Motorola Solutions 89FC5763-A Non-Broadcast Transmitter User Manual EBRC LNODCT Tx FCC Filing

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Application ID	vHPTc4wYwP0aMN0F1Y2yHA==
Document Description	Exhibit D Users Manual per 2 1033 c3
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Document Type	User Manual
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Date Submitted	2001-11-29 00:00:00
Date Available	2001-11-29 00:00:00
Creation Date	2001-11-19 14:26:56
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APPLICANT: MOTOROLA INC.
EQUIPMENT TYPE: ABZ89FC5763-A
INSTRUCTION MANUALS
Due to the highly specialized application of this radio equipment, there is no ‘operational’ or ‘user’ manual.
The instruction and service manual for this base radio are available on a compact disk (CD). The title of this CD is
‘EBTS and integrated Site Controller, SYSTEM MANUALS’, the part number is 98P80800A03-A (0/07/2001-UP).
Pertinent sections of the manual have been extracted and included as part of this filing package in the form of an
electronic pdf document.
Upon request, published and/or printed manuals will be sent to the commission and/or telecommunication
certification body (TCB). All of the descriptions and schematics included in this filing package are current as of the
submission date.
EXHIBIT 8
APPLICANT: MOTOROLA INC.
EQUIPMENT TYPE: ABZ89FC5763-A
TUNE-UP PROCEDURE
There is no field tune-up procedure. All adjustments are software controlled and are pre-set at the factory. Certain
station operating parameters can be changed via man-machine interface (MMI) commands, within predetermined
limits. Examples include transmit / receiver operating frequencies and power level.
EXHIBIT 9
Global Telecommunications Solutions Sector
ENHANCED BASE TRANSCEIVER SYSTEM (EBTS)
VOLUME 1 OF 3
SYSTEM INSTALLATION AND TESTING
© 2001 Motorola, Inc.
All Rights Reserved
Printed in U.S.A.
68P80801E35-A
ECCN 5E992
FCC INTERFERENCE WARNING
The FCC requires that manuals pertaining to Class A computing devices must contain warnings about possible interference with local residential radio and TV reception. This
warning reads as follows:
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 generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. 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.
INDUSTRY OF CANADA NOTICE OF COMPLIANCE
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
COMMERCIAL WARRANTY (STANDARD)
Motorola radio communications products (the “Product”) is warranted to be free from defects in material and workmanship for a period of ONE (1) YEAR (except for crystals and
channel elements which are warranted for a period of ten (10 years) from the date of shipment. Parts including crystals and channel elements, will be replaced free of charge for
the full warranty period but the labor to replace defective parts will only be provided for One Hundred-Twenty (120) days from the date of shipment. Thereafter purchaser must
pay for the labor involved in repairing the Product or replacing the parts at the prevailing rates together with any transportation charges to or from the place where warranty
service is provided. This express warranty is extended by Motorola, 1301 E. Algonquin Road, Schaumburg, Illinois 60196 to the original end use purchaser only, and only to
those purchasing for purpose of leasing or solely for commercial, industrial, or governmental use.
THIS WARRANTY IS GIVEN IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED WHICH ARE SPECIFICALLY EXCLUDED, INCLUDING WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MOTOROLA BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES TO
THE FULL EXTENT SUCH MAY BE DISCLAIMED BY LAW.
In the event of a defect, malfunction or failure to conform to specifications established by Motorola, or if appropriate to specifications accepted by Motorola in writing, during the
period shown, Motorola, at its option, will either repair or replace the product or refund the purchase price thereof. Repair at Motorola's option, may include the replacement of
parts or boards with functionally equivalent reconditioned or new parts or boards. Replaced parts or boards are warranted for the balance of the original applicable warranty
period. All replaced parts or product shall become the property of Motorola.
This express commercial warranty is extended by Motorola to the original end user purchaser or lessee only and is not assignable or transferable to any other party. This is the
complete warranty for the Product manufactured by Motorola. Motorola assume no obligations or liability for additions or modifications to this warranty unless made in writing and
signed by an officer of Motorola. Unless made in a separate agreement between Motorola and the original end user purchaser, Motorola does not warrant the installation,
maintenance or service of the Products.
Motorola cannot be responsible in any way for any ancillary equipment not furnished by Motorola which is attached to or used in connection with the Product, or for operation of
the Product with any ancillary equipment, and all such equipment is expressly excluded from this warranty. Because each system which may use Product is unique, Motorola
disclaims liability for range, coverage, or operation of the system as a whole under this warranty.
This warranty does not cover:
a) Defects or damage resulting from use of the Product in other than its normal and customary manner.
b) Defects or damage from misuse, accident, water or neglect
c) Defects or damage from improper testing, operation, maintenance installation, alteration, modification, or adjusting.
d) Breakage or damage to antennas unless caused directly by defects in material workmanship.
e) A Product subjected to unauthorized Product modifications, disassemblies or repairs (including without limitation, the addition to the Product of non-Motorola supplied
equipment) which adversely affect performance of the Product or interfere with Motorola's normal warranty inspection and testing of the Product to verify any warranty claim.
f) Product which has had the serial number removed or made illegible.
g) A Product which, due to illegal to unauthorized alteration of the software/firmware in the Product, does not function in accordance with Motorola's published specifications or
the FCC type acceptance labeling in effect for the Product at the time the Product was initially distributed from Motorola.
This warranty sets forth the full extent of Motorola's responsibilities regarding the Product. Repair, replacement or refund of the purchase date, at Motorola’s option is the
exclusive remedy. IN NO EVENT SHALL MOTOROLA BE LIABLE FOR DAMAGES IN EXCESS OF THE PURCHASE PRICE OF THE PRODUCT, FOR ANY LOSS OF USE,
LOSS OR TIME, INCONVENIENCE, COMMERCIAL LOSS, LOST PROFITS OR SAVINGS OR OTHER INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGE ARISING
OUT OF THE USE OR INABILITY TO USE SUCH PRODUCT, TO THE FULL EXTENT SUCH MAY BE DISCLAIMED BY LAW.
SOFTWARE NOTICE/WARRANTY
Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted Motorola software such as the exclusive rights to reproduce in copies
and distribute copies of such Motorola software. Motorola software may be used in only the Product in which the software was originally embodied and such software in such
Product may not be replaced, copied, distributed, modified in any way, or used to produce any derivative thereof. No other use including without limitation alteration, modification,
reproduction, distribution, or reverse engineering of such Motorola software or exercise of rights in such Motorola software is permitted. No license is granted by implication,
estoppel or otherwise under Motorola patent rights or copyrights.
This warranty extends only to individual products: batteries are excluded, but carry their own separate limited warranty.
In order to obtain performance of this warranty, purchaser must contact its Motorola salesperson or Motorola at the address first above shown, attention Quality Assurance
Department.
This warranty applies only within the fifty (50) United States and the District of Columbia.
EBTS System Manual - Vol 1
System Installation and Testing
2 System
Installation and
Testing
About This Volume
Volume 1 of the Enhanced Base Transceiver System (EBTS) manual, System
Installation and Testing , provides the experienced service technician with an
overview of the EBTS operation and functions, and contains information on
installing and testing the 800 MHz, 900 MHz, and 1.5 GHz EBTSs and the
Multi-Sector Expansion Rack (MSER).
The EBTS has three major components:
❐
Generation 3 Site Controller (Gen 3 SC) or integrated Site Controller (iSC)
❐
Base Radios (BRs)
❐
RF Distribution System (RFDS)
The BRs are described in Volume 2, Base Radios , and RFDS are described in
Volume 3, RF Distribution Systems (RFDS) . Detailed information about the Gen 3
SC is contained in the Gen 3 SC Supplement Manual, 68P880801E30 or iSC
Supplement Manual 68P1098E05 (this manual is incomplete without the Gen 3 SC
or iSC Supplement.)
The information in this manual is current as of the printing date. If changes to this
manual occur after the printing date, they will be documented and issued as
Schaumburg Manual Revisions (SMRs).
Target Audience
The target audience of this document includes field service technicians
responsible for installing, maintaining, and troubleshooting the EBTS.
In keeping with Motorola’s field replaceable unit (FRU) philosophy, this manual
provides sufficient functional information to the FRU level. Please refer to the
appropriate section of this manual for removal and replacement instructions.
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13
System Installation and Testing
EBTS System Manual - Vol 1
Reference Materials (MSER)
Reference Materials (MSER)
In addition to this manual, the following technical manuals are related to the
MSER and may be needed for installation or maintenance.
Publication
Title
Description
68P80801E30
Generation 3 Site
Controller (Gen 3 SC) System Manual
Provides detailed information about the
Gen 3 SC including a description of major
subsystems, components, installation,
testing, troubleshooting, and other
information
68P81098E05
Integrated Site Controller
(iSC) System Manual
Provides detailed information about the
iSC including a description of major
subsystems, components, installation,
testing, troubleshooting, and other
information.
68P81089E50
Motorola Standards and
Guidelines for
Communications Sites
A useful reference for the installation of
fixed network equipment. This manual
provides guidelines and procedures to
ensure the quality of Motorola radio
equipment installation, integration,
optimization, and maintenance. Field
service personnel should be familiar with
the guidelines and procedures contained
in this publication.
Motorola Literature Distribution Center
To order printed copies of the publications listed above, please contact:
Motorola Literature Distribution Center
2290 Hammond Drive
Schaumburg, Illinois 60173
Phone: 847-576-2826
iDEN Online
This manual is available from iDEN online (http://AccessSecure.mot.com). iDEN
online is a secured web site that provides Motorola customers with critical
information about iDEN subscriber and infrastructure.
Some of the features of this web site include:
❐
Quick reference to the iDEN organization, answers to frequently asked
questions, and definitions to iDEN acronyms.
❐
Product training information; including course descriptions, prerequisites,
training planning tools, schedules, pricing, and registration information.
❐
New product announcements and marketing bulletins.
❐
System product performance and customer satisfaction.
To request an account for iDEN online, please call 847-576-9541.
14
68P80801E35-A
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EBTS System Manual - Vol 1
System Installation and Testing
Reference Materials (MSER)
Maintenance Philosophy
The EBTS has been designed using a Field Replaceable Unit (FRU) maintenance
concept. To minimize system down time, faulty FRUs may be quickly and easily
replaced with replacement FRUs. This helps to restore normal system operation
quickly.
Due to the high percentage of surface mount components and multi-layer circuit
boards, field repair is discouraged. Faulty or suspect FRUs should be returned to
the Motorola Customer Support Center for further troubleshooting and repair.
Each FRU has a bar code label attached to its front panel. This label identifies a
sequential serial number for the FRU. Log this number whenever contacting the
Motorola Customer Support Center. For complete information on ordering
replacement FRUs, or instructions on how to return faulty FRUs for repair,
contact:
Nippon Motorola LTD.
Tokyo Service Center
044-366-8860
OR
Motorola Customer Support Center
1311 East Algonquin Road
Schaumburg, Illinois 60196
(800) 448-3245 or (847) 576-7300
Technical Support Service
Motorola provides technical support services for installation, optimization, and
maintenance of its fixed network equipment. Before calling the Motorola
Customer Support Center, please note the following information:
6 8 P 8 0 8 0 1E35- A
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❐
Where the system is located
❐
The date the system was put into service
❐
A brief description of problem
❐
Any other unusual circumstances
15
System Installation and Testing
EBTS System Manual - Vol 1
Available Field Replaceable Units
Available Field Replaceable Units
The items listed in the following tables are available as FRUs. The listings are
divided into the following FRU categories:
16
❐
System General – FRUs that can be used throughout any system
❐
Single Channel Base Radio- FRU used within a Single Channel Base Radio.
❐
800 MHz QUAD Channel Base Radio- FRU used within a QUAD Channel
Base Radio.
❐
900 MHz QUAD Channel Base Radio- FRU used within a QUAD Channel
Base Radio.
❐
Generation 2 Base Radio- FRU used within a Generation 2 Base Radio
❐
Base Radio – FRU used within a Base Radio
❐
GEN 4 Duplexed RFDS – FRUs used within, or exclusively used with, the
following:
❍
An RF Cabinet equipped with an 800 MHz GEN 4 Duplexed RFDS
❍
An Expansion RF Cabinet utilizing GEN 4 Duplexed assemblies
❍
A Single Rack, Redundant Controller (SRRC) and/or Single Rack,
Single Controller (SRSC) EBTS and associated expansion cabinets
❐
Cavity Combining RFDS – FRUs used within, or exclusively used with, an
800 MHz Cavity Combining RFDS
❐
900 MHz Duplexed RFDS – FRUs used within, or exclusively used with, an
900 MHz Duplexed RFDS
❐
900 MHz QUAD RFDS- FRUs used within, or exclusively with, a 900 MHz
QUAD RFDS
❐
Hybrid Expansion RFDS – FRUs used within a Hybrid Expansion RFDS
❐
Site Controller Hardware – FRUs used for site control and alarm
monitoring
68P80801E35-A
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EBTS System Manual - Vol 1
System Installation and Testing
Available Field Replaceable Units
System General FRUs
P/N
Description
TLN3348
Open Rack - 43 Rack Units
TLN3349
Solid Door - 43 Rack Units
TLN3350
Door Louvered - 43 Rack Units
TLN3351
Cover Flat Top Louvered
TLN3352
Cover Base
TLN3353
Base Stationary
55-82097V01
Lock, Standard
Single Channel Base Radio FRUs
P/N
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Description
CLN1282
Integrated Base Radio Chassis
CLN1283
Integrated Receiver Module, 800 MHz
CLN1355
Power Amplifier, 60 Watt, 900 MHz
CLN1356
Integrated Receiver Module, 900 MHz
CLN1357
Exciter Module, 900 MHz
TLF2020
Power Amplifier, 40 Watt, 800 MHz
TLN3334
Base Radio Controller
TLN3335
Power Amplifier, 70 Watt, 800 MHz
TLN3337
Exciter Module, 800 MHz
TLN3338
DC Power Supply Module
TLN3425
Base Radio Controller (DCMA), 1500 MHz
TLN3426
Power Amplifier, 40 Watt, 1500 MHz
TLN3427
Receiver Module, 1500 MHz
TLN3428
Exciter Module, 1500 MHz
TLN3429
AC Power Supply Module (DCMA)
17
System Installation and Testing
EBTS System Manual - Vol 1
Available Field Replaceable Units
Generation 2 FRUs
P/N
Description
CLN1282
Integrated Base Radio Chassis
CLN1283
Integrated Receiver Module, 800 MHz
TLF2020
Power Amplifier, 40 Watt, 800 MHz
DLN6446
Enhanced Base Radio Controller
TLN3335
Power Amplifier, 70 Watt, 800 MHz
DLN1204
Low Noise Exciter
TLN3337
Exciter Module, 800 MHz
TLN3338
DC Power Supply Module
TLN3429
AC Power Supply Module (DCMA)
800 MHz QUAD Channel Base Radio FRUs
P/N
Description
CLN1496
800 MHz QUAD Receiver
CLN1497
800 MHz QUAD Exciter/Base Radio Controller
CLN1498
800 MHz QUAD DC Power Supply
CLN1499
800 MHz QUAD Power Amplifier
DLN1200
800 MHZ QUAD Base Radio Chassis
900 MHz QUAD Channel Base Radio FRUs
P/N
18
Description
DLN1201
900 MHz QUAD Receiver
DLN1203
900 MHz QUAD Exciter/BR Controller
CLN1498
900 MHz QUAD DC Power Supply
DLN1202
900 MHz QUAD Power Amplifier
DLN1200
900 MHz QUAD Base Radio Chassis
68P80801E35-A
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EBTS System Manual - Vol 1
System Installation and Testing
Available Field Replaceable Units
GEN 4 Duplexed RFDS FRUs
800 MHz QUAD
P/N
Description
CLN1349
Power Supply
CLN1350
Triple 2-Way Combiner Deck w/o Isolators
CLN1351
(NOTE 1)
Triple 2-Way Combiner Deck w/o Isolators
CLN1353
Dual 3-Way Combiner Deck w/ Isolators
CLN1362
4-Way Rx Low Noise Amplifier/
Multicoupler Subassembly
CLN1363
6-Way Rx Low Noise Amplifier/
Multicoupler Subassembly
CLN1366A
900 MHz QUAD
P/N
DLN1206
Triple Through w/Isolators
CLN1401
Alarm Board
CLN1402
I/O Board
CLN1403
Duplexed TTA Field Retrofit Kit
CLN1405
Duplexed TTA Alarm Module
CLN1481
Dual 2-Way Combiner Deck w/ Isolators
NOTES:
1. This item associated with expansion.
Cavity Combining RFDS FRUs
P/N
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Description
CKN1010
Rx Cavity Expansion Hardware: Main to Expansion Cabinet
TLF1900
Low Gain Amplifier Receiver Tray
TLF1980
Tx RF Transfer Switch for 800 MHz Cavity PCCH
TLG1002
Tx RF Transfer Switch for 1500 MHz Cavity PCCH
TLN3392
DC Low-Noise Amplifier Power Supply and Alarm Tray
TLN3393
DC Injector RF Distribution
TLN3394
Power Monitor Assembly
TTF1540
Isolator/Load Assembly
TTF1560
Cavity Combiner Channels 3 & 4
TTF1570
Cavity Combiner Channel 5
19
System Installation and Testing
EBTS System Manual - Vol 1
Available Field Replaceable Units
900 MHz QUAD Duplexed FRUs
P/N
Description
DLN1206
4-Way Rx Multicoupler
DLN 1205
Rx Preselector
See Note 1
900 MHz Duplexer
See Note 1
800/900 MHz Diplexer
NOTE: 1- Refer to iDEN Price Book for FRU details
900 MHz Duplexed RFDS FRUs
P/N
Description
CLN1380
(NOTE 1)
Single 2-Way Combiner Deck w/o Isolators
CLN1381
Triple 2-Way Combiner Deck w/ Isolators
CLN1382
DC & Alarm Expansion Tray
CLN1393
Three-Branch Rx Multicoupler Tray w/ 6-Way
LNAs
CLN1394
(NOTE 1)
6-Way Rx Low Noise Amplifier/Multicoupler
Subassembly
NOTES:
1. This item associated with expansion.
Hybrid Expansion RFDS
P/N
20
Description
CLN1285
Hybrid/Coupler Expansion Load Assembly
CLN1313
Duplexed Retrofit 3 Branch TTA, V03
CLN1314
Duplexed Retrofit 3 Branch TTA, V01
CLN1315
Duplexed Retrofit 3 Branch TTA, V06
CLN1325
Hybrid Expansion Receive Cabling, Primary Rack
TFF1090
Bandpass Transmit Filter
TLF1990
Primary Isolator
TLF2000
Secondary Isolator
TLN3358
Duplexed RF Expansion Tray (Non-5th Channel)
TLN3439
Duplexed RF Expansion Tray (5th Channel)
68P80801E35-A
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EBTS System Manual - Vol 1
System Installation and Testing
Available Field Replaceable Units
Site Control Hardware
P/N
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Description
DLN1103
GEN 3 Site Controller
DLN1107
Environmental Alarm System
DPN1007
Gen3 SC Power Supply
21
System Installation and Testing
EBTS System Manual - Vol 1
General Safety Information
General Safety Information
The following general safety precautions must be observed during all phases of
operation, service, and repair of the equipment described in this manual. The
safety precautions listed below represent warnings of certain dangers of which
we are aware. You should follow these warnings and all other safety precautions
necessary for the safe operation of the equipment in your operating environment.
