Celletra CBPABMONGXNA55 PCS Beamer Array User Manual SBnnnn Hardware and Setup Guide

Download:
Mirror Download [FCC.gov]
Document ID	153159
Application ID	mBTOssS0lAcrAFmas217Vg==
Document Description	Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	81.06kB (1013250 bits)
Date Submitted	2001-06-05 00:00:00
Date Available	2001-06-01 00:00:00
Creation Date	2001-05-27 13:46:42
Producing Software	Acrobat Distiller 4.05 for Windows
Document Lastmod	2001-05-29 14:44:22
Document Title	SBnnnn Hardware and Setup Guide
Document Creator	Microsoft Word 9.0
Document Author:	Rich Yaffe

P.O. Box 106, Tavor building 1,
Yoqne'am Ilit 20692, ISRAEL
Tel. + 972 4 9592522
Fax. + 972 4 9592523
E-mail: celletra@celletra.com
C e l l ul a r Tr a ns mi ssi on S ol ut i ons
BEAMERTM
Active Radiating Module System
PCS Pol BEAMER Rev.3.1 Array System
including
Interface and Control Unit (ICU)
Assembly & Operation Manual
No.913000101
Name
Written By
N.David
Checked
G.Argaman
Approved
M.Shalom
Date
Signature
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000101
Rev.: 1
Page: 1 of 92
FCC Part 15A Complience Statement
This device complies with part 15 of the FCC rules.
Operation is subject to the following two conditions: (1)
this device may not cause harmful interference , and (2)
this device must accept any interference received ,
including interference that may cause undesired operation
Caution
Changes or Modifications not expressly approved by Celletra Ltd.
could void the user’s authority to operate the equipment”
NOTE
This equipment has been tested and found to comply with the limits
for a Class A digital device, pursuant to part 15 of the FCC rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can
radiate Radio Frequency energy and, if not installed and used in
accordance with the instructions manual, may cause harmful
interference to radio communication. Operation of this equipment in
a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own
expense.
PROPRIETARY NOTICE
ALL DATA AND INFORMATION CONTAINED IN OR DISCLOSED BY THIS
DOCUMENT IS CONFIDENTIAL AND PROPRIETARY INFORMATION OF
CELLETRA LTD AND ALL RIGHTS THEREIN ARE EXPRESSLY
RESERVED.
BY ACCEPTING THIS MATERIAL, THE RECIPIENT
AGREES THAT THIS MATERIAL AND THE INFORMATION CONTAINED
THEREIN IS HELD IN CONFIDENCE AND IN TRUST AND WILL NOT BE
USED, COPIED, REPRODUCED IN WHOLE OR IN PART.
NOR ITS
CONTENTS REVEALED IN ANY MANNER TO OTHERS, WITHOUT THE
EXPLICIT WRITTEN PERMISSION OF CELLETRA
LTD.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000101
Rev.: 1
Page: 2 of 92
Revision
Description
Date
Release
May, 2000
FCC part 15 statemnet & power level modification
May 2001
Changes are periodically made to the information contained in this manual. These changes are published in the
"software/hardware release notes", and will be incorporated into new editions. All rights are reserved. No parts of
this manual may be reproduced in any form, without permission in writing from Celletra Ltd.
Copyright© 1999, 2000 Celletra Ltd.
BEAMER is a trademark of Celletra Ltd.
Celletra Ltd. reserves the right to change specifications without notice.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000101
Rev.: 1
Page: 3 of 92
CONTENTS
CONTENTS
FIGURES
TABLES
1.
INTRODUCTION
13
1.1.
Acronyms and Abbreviations
13
1.2.
1.2.1.
BEAMER Array System Overview
BEAMER Family Modular Concept........................................................................................ 15
14
1.3.
1.3.1.
1.3.2.
1.3.3.
1.3.4.
Overview of the Interface and Control Unit (ICU)
Interface and Control Unit - ICU ............................................................................................. 16
ICU Controller Description ..................................................................................................... 17
RF Path Description................................................................................................................. 19
Bias-T Types............................................................................................................................ 19
16
1.4.
1.4.1.
Communication with BEAMER and PC
Network Architecture and Capacity......................................................................................... 20
20
1.5.
1.5.1.
Communication Procedure
BEAMER Monitoring and Control.......................................................................................... 20
20
1.6.
DC Distribution
21
1.7.
Maintainability Requirements
22
INSTALLATION GUIDE
23
2.
2.1.
Applicable Documents
23
2.2.
Scope
23
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000000
Rev.: 00
Page: 4 of 92
CONTENTS
2.3.
2.3.1.
2.3.2.
Important Safety Precautions
Handling and Moving the BEAMER Array............................................................................. 24
System Measurement and Testing Conditions ......................................................................... 25
23
2.4.
2.4.1.
2.4.2.
2.4.3.
2.4.4.
ICU Operation Instructions
DC Connections and Fuse Replacement .................................................................................. 25
Connecting the Unit to a Host PC or BTS Controller .............................................................. 27
Replacing the Back-Up Battery................................................................................................ 28
Bias-Ts 29
25
2.5.
Array Installation
30
2.6.
2.6.1.
2.6.2.
2.6.3.
2.6.4.
2.6.5.
Assembly Instructions for the PCS 1x4x4 Array
Mounting Assembly (Figure 12): ............................................................................................. 30
BEAMER Array Mounting (Figures 13 and 14):.................................................................... 30
BEAMER Array Dismounting (Figures 13 and 14):................................................................ 31
BEAMER Dismounting (Figure 15): ....................................................................................... 31
BEAMER Mounting (Figure 15 and 16).................................................................................. 31
30
2.7.
PCS 1x8x8 Array Assembly Instructions
36
2.8.
2.8.1.
2.8.2.
2.8.3.
2.8.4.
2.8.5.
2.8.6.
Beamer System Setup
System Block Diagram............................................................................................................. 39
Logical Addresses and System Components............................................................................ 41
System Configuration and Setting............................................................................................ 42
Setting the Bias-T Attenuation................................................................................................. 45
Calibrating the Transmit Channel Gain.................................................................................... 49
Calibrating the Receive Channel Gain ..................................................................................... 52
39
2.9.
2.9.1.
2.9.2.
2.9.3.
2.9.4.
BEAMER System Sector Array Installation Record
Installed BEAMER Modules ................................................................................................... 54
RF Cable Loss.......................................................................................................................... 54
Tx Channel............................................................................................................................... 54
Rx Channels ............................................................................................................................. 54
54
2.10.
Test Procedure for Measuring the Rx Gain Balance
55
2.11.
2.11.1.
2.11.2.
2.11.3.
Smart-Terminal Program Description
Program Installation................................................................................................................. 56
Running the Program ............................................................................................................... 56
Entering and Editing a Command ............................................................................................ 58
56
3.
BSM (BEAMER SYSTEM MANAGER) PROGRAM
61
3.1.
Functions
61
3.2.
3.2.1.
3.2.2.
Requirements for Operation
Hardware 61
Software 61
61
3.3.
3.3.1.
3.3.2.
User Interface Description
Main Menu - Active Radiating Module System Manager........................................................ 62
System Menu List..................................................................................................................... 62
62
3.4.
3.4.1.
Status Reports
Report by Visual Monitoring LEDs ......................................................................................... 63
63
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 5 of 92
CONTENTS
3.4.2.
3.4.3.
Report by Sending Messages (Monitoring) ............................................................................. 63
BEAMER Array System Control............................................................................................. 63
3.5.
3.5.1.
3.5.2.
BSM S/W
S/W Installation ....................................................................................................................... 64
S/W Operation ......................................................................................................................... 64
64
3.6.
BSM Main Screen
64
3.7.
Comm Port Selection
65
3.8.
Password Entering
65
3.9.
Host Selection
65
3.10.
Installation of ICU in System
66
3.11.
Failure Conditions Selection
66
3.12.
BEAMER Limits Definition
67
3.13.
Shut Down Conditions Enable/Disable
67
3.14.
ICU Limits Definition
68
3.15.
