Avaya Canada MCBTS1900B User Manual 79672
Avaya Canada Corporation 79672
8
Application for Type Acceptance Doc: RF-00146-98 NQRTE L FCC ID AB6MCBTSIQOOB Issue: 1.0 NORTHERN TELHOM Exhibit E User Documentation Date: July 17, 1998 This document contains Proprietary and Confidential Information of Northern Telecom, Inc, Proprietary CDMA MCBTS 1900 Cell Site Requirements Issue 0.01 Document: CDMA MCBTS 1900 Cell Site Requirements June 18, 1998 NORTEL Wireless Netwo CDMA BTS Radio Dev BTS Radio Systems 2 Security Warning: The information contained in this document is the property of Northern Telecom Ltd. The holder of this document shall keep all information cone tainecl herein confidential and shall protect the same in Whole or in part from disclosure and dissemination to all third parties, FCC ID:ABGMCBTS(900B NQRTEL NORTHERN lElECOM CDMA MCBTS 1900 Outdoor NQRTE L Cell Site Requirements NORTHERN lilEfOM 1.0 EXECUTIVE SUMMARY ................................................ 1 2.0 INTRODUCTION .......................................................... 2 3.0 ENVIRONMENTAL REQUIREMENTS ...................................... 3 4.0 MECHANICAL REQUIREMENTS ...... 4.1 Physical Spccificulions ....... ,, 411 Digital Enclosure . , , ......... 4.2 RPM ...... . . . 4.3 General Cabinet Anchoring ............... , 4.4 Pad Mounting ........... , .................. 4.5 Rubber Isolation Pad . . . . 4.6 Cable Ingress/Egress ....................... 5.0 AC POWER REQUIREMENTS ............ 5.1 Power Specifications ...... . 5.2 AC Connection ........................................... . . . 6.0 RF OVERLAY REQUIREMENTS ................................. 9 6.1 Cable connections . . . . . ..... 9 7.0 GPS RECEIVER ........................................... . 14 8.0 CONNECTIONS AND CABLI'NG ............................. . 15 8.1 RPM Power Connections and Cable . . . . . . . . . . 15 8.2 RFM interconnect ............................... . . 15 8.3 Fiber ............................... ..18 9.0 Tle1 CONNECTIONS . . . . . ..... . . 20 10.0 GROUNDING ................... . . .21 10.1 BTS Grounding Architecture ..... . . 21 10.2 Antenna Grounding .. , ..... .. 21 10.3 RPM Grounding ..... y . . . 21 10.4 Site Ground Ring .... ............................. . ....21 Version 001 Draft print date: June 18, 1998 Page 1 01 ii CDMA MCBTS 1900 O td Cell Site Requirementsu 00V NQRTE L NORTHERN TELECDM Version 0.01 Draft Date: June 18, 1998 Page 4i of xi CDMA MCBTS 1900 OUTDOOR NQRTEL CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORTHERN IHKOM CELL SITE REQUIREMENTS 1.0 EXECUTIVE SUMMARY The CDMA MCBTS 1900 Outdoor BTS Is a new product development for Nortel‘s PCS markets in North America. This document details cell site requirements forthe full MCBTS Outdoor product. June 18, 1995 4— Version 0.01 CDMA MCBTS 1900 OUTDOOR NQRTEL CDMA BTS FlADIO DEVELOPMENT PROPRIETARY NORTHERN lElEtOM CELL SITE REQUIREMENTS 2.0 INTRODUCTION This document outlines the cell site engineering requirements for the CDMA MCBTS 1900 Outdoor System. its intended audience is the cell site engineering team who will use this information on the capabilities of the MCBTS to plan the installation of the product at a cell site. The cell site engineering team should have expertise in mechanical, grounding, power, telecom, and RF engineering. Specifications in the Product Specification Agreement (PSA) shall take precedence over information in this document. The MCBTS cell site requirements fall into six main categories: - mechanical requirements - grounding requirements power requirements signal interface