Read and follow all warning notices and instructions marked on the product or
included in this manual before installing, servicing or operating the equipment.
Retain these safety instructions for future reference. Also, all applicable safety
procedures, such as Occupational, Safety, and Health Administration (OSHA)
requirements, National Electrical Code (NEC) requirements, local code
requirements, safe working practices, and good judgement must be used by
personnel.
Refer to appropriate section of the product service manual for additional
pertinent safety information.
Because of the danger of introducing additional hazards, do not install substitute
parts or perform any unauthorized modifications of equipment.
Identify maintenance actions that require two people to perform the repair. Two
people are required when:
A repair has the risk of injury that would require on person to perform first
aid or call for emergency support. An example would be work around high
voltage sources. A second person may be required to remove power and call
for emergency aid if an accident occurs to the first person.
Use the National Institute of Occupational Safety and Health (NIOSH) listing
equation to determine whether a one or two person lift is required when a
system component must be removed and replaced in its rack.
If troubleshooting the equipment while power is applied, be aware of the live
circuits.
DO NOT operate the transmitter of any radio unless all RF connectors are secure
and all connectors are properly terminated.
All equipment must be properly grounded in accordance with Motorola Standards
and Guidelines for Communications Sites
“R56” 68P81089E50 and specified
installation instructions for safe operation.
Slots and openings in the cabinet are provided for ventillation. To ensure reliable
operation of the product and protect it from overheating, these slots and openings
must not be blocked or covered.
Only a qualified technician familiar with similar electronic equipment should
service equipment.
Some equipment components can become extremely hot during operation. Turn
off all power to the equipment and wait until sufficiently cool before touching.
22
68P80801E35-A
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EBTS System Manual - Vol 1
System Installation and Testing
General Safety Information
Human Exposure Compliance
This equipment is designed to generate and radiate radio frequency (RF) energy
by means of an external antenna. When terminated into a non-radiating RF load,
the base station equipment is certified to comply with Federal Communications
Commission (FCC) regulations pertaining to human exposure to RF radiation in
accordance with the FCC Rules Part 1 section 1.1310 as published in title 47 code
of federal regulations and procedures established in TIA/EIA TSB92, Report on
EME Evaluation for RF Cabinet Emissions Under FCC MPE Guidelines,
Compliance to FCC regulations of the final installation should be assessed and
take into account site specific characteristics such as type and location of
antennas, as well as site accessibility of occupational personnel (controlled
environment) and the general public (uncontrolled environment). This equipment
should only be installed and maintained by trained technicians. Licensees of the
FCC using this equipment are responsible for insuring that its installation and
operation comply with FCC regulations Part 1 section 1.1310 as published in title
47 code of federal regulations.
Whether a given installation meets FCC limits for human exposure to radio
frequency radiation may depend not only on this equipment but also on whether
the “environments” being assessed are being affected by radio frequency fields
from other equipment, the effects of which may add to the level of exposure.
Accordingly, the overall exposure may be affected by radio frequency generating
facilities that exist at the time the licensee’s equipment is being installed or even
by equipment installed later. Therefore, the effects of any such facilities must be
considered in site selection and in determining whether a particular installation
meets the FCC requirements.
FCC OET Bulletin 65 provides materials to assist in making determinations if a
given facility is compliant with the human exposure to RF radiation limits.
Determining the compliance of transmitter sites of various complexities may be
accomplished by means of computational methods. For more complex sites direct
measurement of power density may be more expedient. Additional information
on the topic of electromagnetic exposure is contained in the Motorola Standards and
Guidelines for Communications Sites
publication. Persons responsible for
installation of this equipment are urged to consult the listed reference material to
assist in determining whether a given installation complies with the applicable
limits.
In general the following guidelines should be observed when working in or
around radio transmitter sites:
- All personnel should have electromagnetic energy awareness training.
- All personnel entering the site must be authorized.
- Obey all posted signs.
- Assume all antennas are active.
- Before working on antennas, notify owners and disable appropriate
transmitters.
- Maintain minimum 3 feet clearance from all antennas.
- Do not stop in front of antennas.
- Use personal RF monitors while working near antennas.
- Never operate transmitters without shields during normal operation.
- Do not operate base station antennas in equipment rooms.
6 8 P 8 0 8 0 1E35- A
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23
System Installation and Testing
EBTS System Manual - Vol 1
General Safety Information
For installations outside of the U.S., consult with the applicable governing body
and standards for RF energy human exposure requirements and take necessary
steps for compliance with local regulations.
References:
TIA/EIA TSB92 “Report on EME Evaluation for RF Cabinet Emissions Under
FCC MPE Guidelines”, Global Engineering Documents: http://globl.ihs.com/
FCC OET Bulletin 65 “Evaluating Compliance with FCC Guidelines for Human
Exposure to Radiofrequency Electromagnetic Fields”; http://www.fcc.gov/oet/
rfsaftey/
Motorola Standards and Guidelines for Communications Sites, Motorola manual
68P81089E50
IEEE Recommended Practice for the Measure of Potentially Hazardous
Electromagnetic Fields-- RF and Microwave, IEEE Std. C95.3-1991, Publication
Sales, 445 Hoes Lane, P.O. Box 1331, Piscattaway, NJ 08855-1331
IEEE Standard for Safety Levels with Respect to Human Exposure to Radio
Frequency Electromagnetic Fields, 3 kHz to 300 Iscattaway, NY 08855-1331GHz,
IEEE C95.1-1991, Publication Sales, 445 Hoes Lane, P.O. Box 1331
24
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Global Telecommunications Solutions Sector
ENHANCED BASE TRANSCEIVER SYSTEM (EBTS)
VOLUME 2 OF 3
BASE RADIOS
© 2001 Motorola, Inc.
All Rights Reserved
Printed in U.S.A.
68P80801E35-A
ECCN 5E992
Base Radios
About This Volume
Volume 2 of the Enhanced Base Transceiver System (EBTS) manual, Base Radios ,
provides the experienced service technician with an overview of the EBTS
operation and functions, and contains information regarding the 800 MHz,
900 MHz, 1500 MHz Single Channel and 800 MHz and 900 MHz QUAD Channel
Channel base radios.
The EBTS System has three major components:
❐
Generation 3 Site Controller (Gen 3 SC) or an integrated Site Controller (iSC)
❐
Base Radios (BRs)
❐
RF Distribution System (RFDS)
Installation and testing is described in Volume 1, System Installation and Testing ,
and RFDS are described in Volume 3, RF Distribution Systems (RFDS) . Detailed
information about the Gen 3 SC is contained in the Gen 3 SC Supplement Manual,
68P80801E30. Detailed information about the iSC is contained in the iSC
Supplement Manual, 68P81098E05
The information in this manual is current as of the printing date. If changes to
this manual occur after the printing date, they will be documented and issued as
Schaumburg Manual Revisions (SMRs).
Target Audience
The target audience of this document includes field service technicians
responsible for installing, maintaining, and troubleshooting the EBTS.
In keeping with Motorola’s field replaceable unit (FRU) philosophy, this manual
provides sufficient functional information to the FRU level. Please refer to the
appropriate section of this manual for removal and replacement instructions.
Global Telecommunications Solutions Sector
6 8 P 8 0 8 0 1E35- A 9/1/2001
1301 E. Algonquin Road, Schaumburg, IL 60196
11
Base Radios
EBTS System Manual - Vol 2
Maintenance Philosophy
The EBTS has been designed using a Field Replaceable Unit (FRU) maintenance
concept. To minimize system down time, faulty FRUs may be quickly and easily
replaced with replacement FRUs. This helps to restore normal system operation
quickly.
Due to the high percentage of surface mount components and multi-layer circuit
boards, field repair is discouraged. Faulty or suspect FRUs should be returned to
the Motorola Customer Support Center for further troubleshooting and repair.
Each FRU has a bar code label attached to its front panel. This label identifies a
sequential serial number for the FRU. Log this number whenever contacting the
Motorola Customer Support Center. For complete information on ordering
replacement FRUs, or instructions on how to return faulty FRUs for repair,
contact:
Nippon Motorola LTD.
Tokyo Service Center
044-366-8860
OR
Motorola Customer Support Center
1311 East Algonquin Road
Schaumburg, Illinois 60196
(800) 448-3245 or (847) 576-7300
Technical Support Service
Motorola provides technical support services for installation, optimization, and
maintenance of its fixed network equipment. Before calling the Motorola
Customer Support Center, please note the following information:
12
❐
Where the system is located.
❐
The date the system was put into service.
❐
A brief description of problem.
❐
Any other unusual circumstances.
68P80801E35-A
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EBTS System Manual - Vol 2
Base Radios
General Safety Information
General Safety Information
The following general safety precautions must be observed during all phases of
operation, service, and repair of the equipment described in this manual. The
safety precautions listed below represent warnings of certain dangers of which
we are aware. You should follow these warnings and all other safety precautions
necessary for the safe operation of the equipment in your operating environment.
Read and follow all warning notices and instructions marked on the product or
included in this manual before installing, servicing or operating the equipment.
Retain these safety instructions for future reference. Also, all applicable safety
procedures, such as Occupational, Safety, and Health Administration (OSHA)
requirements, National Electrical Code (NEC) requirements, local code
requirements, safe working practices, and good judgement must be used by
personnel.
Refer to appropriate section of the product service manual for additional
pertinent safety information.
Because of the danger of introducing additional hazards, do not install substitute
parts or perform any unauthorized modifications of equipment.
Identify maintenance actions that require two people to perform the repair. Two
people are required when:
A repair has the risk of injury that would require one person to perform first
aid or call for emergency support. An example would be work around high
voltage sources. A second person may be required to remove power and call
for emergency aid if an accident occurs to the first person.
Use the National Institute of Occupational Safety and Health (NIOSH) listing
equation to determine whether a one or two person lift is required when a
system component must be removed and replaced in its rack.
If troubleshooting the equipment while power is applied, be aware of the live
circuits.
DO NOT operate the transmitter of any radio unless all RF connectors are secure
and all connectors are properly terminated.
All equipment must be properly grounded in accordance with Motorola Standards
and Guidelines for Communications Sites
“R56” 68P81089E50 and specified
installation instructions for safe operation.
Slots and openings in the cabinet are provided for ventilation. To ensure reliable
operation of the product and protect it from overheating, these slots and openings
must not be blocked or covered.
Only a qualified technician familiar with similar electronic equipment should
service equipment.
Some equipment components can become extremely hot during operation. Turn
off all power to the equipment and wait until sufficiently cool before touching.
6 8 P 8 0 8 0 1E35- A
9/1/2001
13
Base Radios
EBTS System Manual - Vol 2
General Safety Information
Human Exposure Compliance
This equipment is designed to generate and radiate radio frequency (RF) energy
by means of an external antenna. When terminated into a non-radiating RF load,
the base station equipment is certified to comply with Federal Communications
Commission (FCC) regulations pertaining to human exposure to RF radiation in
accordance with the FCC Rules Part 1 section 1.1310 as published in title 47 code
of federal regulations and procedures established in TIA/EIA TSB92, Report on
EME Evaluation for RF Cabinet Emissions Under FCC MPE Guidelines,
Compliance to FCC regulations of the final installation should be assessed and
take into account site specific characteristics such as type and location of
antennas, as well as site accessibility of occupational personnel (controlled
environment) and the general public (uncontrolled environment). This equipment
should only be installed and maintained by trained technicians. Licensees of the
FCC using this equipment are responsible for insuring that its installation and
operation comply with FCC regulations Part 1 section 1.1310 as published in title
47 code of federal regulations.
Whether a given installation meets FCC limits for human exposure to radio
frequency radiation may depend not only on this equipment but also on whether
the “environments” being assessed are being affected by radio frequency fields
from other equipment, the effects of which may add to the level of exposure.
Accordingly, the overall exposure may be affected by radio frequency generating
facilities that exist at the time of the licensee’s equipment is being installed or
even by equipment installed later. Therefore, the effects of any such facilities must
be considered in site selection and in determining whether a particular
installation meets the FCC requirements.
FCC OET Bulletin 65 provides materials to assist in making determinations if a
given facility is compliant with the human exposure to RF radiation limits.
Determining the compliance of transmitter sites of various complexities may be
accomplished by means of computational methods. For more complex sites direct
measurement of power density may be more expedient. Additional information
on the topic of electromagnetic exposure is contained in the Motorola Standards and
Guideline for Communications Sites
publication. Persons responsible for installation
of this equipment are urged to consult the listed reference material to assist in
determining whether a given installation complies with the applicable limits.
In general the following guidelines should be observed when working in or
around radio transmitter sites:
- All personnel should have electromagnetic energy awareness training.
- All personnel entering the site must be authorized.
- Obey all posted signs
- Assume all antennas are active
- Before working on antennas, notify owners and disable appropriate
transmitters.
- Maintain minimum 3 feet clearance from all antennas.
- Do not stop in front of antennas.
- Use personal RF monitors while working near antennas.
- Never operate transmitters without shields during normal operation.
- Do not operate base station antennas in equipment rooms
14
68P80801E35-A
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EBTS System Manual - Vol 2
Base Radios
General Safety Information
For installations outside of the U.S., consult with the applicable governing body
and standards for RF energy human exposure requirements and take necessary
steps for compliance with local regulations.
References:
TIA/EIA TSB92 “Report on EME Evaluation for RF Cabinet Emissions Under
FCC MPE Guidelines”, Global Engineering Documents: http://globl.ihs.com/
FCC OET Bulletin 65 “Evaluating Compliance with FCC Guidelines for Human
Exposure to Radiofrequency Electromagnetic Fields”; http://www.fcc.gov/oet/
rfsaftey/.
Motorola Standards and Guideline for Communications Sites, Motorola manual
68P81089E50.
IEEE Recommended Practice for the Measure of Potentially Hazardous
Electromagnetic Fields-- RF and Microwave, IEEE Std. C95.3-1991, Publication
Sales, 445 Hoes Lane, P.O. Box 1331, Piscattaway, NJ 08855-1331
IEEE Standard for Safety Levels with Respect to Human Exposure to Radio
Frequency Electromagnetic Fields, 3 kHz to 300 GHz, IEEE C95.1-1991,
6 8 P 8 0 8 0 1E35- A
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15
Base Radios
EBTS System Manual - Vol 2
This Page Intentionally
Left Blank
16
68P80801E35-A
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EBTS System Manual - Vol 2
Base Radio
Base Radio
Overview
This chapter provides an overview of the 800/900/1500 MHz Legacy,
800 MHz Generation 2 Single Channel, 800 MHz and 900 MHz QUAD
Channel Base Radios (BRs) along with technical information. The
section topics are listed and described in Table 1.
Section
Page
Description
Generation 2 Single Channel 800
MHz Base Radio Overview
Describes Controls and Indications,
Theory of Operation, and Specifications for
the 800 MHz Generation 2 Base Radio.
QUAD Channel 900 MHz Base Radio
Overview
11
Provides information on the 900 MHz
QUAD Channel Base Radio’s Controls and
Indications, Specifications and Theory of
Operation.
QUAD Channel 800 MHz Base Radio
Overview
16
Provides information on the 800 MHz
QUAD Channel Base Radio’s Controls and
Indications, Specifications and Theory of
Operation.
Legacy Single Carrier 800 MHz Base
Radio Overview
21
This section provides information on the
Legacy Single Channel 800/900/1500MHz
Base Radio including Controls and
Indications, Specifications and Theory of
Operation.
FRU Number to Kit Number Cross Reference
Table 1
FRU Number to Kit Number Cross Reference
Description
6 8 P 8 0 8 0 1E35- A
9/1/2001
FRU Number
Kit Number
Single Channel 800/900/1500 MHz BRC
TLN3334
CLN1469
Single Channel BRC (MCI)
TLN3425
CLN1472
Enhanced Base Radio Controller
DLN6446
CLN1653
900 MHz QUAD Channel BRC
DLN1203
CLF6242
800 MHz QUAD Channel BRC
CLN1497
CLF1560
Base Radio
EBTS System Manual - Vol 2
NOTE
The Single Carrier Base Radio section covers the
800 MHz, 900 MHz and 1500 MHz Legacy and
800 MHz Generation 2 versions of the Base
Radio (BR). Information is presented generally
for all models. Information that is model
specific noted in the text.
NOTE
For Generation 2 BR, both the 800 MHz Exciter and
the 800 MHz Low Noise Exciter modules are
supported subject to Table 2 on page 4.
NOTE
For QUAD Channel 800 MHz BR use, all Single
Carrier BR modules have undergone redesign.
Therefore, Single Carrier BR modules are
incompatible with the QUAD Channel 800 MHz BR.