System Definition
68
3.16.
Sub-Array and BEAMER Setting
69
3.17.
Sub Array Setting
70
3.18.
BEAMER Installation
71
3.19.
Column and Row Definition
72
3.20.
Sub-Array Status and Attenuator Setting
73
3.21.
Control & BEAMER Setting
73
3.22.
BEAMER Control
74
3.23.
ICU Status
75
3.24.
ICU CTRLR Status
75
3.25.
ICU Properties
76
4.
SOFTWARE DOWNLOAD GUIDE
77
4.1.
Introduction
77
4.2.
4.2.1.
4.2.2.
Overview
Downloading Software to the ICU........................................................................................... 77
Downloading Software to the BEAMER ................................................................................. 79
77
4.3.
User Interface for SW Download
80
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000000
Rev.: 00
Page: 6 of 92
CONTENTS
4.3.1.
4.3.2.
4.3.3.
4.3.4.
Functions 80
Requirements for Operation..................................................................................................... 80
User Interface Installation ........................................................................................................ 80
User Interface Operation.......................................................................................................... 80
4.4.
4.4.1.
4.4.2.
4.4.3.
4.4.4.
4.4.5.
4.4.6.
4.4.7.
User Interface Description
System Field............................................................................................................................. 81
Authorization Field .................................................................................................................. 81
System Date and Time Field .................................................................................................... 81
ICU SW Properties Field ......................................................................................................... 81
Destination Field ...................................................................................................................... 82
Setting Menu............................................................................................................................ 82
Password Menu........................................................................................................................ 84
81
4.5.
4.5.1.
Program Loading Procedure
Procedure for Loading Program to the ICU ............................................................................. 84
84
4.6.
Procedure for Loading Program to the BEAMER
86
WARRANTY
INDEX
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 7 of 92
FIGURES
Figure 1: BEAMER (PCS band) with beam shaping wings
14
Figure 2: BEAMER block diagram
15
Figure 3: BEAMER family modular concept
16
Figure 4: ICU block diagram
18
Figure 5: Active Bias-T block diagrams
19
Figure 6: Communication procedure
21
Figure 7: BEAMER 4X4X1 Pol. BEAMER array - front view
24
Figure 8: DC wiring
26
Figure 9: Fuse and backup battery location
26
Figure 10: Serial communication ports and on-board jumper locations
28
Figure 11: Bias-T inputs / outputs and numbering
29
Figure 12: Mounting Assembly.
32
Figure 13: BEAMER Array Mounting/Dismounting(Lower fork)
33
Figure 14: BEAMER Array Mounting/Dismounting (Upper fork)
34
Figure 15: BEAMER dismounting
35
Figure 16: Mounting Assy.
37
Figure 17: Bottom Array
38
Figure 18: Top Array
39
Figure 19: Beamer single pol. – sector connections block diagram
40
Figure 20: Beamer system entities and their logical relationships
41
Figure 21: Tx link budget example
50
Figure 22: Rx chanel gain distribution example
52
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000000
Rev.: 00
Page: 9 of 92
FIGURES
Figure 23:Measuring the received
55
Figure 24: Smart Terminal 2 window
57
Figure 25: Entering and editing a command
58
Figure 26: Using scripts
59
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 10 of 92
TABLES
Table 1: RS485 and RS232 communication connectors
27
Table 2: BEAMER system logical addresses range
42
Table 3: ICU - BEAMER default values and quick reference
43
Table 4: BEAMER limits recommended settings
47
Table 5: ICU limits setting
48
Table 6: Failure conditions
48
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000000
Rev.: 00
Page: 11 of 92
1.
INTRODUCTION
This document is a guide to the Installation, operation and maintenance of the integrated Interface and
Control Unit (ICU) and the BEAMERTM Active Radiating Module System.
1.1. Acronyms and Abbreviations
ACPR
Adjacent Channel Power Ratio
BEAMER™
Active Radiating Module
ATP
Acceptance Tests Procedure
BFN
Beam Forming Network
BPF
Band Pass Filter
BTS
Base Transceiver Station
BW
Band Width
CDMA
Code Division Multiple Access
DCA
Digitally Controlled Attenuator
EMI
Electro Magnetic Interference
FSK
Frequency Shift Keying
ICU
Interface & Control Unit
IM
Inter Modulation
LED
Light Emitting Diode
LSB
Least Significant Bit
M&C
Monitoring and Control
MSB
Most Significant Bit
MTBF
Mean Time Between Failures
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000000
Rev.: 00
Page: 13 of 92
INTRODUCTION
MTTR
Mean Time To Repair
PCB
Printed Circuit Board
PCS
Personal Communications Services
RF
Radio Frequency
RFI
Radio Frequency Interference
Rx
Receiver
TBD
To Be Defined
TDMA
Time Division Multiple Access
Tx
Transmitter
VSWR
Voltage Standing Wave Ratio
1.2.
BEAMER Array System Overview
The BEAMER is an integrated active antenna for wireless communications. It incorporates a
transmission amplifier, transmission band filter, transmission elemental antenna, and the respective
receive chain: elemental antenna, band filter, and LNA.
The Tx amplifier is linearized. The Rx amplifier has an exceptional linear dynamic range. The
integral unit contains its own power conditioner and a monitoring and control circuit that
communicates with the BTS. The whole unit is sealed and built as a plug-in replaceable unit. The
design and production techniques offer low price and high reliability.
The BEAMER replaces the PA in the BTS. It circumvents the loss in the transmit chain - duplexer,
cable, antenna corporate feed or beam forming network – which typically amounts to 4 to 8 dB. A
column of 4 to 8 BEAMER units replaces the sector antenna. The reliability and the redundancy in the
array offer a major gain in life-cycle cost.
Figure 1: BEAMER (PCS band) with beam shaping wings
Dimensions: 70x140x160 mm
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 14 of 92
INTRODUCTION
PA
LNA
Band filter
Band filter
MicroController
Power
conditioner
Figure 2: BEAMER block diagram
The antenna elements of the Tx and Rx channels are vertically and/or ± 45° slant polarized. The
separation between the receive and transmit antenna elements, and the resulting 20 dB of isolation,
enables the use of two separate band pass filters in front of the antenna elements instead of having to
use a much more complex diplexer structure.
The band pass filters (BPF) supply enough Tx/Rx channel isolation to ensure that the small amount of
Tx signal power and Tx wide band noise power leaking into the sensitive receive channel will not
degrade the Rx channel performance.
The Rx amplifier is a low noise amplifier with a high enough intercept point that several cellular
channels received simultaneously should not degrade each other's performance. The low noise and
high gain performance of this amplifier compensate for the high losses of the coaxial cable going
down from the Rx BEAMER front-end to the base station. The Tx Amplifier is a power amplifier that
enables up to 2 Watts average at the Tx antenna element of the BEAMER while compensating for
gain and power losses in the coaxial cable coming up from the base station.
1.2.1.
BEAMER Family Modular Concept
The BEAMER family of products is modular. Each member can be attached to other modules to
establish a new product, matched to specific customer requirements. This concept is illustrated in the
following figure.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 15 of 92
INTRODUCTION
single BEAMERTM vs. Multi- BEAMERTM High Gain Antennas
Tx Cable or Fiber
BEAMER
to Base Station
single
BEAMER
Rx Cable or Fiber
CATV or
FIBER
Converters
(optional)
CATV or
FIBER
Converters
(optional)
BEAMER
BEAMER
Tx Cable or Fiber
to Base Station
Rx Cable or Fiber
BEAMER
Multi BEAMER
High Gain
Antenna
Array
BEAMER
Corporate
Feed
Figure 3: BEAMER family modular concept
The BEAMER can be used as a standalone antenna element for distributed antenna purposes or
stacked to form an antenna array. The BEAMER and the BEAMER Array can be either connected
with a pair of coaxial cables to a modified base station or converted to match existing CATV
infrastructure or fiber optic infrastructure.