requirements antenna requirements carrier requirements The mechanical requirements cover the phys' racteristics (weight, size), the mounting requirements and restrictions an A Ripping, hoisting, and lifting requirements of the Digital Enclosure, fith‘efiifladio Frequency Modules (RFM). s a ‘t. The MCBTS will be deployed in outdoors. This document cov environments potentially both indoors and 'TS outdoor version. th June 18, 1998 -2- Version 0.01 CDMA MCBTS 1900 OUTDOOR NQRTEL CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORTHERN lEtEtOM CELL SITE REQUIREMENTS 3.0 ENVIRONMENTAL REQUIREMENTS The external environmental operating condition requirements are described in this section. Table 1: Iiststhe MCBTS thermal ratings. Thermal Rating Range (lpurutmg Range 740” C to +50" C (Numml Optimum , 24 lmurs per day) Ml“ Flo 105° F) “pirating Range -55" C to +650 C t _ v . . . ‘ (SliorlTerm Opcrtuum Mu more than 72 hours wmmuous (32°C to ‘200 C) w [5 days per year Nomopcralmg Range (Storage) for 72 hours 500C to +7o°c (-60°F to 160°F) Table 1: MCBTS Therm The altitude specifications are listed in Table 2:., I ' : Operationgga v Range (in) Standard “‘%H ISOO (Normal 0pm you per day) Non-Ongééinggnng (Storage) -6010 15000 Table . MCBTS Altitude Rating The relative humidity specifications are listed in Table 3:. Relative Humidity Range Operating Range 5 to 95% (Normal Operation — 24 Hours Per Day) (Nun-Condensing) Non-Operating Range (Storage for 96 hours) 90,95% RH a! 40°C Table 3: MCBTS Humidity Rating June 18‘ 1998 -3- Version 0.01 CDMA MCBTS 1900 OUTDOOR NQRTEL CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORTHERN lElECOM CELL SITE REQUIREMENTS 4.0 MECHANICAL REQUIREMENTS 4.1 Physical Specifications The MCBTS is comprised of a digital enclosure (DE) and radio frequency modules (RPM). The dlgital enclosure is designed to be mounted on the ground while the RFM's are designed to be remote mounted. 4.2 Digital Enclosure The DE is the main structural component in the MCBTS. The digital enclosure will house the rectifiers, equipment shelves, internal heating/cooling tray, heat exchanger internal loop fan assembly and provide for all necessary internal cable routing/management. The preliminary outside dimensions for the DE are illustrated below. These dimensions refer to the unpackaged height and are excluding the DEI which attaches to the left side and the heat exchanger which mounts on the top. The dimensions are: - Depth: 30" - Height: 57” Max (excluding 15" hig - Width: 30" The DE with no shelves will wei . ed 190 lbs. 4.3 Digital Enclosure Inte The Digital Enclosure Interface (DEI) for the MCBTS enclosure assembly provides entrance of AC power, network and alarm connections, and connection to the ground ring. The dimensions of the DEI are shown below. The dimensions are: 0 Depth: 30" (same as overal depth of Digital Enclosure) - Height: 7 " 0 Width: 12" The weight of the empty DEI is estimated to be 225 lbs. The loaded module weight after integration of equipment is expected to be 700 lbs. Cable access to the DE is via the DE interface (DEI) June 18, 1998 -4- Version 0:01 CDMA MCBTS 1900 OUTDOOR NQRTEL CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORIHERN IEIKOM CELL SITE REQUIREMENTS 30“ h— 30“ —— WI. 4.4 External Battery Cabinet The MCBTS external battery cabinet (EBC) is an optional stand alone enclousre that provides additional battery backup to the digital enclosure. It will be located adjacent to the DE at the installation site and allow for one additional EBC to be daisy chained together to provide additional battery backup. The EEG utilizes the DE as its external enclosure for environmental protection. Four lifting eyes are provided at the top of the EEC for installation at the cell site. June 18, 1998 -5» Version 0.01 CDMA MCBTS 1900 OUTDOOR NeRTE L CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORTNIRN TEIEEOM CELL SITE REQUIREMENTS 72” ISOMETRIC VIEW June 18. 