFIG12 NCONFIG12 PLUG2 GND GND GND PLUG3 Table 2--40 Pin no. Row A Purpose Pin connections of the P1 connector Pin no. Row B Purpose Pin no. Row C Purpose Pin no. Row D Purpose Pin no. Row E Purpose 12 MICE0 12 NMICE0 12 SY0 12 MICR0 12 NMICR0 11 MICE1 11 NMICE1 11 NSY0 11 MICR1 11 NMICR1 10 MICE2 10 NMICE2 10 H4M0 10 MICR2 10 NMICR2 MICE3 NMICE3 NH4M0 MICR3 NMICR3 MICE4 NMICE4 SY1 MICR4 NMICR4 MICE5 NMICE5 NSY1 MICR5 NMICR5 MICE6 NMICE6 H4M1 MICR6 NMICR6 MICE7 NMICE7 NH4M1 MICR7 NMICR7 MICE8 NMICE8 SY2 MICR8 NMICR8 MICE9 NMICE9 NSY2 MICR9 NMICR9 MICE10 NMICE10 H4M2 MICR10 NMICR10 MICE11 NMICE11 NH4M2 MICR11 NMICR11 Table 2--41 PE/DCL/DD/0142 411--9001--142 Pin connections of the P2 connector Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Pin no. Row A Purpose Pin no. 12 PLUG0 12 11 SCOUT 10 Board description Row B Purpose GND Pin no. Row C Purpose Pin no. 12 GND 12 11 11 SCIN NSCOUT 10 10 GND GND RXD TXD Row D Purpose GND Pin no. 2--75 Row E Purpose 12 PLUG1 11 11 CMCFOUT NSCIN 10 10 NCMCFOU CMCFIN GND GND NRXD NCMCFIN RXCLK NRXCLK NTXD TXCLK NTXCLK GSMOUT NGSMOUT GSMIN NGSMIN GSMSYIN NGSMSYIN GND GSMSYOU NGSMSYO UT TWI0 TEI1 AOUB TEI2 TEI3 GND GND GND GND GND Table 2--42 Pin no. Row A Purpose Pin connections of the P3 connector Pin no. Row B Purpose Pin no. Row C Purpose Pin no. Row D Purpose Pin no. Row E Purpose GND 0V --48 V GND 0V --48 V Legend: GND Common logical ground Table 2--43 2.7.4.5 Pin connections of the P4 (Power) connector Electrical characteristics The CMCF is powered by a nominal dc - 48 V power supply. The acceptable range is from 36 V to 72 V. The maximum power consumption of the board is 0.7 A. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--76 Nortel Networks Confidential 2.7.5 BCFICO board 2.7.5.1 Functional description The BCFICO board allows the reception and transmission of external signals towards the CMCF and CPCMI boards. The coding of TEI signals can be set using the switched pull--down resistor inside the BCFICO board. 2.7.5.2 Physical description The BCFICO contains the following: six connectors on the front panel four connectors inside the board one switch register inside the board The BCFICO board is shown in Figure 2--22. The connectors are identified in Table 2--44 and the register is described in the Section “Switch register”. Access Connector Front panel PCM0/1 Sub--D, 25--pin female Connectors used for Private PCM links 0 and 1. Connected to J8 on the inside of the board. PCM2/3 Sub--D, 25--pin female Connectors used for Private PCM links 2 and 3. Connected to J8 on the inside of the board PCM4/5 Sub--D, 25--pin female Connectors used for Private PCM links 4 and 5. Connected to J5 on the inside of the board ABIS Sub--D 25--pin male Connected to J5 on the inside of the board. PWR Sub--D, 3--pin male +48 V dc power supply connector. Connected to the J3 connector on the inside of the board. RS232 Sub--D, 9--pin male Connected to the J1 connector on the inside of the board. J2 10--pin female Power supply connector, which is plugged into the CBP. J4 60--pin female Connecter that is plugged into the CBP. J6 60--pin female Connecter that is plugged into the CBP. J7 60--pin female Connecter that is plugged into the CBP. Inside the board Table 2--44 PE/DCL/DD/0142 411--9001--142 Type Purpose BCFICO board connectors Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--77 J7 J6 J4 S1 J2 TEI0 TEI1 TEI2 TEI3 Figure 2--22 ON BCFICO board Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--78 Board description 2.7.5.3 Nortel Networks Confidential Pin connections The pin connections of the BCFICO connectors are identified in Table 2--45 to Table 2--54. Pin no. Purpose Purpose SEL4 14 NSEL4 SEL5 15 NSEL5 SEL6 16 NSEL6 SEL7 17 NSEL7 GND 18 GND GND 19 GND MICE0 20 NMICE0 MICE1 21 NMICE1 MICR0 22 NMICR0 10 MICR1 23 NMICR1 11 PH40 24 NH40 12 PSY0 25 NSY0 13 GND Table 2--45 PE/DCL/DD/0142 411--9001--142 Pin no. PCM0/1 pin connections Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Pin no. Board description Purpose Pin no. Purpose SEL14 14 NSEL14 SEL15 15 NSEL15 SEL16 16 NSEL16 SEL17 17 NSEL17 GND 18 GND GND 19 GND MICE2 20 NMICE2 MICE3 21 NMICE3 MICR2 22 NMICR2 10 MICR3 23 NMICR3 11 PH41 24 NH41 12 PSY1 25 NSY1 13 GND Table 2--46 Pin no. PCM2/3 pin connections Purpose Pin no. Purpose SEL24 14 NSEL24 SEL25 15 NSEL25 SEL26 16 NSEL26 SEL27 17 NSEL27 GND 18 GND GND 19 GND MICE4 20 NMICE4 MICE5 21 NMICE5 MICR4 22 NMICR4 10 MICR5 23 NMICR5 11 PH42 24 NH42 12 PSY2 25 NSY2 13 GND Table 2--47 2--79 PCM4/5 pin connections Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--80 Board description Pin no. Nortel Networks Confidential Purpose Pin no. Purpose EHDB0 14 EHDB3 NEHDB0 15 NEHDB3 RHDB0 16 RHDB3 NRHDB0 17 NRHDB3 EHDB1 18 EHDB4 NEHDB1 19 NEHDB4 RHDB1 20 RHDB4 NRHDB1 21 NRHDB4 EHDB2 22 EHDB5 10 NEHDB2 23 NEHDB5 11 RHDB2 24 RHDB5 12 NRHDB2 25 NRHDB5 13 Table 2--48 Pin no. Purpose (--)48 V GND (+)48 V Table 2--49 PE/DCL/DD/0142 411--9001--142 ABIS pin connections PWR pin connections Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description Pin no. 2--81 Purpose RS232SP2 RS232RX RS232TX RS232SP1 GND RS232SP3 RS232SP4 GPSCLK NGPSCLK Table 2--50 RS232 pin connections (--)48 V (+)48 V GND (--)48 V (+)48 V GND (--)48 V (+)48 V GND (--)48 V (+)48 V GND (--)48 V (+)48 V GND (--)48 V (+)48 V GND Table 2--51 J2 pin connections Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--82 Board description Nortel Networks Confidential 12 11 NRHDB1 RHDB1 NRHDB0 RHDB0 NEHDB1 EHDB1 NEHDB0 EHDB0 NRHDB3 RHDB3 NRHDB2 RHDB2 NEHDB3 EHDB3 NEHDB2 EHDB2 NRHDB5 RHDB5 NRHDB4 RHDB4 NEHDB5 EHDB5 NEHDB4 EHDB4 10 Table 2--52 J4 pin connections 12 GND GND +5 V GND GND 11 RS232RX RS232SP3 GND RS232SP2 RS232TX 10 RS232SP4 NGPSCLK GND GPSCLK RS232SP1 TEI3 TEI2 TEI1 TEI0 TEI20 TEI00 TEI01 NAOUB TEI11 GND GND GND NHLOC HLOC NCONFIG00 CONFIG00 TCLK NSYT00 PSYT00 NCONFIG10 CONFIG10 NTCLK NSYT10 PSYT10 NCONFIG01 CONFIG01 PSY NSYT01 PSYT01 NCONFIG11 CONFIG11 NSY NSYT11 PSYT11 NCONFIG02 CONFIG02 PH4 NSYT02 PSYT02 NCONFIG12 CONFIG12 NH4 NSYT12 PSYT12 Table 2--53 PE/DCL/DD/0142 411--9001--142 J6 pin connections Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--83 12 NMICR0 MICR0 PSY0 NMICE0 MICE0 11 NMICR1 MICR1 NSY0 NMICE1 MICE1 10 NMICR2 MICR2 PH40 NMICE2 MICE2 NMICR3 MICR3 NH40 NMICE3 MICE3 NMICR4 MICR4 PSY1 NMICE4 MICE4 NMICR5 MICR5 NSY1 NMICE5 MICE5 PH41 NMICE6 MICE6 NH41 NMICE7 MICE7 PSY2 NMICE8 MICE8 NSY2 NMICE9 MICE9 PH42 NMICE10 MICE10 NH42 NMICE11 MICE11 Table 2--54 J7 pin connections Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--84 Board description 2.7.5.4 Nortel Networks Confidential Switch resistor The TEI signals can be configured by setting the switch pull--down register inside inside the BCFICO in the positions indicated in Table 2--55. Signal name Connector pin termination Logical code TEI00 TEI01 to CPCMI0 to CPCMI0 grounded on CBP grounded on CBP TEI10 TEI11 to CPCMI1 to CPCMI1 left unconnected grounded on CBP TEI20 TEI21 to CPCMI2 to CPCMI2 grounded on CBP left unconnected TEI0 TEI1 TEI2 TEI3 to 2 CMCF to 2 CMCF to 2 CMCF to 2 CMCF pull--down serial mounted with a switch on BCFICO pull--down serial mounted with a switch on BCFICO pull--down serial mounted with a switch on BCFICO pull--down serial mounted with a switch on BCFICO 0 or 1 0 or 1 0 or 1 0 or 1 AOUB NAOUB to CMCF_A to CMCF_B left unconnected. grounded on CBP Table 2--55 PE/DCL/DD/0142 411--9001--142 Link TEI Resistor coding on the switch register Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.7.5.5 Board description 2--85 TEI configuration WIth the TEI0 to TEI3 (S1) switches of the CBCICO board (voir Figure 2--22) you can update the TEI configuration as described in the following table : TEI number TEI0 switch TEI1 switch TEI2 switch TEI3 switch 10 11 12 13 14 15 Key: 0 : Indicates that the switch is in the “ON“ position 1 : Indicates that the switch is in the “OFF“ position Note: The gray line indicates the factory setting. Table 2--56 TEI configuration Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--86 Board description 2.7.5.6 Nortel Networks Confidential Interfaces specifications The 48 V power supply is connected to the MAINICO board via power terminals. screw: M1 Mechanical ground connected to the DRXs PUPS output ground. M2 - 48 V supply M3 0 V supply each 48 V DRX Power connector is protected by a 2A fuse. 2.7.6 CBCF Back Panel (CBP) 2.7.6.1 Functional description The CBCF Back Panel (CBP) provides the interconnection between the following CBCF Module boards: two CMCFs three CPCMIs one BCFICO 2.7.6.2 Physical description The CBP contains the following six connectors: two CMCF signal connectors • CMCF_A • CMCF_B three CPCMI signal connectors • CPCMI_0 • CPCMI_1 • CPCMI_2 one BCFICO connector The CBP board and its connectors are shown in Figure 2--23. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2--87 CMCF_B connectors ACE AL2 ACE AL1 CMCF_A connectors Board description SIGN6A SIGN6B ABCDE BCFICO connectors SIGN6C SIGN2A SIGN2B SIGN2C SIGN1A SIGN1C SIGN1B ABCDE ABCDE ABCDE CPCMI_0 connectors CPCMI_2 connectors ABCDE SIGN5 ACE AL6 ACE AL5 AL4 ABCDE SIGN4 ACE AL3 ABCDE SIGN3 ACE CPCMI_1 connectors Figure 2--23 CBP board Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--88 Board description 2.7.6.3 Nortel Networks Confidential Pin connections The pin connections of the CBP connectors are identified in Table 2--57 to Table 2--69. GND GND GND 12 PLUGA0 PLUGA0 11 CMCFAB SCBA SCAB 10 NCMCFAB NSCBA NSCAB GND GND CMCFBA GND GND NCLKBA CLKBA NCMCFBA NDATBA DATBA NCLKAB CLKAB NDATAB DATAB NGSMAB GSMAB NGSMBA GSMBA NGSMSYAB GSMSYAB GND NGSMSYBA GSMSYBA TEI3 TEI2 AOUB TEI1 TEI0 GND GND GND GND GND Table 2--57 PE/DCL/DD/0142 411--9001--142 CMCF_A (Sign1A) pin connections Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--89 12 NMICR0 MICR0 PSY0 NMICE0 MICE0 11 NMICR1 MICR1 NSY0 NMICE1 MICE1 10 NMICR2 MICR2 PH40 NMICE2 MICE2 NMICR3 MICR3 NH40 NMICE3 MICE3 NMICR4 MICR4 PSY1 NMICE4 MICE4 NMICR5 MICR5 NSY1 NMICE5 MICE5 NMICR6 MICR6 PH41 NMICE6 MICE6 NMICR7 MICR7 NH41 NMICE7 MICE7 NMICR8 MICR8 PSY2 NMICE8 MICE8 NMICR9 MICR9 NSY2 NMICE9 MICE9 NMICR10 MICR10 PH42 NMICE10 MICE10 NMICR11 MICR11 NH42 NMICE11 MICE11 Table 2--58 CMCF_A (Sign1B) pin connections 12 GND GND 11 RS232RX 10 RS232SP4 GND GND +5 V RS232SP3 E1T1 GND RS232TX RS232SP2 RS232SP1 HLOC NHLOC NGPSCLK GPSCLK NCONFIG00 CONFIG00 TCLK NSYT00 PSYT00 NCONFIG10 CONFIG10 NTCLK NSYT10 PSYT10 NCONFIG01 CONFIG01 PSY NSYT01 PSYT01 NCONFIG11 CONFIG11 NSY NSYT11 PSYT11 NCONFIG02 CONFIG02 PH4 NSYT02 PSYT02 NCONFIG12 CONFIG12 NH4 NSYT12 PSYT12 PLUGA1 GND GND GND PLUGA1 Table 2--59 CMCF_A (Sign1C) pin connections Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--90 Board description Nortel Networks Confidential GND GND GND 12 PLUGB0 PLUGB0 11 CMCFBA SCAB SCBA 10 NCMCFBA NSCAB NSCBA GND GND CMCFAB GND GND NCLKAB CLKAB NCMCFAB NDATAB DATAB NCLKBA CLKBA NDATBA DATBA NGSMBA GSMBA NGSMAB GSMAB NGSMSYBA GSMSYBA GND NGSMSYAB GSMSYAB TEI3 TEI2 NAOUB TEI1 TEI0 GND GND GND GND GND Table 2--60 CMCF_B (Sign2A) pin connections 12 NMICR0 MICR0 PSY0 NMICE0 MICE0 11 NMICR1 MICR1 NSY0 NMICE1 MICE1 10 NMICR2 MICR2 PH40 NMICE2 MICE2 NMICR3 MICR3 NH40 NMICE3 MICE3 NMICR4 MICR4 PSY1 NMICE4 MICE4 NMICR5 MICR5 NSY1 NMICE5 MICE5 NMICR6 MICR6 PH41 NMICE6 MICE6 NMICR7 MICR7 NH41 NMICE7 MICE7 NMICR8 MICR8 PSY2 NMICE8 MICE8 NMICR9 MICR9 NSY2 NMICE9 MICE9 NMICR10 MICR10 PH42 NMICE10 MICE10 NMICR11 MICR11 NH42 NMICE11 MICE11 Table 2--61 PE/DCL/DD/0142 411--9001--142 CMCF_B (Sign2B) pin connections Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 12 GND GND 11 RS232RX 10 RS232SP4 GND GND GND +5 V RS232SP3 2--91 RS232TX E1T1 RS232SP2 RS232SP1 HLOC NHLOC NGPSCLK GPSCLK NCONFIG00 CONFIG00 TCLK NSYT00 PSYT00 NCONFIG10 CONFIG10 NTCLK NSYT10 PSYT10 NCONFIG01 CONFIG01 PSY NSYT01 PSYT01 NCONFIG11 CONFIG11 NSY NSYT11 PSYT11 NCONFIG02 CONFIG02 PH4 NSYT02 PSYT02 NCONFIG12 CONFIG12 NH4 NSYT12 PSYT12 PLUGB1 GND GND GND PLUGB1 Table 2--62 CMCF_B (Sign2C) pin connections NEHDB1 EHDB1 NEHDB0 EHDB0 NRHDB1 RHDB1 NRHDB0 RHDB0 GND GND GND GND GND TEI01 TEI00 E1T1 NCONFIG10 NCONFIG00 CONFIG10 CONFIG00 NHLOC NSY HLOC PSY NTCLK NSYT10 NSYT00 TCLK PSYT10 PSYT00 10 11 NMICR7 NMICE7 NMICR6 NMICE6 NH4 12 MICR7 MICE7 MICR6 MICE6 PH4 Table 2--63 CPCMI_0 (Sign3) pin connections Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--92 Board description Nortel Networks Confidential NEHDB3 EHDB3 NEHDB2 EHDB2 NRHDB3 RHDB3 NRHDB2 RHDB2 GND GND GND GND GND TEI11 TEI10 E1T1 NCONFIG11 NCONFIG01 CONFIG11 CONFIG01 NHLOC NSY HLOC PSY NTCLK NSYT11 NSYT01 TCLK PSYT11 PSYT01 10 11 NMICR9 NMICE9 NMICR8 NMICE8 NH4 12 MICR9 MICE9 MICR8 MICE8 PH4 Table 