1.3. Overview of the Interface and Control Unit (ICU)
The BEAMER system consists of two parts:
•
BEAMER Active Radiating Module Array System
•
ICU (Interface and Control Unit) - the interface between the BTS (Base Transceiver Station) and
the BEAMER.
1.3.1.
Interface and Control Unit - ICU
The ICU interfaces between the BEAMER system and the BTS, provides the BEAMER system with
the DC power, and controls each individual BEAMER within any array. It consists of a set of Bias T
connections for multiplexing the DC power and the monitoring and control communication on the RF
cables to the BEAMER system, a modem for communicating with each of the BEAMER units, and a
digital processor/controller.
The ICU interfaces to the Tx and Rx RF connections in the BTS, to the Alarm concentrating unit in
the BTS, and has serial ports for a local host computer, for remote control, and for diagnostics. A set
of indicator lights visually reports the status of each BEAMER Array. The ICU can be remote
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 16 of 92
INTRODUCTION
controlled through an internal modem connected to a phone line and a remote host computer. The
Active Bias-Ts in the ICU enable setting the proper input power for the BEAMER and maintaining
beam shaping using the DCA inside the Active Bias-Ts. Up to 12 ACBTs , in any mixture of Rx and
Tx types can be assembled in each ICU
1.3.2.
ICU Controller Description
The controller controls the proper operation of the BEAMER circuits and enables real-time bidirectional communication between individual BEAMER units and the Base Station central computer
or dedicated computer, via the ICU. Up to 16 BEAMER modules can be monitored and controlled by
each ICU unit.
Bi-directional communication with the BEAMER is established through an FSK modulated
communication channel multiplexed on the Rx coaxial cable connecting the individual BEAMER, to
the ICU within the base station. The coaxial cable can be as long as 100 meters and have losses of up
to 10db at 1850-1990MHz band.
The Rx signal at 1850-1910 MHz runs on the same cable with DC and the M&C, but an isolation
between the DC, M&C, and Rx signals is high due to Bias-T isolation.
The Tx signal at 1930-1990 MHz runs on the same cable together with the DC voltage, but isolation
between the DC voltage and Tx signals is high due to Bias-T isolation.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 17 of 92
INTRODUCTION
Title: BEAMER Array System
Assembly and Operation Manual
Array
#1
Tx-o
ut
Array
#2
Tx-i
Rx-i
Rx-o
ut
Tx-o
ut
F3
Tx-i
Array
#4
Rx-i
Tx
bias T
#3
F5
F4
Array
#5
Tx-o
ut
Rx-o
ut
Rx
bias T
#4
Array
#6
Tx-i
Tx-o
ut
Rx-o
ut
Array
#8
Tx-i
Tx
bias T
#7
Rx
bias T
#6
Tx
bias T
#5
F6
Rx-i
Array
#7
F7
Rx-i
Tx-o
ut
Rx-o
ut
Array
#10
Tx-i
F10
Rx-i
Array
#11
Rx-o
ut
Tx-o
ut
Rx
bias T
#10
Tx
bias T
#9
Rx
bias T
#8
F9
F8
Array
#9
Tx-i
Rx-i
Rx-o
ut
Fan
Rx
bias T
#12
Tx
bias T
#11
F16
F11
Array
#12
DC Power
Switch
F17
F1
24-28VDC
from
Power Supply
J-4
Return
sense
CTRL Rx/Tx
CTRL DCA
sense CTRL DCA
sense
sense
CTRL Rx/Tx
CTRL Rx/Tx
CTRL DCA
CTRL DCA
CTRL DCA
CTRL DCA
sense
sense
sense
CTRL DCA
CTRL Rx/Tx
CTRL DCA
sense
sense
CTRL Rx/Tx
CTRL DCA
CTRL DCA
sense
CTRL Rx/Tx
sense
CTRL DCA
CTRL DCA
sense
J-2
RS-485/RS-232
port
controller
J-3
To alarm
concentrating
unit
MODEM
Rev.: 00
Figure 4: ICU block diagram
Proprietary Information
Doc. No.: 913000100
Rx
bias T
#2
Tx
bias T
#1
F2
Array
#3
I/O Card
Page: 18 of 92
J-5
Array1 Array2 Array3 Array4 Array5 Array6 Array7 Array8 Array9Array10 Array11 Array12
Array status
indications
Tx
Com.
Rx
CPU
RUN
POWER
ON
serial ports to
host
computer
J-1
Modem
Interface
INTRODUCTION
1.3.3.
1.3.3.1.
RF Path Description
Tx/Rx Active Bias-T Block Diagram
The Active Bias-T contents a boost amplifier and a digital controlled attenuator in order to adjust the
gain and enable a convenient interface to the BTS. The gain of the ABT assemblies is Temperature
Compensated. Block diagrams for this ABT are shown the following figure.
Tx Active Bias-T Block
GAIN CONTROL
PA
LNA
RF + DC
DUPLEXER
To BEAMER
Array
From BTS
Tx Output
REGULATION
+PROTECT
PA
+8V
to Rx CURRENT
GAIN CONTROL
DC Supply
INDICATOR
Rx Amp
Current +8V
Indicator from Tx
REGULATION
+PROTECT
GAIN
CONTROL
M&C Port
To BTS
Rx Input
DUPLEXER
RF + M&C
P.A
From
BEAMER
Array
GAIN CONTROL
Rx Active Bias-T Block
Figure 5: Active Bias-T block diagrams
1.3.4.
Bias-T Types
The ICU is equipped with Rx ACBs and Tx ACBs. The Rx ABT can be one of several types, which
differ in the available gain from –4 db to +28db
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 19 of 92
INTRODUCTION
1.4. Communication with BEAMER and PC
1.4.1.
Network Architecture and Capacity
The ICU is the master in a star configured network .The network shall enable data transmission along
the following data transmission paths:
1.
ICU to each BEAMER unit of any of 3 Pol BEAMER Arrays
2.
ICU to PC
3.
BEAMER to ICU
The maximum capacity of the network is 16 BEAMER modules in any combinations of arrays.
1.5. Communication Procedure
The communication mode between the ICU, the BEAMER, and the PC is half-duplex. The
communication procedure is described in the following figure:
1.5.1.
BEAMER Monitoring and Control
BEAMER monitoring and control includes the following functions:
•
Detect status of each BEAMER unit installed in a selected array.
•
Receive indications from a selected BEAMER unit
•
Manually control the selected BEAMER, for example, attenuator values and power amplifier
operation.
•
Software downloads into BEAMER through the ICU.
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 20 of 92
INTRODUCTION
PC
BEAMER #1
ICU
BEAMER #2
BEAMER#16
STATUS
SEND DATA
COMMANDS
COMMANDS
STATUS
COMMANDS
STATUS
COMMANDS
STATUS
STATUS
SEND DATA
COMMANDS
Figure 6: Communication procedure
1.6. DC Distribution
The DC supply to outdoor BEAMER arrays is obtained by connecting the DC power supply of the
BTS to the DC connections in the panel of the ICU. The DC voltage is supplied via the Tx and Rx
coaxial cable coming up from the ICU to the BEAMER unit or BEAMER beam forming network.
Power Source
+24VDC to +28VDC
Max. Current Consumption
Up to 450mA with no BEAMER arrays connected
Max. Current per BEAMER
Up to 2Amp.
ICU Connectors
Tx Connector to BEAMER Array
N-type connector, female
Tx Connector to Base Station Tx Port
TNC connector, female
Rx Connector to BEAMER unit
N-type connector, female
Rx connector to Base Station Rx Port
TNC connector, female
Tx Control Connector
9 pin D-type connector
Rx Control Connector
9 pin D-type connector
DC Connector
Molex, 10 PIN, 40A capability connector.
Grounding Connection
By physically mounting the ICU with in the BTS
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 21 of 92
INTRODUCTION
1.7. Maintainability Requirements
The BEAMER family units including the ICU are designed as units for low Mean-Time-To-Repair
(MTTR). The Modular structure of the ICU enables the internal circuits to be easily approached and
replaced if found necessary.