1998 -6- Version 0.01 CDMA MCBTS 1900 OUTDOOR NQRTE L CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORIHERN IEIEtOM CELL SITE REQUIREMENTS P30” W H, 12” 1377 June 18, 1998 ~7— Version 001 CDMA MCBTS 1900 OUTDOOR NQRTEL CDMA BTS RADIO DEVELOPMENT PROPRIETARY NURTNERN lElEmM CELL SITE REQUIREMENTS 4.4.1 RFM The preliminary outside dimensions for the RPM are shown below. These dimensions refer to the unpackaged height and are excluding the EOM which attaches to the bottom of the RFM on the right hand side. The dimensions are: - Depth: 12.1" - Height: 27.92” - Width: 34.1“ The complete FlFM will weight an estimated 120 lbs. (film—— ~——~—-— (3A lDl —4~—«~ RFM Mounting (preliminary) The RFM is intended to be installed onto standard Unistrut type C-channel mounting hardware. There is a mounting bracket that will be pre-installed onto the uni-strut. This June 18, 1998 78— Version 0,0l CDMA MCBTS1900 OUTDOOR NQRTE L CDMA BTS RADlO DEVELOPMENT PROPRIETARV NORTHERN IElECUM CELL SlTE REQUIREMENTS will provide mounting, locating and hanging features that will allow the RPM to be installed and hang in place until it can be fastened. The mounting plate serves as a demarcation point for the interconnect. 4.5 General Cabinet Anchoring The DE is designed to be hoisted by a crane. Four mounting points are provided on the top of the cabinet for hoisting. 4.6 Pad Mounting The MCBTS shall be mounted on a concrete slab. 4.7 Rubber Isolation Pad The DE shall be mounted on a rubber pad. 4.8 Cable IngressIEgress Cable access to the RFM is June 15, 1998 —9— Version 0.01 CDMA MCETS 1900 OUTDOOR NQRTEL CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORTHERN IElEiiJM CELL SITE REQUIREMENTS 5.0 AC POWER REQUIREMENTS 5.1 PowerSpecifications Commercial ac power will be supplied to the DE as a single/split-phase, 120/240 Vac (nominal, or 120/208 Vac two phase), four conductor (L1, L2, Neutral and Ground), connection from an external service entrance. The ac power input specifications are as follows: - Nominal Input Voltage: 240/120 Vac, single, split phase, 60 Hz - Input Voltage Range: 178 to 264 Vac (or 105 to 132 Vac line to neutral) ° Input Frequency: 47 ~ 63 Hz - Power Factor: greater than 90% at nominal line voltage and frequency. - Input Current Rating: 70A, 2»pole circuit breaker. 5.2 AC Connection All external power enters the system via the DEI. wire (L1, L2, Neutral, and ground), nominal 240/12OV (or 208/120V), 100A¢r§iing,ia'c supply must be supplied by the customer. Primaw power is by connection t" , ac utility. If the DEI is to be the service entrance, the neutral—ground jumpe n thy“? 0 panel should be connected. Othentvise, it should be removed. Auxiliary a‘ecess is via the external ac generator receptacle connector. Signal Interface quantity wire rating/gauge Connector Description AC utility 1 (BC + gnd) 70A Bkr, AWG 1M, 90 0C Refer to Generator Socket 1 (3 -C + grid) 70 A Bkr, AWG M, 90 0C Refer to Table 4: AC Utility Connections June18,1998 -10- Version 0.01 CDMA MCBTS 1900 OUTDOOR NQRTEL CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORTHERN TElECflM CELL SITE REQUIREMENTS 6.0 RF OVERLAY REQUIREMENTS The MCBTS has several overlay options. Basic installation