QUAD Channel 800 MHz BR modules are
incompatible with the Single Carrier BR.
Do not attempt to insert QUAD Channel 800 MHz BR
modules into a Single Carrier BR or Single Carrier BR
modules into a QUAD Channel 800 MHz BR.
NOTE
For QUAD Channel 900 MHz BR use, all Single
Carrier BR modules are incompatable with the 900
MHz QUAD Channel BR. 900 MHz QUAD Channel
BR modules are incompatable with the Single Carrier
BR.
Do not attempt to insert QUAD Channel 900 MHz BR
modules into a Single Carrier BR or Single Carrier BR
modules into a QUAD Channel 900 MHz BR.
68P80801E35-A
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EBTS System Manual - Vol 2
Base Radio
Generation 2 Single Channel 800 MHz Base Radio Overview
Generation 2 Single Channel 800 MHz Base Radio Overview
The BR provides reliable digital RF communication capabilities in a compact
software-controlled design. Increased channel capacity is provided through voice
compression techniques and Time Division Multiplexing (TDM).
The BR contains the five FRUs listed below:
❐
Enhanced Base Radio Controller (EBRC)
❐
Exciter or Low Noise Exciter
❐
Power Amplifier
❐
Power Supply (DC)
❐
Receiver
The modular design of the BR also offers increased shielding and provides easy
handling. All FRUs connect to the backplane through blindmate connectors.
Figure 1 shows the front view of the BR.
3X RECEIVER
INSERT ONLY IN SLOT RX2 WITH BACKPLANE 0183625X
POWER SUPPLY
LOW NOISE EXCITER
SERVICE ACCESS
ENHANCED CONTROL
B R P S E X P A C T L R 1 R 2 RESET
R3
POWER AMPLIFIER
Figure 1
6 8 P 8 0 8 0 1E35- A
9/1/2001
Generation 2 Base Radio (Typical)
EBTS282
101497JNM
Base Radio
EBTS System Manual - Vol 2
Generation 2 Single Channel 800 MHz Base Radio Overview
Generation 2 Single Channel Radio Controls and Indicators
The Power Supply and EBRC contain controls and indicators that provide a
means for monitoring various status and operating conditions of the BR, and also
aid in fault isolation. The controls and indicators for both modules are discussed
in the Power Supply and EBRC sections of this chapter.
The Power Supply contains two front panel indicators; the EBRC contains eight
front panel indicators. The Power Supply contains a power switch used to apply
power to the BR. The EBRC contains a RESET switch used to reset the BR.
Generation 2/EBRC Compatibility
Table 2
EBRC Compatibility
Module
Software Revision
Compatible
Exciter
R01.00.xx- R01.03.xx
No
Exciter
R01.04.xx and higher
Yes
System Software
SR 9.15 or higher
Yes
System Software
Lower than SR 9.15
No
Single Receiver
all versions
No
3X Receiver
all versions
Yes
40W Power Amplifier
all versions
Yes
70W Power Amplifier
all versions
Yes
The Enhanced Base Radio Controller (EBRC) serves as the main controller for the
Base Radio. The EBRC provides signal processing and operational control for
other Base Radio modules. Figure 1 shows a top view of the EBRC module with
the cover removed. The EBRC module consists of two printed circuit boards
(EBRC board and LED display board), a slide-in housing, and associated
hardware.
❐
The EBRC is only compatible with System Software Release SR 9.15 or later.
Any system running an older (i.e. lower revision number) must be updated
to at least SR 9.15 prior to installation.
❐
The EBRC module is compatible with Legacy Base Radios that support
multiple receiver module assemblies.
❐
The EBRC module is not compatible with Legacy Base Radios that support
single receiver module assemblies.
❐
The Generation 2 Base Radio is compatible with all versions of power
supplies.
68P80801E35-A
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EBTS System Manual - Vol 2
Base Radio
Generation 2 Single Channel 800 MHz Base Radio Overview
❐
The Generation 2 Base Radio is compatible with all 800 MHz 70W and 40W
Power Amplifiers.
❐
The EBRC module is only compatible with Legacy Exciter (containing
revision number R1.04.xx and higher) or the Low Noise Exciter.
Determining FRU and Kit Revisions
For Generation 2 BR/EBRC
These commands will return all available FRU and Kit Revision numbers. Use
these to determine installation requirements:
1.
Connect one end of the RS-232 cable to the service computer.
2.
Connect the other end of the RS-232 cable to the Service Access port, located
on the front panel of the EBRC module.
3.
Power on the BR using the front switch on the Power Supply Module. Press
the reset button on the Control Module front panel. At the prompt, hit a
Carriage Return on the service computer to enter the test application mode.
Using the password motorola, log in to the BR.
:> lo g in -u fie ld
p a s swo rd : mo to ro la
field >
4.
Collect revision numbers from the station by typing the
following command:
field > fv -o p la tfo r m
fie ld >
5.
6 8 P 8 0 8 0 1E35- A
9/1/2001
If all modules return revision numbers of the format “Rxx.xx.xx”, then all
revision numbers are present. In that case, verification requires no further
action. If revision numbers return as blank, or not in the format “Rxx.xx.xx”,
contact your local Motorola representative or Technical Support.
Base Radio
EBTS System Manual - Vol 2
Generation 2 Single Channel 800 MHz Base Radio Overview
For Legacy Single Channel BR/BRC
1.
Connect one end of the RS-232 cable to the service computer.
2.
Connect the other end of the RS-232 cable to the STATUS port, located on the
front panel of the BRC.
3.
Using the field password, login to the BR.
4.
Collect revision numbers from the station by typing the
following commands:
BRC>dekey
BRC>test_mode
BRC>get brc_rev_no
BRC>get rx1_rev_no
BRC>get rx2_rev_no
BRC>get rx3_rev_no
BRC>get pa_rev_no
BRC>get ex_rev_no
(if BR is 3 branch)
BRC>
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EBTS System Manual - Vol 2
Base Radio
Generation 2 Single Channel 800 MHz Base Radio Overview
5.
If all modules return revision numbers of the format “Rxx.xx.xx”, then all
revision numbers are present and no further action is required. Log out and
repeat steps 1 through 4 for each additional BR.
If revision numbers were returned as blank or not in the format “Rxx.xx.xx”,
contact your local Motorola representative or Technical Support.
Generation 2 Single Channel BR General Specifications
General specifications for the Generation 2 BR are listed in Table 2.
Table 3
Generation 2 BR General Specifications
Specification
Value or Range
Dimensions:
Height
5 EIA Rack Units (RU)
Width
19" (482.6 mm)
Depth
16.75" (425 mm)
Operating Temperature
32˚ to 104˚ F (0˚ to 40˚ C)
Storage Temperature
-22˚ to 140˚ F (-30˚ to 60˚ C)
Rx Frequency Range:
800 MHz iDEN
806 - 825 MHz
Tx Frequency Range:
800 MHz iDEN
851 - 870MHz
Tx – Rx Spacing:
800 MHz iDEN
45 MHz
Channel Spacing
25 kHz
Frequency Generation
Synthesized
Digital Modulation
M-16QAM
Power Supply Inputs:
VDC
Diversity Branches
6 8 P 8 0 8 0 1E35- A
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-48 VDC (-41 - 60 VDC)
Up to 3
Base Radio
EBTS System Manual - Vol 2
Generation 2 Single Channel 800 MHz Base Radio Overview
Gen 2 Single Channel BR Transmit Specifications
The Generation 2 BR transmit specifications are listed in Table 4.
Table 4
Transmit Specifications
Specification
Value or Range
Average Power Output:
(800 MHz) 40 W PA
5 - 40 W
(800 MHz) 70 W PA
5- 70 W
Transmit Bit Error Rate (BER)
0.01%
Occupied Bandwidth
18.5 kHz
Frequency Stability *
1.5 ppm
RF Input Impedance
50 Ω (nom.)
FCC Designation (FCC Rule Part 90):
(800 MHz) 40 W PA
ABZ89FC5772-A
(800 MHz) 70 W PA
ABZ89FC5763-A
* Stability without site reference connected to station.
Gen 2 Single Channel BR Receive Specifications
The receive specifications are listed in Table 5.
Table 5
Receive Specifications
Specification
Value or Range
Static Sensitivity †:
800 MHz BR
BER Floor (BER = 0.01%)
-108 dBm (BER = 8%)
≥ -80 dBm
IF Frequencies
1st IF (All bands):
73.35 MHz (1st IF)
2nd IF:
800MHz
450 kHz (2nd IF)
Frequency Stability *
1.5 ppm
RF Input Impedance
50 Ω (nom.)
FCC Designation (FCC Rule Part 15):
800 MHz BR
ABZ89FR5762
† Measurement referenced from single receiver input port of BR.
* Stability without site reference connected to station.
68P80801E35-A
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Base Radio
EBTS System Manual - Vol 2
Generation 2 Single Channel 800 MHz Base Radio Overview
Generation2 Single Channel BR Theory of Operation
The BR operates in conjunction with other site controllers and equipment that are
properly terminated. The following description assumes such a configuration.
Figures 5 shows an overall block diagram of the BR.
Power is applied to the DC Power input located on the BR backplane. The DC
Power input is connected if -48 VDC or batteries are used in the site.
Power is applied to the BR by setting the Power Supply power switch to the ON
position. Upon power-up, the BR performs self-diagnostic tests to ensure the
integrity of the unit. These tests are primarily confined to the EBRC and include
memory and Ethernet verification routines.
After the self-diagnostic tests are complete, the BR reports any alarm conditions
present on any of its modules to the site controller via Ethernet. Alarm conditions
may also be verified locally using service computer and the STATUS port located
on the front of the EBRC.
The software resident in Flash Memory on the EBRC registers the BR with the site
controller via Ethernet. Once registered, the BR software is downloaded via
resident FLASH- or Ethernet and is executed from RAM. Operating parameters
for the BR are included in this download. This software allows the BR to perform
call processing functions.
The BR operates in a TDMA (Time Division Multiple Access) mode. This mode,
combined with voice compression techniques, provides an increased channel
capacity ratio of as much as 6 to 1. Both the receive and transmit signals of the BR
are divided into 6 individual time slots. Each receive slot has a corresponding
transmit slot; this pair of slots comprises a logical RF channel.
The BR uses diversity reception for increased coverage area and improved
quality. The Receiver module within the BR contains up to three receivers. Two
Receivers are used with two-branch diversity sites, and three Receivers are used
with three-branch diversity sites.
All Receivers within a given BR are programmed to the same receive frequency.
The signals from each receiver are fed to the EBRC where a diversity combining
algorithm is performed on the signals. The resultant signal is processed for error
correction and then sent to the site controller via Ethernet with the appropriate
control information regarding its destination.
The transmit section of the BR is comprised of two separate FRUs, the Exciter and
Power Amplifier (PA). Several PA FRUs are available, covering different
applications and power levels; these are individually discussed as applicable in
later subsections.
The Exciter processes the information to transmit from the EBRC in the proper
modulation format. This low level signal is sent to the PA where it is amplified to
the desired output power level. The PA is a continuous keyed linear amplifier. A
power control routine monitors the output power of the BR and adjusts it as
necessary to maintain the proper output level.
10
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EBTS System Manual - Vol 2
800/900/1500 MHz Base Radios
Base Radio Overview
3X RECEIVER MODULE
MIXER
FROM
RFDS
(RECEIVER
ANTENNA)
#1
RF IN
FROM
RFDS
(RECEIVER
ANTENNA)
#2
RF IN
FROM
RFDS
(RECEIVER
ANTENNA)
#3
RF IN
DSP BUS
LPF/
PRESELECT/
PREAMP/
IMAGE FILTER
BAND
PASS
FILTER
IF
AMP
BAND
PASS
FILTER
DIGITAL
ATTEN.
CIRCUIT
CUSTOM
RECEIVER
IC
BAND
PASS
FILTER
IF
AMP
BAND
PASS
FILTER
DIGITAL
ATTEN.
CIRCUIT
CUSTOM
RECEIVER
IC
IF
AMP
BAND
PASS
FILTER
DIGITAL
ATTEN.
CIRCUIT
CUSTOM
RECEIVER
IC
MIXER
DSP BUS
LPF/
PRESELECT/
PREAMP/
IMAGE FILTER
DC POWER SUPPLY MODULE
MIXER
BAND
PASS
FILTER
AGC
ADDRESS DECODE,
MEMORY,
A/D CONVERTER
267 KHZ
START-UP
INVERTER
CIRCUITRY
133 KHZ
SERIAL BUS
3-WAY
SPLITTER
SPI BUS
+14.2 V
INVERTER
CIRCUITRY
2.1 MHZ
+5 V
INVERTER
CIRCUITRY
SPI BUS
5 MHZ
EXTERNAL
REFERENCE
EXTERNAL
DC INPUT
41 - 60 VDC
133 KHZ
CLOCK
GENERATOR
CIRCUITRY
VCO/
SYNTH
INPUT FILTER
BOARD
MAIN INVERTER
CIRCUITRY
DSP BUS
LPF/
PRESELECT/
PREAMP/
IMAGE FILTER
+14.2 VDC
TO BACKPLANE
+5 VDC
TO BACKPLANE
+28 VDC
TO BACKPLANE
5 MHZ
16.8 MHZ
SPI BUS
PLL/
VCO
ETHERNET
INTERFACE
SPI BUS
TO/FROM
ETHERNET
DATA/CLOCK
ENHANCED
BASE RADIO CONTROLLER
MODULE
SPI BUS
DIAGNOSTICS
CIRCUITRY
SPI BUS
EXCITER MODULE
TO/FROM
STATUS
PORT
(RS-232)
HOST
µP
SDRAM
BUFFERS
IO
LATCHES
FLASH
EEPROM
2.1 MHZ
TISIC
TRANSMIT
DSP
970 MHZ
(1025 MHZ)
VCO/SYNTH
FREQUENCY
DOUBLER
SPI BUS
RECEIVE
DSP
1PPS &
SLOT
TIMING
TRANLIN
IC
DATA/CLOCK
POWER AMPLIFIER MODULE
SPI BUS
IF IN
ADDRESS DECODE,
MEMORY, A/D CONVERTER
237 MHZ
(180.6 MHZ)
VCO
IF OUT
ADDRESS DECODE,
MEMORY, A/D CONVERTER
TO
RFDS
(TRANSMIT
ANTENNA)
RF OUT
EXCITER
IC
RF FEEDBACK
COMBINER
FEEDBACK IN
RF OUT
FINAL
LINEAR
AMPS
SPLITTER
LINEAR
DRIVER
RF IN
NOTES:
1. 2-Branch systems must have a 50Ω load (P/N 5882106P03) installed on Antenna Port #3.
2. Set the RX_FRU_CONFIG parameter as follows:
2-Branch Systems: 12
3-Branch Systems: 123
3. Where two frequencies are given, frequency without parentheses applies to 800 MHz BR only and frequency with parentheses applies to 900 MHz BR only.
68P 80801E 35- A
9/1/2001
LINEAR RF
AMPLIFIER
EBTS284
053001JNM
Figure 5
Generation 2 Single Channel 800 MHz Base Radio Functional Block Diagram
27
Base Radio Controllers
Overview
This chapter provides information on Base Radio Controllers (BRCs):
Chapter Topic
Page
Description
Enhanced Base Radio Controller
Includes information on the Enhanced Base Radio
Controller’s Controls and Indications and Theory of
Operation
900 MHz QUAD Channel Base Radio
Controller
15
Provides an 800 MHz QUAD Channel BRC Controls and
Indications as well as the controller’s Theory of Operation
800 MHz QUAD Channel Base Radio
Controller
25
Provides an overview, 800 MHz QUAD Channel BRC
Controls and Indications as well as the controller’s Theory of
Operation
800/900/1500 MHz Legacy Base Radio
Controller
35
Provides an overview, outline of controls and indications as
well as the controller’s Theory of Operation
FRU Number to Kit Number Cross Reference
Base Radio Controller (BRC) Field Replaceable Units (FRUs) are available for the
iDEN EBTS. The FRU contains the BRC kit and required packaging. Table 1
provides a cross reference between BRC FRU numbers and kit numbers.
Table 1
FRU Number to Kit Number Cross Reference
Description
FRU Number
Kit Number
Single Channel 800/900/1500 MHz Base Radio
Controller
TLN3334
CLN1469
Single Channel Base Radio Controller
(1500 MHz MCI)
TLN3425
CLN1472
Enhanced Base Radio Controller
DLN6446
CLN1653
CLN1497
CLF1560
QUAD Channel 900 MHz Exciter/BR Controller
QUAD Channel 800 MHz Exciter/BR Controller
Global Telecommunications Solutions Sector
6 8 P 8 0 8 0 1E35- A 9/1/2001
1301 E. Algonquin Road, Schaumburg, IL 60196
Base Radio Controllers
EBTS System Manual - Vol 2
Enhanced Base Radio Controller
Enhanced Base Radio Controller
Enhanced Base Radio Controller Overview
Generation 2 BR/EBRC Compatibility
Table 2
Module
EBRC Compatibility
Software Revision
Compatible
Exciter
R01.00.xx- R01.03.xx
No
Exciter
R01.04.xx and higher
Yes
System Software
SR 9.15 or higher
Yes
System Software
Lower than SR 9.25
No
Single Receiver
all versions
No
3X Receiver
all versions
Yes
40W Power Amplifier
all versions
Yes
70W Power Amplifier
all versions
Yes
The Enhanced Base Radio Controller (EBRC) serves as the main controller for the
Base Radio. The EBRC provides signal processing and operational control for
other Base Radio modules. Figure 1 shows a top view of the EBRC with the cover
removed. The EBRC module consists of two printed circuit boards (EBRC board
and LED/display board), a slide-in housing, and associated hardware.
❐
The EBRC is only compatible with System Software Release SR 9.15 or
newer. Any system running an older (i.e. lower revision number) must be
updated to at least SR 9.15 prior to installation.
❐
The EBRC is compatible with Legacy Base Radios that support 3X receiver
module assemblies.