Nevertheless, only an approved laboratory can do a full repair of an ICU or BEAMER unit, since such
a repair requires a full Acceptance testing.
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 22 of 92
2.
INSTALLATION GUIDE
2.1. Applicable Documents
•
PC to ICU Protocol, version No.9450002XX
•
BEAMER to ICU Protocol No.9450003XX
•
BEAMER specifications No.9530003XX
•
ICU specifications, Scope No.9530006XX
This document describes the installation of the BEAMER system, as integrated into Customer’s BTS.
2.2.
Scope
This document describes the installation of the BEAMER System, as integrated into customer’s -BTS.
The BEAMER 1X4X4 Array System is basically a modular tower top LNA and power amplifier, with
programming and modularity features that are uncommon with other, comparable systems. It replace
the entire RF front-end of a PCS BTS and offers controllability and improved performance at reduced
size and cost.
The document details the instructions for programming and field installation of the BEAMER system.
It is intended to be used by customer technical personnel, who are trained to install and service the
BEAMER system.
2.3. Important Safety Precautions
The system is supplied following extensive acceptance production line tests. Usually, lab tests will
not be required before installing the unit at the customer's location. One should always be aware of
the necessary safety precautions, assuring that the BEAMER system will be fully functional after the
installation.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000000
Rev.: 00
Page: 23 of 92
INSTALLATION GUIDE
Read this instruction guide thoroughly before starting with the installation. In case of doubt, do not
hesitate to call Celletra customer support engineering. Celletra support can be reached at the address
appearing at the beginning of this manual.
2.3.1.
Handling and Moving the BEAMER Array
The BEAMER array is a delicate and accurate electrical apparatus.
Use extreme caution when handling the array. Always use the original box, with proper padding,
when delivering or moving the unit. The overall unit weight is ~25kg. If necessary, the array should
be carefully carried by two people, only for a short distance. BEAMER array hardware is hermetically
sealed in controlled environment. Do not open any radome covers or try to disassemble a BEAMER
module. This should be done only by Celletra authorized personnel. Do not paint the unit.
Never use adhesive tape on the radome surface, as this might severely affect the performance. Use
extra caution when installing the unit on tower top. Use proper winch to lift the unit up the tower.
Watch carefully for possible obstacles when lifting the unit. Pad the array, if needed, to avoid possible
damage during lift-up. Never place the array on the front panel, with the radomes facing down, as this
might cause radome breakage. Always place the unit on one of its sides.
Side Walls
Radomes
Figure 7: BEAMER 4X4X1 Pol. BEAMER array - front view
When installing the array always verify that the ICU power is OFF.
If it is not possible to turn the ICU power OFF (for example, when other sectors are connected to it),
remove the fuse connected to the active Bias-Ts serving the installed array. When replacing or reinserting the fuse in the ICU, always turn the ICU power OFF before removing the fuse cover.
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 24 of 92
INSTALLATION GUIDE
2.3.2.
System Measurement and Testing Conditions
Live +24VDC with high current capability exists on the Tx ABT output and the Rx ABT input (all the
N-type connectors at the ICU external RF interface). Use extreme care when handling these ports. It is
strongly recommended to disconnect the DC power to the ICU, whenever possible, before each and
every cable connection to the Tx ABT outputs or the Rx ABT inputs.
Always use a DC block device connected to the measuring equipment input or output ports (spectrum
analyzer, power meter, or RF signal source), when measuring ICU of BEAMER array performance.
Before applying RF power to any port of the system (either ICU or BEAMER array) always turn the
DC power ON. Never apply any RF input power with the unit's DC power OFF.
Do not apply more than +20dBm of RF input power to any RF port of the
BEAMER system, or irreversible damage may occur.
When measuring high power outputs, always verify that the equipment probe is capable for handling
the expected output power.
With DC power ON and the nominal RF input applied, BEAMER -Tx radiators produce 2Watts of RF
power per module, 8 Watts per array, and approximately 150Watts EIRP.
When testing the units in lab or during field installation, always practice RF
radiation safety rules.
During lab tests, with DC voltage applied to the array, do not use any PCS mobile transmitter in a
range of less than 10 meters from the BEAMER array. An unexpectedly high RF power might appear
at the Rx output, which might in turn damage the measuring devices connected to that port.
2.4. ICU Operation Instructions
2.4.1.
2.4.1.1.
DC Connections and Fuse Replacement
DC Wiring
The ICU should be connected to 24±4 VDC power supply. A minimum of 14AWG wires should be
used, for minimal DC voltage drop. The following diagram shows the DC connection to the MOLEX
DC connector. The three wires connected to each pin at the connector should be tied together as close
as possible to the DC voltage source.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 25 of 92
INSTALLATION GUIDE
Ground
Conector view
from outside
Circuit 1
24-28VDC
Figure 8: DC wiring
2.4.1.2.
Fuse Replacement
Fuses are located under the fuse compartment panel on the front panel. To access the fuses, remove
the panel (2 screws). Tx fuse is 20Amp. Rx fuse is 5Amp.
The fuses are aircraft circuit breakers that can be used to turn off a whole sub-array.
Remember to disconnect the RF drive (or to turn the RF drive OFF) before turning the DC power
OFF.
Fuses
Backup
Battery
Figure 9: Fuse and backup battery location
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 26 of 92
INSTALLATION GUIDE
2.4.2.
2.4.2.1.
Connecting the Unit to a Host PC or BTS Controller
Serial Communication Connector
Communication with BTS controller RS232 connector interface is located on the left side of the
MOLEX DC connector on the rear panel. It is a standard 9-pin female D-type connector.
Table 1: RS232 communication connector
Pin #
RS232
2.4.2.2.
NC
Rx Data
Tx Data
NC
Ground
DSR
RTS
CTS
NC
Communication Mode
The communication mode at the ICU controller board is enabled for RS232 by the communication
switch is SW1at OFF position. Four switches are located on this SW1, used for other ICU settings.
Caution: The user should not change the setting of these switches, unless
specifically advised by Celletra. An unauthorized, uncontrolled change of these
switches might produce unpredictable system behavior.
The RS232/RS485 DIP switch is the last switch at the far-left side of the PCB, when viewed from the
ICU front, as shown in the following figure.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 27 of 92
INSTALLATION GUIDE
Jumpers
Figure 10: Serial communication ports and on-board jumper locations
It is possible to communicate with the unit via the RS485, using a commercial RS485-RS232
converter. As an example, ADAM-4520 from Advantech can be used for this purpose.
2.4.3.
Replacing the Back-Up Battery
The ICU controller board is equipped with 3Volt battery, used for NVRAM and real-time clock keepalive function. Under normal operating conditions, this battery should be replaced every three years.
Failure to replace the battery will result in loss of the configuration data and the real-time clock
setting, following power down. Although this is not critical, we recommend changing the battery once
every 2 years, or at every scheduled maintenance.
Before changing the battery, record the ICU configuration. We recommend creating a batch file,
within the BTS controller software, to reload the original ICU configuration after battery replacement.
To access the battery, turn off the ICU. Remove the ICU front cover. The battery opening is located
on the left side panel under the RS-232 connector. Use a small screwdriver to carefully push the
battery out. Insert a 3Volt, CR2032 type Lithium battery. The + side of the battery should be pointing
to the side panel. Reinstall the front cover.
It is possible to replace the battery under live DC voltage applied to the ICU, if one does not wish to
interrupt the BTS operation, even during scheduled maintenance. In this case, you should use extreme
care not to short the ICU controller circuitry.
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 28 of 92
INSTALLATION GUIDE
2.4.4.
Bias-Ts
In this manual, Bias-Ts are also termed 'sub-array', since each Bias-T can serves an independent
portion of an array (i.e., Tx sub-array or Rx1 and Rx2 sub-arrays, which are all physically part of the
same array, but are logically independent entities).
The Bias-Ts serve four purposes:
1.
Supply DC voltage to the BEAMER modules within the sub-array.
2.