configuration (single channel) Simple overlay on mini configuration The minimum requirement (1 carrier) is 2 antennas per sector. One torthe main antenna (Tx and one diversity path) and one for the other diversity path. A two carrier system can also be supported with two antennas. In this case, each antenna carries one carrier on the Tx side and one diversity path on the Rx side, With a three carrier system a third antenna is added to carry just the Tx of the third carrier. Number of Carriers Number oflAntannas s “as; Table 5: Sy tfifit |%\ngl’mvisianing 6.1 Cable connections tr The optical link cable, SFtFM DC my cable, and the GPS antenna cable have a provisionable length. When ordering, the length must be specified and fall below the maximum length specifications indicated. The quantity of inter—SRFM cables required depends upon the application. In a single carrier system, no inter-SRFM cables are required. In 2 or 3 carrier systems. inter-SRFM cables are required. Two sample configurations will be considered for illustrative purposes. These are i) a basic system with no redundancy and ii) a premium system with all redundancy June18,1998 -1t- Vers|on 0.01 CDMA MCBTS 1900 OUTDOOR NQRTEL CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORTHERN IELHOM CELL SITE REQUIREMENTS oz sector [3 sector y sector E a m “a E‘ a, _| EOM Power E diversil E dwarsw June18,1998 42— Verswon 0 01 CDMA MCBTS 1900 OUTDOOR NeRTE I- CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORTHERN IEIKDM CELL SITE REQUIREMENTS 0L SGC'IOI’ E main E_main E_diversi|y E mam on“ E dwovsII E mam oun frequency 1 frequency 2 EOM Power June18,1998 43. Versron 0.01 CDMA MCBTS 1900 OUTDOOR PROPRIETARY NQRTEL NORTHERN IELHDM CDMA BTS RADIO DEVELOPMENT CELL SITE REQUIREMENTS frequency 1 E_ma\nuout1 l E dlverswly EOM Power frequency 2 “W EoutZ I Egdwerm Egmain EOM Powev frequency 3 E_main Egd iversil E_main ou|2 E mam nun EOM Power 0! sector June 18, 1998 Version 0401 _14. CDMA MCBTS 1900 OUTDOOR NQRTE L CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORTHERN IEIHDM CELL SITE REQUIREMENTS x: _. Sector 11 RxRF OUT 0 TXRF IN RxRF OUT 1 TEST POWER IN TxRF a Test a Power (1 HxRFO a RxHFI u 1 ca ” r pe sector mini-BTS ANTO Seder a HXRF_OUT_1 E diversil E1 u.| HXRF OUT 0 E_diversily_out1 TEST POWERJN 2 carriers per sector overlay on mIni—BTS TXRF IN TxRF a RXRFO (1 — FIxRF1 a TEST a POWER (1 Mini—HTS June 18, 1998 -15- Version 0.01 CDMA MCBTS1900 OUTDOOR NQRTEL CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORTHERN IElEtDM CELL SITE REQUIREMENTS 7.0 GPS RECEIVER Timing and frequency reference information provided by the GPS receiver is critical to the proper operation of the MCBTS subsystem. One or two GPS antennas may be connected. The GPS antenna receives the signals from multiple satellites, and the signal is supplied to the GPS receiver in the MCBTS via a coaXIaI cable. Precautions should be taken to ensure that the GPS antenna is clear of obstructions and interference. The antenna should be installed to provide the best view of the entire sky. A complete view of the sky from horizon to horizon will enable the receiver to observe as many GPS satellites as possible. This allows the GPS receiver to select the best combination of GPS satellites for best performance. If the GPS antenna must be installed with a Imited view of the sky, it may not be able to track a sufficient number of satellites to determine its position. The GPSR must track at least 4 satellites simultaneously for some period of time in survey mode. Once the GPSR has an accurate fix on its