❐
The EBRC is not compatible with Legacy Base Radios that support single
receiver module assemblies.
❐
The Generation 2 Base Radio is compatible with all versions of power
supplies.
❐
The Generation 2 Base Radio is compatible with all 800 MHz 70W and 40W
Power Amplifiers.
❐
The EBRC is only compatible with Legacy Exciter (with firmware Level
R1.04.xx and higher) or the Low Noise Exciter.
68P80801E35-A
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EBTS System Manual - Vol 2
Base Radio Controllers
Enhanced Base Radio Controller
Determining FRU and Kit Revisions
For Generation 2 BR/EBRC
These commands will return all available FRU and Kit Revision numbers. Use
these to determine installation requirements:
1.
Connect one end of the RS-232 cable to the service computer.
2.
Connect the other end of the RS-232 cable to the Service Access port, located
on the front panel of the EBRC module.
3.
Power on the BR using the front switch on the Power Supply Module. Press
the reset button on the Control Module front panel. At the prompt, hit a
Carriage Return on the service computer to enter the test application mode.
Using the password motorola, log in to the BR.
:> lo g in -u fie ld
p a s swo rd : mo to ro la
field >
4.
Collect revision numbers from the station by typing the
following command:
field > fv -o p la tfo r m
fie ld >
5.
If all modules return revision numbers of the format “Rxx.xx.xx”, then all
revision numbers are present. In that case, verification requires no further
action. If revision numbers return as blank, or not in the format “Rxx.xx.xx”,
contact your local Motorola representative or Technical Support.
For Legacy Single Channel BR/BRC
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1.
Connect one end of the RS-232 cable to the service computer.
2.
Connect the other end of the RS-232 cable to the STATUS port, located on the
front panel of the BRC.
3.
Using the field password, login to the BR.
Base Radio Controllers
EBTS System Manual - Vol 2
Enhanced Base Radio Controller
4.
Collect revision numbers from the station by typing the
following commands:
BRC>dekey
BRC>test_mode
BRC>get brc_rev_no
BRC>get rx1_rev_no
BRC>get rx2_rev_no
BRC>get rx3_rev_no
BRC>get pa_rev_no
BRC>get ex_rev_no
(if BR is 3 branch)
BRC>
5.
If all modules return revision numbers of the format “Rxx.xx.xx”, then all
revision numbers are present and no further action is required. Log out and
repeat steps 1 through 4 for each additional BR.
If revision numbers were returned as blank or not in the format “Rxx.xx.xx”,
contact your local Motorola representative or Technical Support.
EBRC Description
The EBRC memory contains the operating software and codeplug. The software
defines BR operating parameters, such as output power and operating frequency.
The EBRC connects to the Base Radio backplane with one 96-pin Euro connector
and one blindmate RF connector. Two Torx screws secure the EBRC in the Base
Radio chassis.
Figure 1 shows a top view of the EBRC (model CLN1653) with the cover removed.
The EBRC module contains the main board, CLN7428 and LED board, CLN7208.
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Base Radio Controllers
Enhanced Base Radio Controller
Figure 1
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Enhanced Base Radio Controller, version CLN1653 (with cover removed)
Base Radio Controllers
EBTS System Manual - Vol 2
Enhanced Base Radio Controller
Enhanced Base Radio Controller Controls and Indicators
The EBRC monitors the functions of other Base Radio modules. The LEDs on the
front panel indicate the status of EBRC-monitored modules. The CTL LED on the
front panel light momentarily on initial BR power-up and on BR resets. Figure 2
shows the front panel of the EBRC.
SERVICE ACCESS
ENHANCED CONTROL
B R P S E X P A C T L R 1 R 2 RESET
R3
EBTS316g
06701SJW
Figure 2
EBRC (Front View)
Indicators
Table 3 lists and describes the EBRC LEDs.
Table 3
LED
BR
PS
EX
PA
EBRC Indicators
Color
Green
Red
Red
Red
Module
Monitored
Condition
BR
Solid (on)
Station is keyed
Flashing (on)
Station is not keyed
Off
Station is out of service or power is
removed
Solid (on)
FRU failure indication - Power Supply
has a major alarm and is out of service
Flashing (on)
Power Supply has a minor alarm and
may be operating at reduced
performance
Off
Power Supply under normal operation
(no alarms)
Solid (on)
FRU failure indication - Exciter has a
major alarm and is out of service
Flashing (on)
Exciter has a minor alarm and may be
operating at reduced performance
Off
Exciter under normal operation
(no alarms)
Solid (on)
FRU failure indication - PA has a major
alarm and is out of service
Flashing (on)
PA has a minor alarm and may be
operating at reduced performance
Off
PA under normal operation (no
alarms)
Power
Supply
Exciter
Power
Amplifier
Indications
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Base Radio Controllers
Enhanced Base Radio Controller
Table 3
EBRC Indicators (Continued)
LED
Color
Module
Monitored
Condition
Red
Controller
Solid (on)
CTL
Indications
FRU failure indication - BRC has a
major alarm and is out of service.
NOTE:
R1
Red
R2
Receiver #1,
#2, or #3
R3
Flashing (on)
BRC has a minor alarm and may be
operating at reduced performance
Off
BRC under normal operation (no
alarms)
Solid (on)
FRU failure indication - Receiver (#1,
#2, or #3) has a major alarm and is out
of service
Flashing (on)
Receiver (#1, #2, or #3) has a minor
alarm and may be operating at
reduced performance
Off
Receiver (#1, #2, or #3) under normal
operation (no alarms)
Controls
Table 4 lists the controls and descriptions.
Table 4
EBRC Controls
Control
Description
RESET Switch
A push-button switch used to manually reset the BR.
STATUS
connector
A 9-pin connector used for connection of a service computer, providing a
convenient means for testing and configuring.
STATUS Connector
Table 5 the pin-outs for the STATUS connector.
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EBTS System Manual - Vol 2
Enhanced Base Radio Controller
Table 5
Pin-outs for the STATUS Connector
Pin-out
Signal
not used
TXD
RXD
not used
GND
not used
not used
not used
not used
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Base Radio Controllers
Enhanced Base Radio Controller
Enhanced Base Radio Controllers Theory of Operation
Table 6 briefly describes the EBRC circuitry. Figure 15 is a functional block
diagram of the EBRC.
Table 6
EBRC Circuitry
Circuit
Description
Host Microprocessor
Contains integrated circuits that comprise the central controller
of the EBRC and station
Non-Volatile Memory
Consists of:
• FLASH containing the station operating software
• EEPROM containing the station codeplug data
Volatile Memory
Contains SDRAM to store station software used to execute
commands.
Ethernet Interface
Provides the EBRC with a 10Base2 Ethernet communication
port to network both control and compressed voice data
RS-232 Interface
Provides the EBRC with an RS-232 serial interface
Digital Signal Processors
Performs high-speed modulation/demodulation of
compressed audio and signaling data
TISIC
Contains integrated circuits that provide timing reference
signals for the station
TX Reclock
Contains integrated circuits that provide highly stable,
reclocked transmit signals and peripheral transmit logic
Station Reference Circuitry
Generates the 16.8 MHz and 48 MHz reference signals used
throughout the station
Input Ports
Contains 16 signal input ports that receive miscellaneous
inputs from the BR
Output Ports
Contains 40 signal output ports, providing a path for sending
miscellaneous control signals to circuits throughout the BR
Remote Station Shutdown
Provides software control to cycle power on the BR
MPC860 Host Microprocessor
The MPC860 host microprocessor is the main controller for the BR. The processor
operates at a 50-MHz clock speed. The processor controls Base Radio operation
according to station software in memory. Station software resides in FLASH
memory. For normal operation, the system transfers this software to non-volatile
memory. An EEPROM contains the station codeplug.
NOTE
At BR power-up, the EBRC LED indicates a major
alarm. This indication continues until BR software
achieves a predetermined state of operation.
Afterward, the software turns off the EXBRC LED.
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Enhanced Base Radio Controller
Serial Communication Buses
The microprocessor provides a general-purpose SMC serial management
controller bus.
The SMC serial communications bus is an asynchronous RS-232 interface with no
hardware handshake capability. The BRC front panel includes a nine-pin, D-type
connector. This connector provides a port where service personnel may connect a
service computer. Service personnel can perform programming and maintenance
tasks via Man-Machine Interface (MMI) commands. The interface between the
SMC port and the front- panel STATUS connector is via EIA-232 Bus Receivers
and Drivers.
Host Processor
The microprocessor incorporates 4k bytes of instruction cache and 4k bytes of
data cache that significantly enhance processor performance.
The microprocessor has a 32-line address bus. The processor uses this bus to
access non-volatile memory and SDRAM memory. Via memory mapping, the
processor also uses this bus to control other BRC circuitry.
The microprocessor uses its Chip Select capability to decode addresses and assert
an output signal. The eight chip-select signals select non-volatile memory,
SDRAM memory, input ports, output ports, and DSPs.
The Host processor...
❐
Provides serial communications between the Host Microprocessor and other
Base Radio modules.
❐
Provides condition signals necessary to access SDRAM.
❐
Accepts interrupt signals from EBRC circuits (such as DSPs).
❐
Organizes the interrupts, based on hardware-defined priority ranking.
❐
The Host supports several internal interrupts from its Communications
Processor Module. These interrupts allow efficient use of peripheral
interfaces.
❐
The Host supports 10 Mbps Ethernet/IEEE 802.3.
❐
Provides a 32-line data bus transfers data to and from EBRC SDRAM and
other BRC circuitry. Buffers on this data bus allow transfers to and from
non-volatile memory, general input and output ports and DSPs.
Non-Volatile Memory
Base Radio software resides in 2M x 32 bits of FLASH memory. The Host
Microprocessor addresses the FLASH memory with 20 of the host address bus’ 32
lines. The host accesses FLASH data over the 32-line host data bus. A
host-operated chip-select line provides control signals for these transactions.
The FLASH contains the operating system and application code. The system
stores application code in FLASH for fast recovery from reset conditions.
Application code transfers from network or site controllers may occur in a
10
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Base Radio Controllers
Enhanced Base Radio Controller
background mode. Background mode transfers allow the station to remain
operational during new code upgrades.
The data that determines the station personality resides in a 32K x eight bit
codeplug EEPROM. The microprocessor addresses the EEPROM with 15 of the
host address bus’ 32 lines. The host accesses EEPROM data with eight of the data
bus’ 32 lines. A host-operated chip-select line provides control signals for these
transactions.
During the manufacturing process, the factory programs the codeplug’s default
data. The BRC must download field programming data from network and site
controllers. This data includes operating frequencies and output power level. The
station permits adjustment of many station parameters, but the station does not
store these adjustments. Refer to the Software Commands chapter for additional
information.
Volatile Memory
Each BRC contains 8MB x 32 bits of SDRAM. The BRC downloads station
software code into SDRAM for station use. SDRAM also provides short-term
storage for data generated and required during normal operation. SDRAM is
volatile memory. A loss of power or system reset destroys SDRAM data.
The system performs read and write operations over the Host Address and Data
buses. These operations involve column and row select lines under control of the
Host processor’s DRAM controller. The Host address bus and column row signals
sequentially refresh SDRAM memory locations.
Ethernet Interface
The Host processor’s Communications Processor Module (CPM) provides the
Local Area Network (LAN) Controller for the Ethernet Interface. The LAN
function implements the CSMA/CD access method, which supports the IEEE
802.3 10Base2 standard.
The LAN coprocessor supports all IEEE 802.3 Medium Access Control, including
the following:
❐
framing
❐
preamble generation
❐
stripping
❐
source address generation
❐
destination address checking
The PCM LAN receives commands from the CPU.
The Ethernet Serial Interface works directly with the CPM LAN to perform the
following major functions:
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❐
10 MHz transmit clock generation (obtained by dividing the 20 MHz signal
provided by on-board crystal)
❐
Manchester encoding/decoding of frames
11
Base Radio Controllers
EBTS System Manual - Vol 2
Enhanced Base Radio Controller
❐
electrical interface to the Ethernet transceiver
An isolation transformer provides high-voltage protection. The transformer also
isolates the Ethernet Serial Interface (ESI) and the transceiver. The pulse
transformer has the following characteristics:
❐
Minimum inductance of 75 µH
❐
2000 V isolation between primary and secondary windings
❐
1:1 Pulse Transformer
The Coaxial Transceiver Interface (CTI) is a coaxial cable line driver and receiver
for the Ethernet. CTI provides a 10Base2 connection via a coaxial connector on the
board. This device minimizes the number of external components necessary for
Ethernet operations.
A DC/DC converter provides a constant voltage of -9 Vdc for the CTI from a
3.3 Vdc source.
The CTI performs the following functions:
❐
Receives and transmits data to the Ethernet coaxial connection
❐
Reports any collision that it detects on the coaxial connection
❐
Disables the transmitter when packets are longer than the legal length
(Jabber Timer)
Digital Signal Processors
The BRC includes two Receive Digital Signal Processors (RXDSPs) and a Transmit
Digital Signal Processor (TXDSP). These DSPs and related circuitry process
compressed station transmit and receive audio or data. The related circuitry
includes the TDMA Infrastructure Support IC (TISIC) and the TISIC Interface
Circuitry. The DSPs only accept input and output signals in digitized form.
The RXDSP inputs are digitized receiver signals. The TXDSP outputs are digitized
voice audio and data (modulation signals). These signals pass from the DSP to the
Exciter portion of the EXBRC. DSPs communicate with the Microprocessor via an
eight-bit, host data bus on the host processor side. For all DSPs, interrupts drive
communication with the host.
The RXDSP operates from an external 16.8 MHz clock, provided by the local
station reference. The RXDSP internal operating clock signal is 150MHz,
produced by an internal Phase-Locked Loop (PLL).
The RXDSP accepts digitized signals from the TISIC device through the RxDSP
parallel bus. The RXDSP supports a single carrier (single 3 branch receiver) digital
data input.
The RXDSP accesses its DSP program and signal-processing algorithms in 128k
words of internal memory. The RXDSP communicates with the host bus on an
8-bit interface.
Additionally, a serial control path connects the two RXDSPs and the TXDSP. The
Synchronous Communications Interface (SCI) port facilitates this serial control
path.
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Enhanced Base Radio Controller
For initialization and control purposes, the RXDSP connects to the TISIC device.
The TXDSP operates at an external clock speed of 16.8 MHz, provided by the
EBRC local station reference. The TXDSP internal operating clock is 150MHz,
produced by an internal Phase Lock Loop (PLL).
The TXDSP sends one carrier of digitized signal to the TISIC to reformat the date
before sending it to the exciter. The exciter converts the digital signal to analog.
The TXDSP contains its own, internal address and data memory. The TXDSP can
store 128k words of DSP program and data memory. An eight-bit interface
handles TXDSP-to-host bus communications.
TISIC
The TISIC controls internal DSP operations. This circuit provides the following
functions:
❐
For initialization and control, interfaces with the RXDSP via the DSP
address and data buses.
❐
Accepts a 16.8 MHz signal from Station Reference Circuitry.
❐
Accepts a 5 MHz signal, modulated with one pulse per second (1 PPS) from
the site reference.
❐
Demodulates the 1 PPS from the modulated 5 MHz signal
❐
Outputs a 1 PPS signal and a windowed version of this signal for network
timing alignment.
❐
Outputs a 2.1 MHz reference signal used by the Exciter and Receiver(s).
❐
Generates 15 ms and 7.5 ms ticks. (These ticks synchronize to the 1 PPS time
mark. The system decodes the time mark from the site reference. Then the
system routes the reference to the TXDSP and RXDSP.)
❐
Provides a 4.8 MHz reference signal. This signal is used by the Exciter to
clock data into the TRANLIN
❐
Accepts differential data from the Receiver(s) (Rx through Rx3) via the
interface circuitry.
❐
Transmits serial control data to the Receiver(s) (Rx through Rx3) via the
serial data bus.
❐
Accepts and formats differential data from the TXDSP for transmission to
the Exciter via interface circuitry.
❐
Generates the Receiver SSI (RxSSI) frame sync interrupt for the RxDSP.
Station Reference Circuitry
The Station Reference Circuitry is a phase-locked loop (PLL). This PLL consists of
a high-stability, Voltage-Controlled, Crystal Oscillator (VCXO) and a PLL IC. GPS
output from the iSC connects to the 5 MHz/1 PPS BNC connector on the BR
backplane. Wiring at this connector routes signals to EXBRC station reference
circuitry.
The PLL compares the 5 MHz reference frequency to the 16.8 MHz VCXO output.
Then the PLL generates a DC correction voltage. The PLL applies this correction
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Base Radio Controllers
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Enhanced Base Radio Controller
voltage to the VCO through an analog gate. The analog gate closes when three
conditions coexist: (1) The 5 MHz tests stable. (2) The PLL IC is programmed. (3)
Two PLL oscillator and reference signal output alignments occur.
A loss in the 5MHz / 1PPS signal causes the control voltage enable switch to
open. This complex PLL control allows the BR to maintain 16.5 MHz capability
during short disconnects (of approximately one minute) of the 5 MHz / 1 PPS
signal. (For example, during 5 MHz / 1 PPS cable maintenance work.)
When the gate enables, the control voltage from the PLL can adjust the
high-stability VCXO frequency. The adjustment can achieve a stability nearly
equivalent to that of the external, 5 MHz frequency reference.
The correction voltage from the PLL continuously adjusts the VXCO frequency.
The VXCO outputs a 16.8 MHz clock signal. The circuit applies this clock signal to
the receiver, and TISIC.
The TISIC divides the 16.8 MHz signal by seven, and outputs a 2.1 MHz signal.
This output signal then becomes the 2.1 MHz reference for the Exciter and
Receiver(s).
Input Ports
One general-purpose input register provides for EBRC and station circuit input
signals. The register has 16 input ports. The Host Data Bus conveys input register
data to the Host Microprocessor. Typical inputs include 16.8 Station Reference
Circuitry status outputs and reset status outputs.