Provide DCA controlled RF amplification stage, to overcome possible RF distribution losses
and to provide control on the transmitted or received output power per sub-array.
3.
Connect the BEAMER modules Telemetry to the ICU controller via the superimposed FSK
link.
4.
Enable the S/W downloading to each BEAMER of the array using the Telemetry channel.
The sub-array direction of the ICU Bias-T connector is N-type connector, capable of supporting the
DC current to the sub-array. The BTS side is TNC type connector. The following figure shows the
active Bias-T location on the ICU.
Figure 11: Bias-T inputs / outputs and numbering
Viewed from right to left, the Bias-Ts are organized as:
[Rx1-Rx2-Tx], [Rx1-Rx2-Tx], [Rx1-Rx2-Tx], [Rx1-Rx2-Tx]
Bias-T number 1 is on the far right going to Bias-T number 12 at the near left. These (physical)
numbers also serve as logical addresses for the Bias-T (sub-arrays) at the system setup.
In case less arrays are integrated in the system, the number of Bias-Ts will be reduced.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 29 of 92
INSTALLATION GUIDE
2.5.
Array Installation
The BEAMER array provides coverage of ±45° for the azimuth, ±7° for the elevation at –3dB points.
A mechanical tilt, continuous up to 15° is provided. We recommend using a 3-4 inch diameter pole
for the array installation. The figures later in this section illustrate the installed array with the doors
open, showing the Tx and Rx cables connections.
The unit should be connected to the main RF cables feeding the array. The RF lines should have total
RF loss of less than 8 dB and a DC resistance lower than 0.2 Ohms, for 50 meters long cable. 3/8” or
1/2" or 5/8" cable can be used. When connecting these cables to the array on one side and to the ICU
on the other, use proper moisture sealing methods, if required depending on the connector type used.
Sealing and weatherproofing of RF connector is of prime importance to assure good electrical contact,
minimizing DC loss and passive RF inter-modulation effects. Thus, special care should be taken with
the RF connectors sealing and weatherproofing especially at the array input connectors that are
exposed to extreme environmental conditions. Common sealing practice should be used.
For sealing instructions, refer, for example, to Andrews weatherproofing recommendations with
3MTM Cold ShrinkTM Weatherproofing Kit, or an equivalent sealing method.
Before installing the BEAMER array, note that each array has a Tag attached to it. After installation
remove the tag and keep it. This tag carries the BEAMER modules address and location within the
array.(This address is the serial number of each BEAMER unit as appear on the module label nearby
the Rx connector).You will need these IDs later, for system configuration setup.
2.6.
Assembly Instructions for the PCS 1x4x4 Array
2.6.1.
Mounting Assembly (Figure 12):
1.
Mount the securing clamps (4) on the pole (1) at the location approx. close to the bottom side
mounting assembly. Tighten the screws using 9/16 wrench.
2.
Mount the mounting assembly on the pole (1) and secure the two clamps (2) with the wing nuts
(3). Tighten the four wing nuts (3) using 9/16 wrench.
3.
Adjust azimuth:
4.
One.
Loosen the 4 wing nuts (3) and rotate till you have reached the required azimuth.
Two.
Tighten the 4 nuts (3).
Adjust elevation:
One.
Loosen the 6 bolts (6) (on both sides of the mounting assembly).
Two.
Release the latch (5) and adjust the tilt. Once the tilt is set, lock in position using the
latch (5).
Three.
2.6.2.
1.
Tighten the bolts (6).
BEAMER Array Mounting (Figures 13 and 14):
While the BEAMER array is hanging by the lifting hook (7) put the BEAMER array on the
lower fork (8) of the mounting assembly.
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 30 of 92
INSTALLATION GUIDE
2.
Push the upper section of the BEAMER array until its upper bolts engage the upper forks (9) of
the mounting assembly and secure them with the lever (9).
3.
Tighten the 4 wing nuts (X) using 9/16 wrench.
4.
Connect the Rx1, Rx2, Tx and grounding cables (10-13).
2.6.3.
BEAMER Array Dismounting (Figures 13 and 14):
1.
Insert the winch cable hook through the bracket(7) located on top of the array.
2.
Disconnect the Rx1, Rx2, Tx and grounding cables.
3.
Release the 4 wing nuts |(X).
One.
Release the module from its upper forks (9’) by pushing the lever (9) and rotating the
array approx. 30 deg. downward around the lower forks (8).
4.
Remove the array by lifting it and pulling it out from the lower forks (8).
2.6.4.
BEAMER Dismounting (Figure 15):
1.
Release 2 wing nuts (14), rotate the BEAMER assembly until it stops with a “click” latch.
2.
Open the right hand door by releasing 2 thumb screws (15).
3.
Dismount the BEAMER by disconnecting its Rx and Tx connectors, then insert a Phillips
screwdriver (#6x300 mm) through holes “H” to engage the screws (6 captive screws for each
BEAMER).
4.
Dismount BEAMER “A” by first dismounting the lower roof (RL) by removing 6 screws (4-40
UNC Phillips flat 100 deg.). Dismount BEAMER “D” by first dismounting the upper roof (RU)
and the lifting hook (7) by removing 6 screws (4-40 UNC Phillips flat 100 deg.). BEAMERs
“B” and “C” can be dismounted directly.
2.6.5.
BEAMER Mounting (Figure 15 and 16)
1.
To mount BEAMER “A”, the lower roof (RL) should be dismounted. Engage the BEAMER
“A” in place and secure its 6 captive screws with the long screw driver (Phillips #6 x300 mm),
mount the lower roof (RL) and secure it with 6 screws (4-40 UNC Phillips flat 100 deg.),
connect the Rx and Tx connectors.
2.
BEAMERs “B” and “C” can be mounted directly by using the long screw driver. Connect the
Rx and Tx connectors.
3.
To mount BEAMER “D”, the upper roof (RU) and the lifting hook (7) should be dismounted.
Engage BEAMER “D” in place and secure its 6 captive screws with the long screw drivers. Put
the lifting hook (7) in place then mount the upper roof (RU) and secure it with 6 screws (4-40
UNC Philips flat 100 deg.), Connect the Rx and Tx connectors.
4.
After the BEAMERs are secured in place, close the right hand door by securing the thumb
screws (15).
5.
Release the BEAMER assembly. By pushing button (16) (Fig. No. 16) downward, rotate the
array and secure the wing nuts (14) in place.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 31 of 92
INSTALLATION GUIDE
Figure 12: Mounting Assembly.
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 32 of 92
INSTALLATION GUIDE
Figure 13: BEAMER Array Mounting/Dismounting (Lower fork)
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 33 of 92
INSTALLATION GUIDE
Figure 14: BEAMER Array Mounting/Dismounting (Upper fork)
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 34 of 92
INSTALLATION GUIDE
Figure 15: BEAMER dismounting
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 35 of 92
INSTALLATION GUIDE
2.7.
PCS 1x8x8 Array Assembly Instructions
1. Mount the securing clamps (12) on the pole (1) at the location approx. close to the
bottom side of the mounting assy. Tighten the wing nuts using 9/16 wrench
2. Mount the Mounting assy. On the pole (1) and secure the clamps (2) with the wing nuts
(3). Tighten the wing nuts using 9/16 wrench
3. Untighten the bolts (6) a bit so the hanging arms (7)&(11) are free to swivel around the
secondary pole (10).
4. Pull the plunger (8) and turn the bottom set of (7)& (11) counterclockwise until the
plunger (8) locks in place about 60 deg of the center position.
5. Pull the plunger (8) and turn the top set of (7)& (11) clockwise until the plunger (8)
locks in place about 60 deg of the center position.
6. Insert the arrays threaded pins (13) for the bottom and (15) for the top at the groove of
the lower forks (7) and then press the top threaded pins in place at the upper forks (11).
Make sure the latch(9) turns up and then falls back in place to secure the top pins of
(13)&(15)
7. Tighten the wing nuts of all the pins (13)&(15). Using 9/16 wrench.
8. Release the plungers (8) and rotate the antennas back in place.
9. Tighten the bolts(6) using 9/16 wrench
10. Connect the Rx and Tx Cables coming out of the rear divider which is
mounted on the lower half of the secondary pole(10) to the top (16) and
bottom(14) connector flanges.