2--64 CPCMI_1 (Sign 4) pin connections NEHDB5 EHDB5 NEHDB4 EHDB4 NRHDB5 RHDB5 NRHDB4 RHDB4 GND GND GND GND GND TEI21 TEI20 E1T1 NCONFIG12 NCONFIG02 CONFIG12 CONFIG02 NHLOC NSY HLOC PSY NTCLK NSYT12 NSYT02 TCLK PSYT12 PSYT02 10 11 NMICR11 NMICE11 NMICR10 NMICE10 NH4 12 MICR11 MICE11 MICR10 MICE10 PH4 Table 2--65 PE/DCL/DD/0142 411--9001--142 CPCMI_2 (Sign 5) pin connections Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--93 12 NMICR0 MICR0 PSY0 NMICE0 MICE0 11 NMICR1 MICR1 NSY0 NMICE1 MICE1 10 NMICR2 MICR2 PH40 NMICE2 MICE2 NMICR3 MICR3 NH40 NMICE3 MICE3 NMICR4 MICR4 PSY1 NMICE4 MICE4 NMICR5 MICR5 NSY1 NMICE5 MICE5 PH41 NMICE6 MICE6 NH41 NMICE7 MICE7 PSY2 NMICE8 MICE8 NSY2 NMICE9 MICE9 PH42 NMICE10 MICE10 NH42 NMICE11 MICE11 Table 2--66 BCFICO (Sign6A) pin connections 12 GND GND +5 V GND GND 11 RS232RX RS232SP3 GND RS232SP2 RS232TX 10 RS232SP4 NGPSCLK GND GPSCLK RS232SP1 TEI3 TEI2 TEI1 TEI0 TEI20 TEI00 TEI01 NAOUB TEI11 GND GND GND NHLOC HLOC NCONFIG00 CONFIG00 TCLK NSYT00 PSYT00 NCONFIG10 CONFIG10 NTCLK NSYT10 PSYT10 NCONFIG01 CONFIG01 PSY NSYT01 PSYT01 NCONFIG11 CONFIG11 NSY NSYT11 PSYT11 NCONFIG02 CONFIG02 PH4 NSYT02 PSYT02 NCONFIG12 CONFIG12 NH4 NSYT12 PSYT12 Table 2--67 BCFICO (Sign6B) pin connections Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--94 Board description Nortel Networks Confidential 12 11 NRHDB1 RHDB1 NRHDB0 RHDB0 NEHDB1 EHDB1 NEHDB0 EHDB0 NRHDB3 RHDB3 NRHDB2 RHDB2 NEHDB3 EHDB3 NEHDB2 EHDB2 NRHDB5 RHDB5 NRHDB4 RHDB4 NEHDB5 EHDB5 NEHDB4 EHDB4 10 Table 2--68 BCFICO (Sign6C) pin connections --48 V +48 V GND --48 V +48 V GND --48 V +48 V GND --48 V +48 V GND --48 V +48 V GND --48 V +48 V GND Table 2--69 PE/DCL/DD/0142 411--9001--142 AL1, AL2, AL3, AL4, AL5, AL6 pin connections (Power voltage connectors) Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.8 Board description 2--95 DRX, e--DRX, or DRX--ND3 module The module processes reception and transmission signals. It has a receive sensitivity of - 110 dBm or - 108 dBm. 2.8.1 DRX front panel The DRX front panel has the following elements (see Figure 2--24): a 26--pin power supply connector (PWR) a 66--pin connector for the private PCM (FH--PCM) a 50--pin test connector (TEST) a transmission signal output (TX OUT) a diversity reception signal input (RXD IN) a main reception signal input (RXM IN) 12 LEDs: • +5 V: Power supply • RES1: (Reserved) • ALA: Alarm • DRX: DRX general status • AMNU: AMNU status • SPU: SPU or RX status • BDT: BDT status • TX: TX status • LI: Ethernet connection OK • CL: Ethernet collision • TX: Ethernet transmission • RX: Ethernet reception The LEDs for the AMNU, SPU, BDT, and TX can be in flashing mode while the corresponding software is being downloaded. For further information about the status of LEDs, refer to the document “S12000 BTS Maintenance Manual - Procedures”. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--96 Board description Nortel Networks Confidential PWR TX OUT FH--PCM RXD IN ALA DRX SPU TX CL RX +5V RES1 AMNU BDT LI TX RESET TEST Screws RXM IN Legend : Figure 2--24 Red LED Green LED Yellow LED DRX module PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.8.2 Board description 2--97 e-- DRX front panel The e--DRX front panel has the following elements (see Figure 2--25): a 26--pin power supply connector (PWR) a 66--pin connector for the private PCM (FH--PCM) a 50--pin test connector (TEST) a transmission signal output (TX) a diversity reception signal input (RXD IN) a main reception signal input (RXM IN) 8 LEDs: • FWR: TBD • SPU: SPU status • e--DRX: e--DRX general status • ALA: Alarm • BIST: Built--In Self Status • LI: Ethernet connection OK • TX: Ethernet transmission • RX: Ethernet reception 1 button: • RESET: restart the module For further information about the status of LEDs, refer to NTP < 144 >. For more details about DRX and e--DRX architectures, please see chapters 3.3 and 3.4. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Board description 2--98 Nortel Networks Confidential PWR TX OUT FWR FH--PCM RXD IN SPU DRX ALA BIST LI TX RX RESET TEST Screws RXM IN Legend : Figure 2--25 PE/DCL/DD/0142 411--9001--142 Red LED Green LED Yellow LED e--DRX module Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.9 Board description 2--99 RX--splitter The RX--splitter amplifies a reception signal and splits it into several signals that it sends to the receivers. 2.9.1 Principle The RX--splitter exists in two types: 1x4 and 2x2. It consists of the following elements according to the type : Type 1x4: a two--stage, four--channel splitter (see Figure 2--26), which splits the signal from the LNA--splitter into four identical signals. Type 2x2: a two--stage, two two--channels splitter (see Figure 2--27), which splits each of two signals from the LNA--splitter into two identical signals. Four Low--Noise Amplifiers (LNA), which amplify one channel each. Four resistive attenuators, which adjust the gain to the required value on each LNA channel. A remote amplifier, which controls the power of the incoming signal. The DRX supervises the amplifier and sends the information to the BSC. Each channel of the RX--splitter is connected to a different receiver. The receiver supplies the LNA of the channel to which it is connected by means of the RF cable. The four channels are therefore supplied independently of one another. Channels which are not connected to any receiver are not supplied with power, and so need not be adapted by a 50 Ω termination. Nominal gain on the four outputs is + 9.2 dBm (GSM 850), + 8 dBm (GSM 1900). 2.9.2 Consumption The RX--splitter is supplied with +12 V dc + 5% or +5.5 V dc + 5% (GSM 1900). Its maximum consumption is 40 mA (GSM 1900) 50 mA for GSM 850. The receivers to which it is connected trip an alarm if this limit is exceeded. 2.9.3 RX-- splitter front panel The front panel of the RX--splitter has the following elements (see Figure 2--28): Four RX connectors each supply a signal to a receiver which supplies them with voltage. An IN connector is used by the RX--splitter to receive the reception signal. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--100 Board description Nortel Networks Confidential RX-- splitter Power supply regulation LNA RX0 Power supply regulation LNA RF combiner RX1 Power supply regulation LNA RX2 Power supply regulation LNA Figure 2--26 RX3 RX--splitter diagram type 1x4 PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--101 RX-- splitter 2X2 Power supply regulation LNA RF combiner RX0--0 Power supply regulation LNA RX0--1 Power supply regulation LNA Power supply regulation RF combiner LNA Figure 2--27 RX1--0 RX1--1 RX--splitter diagram type 2x2 Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--102 Board description RX0 Figure 2--28 Nortel Networks Confidential RX1 IN RX2 RX3 RX--splitter type 1x4 PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential RX0--0 Figure 2--29 Board description RX0--1 IN0 IN1 RX1--1 2--103 RX1--1 Rx--splitter type 2x2 Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--104 Board description Nortel Networks Confidential 2.10 Power system 2.10.1 Power system description This system is made up of: a Power Controller Unit (PCU) and a set of up to seven Rectifier Units (SRU), each with 600 W output capability (one is for redundancy) or a GSM Integrated power System (GIPS) a set of batteries (Internal or external) This system and the batteries constitute the dc energy distribution system used to supply the various modules of the cabinet. The Power System delivers a 54.6 V dc voltage which it generates from the Mains voltage for a 25°C temperature (77°F) of the probe under the batteries. 2.10.2 PCU description The PCU has the four following separate outputs which supply the modules of the cabinet: output 1 (--) to the power amplifiers and F--type converters output 2 (--) to the climatic system fans output 3 (--) to the DRX units output 4 (--) to the CBCF, the user optional accessory, and the RECAL board The PCU also provides a common 0 V output. PCU protections The PCU outputs are protected by these breakers: output current 1: breaker L1 (80 A) output current 2: breaker L2 (10 A, time delay) output current 3: breaker L3 (15 A) output current 4: breaker L4 (15 A) When circuit--breakers L1 or L3 are tripped, an alarm signal is generated. A manual power supply cut--off is provided on all four outputs by circuit--breakers on the front panel of the PCU. Alarms Several alarms are provided in the PCU, in order to detect the following situations: ac fault: when the ac supply is interrupted or is outside the voltage range (single alarm for all rectifiers) dc fault: when the dc supply is interrupted or is outside the 40 V to 58 V (± 0.5 V) range (single alarm for all rectifiers) or if a temperature sensor is not properly linked to the PCU or if a local bias fails. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--105 excessive temperature: The rectifier is switched off when the maximum operating temperature is exceeded, and then starts again when the temperature has dropped back to normal (single alarm for all rectifiers). batteries on discharge (except for S8006 BTS) PCU protection device Load1 threshold Alarm connector This is a male 15--point SubD connector: ac fault alarm dc fault alarm NC Alarm common Load1 threshold alarm NC Over temperature alarm PCU protection alarm Battery on discharge 10 NC 11 NC 12 NC 13 NC 14 NC 15 NC Note: Only alarms sent back to the RECAL board are mentionned. Table 2--70 Alarm connector Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--106 Board description Nortel Networks Confidential Monitoring connector This is a female 15--point SubD connector: Alarm common Alarm common NC NC NC NC NC CEATS 1a CEATS 1b 10 NC 11 NC 12 Mechanical ground 13 Mechanical ground 14 NC 15 NC Note: NC = not connected Table 2--71 2.10.2.1 Monitoring connector PCU Front panel The front panel includes the following (see Figure 2--30): four manual circuit breakers (PA, FAN, DRX and BCF) test points: • two points for type1 (PROBE1 and PROBE2) • one point for type2 (PROBE1 only) a terminal for connection with the battery cables six lights emitting LEDs • The green LED (ON) indicates that the PCU is operating normally. • The red LED (AL) indicates that there is a fault in the temperature sensor circuit of the batteries or in the PCU. • Four other green LEDs indicates that the four outputs of the PCU are operational. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.10.2.2 Board description 2--107 PCU Top panel The top panel includes alarm and monitoring connectors. The alarm connector (J4) is a male type, while the control connector (J5) is a female type. LEDs The LEDs give information on the status of the PCU rectifier: The green LED (ON) indicates that the PCU is operating normally. The red LED (AL) indicates that there is a fault in the temperature sensor circuit of the batteries or in the PCU local bias system. Four other green LEDs indicates that the four outputs of the PCU are operational. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--108 Board description Nortel Networks Confidential J5 J4 Figure 2--30 Power supply rack (seven--rectifier type) PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.10.3 Board description 2--109 SRU description Input voltage Nominal 230 V ac Range: 176 V ac to 264 V ac Output characteristics Nominal output voltage is 54.6 V ± 0.2 V. The output voltage range is 40 V to 58 V ± 0.5 V. Protection against power surges is 59.5 V (+0 V, - 1 V). Nominal current is 11A minimum for Vout = 54.6 V. The output power is constant (600W) for output voltages between 40 V and 58 V. Alarms Several alarm signals can be generated, in the following cases: overtemperature missing module ac input voltage interrupted or not within 176 V--264 V thresholds dc output voltage not within 40 V--58 V thresholds (± 0.5 V) An ac alarm leads to a dc alarm, but a dc alarm does not necessarily lead to an ac alarm. Floating voltage control The floating voltage leaving the rectifiers is automatically adjusted in inverse ratio to battery temperature. This floating voltage is necessary for an optimum battery service life. 2.10.3.1 SRU Front panel The front panel includes the following (see Figure 2--30): a manual circuit switch two voltage test points two LEDs Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--110 Board description Nortel Networks Confidential The LEDs give information on the status of the rectifier: The green LED (ON) is on to indicate that the rectifier is in normal operating mode, that is, the ac supply is within the appropriate voltage range and a dc voltage is supplied at the rectifier output. The red LED (AL) is on to indicate that the ac supply is within the appropriate voltage range but rectifier temperature is too high. 2.10.4 GIPS description This system is made up of a Distribution and Control Unit (DCU), a Set of Rectifier Units, rectifiers of 680 W each (one is for redundancy), and a AC Distribution Unit (ADU). This GIPS and the batteries constitute the dc energy distribution system used to supply the various modules of the cabinet. The Power System delivers a 54.6 V dc voltage which it generates from the Mains voltage for a 25°C temperature (77°F) of the probe under the batteries. 