location, if can maintain accurate timing signals to the BTS while tracking only 1 satellite. an The maximum distance between the MCBTS and t maximum allowable cable loss of 7? dB. The c GPS receiver for determining the delay from th PS antenna is set by the kle Vengthyand type is required by the ntenna to the receiver. {51 Cable Connector Type Max Loss Max Length e On MCBTS end On Antenna end 7? dB at? fl. . | N—type male TNC— type male Tab] Y ‘. IGPS Antenna Interface June 18, 1998 .15. Version 001 CDMA MCBTS 1900 OUTDOOR NQRTE L CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORIHERII IELKDM CELL SITE REQUIREMENTS 8.0 CONNECTIONS AND CABLING 8.1 RFM Power Connections and Cables DC power is conducted to individual RFM’s via two conductor (-48V, BR) shielded (ground) cables; one cable for each FtFM. The size of the power cable used depends on the cable run length. The DC power cable from the DEI enters the RPM enclosure via the Power Entry Module (PEM). The specifications for these external RFM dc cables are as follows: Less than 3000 feet, use 2 conductor #8 AWG shielded cable Between 300 and 600 feet, use 2 conductor #6 Allowed Cable Voltage Drop: 6 Vdc maximum (48V and Rtn combined) Cable Terminations: two-hole lugs at the DEI BRR plate, twist-lock type connector at FtFM (to mate with the PEM) Shield Termination: grounded at both the RF nd DEI ends, and at the base of the tower. first . H m" acrty. The RFM DC cable is sized for voltage drop, no " é. The optical link enters the RPM via the elec emodule (EOM). 8.2 RFM Interconnect Table 14 below shown the HF 15 shows the RPM external inte T nterconnect single carrier configuration. Table -ct multi carrier configuration. Note Direct onnection to the RFM lrom the Digital Enclosure. mm— mm.— ashlar. GND 1 “— EIectm-Opn‘cal Module (EOM) 629145 Mbs _m COHEI Primary or Redundant digiv , 7 ‘I Supplies primary DC power to the RFM. E rim lwdt 629.145 Mbs copra tal Iinkto Digital Enclosure 629.145 Mbs _-3g_ COHEZ Primary or Redundant digi 1 EOM EJimjwdz 629.145 Mbs optical tal link to Digital Enclosure | one 1 GND are AWG 1 l RFM | RPM Mount<| connect to RFM chassis ing Plate (cold plate) Table 7 RPM Interconnect June 18, 1998 -17> Version 0.01 CDMA MCBTS PROPRIETARY NQRTEL NORTHERN lElHUM 1900 OUTDOOR CDMA BTS RADIO DEVELOPMENT CELL SlTE REOUIREM ENTS 3 E7, in the name dcstgnares a connection cxtcrnal m the RFM Assembly. E_main 'he next table shows the interconnect for the multicarrier configuration.Table of RFM Assembly Interconnect (multiple carrier per sector) Supplies primary DC power to the RFM, Electro~0plical Module (EOM) RF Lightning Protector Array (LPA) N-type coax 1930—1990 MHz and 18504910 MHZ Pn‘marvor Redundant disi- 'a' W m Dig“ Mm Tx/Rx Main Antenna Primary or Redundant digi tal link to Digital Enclosure Eidive rsrty diversity E‘mainjun 1850-1910 MHZ 1 LFA N-type coax 185041910 MHz N—type coax Other RFM/ RFFE 1850-1910 MHz N-type coax maln70ut1 E7rnain70ut2 maln_0u12 E,diversity_out 1350-1910 MHz N-type coax LPA 1850-1910 MHZ N-type coax 1 LPA Other RFM Assembly 18504910 MHz N-type coax 1650-1910 MHz N-type coax Other RFM Only used With multiple RF- Assembly LPA 1 LPA Mlni-BTS MAS per Sector lnly used when deployed Table 8 RPM Interconnect diversi|y_0ut 1850-1910 MHz N-type coax RFM LPA With a Mini-HTS Overlay gnd GND 36 AWG connect to RFM chassis (cold plate) E,gnd GND WM AWG connect to tower or local site ground Misc. grid GND #6 AWG 1 RPM RFM Mount- connect to RFM chass' ing Plate (cold plate) a. Ew in the name designates a connection external to the RFM Assembly. June 18, 1998 Version 0.01 45. CDMA MCBTS 1900 OUTDOOR NQRTE L CDMA BTS RADIO DEVELOPMENT PROPRIETARY HORIHERN TELEEOM CELL SITE REQUWIEMENTS M H U Assembly N 1pr connccmr 9 pm dsub An N zypcson LPA mm: 2—26 VDC @<2A inmgrumd pmlcclmn 17 d gr 4—slg/alarnl shlcldcd ACombo Dsub i 2(4) coax » data rx/lx ? 