11. To adjust the Azimuth :
12. Untighten the wing nuts (3) and rotate till you have reached the position .
13. Tighten the nuts (3).
14. To adjust the tilt of the antenna :
15. Untighten the 6 bolts (4) (on both sides of the mounting assy).
16. Release the latch(5) and adjust the tilt , once the tilt is set lock in position using the
latch(5).
17. Tighten the bolts (4) .
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 36 of 92
INSTALLATION GUIDE
11
10
Mounting Assy
12
Figure 16: Mounting Assy.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 37 of 92
INSTALLATION GUIDE
13
Bottom Array
14
Figure 17: Bottom Array
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 38 of 92
INSTALLATION GUIDE
Top Array
16
15
Figure 18: Top Array
2.8.
2.8.1.
Beamer System Setup
System Block Diagram
The following diagram shows the system connection for a single sector Pol. BEAMER array. A single
ICU can support up to four sectors, each connected as described in the figure.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 39 of 92
INSTALLATION GUIDE
Combiner
Rx1
Beamer Rx
Beamer Tx
Combiner
Beamer Tx
Beamer Rx
Combiner
Combiner
Combiner
Rx2
Splitter
Combiner
Tx
Beamer Tx
Beamer Rx
Beamer Rx
Beamer Tx
PolBeamer - 4x1 Array
RF Cables
Micro-BTS
BTS
Up-Converter
BTS
Down-Converter
Tx
Tx
ABT - Tx
Rx1
ABT - Rx
Rx1
Rx2
ABT - Rx
Rx2
Control
BTS Controller
Monitoring
24VDC
ICU Controller Board
Interface and Control
Unit (ICU)
Host / BTS
interfaces
Figure 19: Beamer single pol. – sector connections block diagram
The sector is configured as pol. BEAMER configuration, in which two Rx channels are used for
polarization diversity reception and one Tx channel is used for transmission. Other Configurations are
easily implemented.
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 40 of 92
INSTALLATION GUIDE
2.8.2.
Logical Addresses and System Components
The BEAMER system setup treats the system block diagram as a hierarchy tree, with the BTS at the
top and the BEAMER modules at the bottom.
Entity Name
Address Range
Actual Address
BTS Controller
-----
ICU
01-04
01
ICU
01-04
02
ICU
01-04
03
Beamer array
1-12
01
Beamer array
1-12
02
Beamer array
1-12
03
Sub-Array - Rx
1,2,4,5,7,8,10,11
Sub-Array - Tx
3,6,9,12
Sub-Array - Rx
1,2,4,5,7,8,10,11
Beamer-Rx
1-16
Beamer-Tx
Beamer-Rx
1-16
Beamer-Tx
Beamer-Rx
1-16
Beamer-Tx
IDU
01-04
04
Beamer-Rx
1-16
Beamer-Tx
Figure 20: Beamer system entities and their logical relationships
The figure above shows the logical entities for a BEAMER system. The top left block can be used as
a legend: each entity is defined by its name, its available address range, and its actual address.
The figure shows a BTS, connected to four ICUs. Each ICU is connected to three physical arrays (for
simplicity, the tree is expanded for one ICU and one array only). Each array consists logically of three
sub-arrays (Bias-Ts): two Rx sub-array and one Tx sub-array. Each Rx sub-array connects logically to
two Rx BEAMER controllers. This connection logically controls both the BEAMER Rx board and the
BEAMER Tx board. The Tx sub-array has a dummy logical relation with the Tx- BEAMER module,
since its actual logical control is via the Rx- BEAMER block (this relation is shown as dashed line).
However, the Tx- BEAMER has actual physical relation with the Tx sub-array, by virtue of the RF
connection between them.
The actual logical addresses shown on the figure were chosen from the available address range and
are actually arbitrary. However, with the ICU Bias-T organization it is easier to group the Bias-Ts as
Rx1,Rx2,Tx per array. In other words, the following sub-arrays groups should be assigned for each
array (sector):
•
Sub-arrays (1,2,3) - array #1
•
Sub-arrays (4,5,6) - array#2
•
Sub-arrays (7,8,9) - array#3
•
Sub-arrays (10,11,12) - array#4
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 41 of 92
INSTALLATION GUIDE
The following table summarizes the available address range for the system entities:
Table 2: BEAMER system logical addresses range
Address range
Name
ICU
01 to 04. Address 00 reserved for testing
Array
01 to 12(03). For Micro- ICU: maximum 03 (always pol. BEAMER)
Sub-array (Bias-T)
01 to 12(09). For Micro- ICU: Same as physical address, maximum 09.
BEAMER
01 to 16. Address 00 reserved for testing
2.8.3.
System Configuration and Setting
Some of the ICU setup are already configured for the needed system configuration. This setup is
saved on the ICU's Flash memory. Using the PC to ICU protocol commands, you can verify that the
ICU is properly set.
The following sections will guide you through the process of ICU setup verification. You can modify
the setup to match your configuration at any time.
Throughout this section, some command examples and data will be used. As a rule, all commands
data and commands codes are given here in decimal representation, unless specifically specified,
using 'H' prefix for hex numbering. Also, it is assumed that the reader has some knowledge with the
PC to ICU protocol, given in [1]. The command sequence described in this section should be referred
to as a system configuration guide, not as a PC to ICU programming manual. For more information,
refer to the applicable documentation listed at the beginning of this chapter.
Before setting up the system, avoid connect RF cables between the ICU and the BEAMER array.
Since the Tx and Rx gain are not calibrated yet, this is done to protect the BTS interface and the
BEAMER array from overdrive conditions.
The following table can be used as a reference for the ICU and BEAMER array setting. The table
specifies the pre-set default values and points to the specific command code, used for reading or
saving a parameter value.
Note: Many values are not set. The following sections will instruct you how to set
these values, tailored to the specific on-site installation.
Caution: some values ( such as RS-232/RS-485 switch ,Time out and codes
1,137,141,145-149) are factory set and should not be changed on location. In part
ICU are, these values relate to the BEAMER array calibration and operation
modes. Modification of these values, without coordination and specific
authorization from Celletra engineering, can cause invalid array performance and
should be avoided. The changes are possible by the highest password
authorization only.
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 42 of 92
INSTALLATION GUIDE
Parameter
Table 3: ICU - BEAMER default values and quick reference
Save Read
Data bytes default value
Required for µICU
code code
Operation Mode
05
06
00-Auto
00-Auto
Control Mode
07
08
00-Main, 01-Local
00-Main, 01-Local
ICU configuration
(jumper
positions)
N/A
09
01-Operation
01-Operation
01-I/O installed
00-I/O not installed
00-MODEM not installed
00-MODEM not installed
00-RS-232/RS485 disabled
01-RS-232/RS485 enabled
Not set
# of arrays - 03
System Features
10
11
arrays type BEAMER -00
Array
configuration
12
13
Not Set
See 2.8.3.2
Bias-T
configuration
14
15
Not Set
See 2.7.3.3
Bias-T type
16
17
01 01 02 01 01 02 01 01 02
01 01 02
01 01 02 01 01 02 01 01 02
00 00 00
02-Tx 01-Rx
See also 2.8.3.4
00-Not installed
Bias-T
attenuation
18
19
Not set
See 2.8.4
BEAMER limits
20
21
Not set
See 2.8.4.4.1
ICU limits
22
23
Not Set
See 2.8.4.4.2
Bias-T limits
24
25
Not Set
See 2.8.4.4.2
Alarm Conditions
26
27
Not Set
See 2.8.4.4.4
Time out
36
37
BEAMER - 128mSec
ICU - 5 minute
Do not change. Cannot be
accessed in operation
mode.
Real time clock
38
39
Set to Israeli time zone
Set to location time zone
BEAMER
configuration
133
134
All ON. Attenuation = 0dB.