Output Ports
Two general-purpose output registers distribute control signals from the Host
Microprocessor to the BRC and station circuitry. One register has 32 output ports
and the other register has 8 output ports. Control signal distribution occurs over
the backplane. The Host Data Bus drives the output ports’ latched outputs.
Typical control signals include front-panel LED signals and SPI peripheral enable
and address lines.
Remote Station Shutdown
The EBRC contains power supply shutdown circuitry. This circuitry can send a
shutdown pulse to the Base Radio Power Supply. BRC software generates the
shutdown control pulse.
After receiving a shutdown pulse, the power supply turns off BR power. Shut
down power sources include 3.3, 5.1, 28.6 and 14.2 Vdc sources throughout the
BR. Due to charges retained by BR storage elements, power supply voltages may
not reach zero. The shutdown only assures that the host processor enters a
power-on-reset state.
A remote site uses the shutdown function to perform a hard reset of all BR
modules.
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EBTS System Manual - Vol 2
Base Radio Controller
Enhanced Base Radio Controller
Functional Block Diagram
Model CLN1653A
LED
CONTROL
LINES
HOST
LATCH
P0 OUT
12
BASE
RADIO
POWER
SUPPLY
EXCITER
PA
CTL
RX1
RX2
R3
FRONT PANEL LEDS
28V
P0_OUT
5MHZ_1PPS
BASE RADIO
INPUT
5MHZ
1PPS
SYNTHESIZER
IC / CIRCUITRY
PHASE
DETECTION/
FILTERING/
CONTROL
STEARING
LINE
HIGH
STABILITY
VCXO
SHUTDOWN
CIRCUITRY
SHUTDOWN
(TO POWER
SUPPLY)
REMOTE STATION
SHUTDOWN CIRCUITRY
16.8 MHZ
SPI
BUS
DISCONNECT/
CONNECT
CONTROL
STATION REFERENCE CIRCUITRY
Figure 15
51
Enhanced Base Radio Controller Functional Block Diagram
(Sheet 1 of 2)
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800/900/1500 MHz Base Radios
EBTS System Manual - Vol 2
Base Radio Controller
EnhancedBase Radio Controller
FRONT PANEL
RESET
5MHZ
1PPS
Functional Block Diagram
Model CLN1653A
SERIAL MANAGEMENT CONTROLLER (SMC2)
EIA-232
BUS
RECEIVERS/
DRIVERS
STATUS PORT
(9 PIN D CONNECTOR
ON BRC FRONT PANEL)
SCC1
ETHERNET
SERIAL
INTERFACE
CLSN
ETHERNET
SERIAL
INTERFACE
SERIAL CONTROL DATA
TO RECEIVER 2
SERIAL CONTROL DATA
TO RECEIVER 3
DIFFERENTIAL
TO SINGLE END
RX2 SERIAL DATA
DATA CLOCK 2
DIFFERENTIAL
TO SINGLE END
RX3 SERIAL DATA
DATA CLOCK 3
ETHERNET INTERFACE
SERIAL CONTROL DATA
TO RECEIVER 1
DIFFERENTIAL
TO SINGLE END
RX1 SERIAL DATA
DATA CLOCK 1
RECEIVE
DIGITAL
SIGNAL
PROCESSOR
(RX DSP 1)
CD
ISOLATION
TRANSFORMER
RCV
RX
TRMT
TRANSCEIVER
TX
AGC TO
ALL RECEIVERS
AGC
10BASE2
COAX
D[0, 23]
D[0, 8:23]
BUFFER/
SPLITTER
A[0:5]
2.1 MHz
TO EXCITER
AND RECEIVERS
1 PPS TIMING, CONTROL/ SLOT TIMING/RESET
SERIAL PERIPHERAL INTERFACE
SPI BUS
TO/FROM
STATION MODULES
BUFFER
DIGITAL SIGNAL PROCESSING
CIRCUITRY
TISIC
SPI
BUS
NETWORKED
SCI
HOST ADDRESS BUS
EXTENDED HOST
BUS BUFFERS
A[10:31]
HOST
A[0:7]
MICROPROCESSOR
GPLA0, A[8,9,17,18,20:29],RAS,CAS,WE
16
BUFFER
DRAM MEMORY
16
16.8MHZ
HOST-DSP BUFFERED ADDRESS BUS
MA[21:0]
CS2
CS3
SDRAM
4M x 16
SDRAM
4M x 16
SDRAM
4M x 16
D[0:15]
16
16
DSP_A[31:24]
BUFFER
SDRAM
4M x 16
D[16:31]
D[0:31]
HOST-DSP BUFFERED DATA BUS
BUFFER
D[0:15]
16
D[16:31]
BUFFER
16
TRANSMIT
DIGITAL
SIGNAL
PROCESSOR
(TX DSP)
MD[31:0]
D[0:31]
BUFFER
16
16
HOST DATA BUS
D[0:7]
CS4
BUFFER
MA[2:21]
MA[0:14]
MD[0:32]
FLASH
1M x 16
MD[0:15]
FLASH
1M x 16
50 MHZ
CLOCK
MD[16:31]
FLASH
1M x 16
FLASH
1M x 16
P0_IN
BUFFER
MD[0:15]
EEPROM
32k x 8
P0_OUT
LATCH
MD[24:31]
MD[16,17,20-24,28-31]
MD[16:31]
P1_OUT
LATCH
32
MD[24:31]
NON-VOLATILE MEMORY
Figure 16
52
SERIAL DATA AND
CLOCK TO EXCITER
HOST BUFFERED DATA BUS
CS0
CS1
P0_IN
STATUS BUS
FROM
STATION MODULES
SINGLE END
TO DIFFERENTIAL
DSP_D[31:24]
HOST BUFFERED ADDRESS BUS
MA[2:21]
TRANSMIT
SERIAL
DATA
BUS
EXPANDED STATUS INPUT
AND OUTPUT CONTROL CIRCUITRY
40
P0_OUT/P1_OUT
CONTROL BUS
TO
STATION MODULES
Enhanced Base Radio Controller Functional Block Diagram
(Sheet 2 of 2)
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EBTS System Manual - Vol 2
Base Radio Exciter
Base Radio Exciter
Overview
This chapter provides technical information for the Exciter (EX).
Section
Page
Description
800 Legacy MHz Exciter –
TLN3337; 900 MHz Exciter –
CLN1357; 1500 MHz Exciter –
TLN3428
Describes the functions and characteristics of the
Exciter module for the single channel Base Radio
(BR).
Low Noise 800 MHz Exciter
Describes the functions and characteristics of the
Exciter module for the Low Noise Exciter for the
Generation 2 Base Radio (Gen2 BR).
QUAD Channel 900 MHz
Exciter
11
Describes the functions and characters of the 900
MHz QUAD Channel Base Radio (BR)
QUAD Channel 800 MHz
Exciter
15
Describes the functions and characteristics of the
Exciter module for the 800 MHz QUAD channel
Base Radio (BR).
FRU Number to Kit Number Cross Reference
Exciter Field Replaceable Units (FRUs) are available for the iDEN EBTS. The FRU
contains the Exciter kit and required packaging. Table 1 provides a cross reference
between Exciter FRU numbers and kit numbers.
Table 1
FRU Number to Kit Number Cross Reference
Description
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FRU Number
Kit Number
Single Channel Exciter (800 MHz)
TLN3337
CLF1490
Single Channel Exciter (900 MHz)
CLN1357
CLF1500
Single Channel Exciter (1500 MHz)
TLN3428
CTX1120
QUAD Channel 900 MHz Exciter/
Base Radio Controller)
CLN1497
CLF6452
QUAD Channel 800 MHz Exciter/
Base Radio Controller
CLN1497
CLF1560
LNODCT (Low Noise Offset Direct
Conversion Transmit) Exciter (800
MHz)
TLN3337
CLF1789
EBTS System Manual - Vol 2
Base Radio Exciter
Low Noise 800 MHz Exciter
Low Noise 800 MHz Exciter
LNODCT (Low Noise Offset Direct Conversion Transmit) 800 MHz Exciter Overview
The Low Noise Exciter and the Power Amplifier (PA) provide the transmitter
functions of the Generation 2 Base Radio. The Low Noise Exciter module consists
of a printed circuit board, a slide in housing, and associated hardware.
The Low Noise Exciter connects to the Base Radio backplane through a 96-pin
DIN connector and two blindmate RF connectors. Two Torx screws on the front of
the Exciter secure it to the chassis.
There are no controls or indicators on the Exciter. Specifications of the transmitter
circuitry, including the Exciter and PAs, are provided in the Base Radio section of
the manual.
Figure 3 shows the Exciter with the cover removed.
Figure 3
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EBTS System Manual - Vol 2
Low Noise 800 MHz Exciter
Low Noise Exciter Theory of Operation
Table 3 describes the basic circuitry of the Low Noise Exciter. Figures 9 show the
Low Noise Exciter’s functional block diagram.
Table 3
Exciter Circuitry
Circuit
Low Noise IC
Description
• Up-converts baseband data to the transmit frequency
• Down-converts the PA feedback signal to baseband
• Uses a baseband Cartesian feedback loop system, necessary
to obtain linearity from the transmitter and avoid
splattering power into adjacent channels
• Performs training functions for proper linearization of the
transmitter
Memory & A/D Converter
Serves as the main interface between the synthesizer, Tranlin
IC, A/D, and EEPROM on the Exciter, and the BRC via the
SPI bus
Frequency Synthesizer
Circuitry
• Consists of a phase-locked loop and VCO
970 MHz VCO (800 MHz BR)
Provides a LO signal to the Low Noise IC, for up-conversion
to the transmit frequency
90.3 MHz VCO (800 MHz BR)
Provides a LO signal to Low Noise IC, for the up-conversion
and for the down-conversion of the feedback signal.
• Provides a LO signal to the Low Noise IC for the second
up-conversion and first down-conversion of the feedback
signal from the PA
The mixed output becomes the LO signal for Transmit signal
up- and down- conversion
Regulator Circuitry
Provides a regulated voltage to various ICs and RF devices
located on the Exciter
Linear RF amplifier Stages
Amplifies the RF signal from the Exciter IC to an appropriate
level for input to the PA
Memory Circuitry
The memory circuitry is loaded on an EEPROM on the Exciter. The EBRC
performs memory read and write operations via the SPI bus. Information stored
in this memory device includes the kit number, revision number, module-specific
scaling, and correction factors, operations, parameters, and free-form information
(scratch pad) kit number
A/D Converter Circuitry
Analog signals from various areas throughout the Exciter board enter the A/D
converter (A/DC). The A/DC converts these analog signals to digital form. Upon
request of the BRC, A/DC output signals enter the BRC via SPI lines. The
Controller periodically monitors all signals.
Some of the monitored signals include amplifier bias and synthesizer signals.
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Base Radio Exciter
Low Noise 800 MHz Exciter
LNODCT IC Circuitry
The LNODCT IC (Low Noise Offset Direct Conversion Transmit IC) is a main
interface between the Exciter and BRC. The BRC’s Digital Signal Processor (DSP)
sends digitized signals (baseband data) to the Exciter over the DSP data bus.
The differential data clock signal serves as a 2.4 MHz reference signal to the
LNODCT IC’s internal synthesizer. The LNODCT compares the reference signal
with the outputs of Voltage Controlled Oscillators (VCOs). The LNODCT might
sense that a VCO’s output is out of phase or off-frequency. If so, then the
LNODCT sends correction pulses to the VCO. The pulses adjust VCO output,
thereby matching phase and frequency with the reference.
The LNODCT IC up-converts baseband data from the EBRC to the transmit
frequency. The LNODCT IC also down-converts the Transmit signal from the
Power Amplifier to baseband data for cartesian feedback linearization.
The EBRC uses the Serial Peripheral Interface (SPI) bus to communicate with the
LNODCT IC. The SPI bus serves as a general purpose, bi-directional, serial link
between the EBRC and other Base Radio modules, including the Exciter. The SPI
carries control and operational data signals to and from Exciter circuits.
Synthesizer Circuitry
The synthesizer circuit consists of the Phase-Locked Loop (PLL) IC and associated
circuitry. This circuit’s controls the 970 MHz VCO signal. An internal phase
detector generates a logic pulse. This pulse is proportional to the phase or
frequency difference between the reference frequency and loop pulse signal.
The charge pump circuit generates a correction signal. The correction signal
moves up or down in response to phase detector output pulses. The correction
signal passes through the low-pass loop filter. The signal then enters the 970 MHz
Voltage Controlled Oscillator (VCO) circuit.
970 MHz Voltage Controlled Oscillator (VCO)
For proper operation, the VCO requires a very low-noise, DC supply voltage. An
ultra low-pass filter prepares the necessary low-noise voltage and drives the
oscillator.
A portion of the oscillator output signal enters the synthesizer circuitry. The
circuitry uses this feedback signal to generate correction pulses.
The 970 MHz VCO output mixes with the 90.3 MHz VCO output. The result is a
Local Oscillator [LO) signal for the LNODCT IC. The LNODCT uses this LO
signal to up-convert the programmed transmit frequency. The LNODCT also
uses the LO signal to down-convert the PA feedback signal.
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EBTS System Manual - Vol 2
Low Noise 800 MHz Exciter
90.3 MHz Voltage Controlled Oscillator (VCO)
The synthesizer within the LNODCT IC sets the 90.3 MHz signal. The 90.3 MHz
VCO provides a LO signal to the LNODCT IC. The LNODCT uses this signal in
up-converting and down-converting the feedback signal.
Regulator Circuitry
The voltage regulators generate three regulated voltages: +3 Vdc, +5 Vdc and
+11.7 Vdc. The regulators obtain input voltages from the +3.3 Vdc and +14.2 Vdc
backplane voltages. The regulated voltages power various ICs and RF devices in
the Exciter.
Linear RF Amplifier Stages
The linear RF amplifiers boost the RF signal from the LNODCT IC. The RF
Amplifier generates an appropriate signal level to drive the PA.
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800/900/1500 MHz Base Radios
Exciter
970 MHZ
VCO CIRCUITRY
EXCITER IC CIRCUITRY
LNODCT IC CIRCUITRY
RF FEEDBACK
FROM PA MODULE
+10 V
DC
FILTER
DIFFERENTIAL
DATA & CLOCK
FROM
BRC MODULE
PLD
DAC
LNODCT IC
LO
INJECTION
CIRCUITRY
90.3
VCO
CIRCUITRY
CONTROL VOLTAGE
OSCILLATOR
BUFFER
AMP
VCO FEEDBACK
OSCILLATOR
BUFFER
AMP
REGULATOR
CIRCUITRY
ADDRESS DECODE, MEMORY, & A/D
CONVERTER CIRCUITRY
SYNTHESIZER
CIRCUITRY
CHIP
SELECT
+5.0 V FROM BACKPLANE
+14.2 V
FROM
BACKPLANE
ADDRESS BUS
FROM CONTROL
MODULE
SPI BUS (CLOCK & DATA)
FROM BACKPLANE
+3 V
REGULATOR
(U3702)
MEMORY
+3 V
SOURCE
2.4 MHZ
BUFFER
PHASE
LOCKED
LOOP
RIN
IC
CHARGE
PUMP
LOW-PASS
LOOP
FILTER
+11.7 V
SOURCE
+11.7 V
REGULATOR
FIN
VARIOUS
SIGNALS
TO MONITOR
A/D
CONVERTER
+5 V
REGULATOR
VCO
FEEDBACK
+5 V
SOURCE
SPI BUS
TO/FROM CONTROL
MODULE
LINEAR RF AMPLIFIER
CIRCUITRY
RF OUTPUT
TO PA MODULE
NOTE: Where two frequencies are given, frequency without parentheses applies to 800 MHz BR only and frequency with parentheses applies to 900 MHz BR only.
Figure 8
Low Noise Exciter Functional Block Diagram
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EBTS System Manual - Vol 2
Power Amplifier (PA)
Power Amplifier (PA)
Overview
This section provides technical information for the Power Amplifier (PA).
Section
Page
Description
Power Amplifer Overview
Describes the the various Base Radio Power
Amplifier (PAs) for the single channel and QUAD
Channel Base Radios (BR)s.
PA Theory of Operation
Describes the various modules and functions for
the various single channel and QUAD Channel
Base Radios (BRs)
TLF2020 (CLF1772) 40W800 MHz PA Functional
Block Diagram (Sheet 1 of 1)
17
Functional Block Diagram for the 40 Watt, 800
MHz, Single Channel Base Radio Power Amplifier
(PA)
TLN3335 (CLF11771) 70W800 MHz PA Functional
Block Diagram (Sheet 1 of 1)
18
Functional Block Diagram for the 70 Watt, 800
MHz, Single Channel Base Radio Power Amplifier
(PA)
60W- 900 MHz PA
Functional Block Diagram
(Sheet 1 of 1)
19
Functional Block Diagram for the 60 Watt, 900
MHz, Single Channel Base Radio Power Amplifier
(PA)
PA Functional Block
Diagram
20
Functional Block Diagram for the 40 Watt, 1500
MHz, Single Channel Base Radio Power Amplifier
(PA)
800 and 900 MHz QUAD
Channel BR PA Functional
Block Diagram
21
Functional Block Diagram for the 800 MHz QUAD
Channel Base Radio Power Amplifier (PA)
FRU Number to Kit Number Cross Reference
Power Amplifier (PA) Field Replaceable Units (FRUs) are available for the iDEN
EBTS. The FRU contains the PA kit and required packaging. Table 1 provides a
cross reference between PA FRU numbers and kit numbers.
Table 1
FRU Number to Kit Number Cross Reference
Description
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FRU Number
Kit Number
40 W- 800 MHz Single Channel Base Radio PA
TLF2020
CLF1772
70 W- 800 MHz Single Channel Base Radio PA
TLN3335
CLF1771
60 W- 900 MHz Single Channel Base Radio PA
CLN1355
CLF1300
40 W- 1500 MHz Single Channel Base Radio PA
TLN3426
TTG1000
52 W- 900 MHz QUAD Channel Base Radio PA
DLN1202
CTH1082
52 W- 800 MHz QUAD Channel Base Radio PA
CLF1499
CLF1400
Power Amplifier (PA)
EBTS System Manual - Vol 2
Power Amplifer Overview
Power Amplifer Overview
NOTE
The power outputs discussed on this section for the
800 MHz QUAD and 900 MHz QUAD Power
Amplifiers are referenced to the single carrier mode,
operating at 52 W average power output from the
Power Amplifier’s output connector.