2.10.4.1 DCU description The DCU has the four following separate outputs which supply the modules of the cabinet: output PA (--) to the power amplifiers output DACS (--) to the climatic system fans output DRX (--) to the DRX, eDRX, or DRX--ND3 units output BCF (--) to the BCF (CBCF/RECAL /USER) and F--type converters The DCU also provides a common 0 V output. DCU protections The DCU outputs are protected by the following breakers: output current PA: breaker CB1 (80 A) output current DACS: breaker CB2 (15 A) output current DRX: breaker CB3 (15 A) output current BCF: breaker CB4 (15 A) When circuit--breakers CB1 or CB3 are tripped, an alarm signal is generated. A manual power supply cut--off is provided on all four outputs by circuit--breakers on the front panel of the DCU. Alarms Several alarms are provided to the RECAL board by the power system: AC fault: when 1 out of 3 phases is interrupted or is outside the 172V to 176V range (single alarm for all seven rectifiers) DC fault: when the dc supply is interrupted (single alarm for all seven rectifiers) or if a temperature sensor is not properly linked to the DCU or if a local bias fails or one slot is empty. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Board description 2--111 DCU protection device Load1 threshold Main breaker fault Lightning arrestor fault Alarm connector This is a male 15--point SubD connector placed on the top of the DCU. Alarm AC OR Alarm DC OR Alarm load1 threshold Common alarms Remote Control a Remote Control b CEATS1 CEATS2 NC 10 Mains breaker 11 PCU Protective Devices 12 NC 13 Lightning Arrestor 14 Common Alarm 15 NC Note: NC = not connected Table 2--72 Alarm connector Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--112 Board description 2.10.4.2 Nortel Networks Confidential DCU front panel The front panel includes the following: Four manual circuit breakers (PA, DRX, DACS, and BCF) a battery temperature probe connector four green LEDs • The four green LEDs ON indicate that the DCU is operating normally. • A green LED OFF indicates that the corresponding module is not powered. A battery breaker is located above the GIPS. 2.10.4.3 DCU top panel The top panel includes an alarm interface connector. The alarm connector is male 15--point SubD connector. 2.10.4.4 Rectifier description Input voltage Nominal 230 V ac Range: 176 V ac to 264 V ac Output characteristics Nominal output voltage is 54.6 V ± 0.2 %. The output voltage range is 40 V to 58.3 V. Protection against power surges is 59.7 V. Nominal current is 12.45 A minimum for Vout = 54.6 V. The output power is constant (680W) for output voltages between 40 V and 58 V. Alarms Several alarm signals are generated, in the following cases: overtemperature ac input voltage interrupted or not within 176 V--264 V thresholds dc output voltage not within 40 V to 58.3 V thresholds An ac alarm leads to a dc alarm, but a dc alarm does not necessarily lead to an ac alarm. Floating voltage control The floating voltage leaving the rectifiers is automatically adjusted in inverse ratio to battery temperature. This floating voltage is necessary for an optimum battery service life. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 2.10.4.5 Board description 2--113 Rectifier front panel The front panel includes the following: a manual circuit switch a green LED The LED gives information on the status of the rectifier. The green LED is on to indicate that the rectifier is in normal operating mode, that is a dc voltage is supplied at the rectifier output. 2.10.4.6 ADU description The ADU provides: the AC input cable surge protection a system level circuit breaker for rectifiers power on/off and overload protection a circuit breaker for DACS power on/off and overload protection EMI filtering a connector for the DACS 2.10.4.7 ADU front panel The front panel includes the following: three mains circuit breakers: • rectifiers 1, 3, 5, 7 Load Circuit Breaker • rectiifers 2, 4, 6 Load Circuit Breaker • DACS Load Circuit Breaker DACS cable main cable Earth connection point for dielectric test Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--114 Board description Figure 2--31 PE/DCL/DD/0142 411--9001--142 Nortel Networks Confidential GIPS Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Figure 2--32 Board description 2--115 DCU module Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 2--116 Board description Figure 2--33 PE/DCL/DD/0142 411--9001--142 Nortel Networks Confidential ADU module Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--1 ARCHITECTURE 3.1 Physical architecture 3.1.1 Introduction This chapter provides an overview of the BTS physical architecture. BTS components are described in detail in Chapters 1 to 5. The EDGE link quality measurement (LQM) of the uplink is performed at the BTS. E--DRX and E--PA are necessary on the BTS to utilize the EDGE features. BSC12000 is required to utilize the EDGE features. 3.1.2 Subsystems The BTS contains three main subsystems (see Figure 3--1): one CBCF Module one TRX subsystem one coupling system The content of each subsystem is listed in Table 3--1. 3.1.3 Internal buses The following buses, which connect BTS components, are described in this section: frequency hopping (FH) bus private PCM Figure 3--1 shows the buses used with the CBCF Module. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--2 Architecture Nortel Networks Confidential Contents* Subsystem Compact BCF (CBCF) Module • Compact PCM Interface board (CPCMI) • Compact Main Common Function board (CMCF) • Remote Control Alarm (RECAL) board • BCF Interconnection board (BCFICO) • CBCF Back Panel (CBP) TRX • Driver and Receiver unit (DRX) • Power Amplifier (PA) Coupling system • RF Combiner Module(s) of the following types: -- Duplexer (D) -- Hybrid Two--way (H2D) -- Hybrid Four--way (H4D) -- Tx Filter(s) (TxF) • Rx Splitter(s) • LNA Splitter The number of boards or modules are not indicated and depend on the configuration of the site. Table 3--1 3.1.3.1 BTS subsystems FH bus The FH bus links together all logical DRXs. The FH bus and the transmitters connected to it ensure the function of frequency hopping and the filling of the BCCH frequency. The FH bus is a V11 (series) bus. It is one-way and carries the signals according to the RS485 standard. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--3 FH bus DRX Logic part DRX Radio part Transmitter coupler subsystem PA Reception coupler subsystem DRX TRX Private PCM Private PCMs CPCMI CMCF CBCF (*) Private PCMs External PCMs RECAL Note: (*) The two interconnection boards of the CBCF module (BCFICO and CBP) are not shown. Figure 3--1 Subsystem architecture with CBCF Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--4 Architecture Nortel Networks Confidential Each message is transmitted in synchronization with the 4Fbit clock and includes the following: the system time in six bytes (flag included) the address of the DRX that transmits the information in one byte the code of the send frequency on 10 bits the send power commands in one byte the NRZ message of the send data in 19 bytes Up to 16 transmitters can be connected to this bus. For multi--cell sites, all the cells can be connected onto a single FH bus. 3.1.3.2 Private PCM Up to six private PCMs transport data between the DRXs and the CBCF Module. Each private PCM supports up to four es. Each private PCM has a 64 kbit/s time slot (TS) distributed to all DRXs and carries the GSM TIME signal (TS31). Each private PCM allocates the following time slots (TS) for each DRX: One TS (64 kbit/s logical channels) of transparent data for signaling and 4 TSs for traffic A group of five TSs, three of which are used, is allocated to each DRX, as follows: Signaling Traffic + Joker Traffic + Joker Traffic + Joker Traffic + Joker A 4.096 MHz clock, slaved to the 4Fbit clock of the synchronization board, is used for bit synchronization of the private PCM. The refresh period must be a multiple of an occurrence between the GSM time base (577 µs) and the PCM time base (125 µs). The selected refresh period is 60 ms. One must make the difference between CMCF/CPCMI which remain with a single rate (4.096 MHz clock and 2.048 Mbps datarate) and CMCF/DRX/RECAL which can have a double rate feature on some TSs(4.096 Mbps double datarate). The TSs remaining with a single rate are the signaling TSs for the DRX/eDRX/RECAL and the traffic TSs for the DRX. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 3.2 Architecture 3--5 CBCF functional architecture The CBCF performs the following functions: switching, synchronization, and concentration control of the alarm management unit PCM Interface The CMCF Phase2 board performs the concentration, synchronization, and switching functions. The CMCF also controls the alarm management unit (the RECAL board), which is located outside the CBCF Module. The CMCF Phase2 board allows operation in duplex mode and in simplex mode. The CPCMI board is the interface between the external PCM links (A--bis) and the private PCMs in the CBCF. CBCF modes The CBCF can be used in simplex mode with only one CMCF board in slot 0 or 1 running in active mode. Simplex/Duplex mode is managed by a micro switch on the CMCF Phase2 board. From duplex to simplex, the transaction is never automatic and always follows a configuration. From simplex to duplex mode, there is no automatic transition when the active board detects the connection with the passive one. 3.2.1 Switching, synchronization, and concentration The CMCF Phase2 board is duplicated in the CBCF Module to provide redundancy (see Figure 3--2). One CMCF central processor manages the switching matrix and the synchronization. The main processor and slave processor share the concentration and routing tasks as described below. 3.2.1.1 Switching The two switching matrices in the CMCF receive and distribute the traffic of PCMs as follows: up to six PCMs communicate with the CPCMI boards (external PCM) up to six PCMs communicate with the DRXs (external PCM) two PCMs communicate with the processing units (internal PCM) one PCM communicates GSM time (internal PCM) one PCM for tests (internal PCM) Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--6 Architecture Nortel Networks Confidential The 6 PCMs distributed towards the DRX can have a double rate. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--7 MASTER CMCF SIX CLOCKS 1/256 1/193 +5V SYN FLL H8M SY H4M E1/T1 SLAVE CMCF SIX CLOCKS 1/256 1/193 +5V SYN PLL H8M SY H4M E1 PLL : Phase--locked loop FLL : Frequency locked loop Figure 3--2 CMCF board synchronization (full configuration) Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--8 Architecture 3.2.1.2 Nortel Networks Confidential Synchronization The CMCF Phase2 board provides synchronization to the radio part of the BTS. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--9 Synchronization is obtained through a temperature--controlled oscillator that allows the selection of timing signal from eight signals (six from the external PCMs, one from an external source, and one from the CMCF Phase2 active). The selected clock signal is routed to a digital phase comparator that authorizes synchronization operations in a frequency locked loop (CMCF Phase2 active) or in a phase locked loop (CMCF Phase2 passive). The CMCF Phase2 passive operates in a phase locked loop so that its H4M clock is synchronized with that of the CMCF Phase2 active. This ensures that phase hopping does not occur during a CMCF Phase2 switchover. GSM Time The processing unit transmits the GSM Time every 60 ms. The GSM Time is transmitted to the switching matrices of the CMCF Phase2 active. The CMCF passive reads the GSM Time in the CMCF Phase2 active, which allows the synchronization of GSM Time on both CMCFs. Figure 3--2 shows the synchronization process on the CMCF Phase2 board. Switchover A switchover occurs in synchronization with the H4M clock. Since the active CMCF and the passive CMCF Phase2 are synchronized (H4M and GSM Time), the switchover does not cause a timing disruption. The switchover sequence is as follows: active CMCF becomes inactive inactive CMCF detects the inactivity inactive CMCF becomes active A CMCF processor becomes inactive in the following circumstances: H16M clock state is NOK and there is dual chain operation the active request is disabled master board is not properly connected to the back panel the active processor is reset while in dual chain operation Defence and redundancy management A switchover from one CMCF Phase2 board to the other in the event of an error on the active CMCF Phase2 board ensures redundancy. The hardware supports duplex and simplex modes. A redundancy channel between both CMCF Phase2 boards ensures the exchange of data between the boards in the event of a switchover. The defense connectivity is shown in Figure 3--3. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Architecture 3--10 Nortel Networks Confidential MASTER CMCF Six Private PCMs Redundancy link Six Clocks Duplex sync CPCMI M/S logic witch Six PCMs SLAVE CMCF Figure 3--3 PE/DCL/DD/0142 411--9001--142 Defense connectivity between the CMCF Phase2 boards (full configuration) Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 3.2.1.3 Architecture 3--11 Concentration and routing The concentration and routing functionality is performed by the active and passive processing units. The master processing unit manages the board resources. The passive processing unit, which operates synchronously with the master unit, manages one PCM, one HDLC link (for active--passive communication), and one RS232 link. The master processing unit receives an external clock signal at 4.096 MHz and generates a 33 MHz reference frequency. This frequency is supplied to the passive unit so that it can be synchronous with the master unit. 3.2.2 Control of the alarm management unit The CMCF Phase2 manages the alarm management unit, the RECAL board, located outside the CBCF Module. The RECAL board collects internal and external alarms and routes them to the CMCF, which routes to the BSC. The communication between the CMCF Phase2 and the RECAL is done using an LAPD protocol link that uses a channel supported by time slot 25 of PCM0. 3.2.3 PCM Interface Up to three CPCMI boards provide the interface between six external PCM links (A--bis) and six private PCMs used inside the CBCF Module. The interface tasks correspond to an electrical level translation and a frame format conversion depending on the type of external PCM link (PCM E1, PCM T1, or HDSL). The external PCM interface has functional blocs that perform the following functions: conversion of analog signals on the A--bis interface and the logical signals of the Framer part of the PCMI management of the synchronization clock transposition between the A--bis and the private PCMs signals 3.2.3.1 Signalling interfaces The CPCMI board uses the PCM and HDSL interfaces described below. PCM A--bis interface The E1 interface is compatible with the G703 Recommendation. Its impedance is 120 (two pairs of bidirectional symmetrical links) or 75 Ohms (coaxial cables). The T1 interface is compatible with ANSI T1.403 and T1.102. Its impedance is 100 Ohms (two pairs of bidirectional symmetrical links). Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--12 Architecture Nortel Networks Confidential HDSL A--bis interface The HDSL--E1 format (2B1Q) is on one single twisted copper pair where the transmission rate is 2320 kbps for a full E1 frame. This rate is compatible with the ETSI ETR 152 RTR/TM--06002 standard. The HDSL--T1 format (2B1Q) is on one single twisted copper pair where the transmission rate is 1552 kbps for a full T1 frame. This rate is not standardized and is considered a proprietary link. Private PCMs One CPCMI board is connected to two private PCM links (PCM0 and PCM1). The O&M communication is done through an HDLC link using TS0 of PCM0. E1/T1 Three bits supplied to the CMCF indicate whether the board is an E1 or T1. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 3.3 Architecture 3--13 DRX functional architecture The DRX board has a digital part, a radio part and a power supply board (Figure 3--4). 3.3.1 Types of DRX boards The DRX boards for S12000 indoor are: DRX ND3 GSM 900 MHZ DRX ND module 1800 MHZ DRX ND PCS 19000 MHZ E--GSM DRX ND module The DRX boards for S12000 outdoor are: DRX ND PCS DRX ND DCS DRX ND E--GSM MOD: DRX ND3 GSM 3.3.2 DRX digital part The DRX digital part consists of four units: the Advanced MaNagement Unit (AMNU), which manages the DRX the Digital Control Unit for eight chanels (DCU8), which is the signal processing unit the Time Base Unit (BDT), which manages the GSM_TIME for the DRX TX logic, which is the interface with the transmission part in the DRX Radio board 3.3.2.1 AMNU unit The AMNU unit manages the DRX. It manages the eight time slots of a TDMA frame and the radio signaling functions. These functions can be broken down into communication functions (RSL) on the one hand, and operating and maintenance functions (O&M) on the other (see Figure 3--5). Communication functions Communication functions include: Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--14 Architecture Nortel Networks Confidential routing functions concentration functions Routing functions The TDMA frame management unit routes messages from the BSC. The messages arrive on the RSL and can be broken down into two categories: messages concerning processing of a single time slot messages concerning all the time slots in the TDMA frame Concentration functions There are two types of messages: transparent messages non--transparent messages PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential + 5.4V + 12V -- 12V Architecture 3--15 Radio DRX Frequency reference unit RX Power supply board TX DRX digital DCU8 Logical TX FH bus + 48Vdc AMNU Test Figure 3--4 Private PCM BDT Ethernet DRX board: functional block diagram Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--16 Architecture Nortel Networks Confidential BSC Level 1 wires Level 2 wires O&M Level 3 radio Communication function (RSL): -- routing -- concentration Radio resources management Operations & Maintenance functions (O&M) AMNU Radio measurements management Level 2 radio management Level 1 radio access Level 1 radio Figure 3--5 SPU AMNU functions PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--17 Transparent messages are simply concentrated on a time slot of the internal PCM. Non--transparent messages are: radio measurement messages of the mobile interference measurement messages on the inactive channels load messages on the RACH channel load messages on the PCH channel Non--transparent messages are transcoded, averaged and grouped in a single message to the BSC. This message is sent to the same time slot as the transparent messages. Operation & Maintenance functions The following Operation & Maintenance functions are processed by the Frame management unit (AMNU): start--up, downloading, initialization configuration monitoring/defense Start--up/Downloading/Initialization The AMNU is started by a hardware reset or a reinitialization message sent by the BSC. It causes configuration of the LAPD and establishment of the OML link with the BSC. The DRX subsystem can be downloaded only after the BCF is downloaded, and the units of site management, cell management, and Abis signaling of the DRXs have been configured. The BSC systematically initiates a downloading phase of the catalogue files and of the following software units: AMNU SPU DLU BOOT TX BDT BIST of the SPUs A re--flashing of the units for which the software versions are different follows the downloading. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--18 Architecture Nortel Networks Confidential Configuration The DRX is configured by the BSC by means of an OML link on the Abis interface. Configuration can be broken down into: a general configuration: • configuration of the TDMA frame time slot configurations: • configuration of radio time slots • configuration of the frequency hop Configuration of the TDMA frame provides the DRX with parameters shared by the whole cell, such as: cell identity (BSIC) BCCH frequency indication of frequency hopping implementation cell type (normal or extended) and with parameters specific to the DRX: the frequency of the TDMA frame if there is no frequency hopping indication of implentation of diversity in reception The TDMA frame cannot be dynamically configured. A change of configuration requires re--start of the downloaded software. The configuration of the radio time slot specifies the type of logical channel to use for a time slot. The configuration of the frequency hopping specifies, for a time slot, the list of frequencies to use as well as sequencing. This configuration is optional and only appears if the frequency hopping was requested in the TDMA frame configuration. Monitoring The BSC regularly sends status requests to the DRX to detect any problems on the OML link. LAPD break The LAPD, OML and RSL links are monitored by a timer. If level 2 loss is detected, the BSC and the AMNU try to reconnect. If connection has not been made by the end of the time--out, the AMNU is reinitialized. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--19 Event reports The AMNU collects all events detected by the DRX equipment. It performs filtration, and sends error reports to the BSC. Transmission error reports and fault management on RX--splitters alarms are sent through the CBCF. The AMNU filters to prevent repetition of non--transient events, which means it can send the BSC a single indication. The AMNU sends errors to the BSC by sending “event report” messages. There are two types of “event report” messages: transient messages, which are not acknowledged by the BSC non--transient messages, which must be acknowledged by the BSC, and which are repeated by AMNU until they are acknowledged Radio signaling function The radio signaling function supports two Signal Processing Units (SPU). Each SPU manages one time slot. Two versions of the SPU software are available. One corresponds to propagation conditions in rural areas and the other to propagation conditions in urban areas. For rural areas, the algorithm parameter is set at zero. For urban areas, the alogrith parameter is set at 0.5, and the interferer cancellation algorithm is active. The radio signaling functions can be broken down into four groups of functions: level 1 radio access level 2 radio management of LAPDm signaling level 3 radio management, which is made up of two functions: • radio resources management • radio measurements management operation & maintenance Level 1 radio access Level 1 radio access makes it possible to manage dialogue between the AMNU signaling function and the SPU processors that are connected to the AMNU. It offers: configuration of operating modes for each SPU SPU control transmission and reception of data on the radio channel, respecting methods for slaving to the radio frequency Level 2 radio management Level 2 radio management manages the LAPDm level 2 signaling on the radio channels. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--20 Architecture Nortel Networks Confidential Radio resources management ( level 3 radio) Radio level 3 provides the following functions: level 2 management on the common channels control of level 2 functions on dedicated channels activation of the common channels organization of the Common Control CHannel (CCCH), including chaining and repetition of paging messages and transmission of dedicated channel allocation messages activation or deactivation of dedicated channels, implementation of encryption and channel mode changes providing SPU processors with system information on the SAACH and BCCH channels detection of “random access” and “handover access” detection of paging channel (PCH) load detection of radio link attenuation (monitoring of the upstream SACCH channel), verifiable by the OMC sending of the mobile transmission power change Radio measurements management (level 3 radio) This provides the following functions: return of interference measurements carried out by the SPU processors on the inactive dedicated channels and transmission of these measurements to the AMNU concatenation of measurements made by the SPUs on the active dedicated channels and those transferred by the mobile over the same period Operation & maintenance functions (O&M) These functions provide configuration and deconfiguration of the time slots and frequency hopping functions. Network ID With the implementation of V15.0, the BTS detects the type of DRX and PA during connection with respect to the BCF and the DRX. Note the following restrictions: If a DRX is not yet connected to the BCF, its type is set to “DRX type” until it is connected. If a PA is not yet connected to the DRX, its type is set to “PA type” until it is connected. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--21 If a fault beginning has been sent on the DRX type (or PA type) of equipment, because the real equipment type was unknown, the fault ending must be sent on a DRX or PA type, even if the DRX or PA have connected themselves between the fault begin and fault end. EDGE implementation In V15.1, the BSC can configure one TDMA with up to: 8 DS0 (joker and main) per TRX (with CBCF, CMCF Phase 2) The joker channel is used when the size of the frame exceeds the size of the main channel, which is the case for CS3/CS4 in GPRS and MCS3 to MCS9 in E--GPRS. In that case, the main channel is filled with the maximum information (i.e 302 bits of payload) and the remainder is split into N equal pieces that are sent in the Joker channel during the same 20ms period. In order to save PCU CPU Power, the content of the jokers is aligned on a byte boundary. As the maximum number of joker TS per TDMA is directly linked to the type of site, the following rule is mandatory: both chains of the site must have the same level of hardware. If this rule is not verified: see the engineering rules for more details. 3.3.2.2 DCU8 unit The DCU8 unit consists of two signaling processing chains, A and B, as shown in Figure 3--6. Each chain handles four calls in full--rate voice mode and eight calls in half--rate voice mode. Chain A and chain B are connected to a subassembly, the BB_FILT ASIC, which is the interface with the radio part and filters reception samples before sending them to the two chains. A second subassembly, the CHIF, which is associated with the BB_FILT ASIC, calculates encryption and decryption masks. Chain A processes even radio reception time slots and odd radio transmission time slots. Conversely, chain B processes odd radio reception time slots and even radio transmission time slots. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Architecture 3--22 Nortel Networks Confidential Receivers CHIF FH bus BB_FILT GSM TIME bus DSP EGAL RAM DSP DECOD DSP DECOD RAM RAM DSP TRANS DSP TRANS RAM DPRAM DPRAM SPU (A Chain) SPU (B Chain) AMNU Figure 3--6 DCU8 unit diagram PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--23 The DCU8 unit has five DSPs: one EGAL DSP, which equalizes the reception signal two DECOD DSPs, which handle reception signal decoding and level 1 sequencing two TRANS DSPs, which handle transmission signal processing, encoding, and the interface with the remote transcoder There is one DECOD DSP and one TRANS DSP in each chain. SPU The SPU carries out processing associated with the transmission layer (see Figure 3--7 and Figure 3--8). Its functions are: demodulation of GMSK signal at reception ciphering/deciphering of sent and received data encoding/decoding and interleaving/de--interleaving of data from the various channels encoding/decoding of voice and data (from 13 kbit/s to 16 kbit/s and vice--versa) transfer of discontinuous transmission (DTX) signal control of transmitters (GSMK--8PSK) and receivers processing of radio measurements Demodulation function Demodulation consists of extracting the binary data transmitted from the GMSK signal received, which is 144 bits for a normal burst and 36 bits for an access burst. This is done for the eight time slots of the radio channel. The demodulation principle selected takes into account the inter--symbol interference resulting from smoothing of the transmission phase transitions (limitation of the transmitted spectrum), multiple path phenomena, and distortion introduced by the channel filter upon reception. Implementation of this type of demodulator requires modification of the transmission channel as concerns pulse response, frequency deviation, and reception times. Determining these parameters is part of the job of the demodulation function. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Architecture 3--24 Nortel Networks Confidential DRX radio Demodulation Deciphering (optional) De--interleaving Receiver management SPU Decoding Speech/data Speech/data or signaling 08.60 format coding Signaling AMNU Figure 3--7 SPU reception functions DRX radio Ciphering (optional) SPU Interleaving Coding Transmitter management Signaling Speech/data 08.60 format decoding AMNU Figure 3--8 SPU transmission functions PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--25 The receiver executes the space diversity function. Both received channels are combined in an equalizer which carries out joint equalization. For each of these channels, the pulse response as well as the C/I+N ratio are estimated. These ratios are used to weight the predictions and samples of each channel. The symbols from the equalizer are then decrypted, de--interleaved and decoded to restore the control messages and traffic sent by the mobile. Ciphering/deciphering function The fluxes of binary symbols sent and received on each time slot on the TCH or SDCCH are encrypted one bit at a time, in compliance with the ciphering/deciphering algorithm. The ciphering or deciphering operation protects confidentiality of voice and signaling. It consists of adding binary bits, one by one, between sent and received data and a binary train (the ciphering sequence), generated from a ciphering key and the TDMA frame number of the time slot. Encoding/decoding and interleaving/de--interleaving functions All traffic and control logic channels are encoded to protect useful information against transmission errors. Each channel has its own encoding scheme, usually including the following steps for each block: protection of data bits with parity bits or a block code encoding of the “data bits + check bits” unit with a convolutional code. This operation results in encoded bits. rearrangement and interleaving of the encoded bits burst formating For data, the encoding procedure depends on the rate: the interleaving level is higher for data than for voice. Some channels do not use the encoding schemes described above, in particular the RACH, FCCH and SCH channels. For these channels, interleaving on several time slots does not exist. Mobile transmission timing advance function The BTS must measure the delay on the received signal when the mobile station makes itself known. This measurement, known as timing advance, is forwarded in the dedicated channel assignment message (immediate assignment) to the MS, which uses this parameter to anticipate its transmission timing. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--26 Architecture Nortel Networks Confidential During call establishment, the BTS computes the timing advance value and sends it within CHANNEL REQUIRED message to the BSC. If this value is above the threshold, then the BSC rejects call establishment. In ongoing call conditions, the timing advance is calculated at regular intervals and sent to the MS over the downlink SACCH channel. The calculation is based on other measurements taken during demodulation the timing advance used by the mobile station that is returned in the layer 1 header of the uplink SACCH Discontinuous transmission (DTX) Discontinuous transmission allows signals to be sent over the radio channel alone when a speech signal is present. This limits interference and MS power consumption. For each call, the MSC indicates whether the BSS “does not use” or “may use” the DTX. The principle behind discontinuous transmission is as follows: The base or mobile vocoder has a Voice Activity Detector (VAD) that detects if the frame constructed every 20 milliseconds contains speech. If the frame does not contain speech, the vocoder constructs a special frame called the SIlence Descriptor (SID) that contains all the background noise description elements. This frame is sent to produce a comfort noise at the far end, and radio transmission stops. The vocoder periodically reassesses the ambient noise and reconstructs the SID frame. The frame produced in this way is sent in step with the SACCH (once every four 26-frame multiframes, or 480 milliseconds). When the vocoder detects new speech activity, a special SID frame indicating the End Of Silence (EOS) is sent, and normal speech frame sending resumes. On the receive end, additional processing sequences interpret the incoming traffic frame types (speech, SID, FACCH, nothing) using the related flags (BFI, SID, TAF) and perform the appropriate operations. The DTX is allowed for data in non-transparent mode. BCCH filling The BCCH frequency must be transmitted continuously so mobile stations can perform field strength measurements in neighbouring cells. Continuous transmission is accomplished in various ways: When frequency hopping is not used, the TRX uses the BCCH frequency as the carrier frequency for all the channels it supports. The TRX sends fillers on the BCCH frequency although it may have nothing to send in a given time slot. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--27 When frequency hopping is being used, one of the following occurs: • The hopping laws authorize permanent BCCH transmission, and all the TRXs help fill operations. • The hopping laws do not authorize permanent transmission and a transmitter is required to enable BCCH “filling” independently and take over when the hopping laws step down. Transmitter and receiver control The SPU controls a transmitter and a receiver. It calculates the frequency hopping law and determines the frequencies to synthesize. The transmitter is controlled by the FH bus. The SPU sends the following to the transmitter: the power and frequency to use the bits to send the time synchronization signal The SPU sends the following to the receiver: the frequency to use for the following time slot the synchronization clock signal the GSM TIME synchronization signal The SPU receives the following from the receiver: digitized samples from the reception channel the scale factor (gain) the receiver alarms Radio measurement processing The Radio Measurement Processing performed by the BTS ensures that the network and the mobiles can communicate with each other with minimum interference at the lowest possible transmission power and with the best transmission quality. Measurements processed by the BTS include signal strength and signal quality. The mobile takes measurements in the downlink direction (BTS - > MS), while the BTS takes them in the uplink direction (MS → BTS). Other measurements include signal strength on the BCCH frequency of the surrounding cells and the MS_BS distance. The BTS averages these measurements for each connection. The averaged measurements are then used as the basis for a decision--making process for the following: power control call clearing inter--cell handover intra--cell handover Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--28 Architecture Nortel Networks Confidential The BTS cyclically sends to the BSC the interferences measures done on the inactive channels. BB_FILT ASIC The BB_FILT ASIC constitutes the interface between the signal processing unit (SPU) of the DRX and the radio RX module on the one hand, and the enciphering ASIC on the other hand. It carries out the band--pass filtering of the digital samples output by the radio RX module, and generates the FH bus. A single BB_FILT ASIC processes all eight TSs of the radio frame. The functions provided by this ASIC include: GSM time reception interface providing the synchronization of the DSPs on the radio frame on transmission: • recording of the TX parameters and of the ciphering key, supplied by the DSP EGAL • transfer of the ciphering key to the CHIF ASIC • reading of the ciphering template from CHIF ASIC • ciphering of the parameters and transmission on the FH bus on reception: • recording of the RX parameters and of the ciphering key, supplied by the DSP EGAL • programming of RX hopping synthesizers • generation of channel and sampling frequency selection signals for the analog to digital converter • base--band filtering of the digital samples delivered by the dc converter • selection of the best gain for each channel (normal and diversity) • transfer of these selected filtered samples to the DSP EGAL • transfer of the deciphering key to the CHIF ASIC • reading of the deciphering template from CHIF ASIC, and transfer of the template to the DSP EGAL 3.3.2.3 BDT unit The BDT (time base) unit regenerates GSM TIME signals. The GSM time is distributed to the BDT unit of each DRX by means of the GSM TIME channel of the private PCM every 60 ms. The value of the propagation delay is sent to the DRX by means of the OML link of the private PCM. From these two data, each DRX makes the necessary corrections and regenerates the GSM TIME bus. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--29 If, for any reason, the GSM time is not distributed on the BDT unit, the BDT unit locally maintains the GSM TIME bus signals and continues to provide the GSM time to the DRX units. The BDT unit is made up of a logic block and a calculation block. Digital block The BDT unit receives a 26 MHz clock signal derived from the radio unit clock. This clock signal has the same stability properties as the 4Fbit clock signal provided by the BCF synchronization board and is more stable in the short term. The digital block generates the following signals: H4M (4.096 MHz) STRTM (recurrent pulse at 577 microseconds) TIME_DATA (containing T1, T2, T3 and TN) Calculation block The calculation block synchronizes the H4M and STRTM signals with the synchronization unit signals of the BCF. In addition, it updates the values T1, T2, T3 and TN. The synchronization principle consists of forcing a divider--by--24 counter to divide by 23 (if the BDT is slow) or by 25 (if it is fast). This way, every 23 or 25 periods of 26 MHz (depending on whether the slow BDT is accelerated or the fast BDT is slowed down), the BDT corrects a period of 26 MHz. 3.3.2.4 TX logic unit The main role of the TX logic unit is to control the radio subassembly in real time. It receives the BCF configuration commands from the AMNU. It carries out the processing and sends back reports. Once configured, the TX logic unit reads, on each time slot, the data present on the FH bus. Then it calculates the frequency code and the power code to be used with the radio interface. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--30 Architecture Nortel Networks Confidential Transmission power In general, radio power is determined by two inputs. One controls the maximum static power and the other gives the dynamic attenuation at each time slot. The static power is given by the CBCF in the CONFIG message. The TX calculates attenuation to compensate for cable loss between the TX--driver and the power amplifier. The dynamic power is provided by the ASIC of the TX logical unit. Its software reads the value and commands the TX--driver accordingly. In the case of a BCCH filler, the additional attenuation introduced is always zero. The power values that the TX and the mobile have to use are fixed by the BTS according to a control algorithm using the measurements results that it makes and the thresholds stockpiled in the OMC. The mobile and the BTS power control can be inhibited by the OMC. The power control aim is to minimize the interferences, ensure good transmission quality, and save the mobile’s batteries. Power slaving The setpoint value is slaved to compensate for gain variations of the transmission chain. Two slaving loops are used to compensate for attenuation in the gain chain. Antenna GMSK Modulation Internal loop Radio Frequency TX DRIVER TX LOGIC External loop PA or LPA Control bus DRX Figure 3--9 Power slaving diagram PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--31 These loops can be in the following states: Open: This state is used for calibration of the internal loop with the external loop. Initialization: This state is used for loop start--up. Error: A loop is in error when it is not longer in correspondence with the setpoint. Closed: A loop is closed when it is in slow slaved mode. 3.3.3 DRX radio part The DRX radio part is composed of a power supply board and of the DRX radio board. The power supply converts common -48 V to specific +5 V/± 12 V power supply signals for the DRX radio board. The DRX radio board is composed of three units: the Frequency reference (Fref) unit the receiver unit (RX) the transmitter unit (TX) The DRX boards for S12000 indoor are: DRX ND3 GSM 900 MHZ DRX ND module 1800 MHZ DRX ND PCS 19000 MHZ E--GSM DRX ND module The DRX boards for S12000 outdoor are: DRX ND PCS DRX ND DCS DRX ND E--GSM MOD: DRX ND3 GSM 3.3.3.1 Frequency reference unit The reference frequency for all local oscillators is derived from the Fref frequency supplied by the VCXO, itself derived from the 4.096 MHz signal provided by the DRX digital part (CBCF). It provides a very steady and spurious--free reference clock for the RX/TX hopping and fixed synthetizers (13 MHz signal). 3.3.3.2 Receiver unit (RX) The receiver unit (RX) has four main functions. Slot--to--slot frequency hopping is achieved with a dual synthetizer arrangement, that is, one is active while the other is setting to the following frequency. The RX main functions are: Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--32 Architecture Nortel Networks Confidential signal down conversion from radio frequency band to Intermediate Frequency (IF) then to base band frequency channel filtering (in IF) RX--level dynamic management digitization of the base band signal The base band signal is then sent in binary form with its scale factor to the DRX digital part. The receiver unit works on signal GMSK and on signal 8--PSK. Receiver configuration The receiver configuration is done by the DRX digital part, which sends: the reception frequency to be used for the following time slot the synchronization clock signal the GSM time synchronization signal Receiver monitoring The receiver monitors internal equipment: microprocessor and Phase Lock Loops (PLL). If there is a failure or other problem, it generates alarms to signal: microprocessor fault frequency range not respected (if the frequency to synthesize as requested by the DRX digital part is incorrect) PLL loss of alignment (if one of the receiver PLLs is not aligned) 3.3.3.3 Transmitter unit (TX) The Transmitter unit has two main parts: IF and RF chains gain control loop (or Automatic Level Control) IF and RF Chain An I/Q modulator with a Local Oscillator (LO) phase--locked on a reference frequency transposes the two baseband I/Q signals into the IF chain. This 125 MHz local oscillator (LO_IF) phase--locked on a 13 MHz signal translates the baseband signals into an intermediate frequency. (The IF is 125 MHz in GSM 850 and 299 MHz in GSM 1900). The second LO is used for up conversion from IF to RF. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--33 The up--conversion is followed by bandwidth filter, amplifier stages, variable voltage attenuators, and digital attenuators. The transmitter unit works on signal GMSK and on signal 8--PSK. Gain Control Loop (or Automatic Level Control) The driver transmit chain upholds the accuracy of the transmission power compatible with the GSM recommendations against time. The control dynamics use two components: one voltage variation attenuator (VVA) and a step--by--step digital attenuator that takes target attenuation into account and compensates for it. The Automatic Level Control also includes the PA. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--34 Architecture 3.3.4 DRX shutting down 3.3.4.1 DRX soft blocking Nortel Networks Confidential The DRX soft blocking consists in setting a DRX “out of service” without stopping the calls established on this DRX. If possible, an intra--cell handover is performed for those calls to release the DRX more quickly. Otherwise, the DRX will be released after the normal completion of the calls. 3.3.4.2 DRX soft blocking coupled with a forced handover To speed up the DRX shutting down, the DRX soft blocking can be coupled with a forced handover. The calls will be handed over a neighbour cell if the signal strength is over the handover threshold for that cell. 3.3.4.3 Hint DRX soft blocking and DRX soft blocking coupled with a forced handover can be combined into one command. This allows greater efficiency in DRX shut--down. 3.3.5 Power supply board The power supply card provides a dc voltage between 40.5 V and 57 V, to be converted into +5 V, +12 V and - 12 V. The 48 V voltage is sent first to the logical DRX unit converter, then, after filtering, to the logical DRX unit and the radio DRX unit converter. The power supply of the board varies according to the DRX types and on the frequencies. The mechanical and electrical grounds are linked to the common reference zero volts. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 3.4 Architecture 3--35 e--DRX functional architecture The e--DRX board consists of (see Figure 3--10): an e--LDRX digital board including a dc/dc converter, a frame processor TX logic (GMSK and 8--PSK modulation), and a local time base, working for all frequency bands an e--RDRX radio board including a dc/dc converter, a low power driver and a dual receiver 3.4.1 Modifications between the DRX and e-- DRX This paragraph describes the modifications between the current DRX and the e--DRX. The main features of the e--DRX are: signal processing capacity improvement 8--PSK modulation compatibility receive dynamic extension TX output power dynamic reduction packet backhaul readiness double current on internal PCM 3.4.1.1 e--LDRX board modifications The main modifications concerning the e--LDRX board are: the migration of BDT, AMNU, and TX into a single FPGA the use of one PowerQuicc the introduction of the 52 MHz frequency reference function the use of two DSP the extension of the memory capacity (8 Mb for SDRAM, 4 Mb for flash and 2 Mb for SRAM) the size reduction and integration of the dc/dc converter on the e--LDRX board the lower power consumption (<15W) Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--36 Architecture Nortel Networks Confidential Radio reception Radio transmission RX TX e-- RDRX radio board DC/DC converter e-- LDRX digital board DC/DC converter FH bus Power supply Debug Figure 3--10 PE/DCL/DD/0142 411--9001--142 Ethernet Private PCM e--DRX board: functional block diagram Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 3.4.1.2 Architecture 3--37 e--RDRX board modifications The main modifications concerning the e--RDRX board are: the removal of the 104 MHz frequency reference the use of RXIC2 module (IF => BF transposition) the RX dynamic extension provided by an AGC (--13 to - 110 dBm) the TX output power dynamic reduction the integration of the dc/dc converter on the e--RDRX board the lower power consumption (<15W) double rate on internal PCM 3.4.1.3 e--DRX mechanical/electrical modifications The main mechanical and electrical modifications applied on the e--DRX are: RF shielding provided by a single cover new cooling method: direct forced convection for Digital board CMS connectors between e--LDRX and e--RDRX new RF connectors (long thread) Radio and Digital DC/DC converters are mounted respectively on e--RDRX and e--LDRX. CMS DC/DC converters +5V output e--RDRX DC/DC converter coupled with - 5V and +12V discrete DC/DC converter. dual tunable output +3.3V/+2.5V or +1.8V e--LDRX DC/DC converter coupled with +5V discrete DC/DC converter 3.4.2 Main external connections 3.4.2.1 Private PCM A private internal PCM is used to link the e--DRX to the BCF. The proprietary interface has the same definition as the previous internal PCM, except that the clock is fully synchronous with the radio interface. This bus carries the following information: Radio Signaling Link (RSL) and local Operation and Maintenance (OML) on one time slot Traffic links on two, three, four, six or eight time slots GSM_TIME channel on a separate time slot The feature allows the e--DRX to be remotely controlled. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--38 Architecture Nortel Networks Confidential The TSs for OML/RSL and GSM Time have a single rate whereas the TSs for traffic may have a double rate when requested by the CMCF Phase2 board. Furthermore, the eDRX matrix may also have a double rate when requested by the CMCF Phase2 board. 3.4.2.2 FH bus The FH bus defined for the S4000 BTS is used, allowing frequency hopping and S4000 BTS compatibility. HDLC bus is no longer supported on the e--DRX. 3.4.2.3 e--PA and HePA Control an asynchronous bi--directional serial link operating in duplex mode carrying at each RF time slot the mean RF output power of the associated e--PA or the HePA, its temperature, and e--PA and HePA internal alarms (temperature, current, VSWR) a discreet burst synchronization signal. The e--DRX e--PA and e--DRX HePA Control interface is compatible with both the standard PA, HePA, and the standard e--PA. 3.4.2.4 Power Supply The e--DRX is powered by a - 48V dc supply. Typical consumption is 25W. 3.4.2.5 Test links The e--DRX has an Ethernet 10/100 baseT port and an asynchronous serial port. It also has serial lines for emulator connections, and real time trace facilities. 