All ON. See 2.8.4.3
Shut-down
conditions
135
136
All ON
All ON. See 2.8.4.4.3
Other BEAMER
parameters
1, 137, 141,
145-149
Factory set. Not intended to be changed on location!
These commands cannot be accessed in operation mode.
The following sections describe how to configure the system step-by-step.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 43 of 92
INSTALLATION GUIDE
2.8.3.1.
Set ICU Operation Mode
The ICU configuration setup can only be changed when the ICU is set to SLAVE mode. The default
ICU configuration is AUTO. To switch to slave mode use 'save operation mode' command (code 05),
with parameter 01. Note, however, that if the ICU communication is left unattended for longer than
the time out, defined by 'save time out' command (code 36) [default value is 5 minute], the ICU will
automatically switch back to AUTO mode. Only the following commands are available in AUTO
mode:
•
Save operation mode (05)
•
Read operation mode (06)
•
Save control mode (07)
•
Read control mode (08)
•
Read array status (28)
•
Read BEAMER status (29)
•
Read ICU status (30)
In AUTO mode, any other command will be responded by an error message (code 34, data 01 xx xx
xx xx).
2.8.3.1.1.
Checking the ICU System Address and ICU ID
The ICU system address and the ICU ID can be easily modified1, to suit your needs. To change the
ICU address you should know the ICU ID.
You can read the ICU system address and its ID as follows:
Sent
command
Code Data
Response from ICU
Remarks
Read ICU ID
02
00
X1 X2 X3 X4
Every ICU answers when
addressed by 00
Read ICU
system
Address
04
X1 X2 X3 X4 X1 X2 X3 X4 Y
2.8.3.1.2.
Use ICU ID (X1 X2 X3 X4) to
find ICU address (Y)
Changing the ICU System Address
Caution: ICU ID is located on the unit label. The unit label is attached to the -ICU
front panel (the fuse panel). The ICU ID is its physical number. Do not modify the
ICU ID, unless authorized by Celletra engineering support.
Once the ICU ID and system address are known, you can easily modify the system address to any
other value. The following sequence demonstrates how to change the ICU system address from Y to
04, using known ICU ID 101 102 103 104.
ICU ID cannot be changed in operation mode. Issuing command code 01 in operation mode will produce an
error message.
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 44 of 92
INSTALLATION GUIDE
Sent
command
Code Data
Save ICU
system
address
03
Response
from
ICU
101 102 103 104 04 ACK
Remarks
Change system address from Y to 04
using known ID 101 102 103 104
Note: ICU system address ranges between 01 to 04. ICU address 00 is reserved
for system configuration and should not be used.
2.8.3.2.
Configuring the Number of BEAMER Arrays
The 'save system features' command is used to configure the number of connected BEAMER arrays.
Use this command to add or remove an array (logically) from the system. To set the number of
installed arrays to 2, use:
Code 10 (save system features), ICU address, 02, 00 (BEAMER)
Note: Issuing the 'save system features' command will erase the previous BEAMER
configuration. Previous definitions of arrays and Bias-T assignments must be
reprogrammed, following this command.
2.8.3.3.
Bias-T Definitions
Once the arrays are configured, a Bias-T must be assigned for each array. 'Save Bias-T configuration'
command (code 14) is used for assigning the Bias-T for the arrays. For example, the following
command assigns Bias-T #1, 2, and 3 to array #1:
Code 14 (save Bias-T configuration), ICU address, 01 (array address), 07 00 (Bias-T #1,2,3 assigned)
Bias-T addresses and Bias-T physical locations are the same (i.e. Bias-T number 1 is mapped to BiasT address 1, and so forth).
Note: Bias-T assignment is bit-wise representation of the command data bytes. Also note that the
above command does not configure the Bias-T type (Tx or Rx). Repeat for every installed array in the
system.
2.8.3.4.
Configuring the Bias-T Type
Using the command 'save Bias-T type' (code 16) will define the Bias-T type for the ICU (note that this
logical definition must agree with the actual, physical Bias-T type, as installed at the ICU. For ICU,
this is always Rx-Rx-Tx-Rx-Rx-Tx-Rx-Rx-T- right to left, form the rear). This logical definition does
not change for the ICU.
The following example defines ICU Bias-T installation:
Code 16 (save Bias-T type), ICU address, 01 01 02 01 01 02 01 01 02 01 01 02 02
Note: For Bias-Ts not installed, thus will appear as 00.
2.8.4.
Setting the Bias-T Attenuation
Bias-T attenuation, for either Rx or Tx Bias-T, can be modified with the command 'save Bias-T
attenuation' (code 18). Command 'read Bias-T attenuation' (code 19) can read these settings.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 45 of 92
INSTALLATION GUIDE
Example: To change the Bias-T attenuation for Bias-T #3 (in this case, a Tx Bias-T) to 12dB (=24 or
18H), use the following command:
Code 18 (save Bias-T attenuation), ICU address, 03, 18H
2.8.4.1.
BEAMER Array Module Registration
The command 'save BEAMER system address' (code 131) registers BEAMER module with ID # AA
BB CC DD with system address SS. The BEAMER module ID can be located on the BEAMER
module label. An unknown BEAMER ID can be found by issuing a 'read BEAMER system address'
command, with address 00. Note however that since every installed BEAMER module will respond to
address 00, it is impossible to issue this command for an array. Therefore, the installed unit ID must
be retrieved from the unit label, or from the Tag accompanying each array and removed when the
array is installed.
Important note: The BEAMER ID is saved on the module's NVRAM during
production, and cannot be changed.
Example: The following command assigns a system address 01 to BEAMER module with ID 1004,
converting 1004 to 000003ECH:
Code 131 (save BEAMER system address), ICU address, 00, 00, 03, ECH, 01
Repeat the above command for every installed BEAMER module in the array.
2.8.4.2.
Configuring the Array
The 'save array configuration' (code 12) command will match the installed array with the ICU. It will
also tell the ICU the number of installed modules on the array (in our case, 4).
Example: The following example describes array with system address 01, with four BEAMER
modules installed.
Code 12 (save array configuration), ICU address, 01, 0FH, 00
Note: The BEAMER module assignment is bit-wise representation of the command
data (i.e. 0FH=00001111B, or first four BEAMER modules are assigned).
2.8.4.3.
Configuring the Default BEAMER Setting
Command 'save BEAMER configuration' (code 133) can change the default BEAMER module power
amplifier conditions and Tx and Rx attenuation. The default setting for this command is ON for the
main and correction amplifier, and 0dB for the attenuation.
The following example shows how to set the Tx attenuator to 10dB, Rx attenuator to 0dB, for
BEAMER at address 12(0C), with main and correction amplifiers set to ON:
Code 133 (save BEAMER configuration), ICU address, 0CH, 01, 01, 0AH, 00, 00
Important Note: Turning OFF the correction amplifier might cause serious CDMA
spectrum distortion. Celletra does not recommend changing this setting without
consulting Celletra engineering personnel.
2.8.4.4.
Configuring and Defining the System Properties
The previous commands configured the ICU controller to recognize the installed array and BEAMER
modules. The procedure described above should be repeated for every installed array (up to three
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 46 of 92
INSTALLATION GUIDE
arrays can be supported with a single ICU). The following commands define the system properties,
and are independent of the number of installed arrays. These system properties define the alarm and
shut-down conditions and limit for both BEAMER and ICU. Setting the BEAMER and ICU limits
affects the status reading received when issuing the read status commands (i.e. 'read ICU status' (30),
'read BEAMER status' (29), 'read array status' (28) and 'read Bias-T status' (19)).
2.8.4.4.1.
Setting the BEAMER Limits
Another means to control the failure conditions, built-in the BEAMER controller, is the 'save
BEAMER limits' command (code 20). This command sets the range for which a failure is declared.
These values can be changed to the customer's preferences, in conjunction with the failure conditions
declaration (code 26.).