The Power Amplifier (PA), with the Exciter, provides the transmitter functions for
the Base Radio. The PA accepts the low-level modulated RF signal from the
Exciter. The PA then amplifies the signal for transmission and distributes the
signal through the RF output connector.
The 800 MHz Base Radio can be equipped with either 40 Watt PA, TLF2020
(version CLF1771) or 70 Watt PA, TLN3335 (version CLF1772). The 40W PA
module consists of five hybrid modules, four pc boards, and a module heatsink/
housing assembly. The 70W PA module consists of eight hybrid modules, four pc
boards, and a module heatsink/housing assembly.
The 900 MHz Base Radio is equipped with 60 Watt PA, CLN1355 (kit no.
CLF1300A). The PA module consists of four hybrid modules, two pc boards, and
a module heatsink/housing assembly.
The 1500 MHz Base Radio is equipped with 40 Watt PA, TLN3426 (version
TTG1000). The PA module consists of four hybrid modules, two pc boards, and
the module heatsink/housing assembly.
The PA connects to the chassis backplane through a 96-pin DIN connector and
three blindmate RF connectors. Two Torx screws located on the front of the PA
hold it in the chassis.
Specifications of the transmitter circuitry, including the Exciter and PAs, are
provided in Base Radio Overview section. Figure 1 shows the 70W, 800 MHz PA.
Figure 2 shows the 60W, 900 MHz PA. Figure 3 shows the 40W, 1500 MHz PA.
Figure 4 shows the 800 MHz QUAD PA (the 900 MHz QUAD PA is similar in
appearance)
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Power Amplifier (PA)
Power Amplifer Overview
NOTE: 70W PA shown. 40W PA is similar.
Figure 1
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EBTS System Manual - Vol 2
Power Amplifier (PA)
PA Theory of Operation
PA Theory of Operation
Table 2 describes the basic functions of the PA circuitry. Figures 5 and 6 show the
functional block diagrams of 40W, 800 MHz and 70W, 800 MHz PA, respectively.
Figure 7 shows the functional block diagram of the 60W, 900 MHz PA. Figure 8
shows a functional block diagram of the 40W, 1500 MHz PA. Figure 9 shows a
functional block diagram of 800 MHz and 900 MHz QUAD PA.
Table 2
Power Amplifier Circuitry
Circuit
DC/Metering Board
Description
• Serves as the main interface between the PA and the backplane board
• Accepts RF input from the Exciter via a blindmate RF connector
• Routes the RF input via a 50 Ω stripline to the Linear Driver Module
RF amplifier
• Routes the RF feedback from the RF Combiner/Peripheral Module
to the Exciter via a blindmate RF connector
• Provides digital alarm and metering information of the PA to the
BRC via the SPI bus
• Routes DC power to the fans and PA
• contains the thermistor that senses the PA temperature (800 MHz
QUAD and 900 MHz QUAD)
Linear Driver Module
(LDM)
• Contains two Class AB stages with the final stage in a parallel
configuration (70W-800 MHz, 40W-800 MHz, 800 MHz QUAD)
• Contains three cascaded Class AB stages with the first two stages
configured as distributed amplifiers and the final stage in parallel
configuration (900 MHz QUAD)
• Contains three cascaded Class AB stages with the final stage in
push-pull configuration (900 MHz)
• Contains four cascaded Class AB stages with the final stage in a
push-pull configuration (1500 MHz)
• Amplifies the low-level RF signal ~25 mW average power from the
Exciter via the DC/Metering Board (900 MHz)
• Amplifies the low level RF signal ~11mW average power from the
Exciter via the DC/Metering Board (70W-800 MHz, 800 MHz
QUAD*, 900 MHz QUAD*)
• Amplifies the low-level RF signal ~8 mW average power from the
Exciter via the DC/Metering Board (40W- 800 MHz, 1500MHz)
• Provides an output of:
~8 W (70W, 800MHz) average power
~4 W (40W, 800 MHz) average power
~6 W (800 MHz QUAD* and 900 MHz QUAD*) average power
~17 W (900MHz) average power
~16 W (1500MHz) average power
Interconnect Board
(70W-800 MHz, 40W-800
MHz, 800 QUAD, and 900
MHz QUAD
• Provides RF interconnection from the LDM to the RF Splitter board
• Provides DC supply filtering
NOTE: * The power outputs described in this section for the 800 QUAD and 900 QUAD PAs are references to the
single carrier mode operating at 52W average power out from the PA output connector.
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PA Theory of Operation
Table 2
Power Amplifier Circuitry (Continued)
Circuit
RF Splitter/DC board
Description
• Interfaces with the DC/Metering Board to route DC power to the
LFMs
• Contains splitter circuits that split the RF output signal of the LDM
to the three Linear Final Modules (40W- 800 MHz)
• Contains splitter circuits that split the RF output signal of the LDM
to the six Linear Final Modules (70W- 800 MHz, 800 MHz QUAD
and 900 MHz QUAD)
• Contains a Quadrature splitter circuit to split the RF output signal of
the LDM to the two Linear Final Modules (900 MHz and 1500 MHz)
Linear Final Module
(LFM)
• Each module contains two Class AB amplifiers in parallel. Each
module amplifies one of three RF signals (~ 84 W average power)
from the LDM (via the Splitter/DC board). Three LFMs provide a
sum RF output of approximately 48 W average power, before losses.
(40W, 800MHz)
• Each module contains two Class AB amplifiers in parallel. Each
module amplifies one of six RF signals (~ 8 W average power) from
the LDM (via the Splitter/DC board). Six LFMs provide a sum RF
output of approximately 97 W average power, before losses. (70W,
800MHz)
• Each module contains two Class AB amplifiers in parallel. Each
module amplifies one of six RF signals (~6W average power) from
the LDM (via the splitter/DC Board). Six LFMs provide a sum RF
output of approximately 73W average power , before losses. (800
MHZ QUAD* and 900 MHz QUAD*)
• Each module contains two Class push-pull AB amplifiers in parallel.
Each module amplifies one of two RF signals (~ 17 W average
power) from the LDM (via the Splitter/DC board). Two LFMs
provide a sum RF output of approximately 75 W average power,
before losses. (900MHz)
• Each module contains two push-pull Class AB amplifiers in parallel.
Each module amplifies one of two RF signals (~ 16 W average
power) from the LDM (via the Splitter/DC board). Two LFMs
provide a sum RF output of approximately 56W average power,
before losses. (1500MHz)
RF Interconnect Board
(40W- 800 MHz PA only)
• Contains three transmission lines that interconnect the LFMs to the
RF Combiner/Peripheral Module
Combiner Board
(70W-800 MHz PA, 800
MHz QUAD, 900 MHz
QUAD)
• Contains three separate Quadrature combiner circuits that
respectively combine the six RF outputs from the LFMs into three
signals. These three signals, in turn, are applied to the RF Combiner/
Peripheral Module.
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Power Amplifier (PA)
PA Theory of Operation
Table 2
Power Amplifier Circuitry (Continued)
Circuit
RF Combiner/Peripheral
Module
Description
• Contains a combiner circuit that combines the three RF signals from
the RF Interconnect Board (40W- 800 MHz PA) or the Combiner
Board (70W-800 MHz PA). It then routes the combined RF signal
through a single stage circulator and a Low Pass Filter. The final
output signal is routed to the blindmate RF connector (40W-800 MHz
and 70W-800 MHz PAs).
• Contains a combiner circuit that combines the three RF signals from
the Combiner Board. It then routes the combined RF signal through a
dual stage circulator and a Low Pass Filter. The final output signal is
routed to the blindmate RF output connector. (800 MHz QUAD and
900 MHz QUAD PAs)
• Contains a Quadrature combiner circuit to combine the RF signal
from the two LFMs. It routes the combined RF signal through a
circulator and a Low Pass Filter. The output signal is routed to the
blindmate RF connector (900 MHz and 1500 MHz PAs)
• Contains an RF coupler that provides an RF feedback signal to the
Exciter via a blindmate RF connector on the DC/Metering Board.
Also contains a forward and reverse power detector for alarm and
power monitoring purposes.
• Contains the thermistor that senses PA temperature and feeds the
signal back to the DC/Metering Board for processing (40W-800
MHz, 70W-800 MHz, 900 MHz and 1500 MHz)
Fan Assembly
• Consists of three fans used to keep the PA within predetermined
operating temperatures
NOTE: * The power outputs described in this section for the 800 QUAD and 900 QUAD PAs are references to the
single carrier mode operating at 52W average power out from the PA output connector.
DC/Metering Board (Non-QUAD PA)
The DC/Metering Board provides the interface between the PA and the Base
Radio backplane. The preamplified/modulated RF signal is input directly from
the Exciter via the Base Radio backplane.
The RF input signal is applied to the input of the Linear Driver Module (LDM).
The RF feedback signal is fed back to the Exciter, where it is monitored for errors.
The primary function of the DC/Metering Boards is to monitor proper operation
of the PA. This information is forwarded to the Base Radio Controller (BRC) via
the SPI bus. The alarms diagnostic points monitored by the BRC on the PA
include the following:
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❐
Forward power
❐
Reflected power
❐
PA temperature sense
❐
Fan Sensor
Power Amplifier (PA)
EBTS System Manual - Vol 2
PA Theory of Operation
DC/Metering Board (QUAD PA Only)
The DC/Metering Board in the QUAD Radio serves the same function as it does
in other radios. However, its circuitry is modified for compatibility with the
QUAD Station. As a result, its logic circuitry is operated at 3.3 VDC.
In addition to the functions listed for non-QUAD versions above, the following
meter points are ported to the SPI bus:
❐
A and B Currents
❐
Thermistor (for PA temperature sensing circuit on the DC/Metering Board)
Linear Driver Module
40W-800 MHz, 70W-800 MHZ and 800 MHZ QUAD PAs
The Linear Driver Module (LDM) amplifies the low-level RF signal from the
Exciter. The LDM consists of a two-stage cascaded Class AB amplifier, with the
final stage in a parallel configuration.
See Table 2 for the approximate input and output levels of the various LDMs. The
LDM output is fed to the RF Splitter/DC Distribution Board via an Interconnect
Board.
900 MHz PA
The Linear Driver Module (LDM) amplifies the low-level RF signal from the
Exciter. The LDM consists of a three-stage, cascaded, Class AB amplifier, with the
first two stages configured as distributed amplifiers and the final stage in a
push-pull configuration. This output is fed directly to the RF Splitter/DC
Distribution Board.
See Table 2 for the approximate input and output power of the 900 MHz LDM.
The LDM output is fed to the RF Splitter/DC Distribution Board via the
Interconnect Board.
1500 MHz PA
The Linear Driver Module (LDM) takes the low level RF signal and amplifies it.
The LDM consists of a four stage, cascaded, Class AB amplifier, with the final
stage configured in push-pull configuration. This output is fed directly to the RF
Splitter/DC Distribution Board.
See Table 2 for the approximate input and output power of the 1500 MHz LDM.
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Power Amplifier (PA)
PA Theory of Operation
900 QUAD PA
The Linear Driver Module (LDM) amplifies the low-level RF signal from the
Exciter. The LDM consists of a three stage, cascaded, Class AB amplifier, with the
final stage in a parallel configuration.
See Table 2 for the approximate input and output power of the 900 MHz QUAD
LDM.
The LDM Output is fed to the RF Splitter/DC Distribution Board via the
Interconnect Board.
Interconnect Board (40W-800 MHz, 70W-800 MHz , 800 MHz QUAD
and 900 MHz QUAD)
The output of the LDM is applied to the Interconnect Board, which provides an
RF connection to the RF Splitter/DC Distribution Board. As a separate function,
area on the Interconnect Board serves as a convenient mounting location for
electrolytic capacitors used for filtering the +28 VDC supply.
RF Splitter/DC Distribution Board
40W-800 MHz, 70W-800 MHz, 800 MHz QUAD and 900 MHz QUAD
The RF Splitter portion of this board accepts the amplified signal from the LDM
(via the Interconnect Board). The primary function of this circuit is to split the RF
signal into drive signals for the LFMs.
In the 40W-800 MHz PA, this circuit splits the drive signal into three separate
paths to be applied to the three LFMs, where the signals will be amplified further.
In the 70W-800 MHz, 800 MHz QUAD and 900 MHZ QUAD PAs, this circuit
splits the drive signal into six separate paths to be applied to the six LFMs, where
the signals will be amplified further.
The DC Distribution portion of this board interfaces directly with the DC/
Metering Board to route DC power to the LFMs.
900 MHz and 1500 MHz
The RF Splitter portion of this board accepts the amplified signal from the LDM.
The primary function of this circuit is to split the RF signal into two separate
paths. These two outputs are fed directly to two separate Linear Final modules
where the RF signals will be amplified further.
The DC Distribution portion of this board interfaces directly with the DC/
Metering Board to route DC power to the LFMs.
Linear Final Modules
40W-800 MHz, 70W-800 MHz, 800 MHz QUAD and 900 MHz QUAD
The RF Splitter output signals are applied directly into the LFMs for final
amplification. Each LFM contains a coupler that splits the LFM input signal and
feeds the parallel Class AB amplifiers that amplify the RF signals.
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Power Amplifier (PA)
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PA Theory of Operation
In the 40W PA, the amplified signals are then combined on the LFM and sent
directly to the RF Interconnect Board. In the 70W PA, the amplified signals are
then combined on the LFM and sent directly to the Combiner Board.
See Table 2 for the approximate total summed output powers of the various
LFMs, before output losses.
900 MHz PA
The RF signals from the outputs of the RF Splitter are applied directly into the
Linear Final Module (LFM) for final amplification. Each LFM contains a
branchline coupler that splits the LFM’s input signal and feeds the dual Class AB
push-pull amplifiers that amplify the RF signals. The amplified signals are then
combined on the LFM and sent directly to the RF Combiner circuit for final
distribution. See Table 2 for the approximate total summed output power of the
900 MHz LFMs, before output losses.
1500 MHz PA
The two RF signals from the outputs of the RF Splitter are input directly into the
Linear Final Module (LFM) for final amplification. Each LFM contains a
branchline coupler that splits the LFM’s input signal and feeds the dual Class AB
push-pull amplifiers that amplify the RF signals. The amplified signals are then
combined on the LFM , via a branchline coupler, and sent directly to the RF
Combiner circuit for final distribution. See Table 2 for the approximate total
summed output power of the 1500 MHz LFMs, before output losses.
The current drains of the 1500 MHz LFMs are monitored by the A/D converter on
the DC/Metering board. A voltage signal representative of the LFM current drain
is sent to the BRC. A Power Amplifier alarm is generated if the signal is outside of
either the upper or lower limits.
RF Interconnect Board (40W- 800 MHz PA Only)
The RF Interconnect Board consists of transmission line paths which route the
three output signals from the LFMs to the three inputs of the RF Combiner/
Peripheral Module.
Combiner Board (40W- 800 MHz, 70W- 800 MHz, 800 MHz QUAD and
900 MHz QUAD PAs)
The Combiner Board combines pairs of signals into single signals, thereby
combining the six signals from the LDMs into three signals. The resulting three
signals are applied to the RF Combiner/Peripheral Module.
RF Combiner/Peripheral Module (40- 800 MHz, 70W- 800 MHz PAs)
This module consists of two portions: an RF combiner and a peripheral module.
The RF Combiner portion of the module combines the three RF signals from the
RF Interconnect Board (40W- 800 MHz PA) or the Combiner Board (70W- 800
MHz PA) into a single signal using a Wilkinson coupler arrangement.
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Power Amplifier (PA)
PA Theory of Operation
Following the combiner circuit, the single combined RF signal is then passed
through a directional coupler which derives a signal sample of the LFM RF power
output. Via the coupler, a sample of the RF output signal is fed to the Exciter, via
the DC/Metering Board, as a feedback signal. Following the coupler, the power
output signal is passed through a single stage circulator, which protects the PA in
the event of high reflected power.
The peripheral portion of the module provides a power monitor circuit that
monitors the forward and reflected power of the output signal. This circuit
furnishes the A/D converter on the DC/Metering Board with input signals
representative of the forward and reflected power levels.
For forward power, a signal representative of the measured value is sent to the
BRC via the SPI bus. The BRC determines if this level is within tolerance of the
programmed forward power level. If the level is not within parameters, the BRC
will issue a warning to the site controller which, in turn, will shut down the
Exciter if required.
Reflected power is monitored in the same manner. The BRC uses the reflected
power to calculate the voltage standing wave ratio (VSWR). If the VSWR is
determined to be excessive, the forward power is rolled back. If it is extremely
excessive, the BRC issues a shut-down command to the Exciter.
A thermistor is located on the RF Combiner/Peripheral module to monitor the
operating temperature of the PA. The thermistor signal indicating excessive
temperature is applied to the A/D converter and then sent to the BRC. The BRC
rolls back forward power if the monitored temperature is excessive.
900 MHz PA
This module consists of two parts: an RF combiner and a peripheral module. The
RF combiner combines the two RF signals from each LDM into a single signal,
using a branchline coupler arrangement. Then, the RF signal passes through a
directional coupler which derives a signal sample of the LFMs RF power output.
Via the coupler, a sample of the RF output signal is fed to the Exciter, via the DC/
Metering Board, as a feedback signal, thereby allowing the Exciter to accordingly
adjust signal drive. Following the coupler, the power output signal is passed
through a circulator, which protects the PA in the event of high reflected power.
A power monitor circuit monitors the forward and reflected power of the output
signal. This circuit furnishes the A/D converter on the DC/Metering Board with
input signals representative of the forward and reflected power levels.
For forward power, a signal representative of the measured value is sent to the
BRC via the SPI bus. The BRC determines if this level is within tolerance of the
programmed forward power level. If the level is not within parameters, the BRC
will issue a warning to the site controller which, in turn, will shut down the
Exciter if required.