3.4.2.6 RF interfaces The e--DRX unit provides RF reception with diversity and RF transmission at low level. Low level GMSK RF Output (--3dBm typical / 50 Ohms) RF Input Main and RF Input diversity (--84 dBm to 0 dBm / 50 Ohms RF inputs multiplexed with provisional +12V dc. Supply for RF devices (splitters). 3.4.3 e-- DRX functional description This paragraph describes the functional architecture of the e--DRX, but does not detail each part. The aim is to give enough information to easily approach the main features. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 3.4.3.1 Architecture 3--39 Logic unit (e--LDRX) The logic unit (e--LDRX) contains (see Figure 3--11): an FPGA unit which provides: • a control and switching matrix management function • a time base function • a synchronization function a management unit (AMNU) which processes: • start--up, downloading, initialization • configuration • monitoring • LAPD break • event reports a transmission unit which provides: • a radio signaling function • a signal processing function • a power regulation function • a RX logic function • a TX logic function FPGA unit Control and switching management function Setting up by setup of e--DRX for AMNU, transmission, and other functions When the BTS is activated, it must be connected to the BSC to work. A link is set up on an external PCM link. Downloading When communications have been set up with the BSC, the BTS reports its status. The BSC downloads, if necessary, the software to the BTS. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--40 Architecture Nortel Networks Confidential Logic unit (e--LDRX) FPGA unit Synchronization function Control and switching management function Time base Management unit (AMNU) Radio signaling function Processing signal function (SPU) RX logic function Power regulation function TX logic function Transmission unit Radio unit (e--RDRX) Figure 3--11 PE/DCL/DD/0142 411--9001--142 Logic unit (e--LDRX): functional architecture Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--41 Synchronization management At the start--up, the BTS selects the clock. During LAPD connection, the BTS forces the clock onto the PCM carrying the LAPD. The e--DRX board recognizes the S12000 thanks to the SEL and adapts to the private PCM mapping. Switching matrix management Each PCM link managed by the switching matrix has a transmission test interface, reception test interface, and an idle interface. The switching matrix is configured when the BSC requests set up or release of a signaling or traffic channel from the BTS. Signaling channels are set up (or broken) between a transmission signaling TS and a non--concentrated link. This operation may entail (dis)connection between a concentrated link TS coming from the BTS and a PCM link TS on the PCM interface. Traffic channels are set up (or broken) between a transmission traffic TS and a PCM link TS on the PCM interface. Data signaling concentration function The BTS uses this function to set up the communication between the BSC and the other entities that make up the BTS. This function is implemented with the LAPD protocol that serves concentrator and routing functions. Time base The time base regenerates the GSM_TIME bus with information issued from the GSM_TIME channel. If for any reason the GSM time is not distributed to the time base, the time base maintains the GSM_TIME bus signals locally and continues to provide the GSM time to the logic unit. Synchronization function The synchronization function must synchronize the transmissions on a single reference time: GSM _TIME. The network provides a radio reference clock via two PCM links that ensures long--term accuracy. This clock is used by the synchronization module to generate an exact reference time for the radio interface. If the external reference signal is missing, the BTS selects the local clock. The synchronization function is monitored by internal control and monitoring mechanisms. These mechanisms ensure that the synchronization is operating correctly and that the GSM time is available on the GSM_TIME bus. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--42 Architecture Nortel Networks Confidential AMNU The AMNU (Advanced MaNagement Unit) monitors site and transmissions and manages the eight time slots of a TDMA frame. The following functions are processed by the frame management unit (AMNU): start--up, downloading, initialization configuration monitoring LAPD break event reports Start--up, downloading, initialization The AMNU is started by a hardware reset or a re--initialization message sent by the BTS. It configures the LAPD and establishes an OML link with the BSC. Depending on the BSC request, the BTS systematically initiates a downloading phase of the catalogue files and the following software units: boot software and operating system: BOOT TRX monitoring and maintenance software: OML AMNU site monitoring and maintenance software: BCF test software: TOOLS TDMA1 & TDMA2 radio signaling link management software: RSL1 & RSL2 hardware configuration DLU: DLU A reflashing of the units for which the software versions are different follows the downloading. Configuration The transmission is configured by the BSC via the BTS. The configuration provides: a general configuration. It contains the configuration of the TDMA frame and provides the logic unit parameters shared by the whole cell, such as: • cell to identity (BSIC) • BCCH frequency • indication of frequency hop implementation • the frequency of the TDMA frame if there is no frequency hopping PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--43 a configuration of the radio TS. It specifies the logic channel type to use for TS. a configuration of the frequency hop. It specifies, for TS, the list of frequencies to use as well as sequencing. This configuration is optional and only appears if the frequency hop was requested in the TDMA frame configuration. Supervision The BTS regularly sends status requests to detect any problems. LAPD break A timer monitors the LAPD with the OML and RSL links. If level two loss is detected, the BSC and the AMNU try to reconnect. If connection is not re--established before the end of the time--out, the AMNU is reinitialized. Event reports The AMNU: collects all events detected (internal or external alarms) provides the filtration and reports errors (transmission/reception) to the BSC provides the filtration to prevent repetition of non--transient events, which means it can send to the BSC a single indication The AMNU sends errors to the BSC by sending “event report” messages through the BTS. There are two types of messages: transient messages which are not acknowledged by the BSC non--transient messages which must be acknowledged by the BSC and which are repeated by AMNU until they are acknowledged Transmission unit Radio Signaling function The main characteristics of this function are: radio access management (level 1) It manages a dialog between the AMNU signaling functions and the signal processing function (SPU), which are connected to the AMNU. radio management (level 2) It manages the LAPDm level 2 signaling on the radio channels. radio resources management (level 3) It provides level 2 management on the common channels and control of level 2 functions on dedicated and common channels. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--44 Architecture Nortel Networks Confidential radio measurements management (level 3) It provides the return of interference measurements carried out by the one signal--processing unit on the inactive dedicated channels and transmission of these measurements to the AMNU. Operation & Maintenance functions (O&M) They provide configuration and unconfiguration of the TS and frequency hopping functions. Signal Processing function The signal processing (SPU) function performs processing associated with the transmission layer executes a number of functions, such as: modulation/demodulation (GMSK or 8--PSK) ciphering/deciphering of sent and received data coding/decoding and interleaving/de--interleaving of data from the various channels processing radio measurements mobile transmission timing advance function discontinuous transmission (DTX) BCCH filling transmitter and receiver control Power regulation function The Power regulation function performs instantaneous checks on the associated radio subset. It receives configuration instructions via the AMNU unit, launches processing, and returns reports. When the function is configured, each TS in attendance on the FH bus is in ready state. Then the function calculates the frequency and the power code to be applied to the radio interface. Each function acts as a control of the set point (emission power), to improve the non--linearity of the gain of the transmission chain. It launches the following: frequency hopping management power slaving transmission power alarms management RX logic function The logic functions PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--45 maintain the interface between the SPU functions with the RX radio functions on the radio unit (e--RDRX) and the ciphering Uplink/Downlink. filter the digital samples, provided by the RX radio functions, to base band signals generate the FH bus Each RX radio functions processes the eight TSs of the radio frame. The main characteristics of the RX radio function are: an interface for the reception of the GSM time to maintain the DSP synchronization on the radio frame for the transmission: • the recording transmission parameters and the cyphering key • the parameters cyphering and the transmission on the FH bus for the reception: • the recording of the reception parameters and the ciphering key • the base band filtering of the digital samples provided by the converter • the ciphering key moving TX logic function This function maintains the interface between the SPU functions and the TX radio functions of the radio unit (e--RDRX). The TX logic function processes the eight TSs of the radio frame. It ensures the digital/analog conversion of samples, and receives: information about the burst bits, from the RX function and via the FH bus modulated signal samples, according to the modulation format previously set digital data (alarms, output power, etc.), from various equipments of the analog part of the transmitter ensures corrective actions 3.4.3.2 Radio unit (eRDRX) The radio unit (see Figure 3--12) processes the radio channels for transmission/reception function. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--46 Architecture Nortel Networks Confidential The e--DRX board includes the following functions: power supply unit receiver unit and transmitter unit frequency reference unit Power supply unit The power supply unit converts common -48 V to specific +5 V/+12 V power supply signals for the e--DRX radio board. Frequency reference unit The reference frequency is synthesized by 13 Mhz Phase--Locked--Loop, referenced with the 4.096 MHz (H4M) provided by the digital board. Transmitter unit The transmitter unit contains the transmission channels of lower power which manage the Radio Frequency (RF) signals (GSMK or 8--PSK) and Intermediate Frequency (IF) signals as follows: I/Q modulation IF filtering and amplification IF and RF transposition RF band filtering amplification and variable attenuation output power control Receiver unit The receiver unit includes the reception radio channels which manage the RF signals (GSMK or 8--PSK) and the IF signals as follows: RF signals from LNA--splitter RF to IF transposition IF channel filtering and amplification RF to BF transposition Analog--to--digital conversion PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Architecture 3--47 Logic unit (e--LDRX) Radio unit (e--RDRX) RX radio function TX radio function RX2 analog--to--digital converter Figure 3--12 Frequency translation (LF/IF) Frequency translation (LF/IF) RX1 (IF) TX1 (IF) Frequency translation (IF/RF) Frequency translation (IF/RF) RX1 (RF) TX1 (RF) Amplification RX module (LNA--Splitter) Amplification TX module (LPA) Radio unit (e--RDRX): functional unit Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 3--48 Architecture Nortel Networks Confidential PAGE INTENTIONALLY LEFT BLANK PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Software descrIption 4--1 SOFTWARE DESCRIPTION 4.1 BTS software presentation BTS software is divided into downloadable files and an onboard PROM. 4.1.1 Downloadable files The BSC downloads these files via the A--bis interface. There are two sets of files: BCF and DRX. Each set is arranged in a file catalogue that contain the list of files and the files themselves. 