The following table contains Celletra's recommendations for the BEAMER limits conditions:
Description
Table 4: BEAMER limits recommended settings
Recommended
Meaning
Value (decimal)
Temperature min
-20°C
Temperature max
20
+70°C
Input power min
-14dBm
Input power max
15
-3dBm
Output power min
22dBm
Output power max
14
34dBm
Tx attenuator min
0dB
Tx attenuator max
31
15.5dB
Main Rx attenuator min
0dB
Main Rx attenuator max
31
15.5dB
Div Rx attenuator min
0dB
Div Rx attenuator max
31
15.5dB
BEAMER supply voltage min
118
13VDC
BEAMER supply voltage max
255
28VDC
2.8.4.4.2.
Setting ICU Limits
Similar to the command for the BEAMER limits, commands 'save ICU limit' (code 22) and 'save BiasT limits' (code 24) set the limits for the ICU, determining the failure conditions.
These limits can be changed to the customer preference (up to a given, reasonable range). The
following table sets the recommended limits for the ICU and the Bias-T.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 47 of 92
INSTALLATION GUIDE
Description
2.8.4.4.3.
Table 5: ICU limits setting
Value (decimal)
Meaning
ICU supply voltage min
128
14VDC
ICU supply voltage max
255
28VDC
Fan current min
0mA
Fan current max
255
180mA
Bias T supply voltage min
128
14VDC
Bias T supply voltage max
255
28VDC
Tx bias T current min
255
0mA
Tx bias T current max
500mA
Rx bias T current min
255
0mA
Rx bias T current max
500mA
Setting the BEAMER Shut-Down Conditions
BEAMER shut-down conditions can be modified using command 'save shut down conditions' (code
135). Currently, three parameters control the BEAMER shut-down criteria: BEAMER temperature,
Tx current and linearizer performance. The factory setting for these parameters is ON for each one
(i.e., the BEAMER will shut down for any violation regarding these parameters).
Shut-down conditions for the BEAMER modules are very important parameters used for protecting
the BEAMER hardware from over temperature and electrical short as well as eliminating transmitter
spectrum distortion due to linearizer failure. The BEAMER module software has built-in recovery
features following shut-down.
Caution: Do not change the conditions for these settings, unless specifically
advised by Celletra engineering.
2.8.4.4.4.
Defining System Failure Conditions
Command 'save alarm conditions' (code 26) defines the conditions for failures. These conditions can
be set to the customer's preferences. The following table describes the command conditions and the
suggested failure conditions.
Table 6: Failure conditions
Failure Description
Recommended Value
Temperature out of range
01 minor
Input power
01 minor
Output power out of range
01 minor
Tx attenuator
00 no condition
Main Rx attenuator
00 no condition
Div Rx attenuator
00 no condition
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 48 of 92
INSTALLATION GUIDE
2.8.4.5.
Failure Description
Recommended Value
BEAMER supply voltage
01 minor
Tx current
02 major
Main Rx current
01 minor
Div Rx current
01 minor
Return power
01 minor
Power amplifier
02 major
Linearizer
02 major
Bias T voltage
02-major
ICU voltage
02-major
Rx bias T current
01- minor
Tx bias T current
02-major
BEAMER CTRLR
02-minor
ICU CTRLR
01-minor
Fan current
00-no condition
Changing the Real Time Clock
The real time clock correct timing is important for log files time stamp. To change the RTC timing
use 'Save real time clock' command (code 38). The following example sets the time to 10:00:00AM, at
31.03.2001:
Code 38 (save real time clock), ICU address, 1FH, 03, 0BH, 0AH, 00, 00
Note: Years are counted since 1990, thus 2001 is represented as 0BH (=11).
2.8.5.
Calibrating the Transmit Channel Gain
Before calibrating the transmit channel gain and connecting the BTS transmitter to the BEAMER -Tx
array input, verify that the Tx-ABT is set to minimum gain (maximum attenuation). Instructions for
Tx-ABT gain setting can be found in section 2.8.3. This is essential for protecting the BEAMER from
possible overdrive due to high input power from the BTS.
The following diagram can be used as a guideline to determine the gain distribution over the transmit
link. The numbers within the shaded circles represent typical BEAMER system expected
performance. However, some gain variations might occur. These variations might be due to gain
variations with BTS output power, the active Bias-T gain, RF cable loss and BEAMER -Tx gain. It is
therefore important that the gain calibration procedure will be performed whenever one of the system
components is changed: the BEAMER array, the RF cable, the active Bias-T or the BTS up-converter
output.
Proprietary Information
Title: BEAMER Array SystemAssembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 49 of 92
INSTALLATION GUIDE
G Beamer1
GBeamer 2
+39dbm
1:4
Divider
G Beamer 3
[L=6db]
Beamer
Array
[G=13.5dBi]
Combined
in the Air
EIRP=52.5dBm(max)
G Beamer 4
+2dbm
Coax
Loss=L
-4dbm
Pout (max)=33dBm
G=37±0.5dB
GC=0 to 15.5dB
Pout (max)=10dBm
G=30±1dB
GC=0 to 15.5dB
-20 dbm
L=0 to
6dB
BTS
Input
GABT
Pin
+8dbm
Pin=-5dBm to -20dBm
Figure 21: Tx link budget example
2.8.5.1.
Estimating the Required Tx-ABT Gain
The purpose of this procedure is to verify that the BEAMER system available gain is sufficient to
cover the expected RF losses, before starting the actual Tx calibration.
Proprietary Information
Title: BEAMER Array System
Assembly and Operation Manual
Doc. No.: 913000100
Rev.: 00
Page: 50 of 92
INSTALLATION GUIDE
Measure or estimate, according to the RF cable's vendor specifications, the RF losses over the Tx RF
cable. Typical loss for ½" cable is 0.11db/meter or about 5.5dB/50meters. (LTX-CABLE)
Measure or estimate the output power from the BTS up-converter at full capacity (PBTS)
Using G BEAMER (min)=36dB, estimate the needed output from the Tx-ABT:
Pout(ABT)=33dBm-G BEAMER +6dB+0.5dB+ LTX-CABLE
Verify that Pout(ABT)<+10dBm. If the computed Pout(ABT) is higher than the required limit, you
should use lower loss RF cable.
Estimate the Tx-ABT gain to achieve the required ABT output:
GABT = Pout(ABT)-PBTS
The maximum available GABT is 30dB, reducible to 14.5dB in steps of 0.5dB.
2.8.5.2.
Setting the Actual Tx-ABT Gain
The following procedure will set the actual ABT-Tx gain to achieve the required output power from
the BEAMER array (+33dBm per BEAMER module, +39dBm or 8Watts at the antenna port).
1. Using the PC or BTS interface, verify that the Tx ABT gain is set to minimum.
2. Connect the BTS up-converter output to the Tx-ABT input.
3. Set the BTS up-converter to full capacity, single carrier simulated CDMA output (if this feature is
not available from the BTS, use a commercial CDMA source, such as HP4431B - ESGD, to generate
the required signal. Note that the BEAMER power measurements are calibrated for CDMA RF
signals only).
4. Read the BEAMER power indications for each BEAMER module connected to the array. Issuing
the command read BEAMER indications (code 132), with the appropriate ICU and BEAMER
addresses does this. Output power indication is given within a range of 0-14dB above +20dBm.
5. Repeat for all four BEAMER -Tx modules integrated into the array. Compute the average output
power:
PAV =
∑P
i =1
Where Pi is the measure output power from BEAMER -Tx #i, as indicated by read BEAMER
indications command.
6. Watch for variation between the Pi readings. The differences between the BEAMER -Tx measured
output power, for output power in the range of 26dBm
Source Exif Data: 
File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.3
Linearized                      : No
Modify Date                     : 2001:05:29 14:44:22-04:00
Create Date                     : 2001:05:27 13:46:42+02:00
Title                           : SBnnnn Hardware and Setup Guide
Author                          : Rich Yaffe
Creator                         : Microsoft Word 9.0
Producer                        : Acrobat Distiller 4.05 for Windows
Page Count                      : 92

EXIF Metadata provided by EXIF.tools