Reflected power is monitored in the same manner. The BRC uses the reflected
power to calculate the voltage standing wave ratio (VSWR). If the VSWR is
determined to be excessive, the forward power is rolled back. If it is extremely
excessive, the BRC issues a shut-down command to the Exciter.
A thermistor is located on the RF Combiner/Peripheral module to monitor the
operating temperature of the PA. A voltage representative of the monitored
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13
Power Amplifier (PA)
EBTS System Manual - Vol 2
PA Theory of Operation
temperature is sent from the A/D converter to the BRC. The BRC rolls back
forward power if the monitored temperature is excessive.
14
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EBTS System Manual - Vol 2
Power Amplifier (PA)
PA Theory of Operation
1500 MHz
Both LFM outputs are input into this module where they are combined, with a
branchline coupler, for a single output signal. The RF signal is first coupled to the
Exciter module, via the DC/Metering Board, so that it can be monitored. The RF
output signal is then passed through a circulator that acts as a protection device
for the PA in the event of reflected power.
A power monitor circuit monitors the forward and reflected power of the output
signal. This circuit provides the A/D converter on the DC/Metering board with
an input signal representative of the forward or reflected power levels.
For forward power, a signal representative of the measured value is sent to the
BRC module via the SPI bus. The BRC determines if this level is within tolerance
of the programmed forward power level. The programmed forward power is set
through the use of MMI commands. If the level is not within certain parameters,
the BRC will issue a warning to the site controller and may shut-down the Exciter
module.
Reflected power is monitored in the same manner except that the BRC determines
an acceptable reflected power level. The BRC calculates the reflected power
through an algorithm stored in memory. If the reflected power is determined to be
excessive, the forward power is rolled back. If the reflected power level is
extremely excessive, the BRC will issues a shut-down command to the Exciter
module.
A thermistor is located on the RF Combiner/Peripheral module to monitor the
operating temperature of the Power Amplifier. A voltage representative of the
monitored temperature is sent from the A/D converter to the BRC. The BRC
issues a cut-back command to the Exciter module if the monitored temperature is
greater than 121˚ F (85˚ C).
RF Combiner/Peripheral Module (800 MHz QUAD and 900 MHz QUAD)
This module consists of two parts: an RF combiner and a Peripheral module. The
RF combiner combines three RF signals from the Combiner Board into a single
signal using a Wilkinson coupler arrangement. Following the combiner circuit,
the single combined RF signal is then passed through a directional coupler, which
derives a signal sample of the LFM RF power output. Via the coupler, a sample of
the RF output signal is fed to the Exciter, via the DC/Metering Board, as a
feedback signal. Following the coupler, the power output signal is passed through
a dual stage circulator, which protects the PA in the event of high reflected power.
The Peripheral module provides a power monitor circuit that monitors the
forward and reflected power of the output signal. This circuit furnishes the A/D
converter on the DC/Metering Board with input signals, representative of the
forward and reflected power levels.
For forward power, a signal representative of the measured value is sent to the
BRC via the SPI bus. The BRC determines if this level is within tolerance of the
programmed forward power level. If the level is not within tolerance, the BRC
will issue a warning to the site controller, which, in turn, will shut down the
Exciter, if required.
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15
Power Amplifier (PA)
EBTS System Manual - Vol 2
Reflected power is monitored in the same manner. The BRC uses the reflected
power to calculate the voltage standing wave ratio (VSWR). If the VSWR is
calculated as excessive, forward power is rolled back. If the VSWR calculation is
exceedingly out of tolerance, the BRC issues a shut-down command to the Exciter.
NOTE
The Thermistor that monitors the operating
temperature of the 800 MHZ QUAD and 900 MHz
QUAD PAs is located on the DC/Metering Board
Fan Module
The PA contains a fan assembly to maintain normal operating temperature
through the use of a cool air intake. The fan assembly consists of three individual
fans in which airflow is directed across the PA heatsink.
The current draw of the fans is monitored by the DC/Metering Board. A voltage
representative of the current draw is monitored by the BRC. The BRC flags the
iSC if an alarm is triggered. The PA LED on the front panel of the BRC also lights,
however the PA does not shut down due to a fan failure alone.
This Page Intentionally
Left Blank
16
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EBTS System Manual - Vol 2
800/900/1500 MHz Base Radios
Power Amplifier
40W- 800 MHz Power Amplifier – TLF2020 (LF1772)
Functional Block Diagram
ADDRESS DECODE, MEMORY,
& A/D CONVERTER CIRCUITRY
LINEAR DRIVER MODULE
INTERCONNECT
BOARD
RF SPLITTER/DC DISTRIBUTION BOARD
LINEAR FINAL
MODULES
RF
INTERCONNECT
BOARD
STAGE
RF INPUT
CLASS AB
STAGE 2
CLASS AB
DC
FILTER
CLK/DATA
+28 VDC
50 OHM
LOAD
CHIP SELECT
DECODE
CIRCUITRY
CHIP SELECT
MEMORY
50 OHM
LOAD
SPI BUS
TO/FROM BRC
CHIP
SELECT
ADDRESS BUS
FROM BRC
FAN ASSEMBLY
FAN SENSE
BOARD SELECT
DECODE
CIRCUITRY
A/D
CONVERTER
PA TEMP SENSE
FWD PWR
REF PWR
RF COMBINER/
PERIPHERAL MODULE
TEMPERATURE
SENSOR
LOW-PASS
FILTER
50 OHM
LOAD
RF OUT
TO ANTENNA
STAGE 3
CLASS AB
50 OHM
LOAD
CIRCULATOR
50 OHM
LOAD
RF FEEDBACK
TO EXCITER
MODULE
EBTS611
051398LLN
Figure 5
68P 80801E 35- A
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TLF2020 (CLF1772) 40W- 800 MHz PA Functional Block Diagram
(Sheet 1 of 1)
17
800/900/1500 MHz Base Radios
EBTS System Manual - Vol 2
Power Amplifier
70W- 800 MHz Power Amplifier – TLN3335 (CLF1771)
Functional Block Diagram
RF SPLITTER/DC DISTRIBUTION BOARD
LINEAR FINAL
MODULES
COMBINER
BOARD
50 OHM
LOAD
ADDRESS DECODE, MEMORY,
& A/D CONVERTER CIRCUITRY
LINEAR DRIVER MODULE
INTERCONNECT
BOARD
STAGE
RF INPUT
CLASS AB
50 OHM
LOAD
DC
FILTER
CLK/DATA
50 OHM
LOAD
50 OHM
LOAD
STAGE 2
CLASS AB
CHIP SELECT
DECODE
CIRCUITRY
50 OHM
LOAD
MEMORY
CHIP SELECT
SPI BUS
TO/FROM BRC
+28 VDC
CHIP
SELECT
ADDRESS BUS
FROM BRC
FAN ASSEMBLY
FAN SENSE
A/D
CONVERTER
50 OHM
LOAD
BOARD SELECT
DECODE
CIRCUITRY
PA TEMP SENSE
FWD PWR
REF PWR
50 OHM
LOAD
RF COMBINER/
PERIPHERAL MODULE
TEMPERATURE
SENSOR
50 OHM
LOAD
LOW-PASS
FILTER
RF OUT
TO ANTENNA
50 OHM
LOAD
RF FEEDBACK
TO EXCITER
MODULE
Figure 6
18
50 OHM
LOAD
50 OHM
LOAD
CIRCULATOR
STAGE 3
CLASS AB
TLN3335 (CLF11771) 70W- 800 MHz PA Functional Block
Diagram (Sheet 1 of 1)
EBTS417
120497JNM
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EBTS System Manual - Vol 2
Troubleshooting
Troubleshooting
Overview
This chapter is a guide for isolating Base Radio failures to the FRU level. There are
three sections- one each for Generation 2 Single Channel Base Radios, QUAD
Channel Base Radios and Legacy Single Channel Base Radios. Each section
contains procedures for:
❐
Troubleshooting
❐
Verification/Station Operation
The maintenance philosophy for any Base Radio is to repair by replacing
defective FRUs with new FRUs. This method limits down-time.
Two troubleshooting procedures are included. Each procedure is designed to
quickly identify faulty FRUs.
Ship defective FRUs to a Motorola repair depot for repair.
Section
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Page
Description
Troubleshooting
Preliminaries
This section includes recommended equipment and
troubleshooting procedures
Generation 2 Single
Channel Base Radio FRU
Replacement Procedures
This includes Generation 2 Single Channel Base
Radio Replacement Procedure , including MMI
commands necessary to verify proper operation.
QUAD Channel Base
Radio/Base Radio FRU
Replacement Procedures
44
This section includes QUAD Channel BR FRU
Replacement Procedures, including MMI commands
necessary to verify proper operation.
Legacy Single Channel Base
Radio FRU Replacement
Procedures
99
This section includes Legacy Single Channel BR FRU
Replacement Procedures., including MMI
commands necessary to verify proper operation.
Troubleshooting
EBTS System Manual - Vol 2
Troubleshooting Preliminaries
Troubleshooting Preliminaries
Recommended Test Equipment
Table 1 lists recommended test equipment necessary for performing Base Radio
troubleshooting/verification procedures.
Table 1
Recommended Test Equipment
Test Equipment
Model Number
Use
Communications Analyzer
R2660 w/iDEN option
Used for checking receive and
transmit operation (iDEN
signaling capability) and station
alignment
Dummy Load (50 Ω, 150 W)
none
Used to terminate output
Service Computer
IBM or clone, 80286 or
better
Local service terminal
Portable Rubidium
Frequency Standard
Ball Efratom
Frequency standard for R2660,
netting TFR
Power Meter
none
Used to measure reflected and
forward power
RF Attenuator, 250 W, 10 dB
Motorola 0180301E72
Protection for R2660
Communication
Procomm Plus
Local service computer
File Compression
PKZip
Compress/Decompress data
(Single Channel BR only)
RF Power Mete
HP438A
Low Power Sensor Head
HP8481D
Used for calibration of the R2660
signal (QUAD BR only)
Software:
Used in conjunction with Power
Meter (QUAD BR only)
Troubleshooting Procedures
Many of the troubleshooting and station operation procedures require
Man-Machine Interface (MMI) commands. These commands are used to
communicate station level commands to the Base Radio via the RS-232
communications port located on the front of the BRC.
Routine Checkout
Procedure One is a quick, non-intrusive test performed during a routine site visit.
Use this procedure to verify proper station operation without taking the station
out of service. Figure 1 shows the Procedure One Troubleshooting Flowchart.
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Troubleshooting
Troubleshooting Preliminaries
ROUTINE
SITE VISIT
PROCEDURE 1
OBSERVE LED
INDICATORS
Refer to
Controls and Indicators
for LED Definitions
Module Suspected
of Being Faulty?
Yes
Go to Troubleshooting
Procedure 2 Flow Chart
No
CHECK CURRENT
ALARM STATUS
Use MMI command
get alarms
to check alarm status
Module Suspected
of Being Faulty?
Yes
Go to Troubleshooting
Procedure 2 Flow Chart
No
DONE
EBTS021
071895JNM
Figure 1
Procedure One Troubleshooting Flowchart
Reported/Suspected Problem
Use Procedure Two to troubleshoot reported or suspected equipment
malfunctions. Perform this procedure with equipment in service (non-intrusive)
and with equipment taken temporarily out of service (intrusive).
Figure 2 shows the Procedure Two Troubleshooting Flowchart.
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Troubleshooting
EBTS System Manual - Vol 2
Troubleshooting Preliminaries
PROBLEM
REPORTED OR SUSPECTED
PROCEDURE 2
OBSERVE LED
INDICATORS
Refer to
Controls and Indicators
for LED Definitions
Module Suspected
of Being Faulty?
Yes
Go to Module Replacement
Procedures Section
No
CHECK CURRENT
ALARM STATUS
Use MMI command
get alarms
to check alarm status
Module Suspected
of Being Faulty?
Yes
Go to Module Replacement
Procedures Section
No
PERFORM
VERIFICATION TESTS
Use MMI commands to
perform tests as specified in
station verification procedure.
Module Suspected
of Being Faulty?
Yes
Go to Module Replacement
Procedures Section
No
DONE
Clear Problem Report
EBTS022
071895JNM
Figure 2
Procedure Two Troubleshooting Flowchart
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Troubleshooting
Generation 2 Single Channel Base Radio FRU Replacement Procedures
Generation 2 Single Channel Base Radio FRU Replacement Procedures
Replace suspected station modules with known non-defective modules to restore
the station to proper operation. The following procedures provide FRU
replacement instructions and post-replacement adjustments and/or
verification instructions.
Generation 2 Single Channel Base Radio Replacement Procedure
NOTE
The Base Radio removal and installation procedures
are included for reference or buildout purposes. Field
maintenance of Base Radios typically consists of
replacement of FRUs within the Base Radio. Perform
Base Radio FRU replacement in accordance with “Base
Radio FRU Replacement Procedure” below.
Perform Base Radio (BR) replacement as described in the following paragraphs.
Removal
Remove BR from Equipment Cabinet as follows:
1.
Remove power from the Base Radio by setting the Power Supply ON/OFF
switch to the OFF position.
2.
Tag and disconnect the cabling from the BR rear panel connectors.
3.
Remove the four M6 TORX screws which secure the BR front panel to the
Equipment Cabinet mounting rails.
WARNING
BR WEIGHT EXCEEDS 60 LBS (27 KG). USE
TWO-PERSON LIFT WHEN REMOVING OR INSTALLING
BR FROM EQUIPMENT CABINET. MAKE CERTAIN BR IS
FULLY SUPPORTED WHEN BR IS FREE FROM
MOUNTING RAILS.
4.
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While supporting the BR, carefully remove the BR from the Equipment
Cabinet by sliding the BR from the front of cabinet.
Troubleshooting
EBTS System Manual - Vol 2
Generation 2 Single Channel Base Radio FRU Replacement Procedures
Installation
Install BR in Equipment Cabinet as follows:
1.
If adding a BR, install side rails in the appropriate BR mounting position in
the rack.
2.
While supporting the BR, carefully lift and slide the BR in the Equipment
Cabinet mounting position.
3.
Secure the BR to the Equipment Cabinet mounting rails using four M6
TORX screws. Tighten the screws to 40 in-lb (4.5 Nm).
4.
Connect the cabling to the BR rear panel connectors as tagged during the BR
removal. If adding a BR, perform the required cabling in accordance with
the Cabling Information subsection of the RFDS section applicable to the
system.
5.
Perform BR activation in accordance with Station Verification Procedures
below.
Anti-Static Precautions
CAUTION
The Base Radio contains static-sensitive devices.
when replacing Base Radio FRUs, always wear a
grounded wrist strap and observe proper anti-static
procedures to prevent electrostatic discharge damage
to Base Radio modules.
Motorola publication 68P81106E84 provides complete static protection
information. This publication is available through Motorola National Parts.
Observe the following additional precautions:
❐
Wear a wrist strap (Motorola Part No. 4280385A59 or equivalent) at all times
when servicing the Base Radio to minimize static build-up.
❐
A grounding clip is provided with each EBTS cabinet. If not available, use
another appropriate grounding point.
❐
DO NOT insert or remove modules with power applied to the Base Radio.
ALWAYS turn the power OFF using the Power Supply rocker switch on the
front of the Power Supply module.
❐
Keep spare modules in factory packaging for transporting. When shipping
modules, always pack in original packaging.
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Troubleshooting
Generation 2 Single Channel Base Radio FRU Replacement Procedures
FRU Replacement Procedure
Perform the following steps to replace any of the Base Radio FRUs:
NOTE
When servicing Base Radios (BRs) in situations where
the Control Board or the entire BR is replaced, the
integrated Site Controller (iSC) will automatically
reboot the serviced BR if the BR has been off-line for a
period not less than the value contained in
“Replacement BRC Accept Timer” (default is 3
minutes). If the BR is turned on prior to that time
value, power the BR down and wait the minimum
timer length before re-powering the BR.
1.
Remove power from the Base Radio by setting the Power Supply rocker
switch (located behind the front panel of the Power Supply) to the OFF (0)
position.
2.
Loosen the front panel fasteners. These are located on each side of the
module being replaced.
3.
Pull out the module.
4.
Insert the non-defective replacement module by aligning the module side
rails with the appropriate rail guides inside the Base Radio chassis.
5.
Gently push the replacement module completely into the Base Radio chassis
assembly using the module handle(s).
CAUTION
DO NOT slam or force the module into the chassis
assembly. This will damage the connectors
or backplane.
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6.
Secure the replacement module by tightening the front panel fasteners to the
specified torque of 5 in-lbs.
7.
Apply power to the Base Radio by setting the switch to the ON position.
8.
Perform the Station Verification Procedure provided below.
Troubleshooting
EBTS System Manual - Vol 2
Generation 2 Single Channel Base Radio FRU Replacement Procedures
Generation 2 Single Channel BR Power Amplifier (PA) Fan FRU Replacement
Perform the following steps to replace the Power Amplifier (PA) fans.
1.
Remove the Power Amplifier from the Base Radio per FRU Replacement
Procedure.
2.
Disconnect fan power cable from PA housing.
3.
Remove front panel from fan assembly.
4.
Remove fan assembly from PA chassis.
NOTE
Reverse above procedure to install new fan kit.
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Troubleshooting
Generation 2 Single Channel BR Station Verification Procedures
Generation 2 Single Channel BR Station Verification Procedures
Perform the Station Verification Procedures whenever you replace a FRU. The
procedures verify transmit and receive operations. Each procedure also contains
the equipment set-up.
Generation 2 Single Channel BR Replacement FRU Verification
All module specific information is programmed in the factory prior to shipment.
Base Radio specific information (e.g., receive and transmit frequencies) is
downloaded to the Base Radio from the network/site controller.
Replacement FRU alignment is not required for the Base Radio.