4.1.2 PROM PROM chips are read-only memory units used to store software. They are all installed on all BTS equipment boards. 4.1.2.1 S12000 BTS CBCF Software The software product associated with the boards and slaves of the CBCF Modules are listed in Table 4--1. Board Sofware product name Software product type CBCF Module PE_CBCF_B PE_CBCF_DLU0 Boot DLU Code CPCMI PE_CPCMI_E1 PE_CPCMI_T1 Load Load RECAL PE_RECAL Load Table 4--1 CBCF software product names Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 4--2 Software descrIption 4.1.2.2 Nortel Networks Confidential S12000 BTS family DRX Software As listed in Table 4--2, the software products vary depending on whether the BCF or CBCF is used in the BTS. DRX O&M software is used with the BCF. DRX COAM is used with the CBCF or BCF from V12 onward. Board Software product type DRX O&M/COAM PE_AMNU_COAM_L PE_AMNU_RSL_L PE_AMNU_B PE_SPU2G_EGAL1_L PE_SPU2G_EGAL2_L PE_SPU2G_1620_L PE_SPU2G_BIST PE_SPU2G_BIST_1620 PE_TX_L_COAM PE_BDT_L PE_TOOLS O&M AMNU LOAD RSL AMNU LOAD AMNU BOOT SPU EGAL1 SPU EGAL2 SPU 1620 BIST SPU BIST SPU 1620 TX BDT PL TOOLS DRX PE_AMNU_COAM_L PE_AMNU_RSL_L_C PE_AMNU_B PE_SPU2G_16410_L PE_TOOLS O&M AMNU LOAD RSL AMNU LOAD AMNU BOOT SPU 16410 PL TOOLS Table 4--2 PE/DCL/DD/0142 411--9001--142 Sofware product name S12000 BTS family : DRX software product names Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 4.2 Software descrIption 4--3 BTS software functions BTS software is distributed among three major units (see Figure 4--1): The DRX unit is designed to transmit and receive (modulate and demodulate) and manage TDMA frames on the radio channel. The CBCF manages its slave units: • CPCMI, RECAL, or DRX, CC8 The TIL unit is used for in--factory testing of the BTS, and to configure, control, and supervise the BTS on site. The following terms are used in this chapter: BIST: Basic hardware self--test programs of a BTS subsystem subassembly. These tests validate a subassembly intrinsically, without disturbing the other subassemblies. An example is the AMNU BIST, which tests the components (such as memory) of the AMNU unit on the DRX logical board. Self--tests: Global, functional test programs, which use several subassemblies in order to validate an assembly (such as the DRX). These tests can be broken down into tests of more or less elementary functions. This may require external equipment (so the term may be misleading). Downloading: A process which consists of installing, in the DRX (logical part), software from an external entity (terminal, Ethernet network, BSC, etc.). Loading: A process used to load, into the subassemblies of the DRX (logical part), the software it requires for its nominal operation. 4.2.1 DRX software functions The DRX is downloaded by the BSC, configured and supervised by the BSC and the CMCF (CBCF) through a LAPD link and a serial link. It serves as a gateway between the radio channel and the BSC. It handles both signaling and voice for all the logical channels carried by a given TDMA frame. The module has four functions: The AMNU (LAPDm, L3 RSL, L3 O&M) is the DRXs management unit. The SPU is a gateway between the radio network and the BSC. TX and RX manage radio transmission and transmission. The BDT manages the GSM TIME. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Software descrIption 4--4 Nortel Networks Confidential TIL ABIS OS KERNEL O&M KERNEL CBCF OS specific (BSP) O&M specific DRX Group of slave managers Group of slave equipment Figure 4--1 CPCMI RECAL Software functions (with CBCF) PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Software descrIption 4--5 L3 O&M AMNU This software unit centralizes the operating and maintenance functions: initialitization and monitoring of BISTs connection with Abis and BCF downloading and software marking configuration defense and alarms tool functions transmission of GSM TIME to BDT, and of O&M to TX L3 RSL This software unit represents the Radio Resource (RR) and the radio measurements function (L1M) in the BTS: radio link layer management dedicated channel management common channel management TRX management error handling measurement collecting measurement pre--processing (for power control by the BTS, and for call clearing and handover decision for the BSC) LAPDm This software unit provides the LAPDm radio level 2 protocol with the mobile. SPU This software unit enables the level 1 radio communication with the mobile to transmit and receive: gateway between radio and terrestrial network (Abis) for the traffic channel multiplexing and demultiplexing of the logical channels on physical channels RX This software unit provides the radioelectrical reception function. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 4--6 Software descrIption Nortel Networks Confidential L3 TX This software unit manages and monitors radio transmission. It is installed in each DRX board. It sets the transmitter operation mode, defines the FH bus input from which the TX should read data, and defines the transmission power to be used. It also controls the Power Amplifier (PA). L1 BDT This software unit extracts the GSM TIME carried on the PCMp (GSM TIME TS) for the BDT unit. LAPD This software unit manages the LAPD link level 2 protocol on PCM between DRX, e--DRX, DRX--ND3 and BSC. 4.2.1.1 Network ID With the implementation of V15.0, the BTS detects the type of DRX and PA during connection with respect to the BCF and the DRX. Note the following restrictions: If a DRX is not yet connected to the BCF, its type is set to “DRX type” until it is connected. If a PA is not yet connected to the DRX, its type is set to “PA type” until it is connected. If a fault beginning has been sent on the DRX type (or PA type) of equipment, because the real equipment type was unknown, the fault ending must be sent on a DRX or PA type, even if the DRX or PA have connected themselves between the fault begin and fault end. 4.2.1.2 Defense The DRX board carries out no defense actions by itself. PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 4.2.2 Software descrIption 4--7 CBCF software functions CBCF Software is based on a COAM software architecture, which is composed of three main parts: common software for various BTS products • OS Kernel • O&M Kernel BTS--specific software dedicated to a BTS product • OS--specific • O&M--specific slave managers The COAM architecture is shown in Figure 4--2. The CBCF software manages the following O&M functions: PCM management configuration and supervision management software management synchronization management test management duplex management Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual Software descrIption 4--8 Nortel Networks Confidential BSC Layer 2 Layer 3 access O&M kernel Software management Abis management Interlayer CBCF Equipment manager Connection manager Radio resource manager Synchro manager Slave managers DRX manager CPCMI manager RECAL manager CBCF Layer 3 access Layer 2 DRX equipment Figure 4--2 CPCMI equipment RECAL equipment COAM architecture on the CBCF PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential 4.2.2.1 Software descrIption 4--9 PCM Management This function selects one of the incoming PCMs for communication with the BSC. It then routes PCM TSs to the appropriate equipment in the BTS as the BSC requests. Other PCM TSs are routed toward another PCM to allow drop & insert functionality. This function also ensures LAPD concentration. 4.2.2.2 Configuration and supervision management This function translates the OML A--bis model into a physical model to offer a standardized configuration and supervision to the BSC. The CBCF acts as an A--bis front end toward the BSC for configuration and supervision purposes. It is the only link for configuration messages coming from the BSC. The CBCF uses the CBCF/ DRX protocol to drive any actions concerning the DRX. 4.2.2.3 Software management The CBCF performs software management for the BTS and provides the only link for downloading messages from the BSC. When a RECAL or CPCMI board is downloaded, the CBCF/Slave protocol is used. 4.2.2.4 Synchronization management The CBCF builds the GSM time and provides it to the DRX, e--DRX, or DRX--ND3 via a TS or a private PCM. External PCMs ensure long term stability. 4.2.2.5 Test Management The CBCF coordinates all BTS tests. When an installation or maintenance action affects a DRX, the DRX is driven by the CBCF using the CBCF/DRX Protocol. 4.2.2.6 Duplex Management The COAM software manages a cold and hot duplex modes. 4.2.3 Maintenance The three types of customers include: EDGE customer: function is necessary, because EDGE equipment must be differentiated from non--EDGE equipment. An e--DRX must be replaced by an e--DRX. An HePA must be replaced by an HePA. Customer who uses an HePA or an e--HePA mixed cell in concentric cell: an HePA must be replaced by an HePA, and an e--PA must be replaced by an e--PA. A CMCF phase 2 must be replaced by a CMCF phase 2. Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 4--10 Software descrIption Nortel Networks Confidential Other customer: an e--DRX or a DRX ND3 can replace a failing DRX, an e--PA (or an HePA) can replace a PA, if the number of the (H)(e)PA in the BTS respects the HePA supported configurations. A CMCF phase 1 can replace a CMCF phase 2 (and vice versa), if the CMCF software is compatible with CMCF phase 1. No mixing between phase 1 and phase 2. 4.2.4 TIL software functions TIL is an application running on a PC in the WINDOWS 95 and WINDOWS 2000 environment. The TIL application is connected to the CBCF through an ethernet connection. The TIL is designed to do the following: validate the BTS in the factory install the BTS site perform diagnostics of hardware problems check equipment substitution check the equipment extension within a cabinet Ethernet This unit is installed in the PC. It provides the level 1 and 2 communication layer. Level 1 is a hardware driver. The level 2 protocol is an LAPD UI frame. TCP--IP Protocol is used. L3 TIL This software unit manages all the boards of the BTS by establishment of a network with all the GSM entities of the BTS. It integrates the factory and installation test environment. The TIL takes the following testing into consideration: the conformity of the cabinet configuration the validity of the data links the external BTS PCM the connectors in the cabinet for cabinet extensions PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Nortel Networks Confidential Dimensioning rules 5--1 DIMENSIONING RULES For information on dimensioning, refer to document GSM/GPRS/EDGE BSS Engineering Rules (PE/DCL/DD/0138). Copyright © 2002--2005 Nortel Networks S12000 BTS Reference Manual 5--2 Dimensioning rules Nortel Networks Confidential PAGE INTENTIONALLY LEFT BLANK PE/DCL/DD/0142 411--9001--142 Standard 15.102/EN May 2005 Copyright © 2002--2005 Nortel Networks Wireless Service Provider Solutions S12000 BTS Reference Manual Copyright © 2002--2005 Nortel Networks, All Rights Reserved NORTEL NETWORKS CONFIDENTIAL: The information contained in this document is the property of Nortel Networks. Except as specifically authorized in writing by Nortel Networks, the holder of this document shall keep the information contained herein confidential and shall protect same in whole or in part from disclosure and dissemination to third parties and use for evaluation, operation and maintenance purposes only. You may not reproduce, represent, or download through any means, the information contained herein in any way or in any form without prior written consent of Nortel Networks. The following are trademarks of Nortel Networks: *NORTEL NETWORKS, the NORTEL NETWORKS corporate logo, the NORTEL Globemark, UNIFIED NETWORKS, S2000, S4000, S8000. GSM is a trademark of France Telecom. All other brand and product names are trademarks or registered trademarks of their respective holders. Publication Reference PE/DCL/DD/0142 411--9001--142 15.102/EN May 2005 Originated in France For more information, please contact: For all countries, except USA: Documentation Department Parc d’activité de Magny--Chateaufort CHATEAUFORT 78928 YVELINES CEDEX 9 FRANCE Email : gsmntp@nortelnetworks.com Fax : (33) (1) 39--44--50--29 In the USA: 2221 Lakeside Boulevard Richardson TX 75082 USA Tel: 1--800--4 NORTEL 1--800--466--7838 or (972) 684--5935 Internet Address: http://www.nortelnetworks.com
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