2 power — 5 VDC/rln ,-' 1 ground ' 2x diff, pair » 4 pins 1 ground shielded Zlno‘umm 3 2 redundant 1“ ' (single-camer) Figure 1 RFMA Interconnect Optical Link Interconnect Design Details. June 18, 1998 7197 Version 0.01 CDMA MCBTS 1900 OUTDOOR NQRTEL CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORIHERN IElEtOM CELL SITE REQUIREMENTS The optical link encompasses the physical pans from CORE transceiver to FtFM transceiver. This includes transceivers, fibers, connectors, splice pints, and fiber management. Figure 17 below shows the potential layout. The reference for the information on the optical link is taken from "MCBTS Optical Link General Specification"; TL-0M00-20-97, Issue 10, 8.3 RFM Optical Link Interconnect The baseline design has the Iollowmg configuration. CORE fiberto fiber interconnect — splice point (4 trays, 12 fibers/tray, existlng Nortel tray & tool) Watertight housing (DEI not watertight) Figure 2 RFM Optical Link Baseline Design 8.4 Fiber The optical link to the RPM will contain 4 fibers per link. Two receive and transmit pairs for redundancy, unless multicarrier deployment is used, when soft redundancy is handled by the other carrier and only two fibers are used (othertwo left unused). The main portion of the link will run on outside plant cable capable of vertical ascent, terminated at the June 15, 1993 -20- Version 0.01 CDMA MCBTS 1900 OUTDOOR NQRTE L CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORIMERN IEIEEOM CELL SITE REQUIREMENTS RFM by an standard SIECOR optifit termination The transceivers will be housed in a healed optical termination unit which is connected to the FtFM by electrical interconnect. The high speed signals will be carried by 4 coaxial links. Fiber interconnect and rearrangement features are required to interconnect the RFM’s to the Digital enclosure. Current baseline design has the digital enclosure provisioned with a optical link harness, fiber storage and management, as well as a flexibility point (splice point) in the DE] cabinet capable of handling all 48 fibers in the fully configured case. The flexibility point need not be fully configured for the single carrier application, and splice trays specified are off the shelf from multiple vendors. The RFM will have an EOM unit which depends upon the length of the fibre run from the DE to the RPM. June 15, 1998 -21- Version 0.01 CDMA MCBTS 1900 OUTDOOR NERTEL CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORTHERN IEIKOM CELL SITE REQUIREMENTS 9.0 T1/E1 CONNECTIONS The GM module has up to 6 T1 interfaces connected through the faceplate. The cable will probably be lumped in two 12 wire bundles terminated at the CM by two 15 pin dsubsc The MCBTS may be configured with anywhere from 1 to 6 T1/E1 links. Each link requires 2 twisted pair. All the twisted pairs may be combined into a single cable along with the subscriber loop twisted pair. Customer interface will be through the DE! accessible T1 protection terminal block. (Daisy chain configuration) June 18, 1998 »22- Version 0.01 CDMA MCBTS 1900 OUTDOOR NQRTEL CDMA BTS RADIO DEVELOPMENT PROPRIETARY NORTHERN TELECOM CELL SlTE REQUIREMENTS 10.0 GROUNDlNG 10.1 BTS Grounding Architecture The RFM is grounded to its mounting structure, whether a tower, wall, building or pole. If the structure is non-conductive (eg. wooden pole) it shall be provided with a ground cable as part of the site ground. The RFM mounting structure and BTS cabinets both connect to the site ground ring. #2 AWG cables less than ten feet long are used for these primary, external ground connections. 10.2 Antenna Grounding Each GPS antenna will be grounded at the antenna mast and again at the cable entry point (coax cable shield) inside the DEI. Similarly the cell site antenna(s) are grounded at the tower and may be further protected by lightni rods on the mountingn structure, protruding above the antennas, preventing direct str to them. 10.3 RFM Grounding , he RFM shall be bonded to the adabe bonded to the external ground d copper conductor. Provision shall be ‘tion of a No. 2 AWG, 2-hole lug connector, The shield of each coaxial cable cable co RFM chassis. Additionally, the RFM c ’ ' system (eg. tower) using No. 2 AWG; made on the FtFM cable bulkheadgfor'tgrmin The DC power cable connectingfghe ain electronics cabinet to the RFM shall be grounded at both the RPM end and the main enclosure end (main ground plate). 10.4 Site Ground Ring A peripheral grounding ring, usually buried around the site perimeter, or routed along the outer edge of the roof of a building, provides the main site ground. It provides an equipotential reference to minimize differential voltages during lightning surges. It provides an equipotential reference to minimize differential voltages during lightning surges. It consists of a #2 AWG (or larger) uninsulated, tinned copper conductor. Connections are made to it using C—tap Clamps. All conductive surfaces or objects on the sites should be connected to it, especially the tower or other RFM mounting structure. The ground ring makes earth contact through ground electrodes, typically copper-clad stakes 3m (10 ft) long, driven into the ground at 2.5 to 3m (8-10 it) intervals around the ground ring and tower, and clamped to it. The resistance to earth of the ground ring shall be 25 ohms or less, with a preferred value of less than 5 ohms. See Nortel 08412200 and DSAPGSBA (Cell Site Power and Grounding) for further information. June 18, 1998 23- Version 0 01 ceH Vantermaw) backhau‘ RF coax unhty ac power antenna(s) f;\ DE EBC equwp't mounting rawl ground electrodes CDMA MCBT81900 OUTDOOR NQRTEL CDMA BTS RADlO DEVELOPMENT PROPRIETARY NORTHERN lElECOM CELL SITE REQUIREMENTS 1L0 ill [2] REFERENCES CMS-MTX/CDMA MCBTS 1900 Outdoor and MCBTS Base Platform. Product Specification Agreement. CDMA MCBTS 1900 Outdoor. Power Protection and Grounding Declgn Specification. [3] CDMA MCBTS 1900 Outdoor. General Specification. [4] MCBTS Optical Link NTGSOSAA, NTG80117, NTGSOOQS Functional Agreement, Packaging Concepts Methodology [5] MCBTS Digital Enclosure Mechanical Assembly NTGStSAA Functional Agreement. Packaging Concepts Methodology. [6] June 18, 1998 25, Versron 0.01 Application for Type Acceptance Doe: moms-93 N Z7 RTE L FCC ID ABGMCBTSIQOOB Issue, 1.0 NORTHERN TELELOM Exhibit F Photographs List of Photographs Photograph lzRFM with Doors Closed Photograph 2:RFM with Doors Open Photograph 3:PAM Photograph 4:TRM Component Side with Shield On Photograph 5:TRM Solder Side with Shield On Photograph 6:TRM Component Side with Shield Removed Photograph 7:TRM Solder Side with Shield Removed Photograph 8:DPM Photograph 9:Microprocessor Card Photograph 10:EOM with Shield Removed Date: July 17, 1998 This documenlconluins Proprietary and Confidential Information of Northern Telecom, Inc
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