Generation 2 Base Repeater FRU Hardware Revision Verification
NOTE
The following procedure requires the Base Radio to be
out of service. Unless the Base Radio is currently out
of service, Motorola recommends performing this
procedure during off-peak hours. Performing this
procedure then minimizes or eliminates disruption of
service to system users.
1.
Connect one end of the RS-232 cable to the service computer.
2.
Connect the other end of the RS-232 cable to the Service Access port, located
on the front panel of the CNTL module.
3.
Power on the BR using the front switch on the Power Supply Module. Press
the reset button on the Control Module front panel. At the prompt, hit a
Carriage Return on the service computer to enter the test application mode.
Using the password motorola, log in to the BR.
> l o g in -u fie ld
pa s swo rd : mo to ro la
fie ld >
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EBTS System Manual - Vol 2
Generation 2 Single Channel BR Station Verification Procedures
4.
Collect revision numbers from the station by typing the
following command:
fie l d> f v - o p latfo r m
fie l d>
5.
If all modules return revision numbers of the format “Rxx.xx.xx”, then all
revision numbers are present. In that case, verification requires no further
action. If revision numbers return as blank, or not in the format “Rxx.xx.xx”,
contact your local Motorola representative or Technical Support.
6.
Set desired cabinet id and position and of BR by typing the following
commands, with the final number on each command being the desired
cabinet id and position. The command example below sets cabinet id to 5,
and cabinet position to 2.
fie l d> c i - o p latfo r m -c 5
fie l d> p i - o p latfo r m -p 2
fie l d>
7.
After checking all BRs, log out by keying the following command:
fie l d> lo g o u t
fie l d>
Generation 2 Transmitter Verification
The transmitter verification procedure verifies the transmitter operation and the
integrity of the transmit path. This verification procedure is recommended after
replacing an Exciter, Power Amplifier, BRC, or Power Supply module.
NOTE
The following procedure requires the Base Radio to be
out of service. Unless the Base Radio is currently out
of service, Motorola recommends performing this
procedure during off-peak hours. This minimizes or
eliminates disruption of service to system users.
Equipment Setup
To set up the equipment, use the following procedure:
10
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Troubleshooting
Generation 2 Single Channel BR Station Verification Procedures
1.
Remove power from the Base Radio by setting the Power Supply rocker
switch (located behind the front panel of the Power Supply) to the OFF (0)
position.
2.
Connect one end of the RS-232 cable to the service computer.
3.
Connect the other end of the RS-232 cable to the Service Access port located
on the front panel of the BRC.
4.
Disconnect the existing cable from the connector labeled PA OUT. This
connector is located on the backplane of the Base Radio.
CAUTION
Make sure power to BR is OFF before disconnecting
transmitter RF connectors. Disconnecting transmitter
RF connectors while the BR is keyed may result in RF
burns from arcing.
5.
Connect a test cable to the PA OUT connector.
6.
Connect a 10 dB attenuator on the other end of the test cable.
7.
From the attenuator, connect a cable to the RF IN/OUT connector on the
R2660 Communications Analyzer.
8.
Remove power from the R2660 and connect the Rubidium Frequency
Standard 10MHZ OUTPUT to a 10 dB attenuator.
9.
Connect the other end of the 10 dB attenuator to the 10MHZ REFERENCE
OSCILLATOR IN/OUT connector on the R2660.
NOTE
Refer to the equipment manual provided with the
R2660 for further information regarding mode
configuration of the unit (Motorola Part
No. 68P80386B72).
6 8 P 8 0 8 0 1E35- A
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10.
Set the R2660 to the EXT REF mode.
11.
Apply power to the R2660.
12.
Set the R2660 to the SPECTRUM ANALYZER mode with the center
frequency set to the transmit frequency of the Base Radio under test.
13.
Perform the appropriate transmitter verification procedure below for the
particular Power Amplifier used in the Base Radio.
11
Troubleshooting
EBTS System Manual - Vol 2
Generation 2 Single Channel BR Station Verification Procedures
Transmitter Verification Procedure
This procedure provides commands and responses to verify proper operation of
the transmit path for 800 MHz Base Radios.
1.
Power on the BR using the front switch on the Power Supply Module. Press
the reset button on the Control Module front panel. At the prompt, hit a
Carriage Return on the service computer to enter the test application mode.
Using the password motorola, login to the BR.
> lo g in - u field
pa sswor d: m o to ro la
fie l d>
2.
Dekey the BR to verify that no RF power is being transmitted. Set the
transmit DSP test mode to “stop.” At the BRC> prompt, type:
fie l d> p ower - otx ch 1 -p 0
fie l d> p t m - o t x _ a ll -ms to p
NOTE
The following command keys the transmitter. Make
sure that transmission only occurs on licensed
frequencies or into an RF dummy load.
3.
Key the BR to 40 watts, following the steps below from the BRC> prompt:
3.1
Set the transmitter frequency.
fie l d> f re q - o t x ch 1 -f8 6 0
12
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Troubleshooting
Generation 2 Single Channel BR Station Verification Procedures
3.2
Enable the channel by setting a data pattern to “iden”
field > d p m -o tx ch 1 -mid e n
NOTE
After the following command is entered, power will
be transmitted at the output of the Power Amplifier.
3.3
Set the transmit power to 40 watts and key the BR.
field > p tm -o tx _ a ll -md n lk _ fr a me d
fie ld > p owe r -o tx ch 1 -p 4 0
4.
After keying the Base Radio, verify the forward and reflected powers of the
station along with the station VSWR with the parameters listed in Table 2.
Table 2
Generation 2 BR Transmitter Parameters
Parameter
Value or Range
Forward Power
Greater than 36 Watts
Reflected Power
Less than 2.0 Watts
VSWR
Less than 1.6:1
NOTE
The reported value for forward power is not indicative
of Base Radio performance. This value is reported
from the internal wattmeter. These limits are only for
verification of operation and are not representative of
true operating power of the transmitter.
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Troubleshooting
EBTS System Manual - Vol 2
Generation 2 Single Channel BR Station Verification Procedures
4.1
At the BRC> prompt, type:
fie l d> p ower - otx _ a ll
This command returns all active alarms of the Base Radio.
4.2
At the BRC> prompt, type:
fie l d> a la rm s -o fa u lt_ h n d lr
If the a la r ms command displays alarms, refer to the System
Troubleshooting section of this manual for corrective actions.
5.
View the spectrum of the transmitted signal on the R2660 Communications
Analyzer in the Spectrum Analyzer mode. Figure 5 shows a sample of the
spectrum.
EBTS071
032394JNM
Figure 3
14
Generation 2 Carrier Spectrum
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Troubleshooting
Generation 2 Single Channel BR Station Verification Procedures
6.
Dekey the BR to verify no RF power is being transmitted. Set the transmit
DSP test mode to “stop.” At the field> prompt, type:
field > p owe r -o tx ch 1 -p 0
fie ld > p tm -o tx _ a ll -ms to p
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Troubleshooting
EBTS System Manual - Vol 2
Generation 2 Single Channel BR Station Verification Procedures
Equipment Disconnection
Use the following steps to disconnect equipment after verifying the transmitter.
1.
Remove power from the Base Radio by setting the Power Supply rocker
switch (located behind the front panel of the Power Supply) to the OFF (0)
position.
2.
Disconnect the RS-232 cable from the connector on the service computer.
3.
Disconnect the other end of the RS-232 cable from the RS-232 connector
located on the front panel of the BRC.
CAUTION
Make sure power to BR is OFF before disconnecting
transmitter RF connectors. Disconnecting transmitter
RF connectors while the BR is keyed may result in RF
burns from arcing.
4.
Disconnect the test cable from the PA OUT connector located on the
backplane of the Base Radio.
5.
Connect the standard equipment cable to the PA OUT connector.
6.
Disconnect the 10 dB attenuator from the other end of the test cable.
7.
From the attenuator, disconnect the cable to the R2660
Communications Analyzer.
8.
Restore power to the Base Radio by setting the Power Supply rocker switch
to the ON (1) position.
9.
If necessary, continue with the Receiver Verification Procedure.
Receiver Verification Procedure: Generation 2 Base Radio with RFDS
This procedure provides commands and responses to verify proper operation of
the Base Radio receiver paths. Perform the procedure on all four channels in each
Base Radio in the EBTS.
1.
16
Power on the BR using the front switch on the Power Supply Module. Press
the reset button on the front of the EX/BRC module. Using the terminal
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Troubleshooting
Generation 2 Single Channel BR Station Verification Procedures
program on the service computer, log onto the BR. Bold type indicates user
input commands.
>lo g in – u fie ld
>pa s swo rd : mo to ro la
field >
2.
Set the Frequency of the R2660 to 810MHz. Power out should be set to
–80 dBm.
3.
Set the channel frequency.
fie ld > fr e q -o r x ch 1 -f8 1 0
4.
Verify the R2660 signal level:
fie ld > e n a ble -o r x ch 1 -d b r 1 -s o n
fie ld > p p c -o r x ch 1 -mch n -s 1
field > p p r -o r x ch 1 -r 1 -a 5 0
5.
The resulting output will look similar to this:
fie ld > p p r -o r x ch 1 -r 1 -a 1 0 0
SG C A tte n .(d B m )= 0 .0 0 0 0 0 0
Fre q . Offs e t= -1 5 .0 5 9 3 2 3
Syn c . A tte m p ts = 1 .0 0 0 0 0 0
Syn c . S u c c e s s e s = 1 .0 0 0 0 0 0
BE R %= 0 .0 0 0 0 0 0
RX Pa th 1 R S S I= -8 0 .9 3 4 0 2 1
RX Pa th 2 R S S I= -1 2 7 .0 1 2 5 2 0
RX Pa th 3 R S S I= -1 2 7 .0 1 2 5 2 0
Chn s ig . s tre n g th = -5 7 .0 9 8 6 9 8
Chn in tf. s tre n g th = -9 1 .6 9 6 7 3 9
field >
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Generation 2 Single Channel BR Station Verification Procedures
NOTE
RX Path1 RSSI must read -80dBm ±1dBm for the BER
Floor verification to be accurate. Adjust the output
level of the R2660 to compensate for loss in the test
cables and three-way splitter.
BER Floor Measurement: Generation 2 Base Radio with RFDS
1.
Verify that the R2660 is set to 810MHz and is producing a power level of
-80dBm. (See “Receiver Verification Procedure: QUAD Base Radio with
RFDS” on page 61.)
2.
Using the MMI commands below, issue the command to put the BR into
single branch mode. If the resulting bit error rate for receiver branches 1, 2,
and 3 is less than 0.01%, the receiver has passed the test.
3.
Check Receiver 1. At the prompt, type (inputs are in bold, comments are in
italics):
fiel d> f req - o rxch 1 -f8 1 0
fie l d> e n a ble - or x ch 1 -s o ff
fiel d> e n a ble - or x ch 1 -d b r 1 -s o n
fie l d> p p c - o rxch 1 -mch n -s 1
fiel d> p p r - o rxch 1 -a 1 0 0 0 -r 1
fie l d> en a ble - or x ch 1 -s o ff
fiel d> e n a ble - or x ch 1 -d b r 2 -s o n
fie l d> p p r - o rx ch 1 -a 1 0 0 0 -r 1
( ski p th i s step if th e s y s te m is c o n fig u re d fo r 2 B ra n c h D ive rs ity )
fiel d> en a ble - or x ch 1 -s o ff
fie l d> e n a ble - or x ch 1 -d b 3 -s o n
fiel d> p p r - o rxch 1 -a 1 0 0 0 -r 1
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Generation 2 Single Channel BR Station Verification Procedures
4.
Enter the command to return all active alarms of the Base Radio. At the
prompt, type:
fie l d> a la r ms -o fa u lt_ h n d lr
NOTE
If the command displays alarms, refer to the System
Troubleshooting section for corrective actions.
5.
As shown below respectively for 800 MHz Generation 2 Base Radios, the
following command returns the kit numbers of the receiver and all other
modules. At the prompt, type:
fiel d> fc – o p la tfo r m
Receiver Sensitivity Measurement: Generation 2 Base Radio with RFDS
The receiver sensitivity measurement consists of sending a calibrated RF level of
-113.5dBm to the antenna ports at the top of the rack. This includes the RFDS in
the receive channel and measures the combined performance of the Base Radio
and the RFDS. The R2660 output must be calibrated prior to the taking of this
measurement.
Calibration of the R2660 output level
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1.
Verify that the R2660 is set to 810MHz and adjust the output power to a level
of -50dBm
2.
Calibrate HP438A Power Meter. Refer to the HP users guide that came with
the Meter. Below is a general procedure that can be followed.
2.1
Attach 8481D Power Sensor to the Sensor input on the front of the
437B.
2.2
Attach the included HP 11708A 30dB pad to the Power input on
the front on the 473B.
2.3
Power on the 437B.
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Generation 2 Single Channel BR Station Verification Procedures
2.4
Connect the Power Meter to the female end of the 30dB pad
extruding from the Power input.
2.5
Press the “Zero” button on the 437B.
2.6
Wait for Zeroing operation to complete.
2.7
Press “Shift-Zero” to enter the Cal value. This is listed as CF on
the Power Sensor.
2.8
Wait for Cal operation to complete.
2.9
Press “Shift-Freq” to enter the Cal Factor. This is listed as Cf in a
chart vs. freq on the Power Sensor. Choose the closest frequency
range for the application. For 800MHz measurements, interpolate
between 1.0GHz and 0.5GHz to obtain a Cf of 99.0
2.10 For measurement of iDEN or Tornado 6:1 waveforms, press
“Offset” and enter 7.78dB.
3.
Disconnect Cable A (see Figure 7 on page -60) from the Base Radio and
connect it to the Power Sensor Head.
4.
Increase the power level on the R2660 until the HP 437B Power Meter reads
-50dB.
5.
Record the DISPLAYED power level of the R2660 as Calfactor A.
6.
The path loss through the cable and splitter system is Calfactor A + 50.
Example: R2660 reads -44dBm
HP 437B reads -50dBm
Calfactor A = -44, path loss = 6dB
7.
Path loss must be determined for each Antenna cable A,B,C (see Figure 7 on
page -60). If comparable cables are used for all three the path losses of all
three should be the same.
8.
Additional power will be added to the R2660 in the sensitivity measurement
to balance out the additional path loss value.
9.
Reconnect cables A,B,C (see Figure 7 on page -60) to Antenna Ports 1,2,3.
10.
Set the R2660 to Frequency 810MHz and a Power level of -113.5dBm + path
loss.
Example: If your path loss was 6dB, set the R2660
to-107.5dBm.
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Generation 2 Single Channel BR Station Verification Procedures
11.
Using the MMI commands below, issue the command to put the BR into
single branch mode. If the resulting bit error rate for receiver branches 1, 2,
and 3 is less than 8.00%, the receiver has passed the test.
fiel d> fr e q -o r x ch 1 -f8 1 0
fie l d> e n a ble -o r x ch 1 -s o ff
fiel d> e n a ble -o r x ch 1 -d b r 1 -s o n
fie l d> p p c -o r tch 1 -mch n -s 1
fiel d> p p r -o r x ch 1 -a 1 0 0 -r 1
fie l d> e n a ble -o r x ch 1 -s o ff
fiel d> e n a ble -o r x ch 1 -d b r 2 -s o n
fie l d> p p r -o r x ch 1 -a 1 0 0 -r 1
( skip th is s te p if th e s y s te m is c o n fig u re d fo r 2 B ra n c h D i versity)
fiel d> e n a ble -o r x ch 1 -s o ff
fie l d> e n a ble -o r x ch 1 -d b 3 -s o n
fie l d> p p r -o r x ch 1 -a 1 0 0 -r 1
12.
Enter the command to return all active alarms of the Base Radio. At the
prompt, type:
fiel d> a la r ms -o fa u lt_ h n d lr
NOTE
If the command displays alarms, refer to the System
Troubleshooting section for corrective actions.
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Generation 2 Single Channel BR Station Verification Procedures
13.
As shown below respectively for 800 MHz Generation 2 Base Radios, the
following command returns the kit numbers of the receiver and all other
modules. At the prompt, type:
fiel d> f c –o p la tfo r m
Receiver Verification: Measurement of the Generation 2 Base Radio (No RFDS)
The receiver verification procedure sends a known test signal into the Base Radio
to verify the receive path. The signal is fed DIRECTLY into the ANTENNA
PORTS in the back of the Base Radio. This excludes the RFDS and antenna cabling
from the measurement. This verification procedure is recommended after
replacing a Receiver, BRC, or Power Supply module.
NOTE
The following procedure requires the Base Radio to be
out of service. Unless the base radio is currently out of
service, Motorola recommends performing this
procedure during off-peak hours. This minimizes or
eliminates disruption of services to system users.
Equipment Setup
Set up the equipment for the receiver verification as follows:
22
1.
Remove power from the Base Radio by setting the Power Supply rocker
switch (located behind the front panel of the Power Supply) to the OFF (0)
position.
2.
Connect one end of the RS-232 cable to the service computer.
3.
Connect the other end of the RS-232 cable to the STATUS port located on the
front panel of the BRC.
4.
Disconnect the existing cables from the connectors labeled RX1, RX2, and
RX3 on the back of the Base Radio. If the radio is configured for 2 Branch
diversity, disconnect the RX1 and RX2 cables.
5.
Connect test cables from each of the RX1, RX2, and RX3 connectors (Cables
A,B,C in Figure 8) to the input ports of the 3-way splitter. For 2 Branch
diversity tests, load the RX3 cable with an appropriate 50ohm load or
connect it to the RX3 antenna port on the radio.
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Generation 2 Single Channel BR Station Verification Procedures
6.
Connect an additional test cable (Cable D in Figure 7 on page -60) from the
summed port of the 3-way splitter to the RF IN/OUT connector on the
R2660 Communications Analyzer.
7.
Remove power from the R2660 and connect the Rubidium Frequency
Standard 10MHZ OUTPUT to a 10 dB attenuator.
8.
Connect the other end of the 10 dB attenuator to the 10MHZ REFERENCE
OSCILLATOR IN/OUT connector on the R2660.
NOTE
Refer to the equipment manual provided with the
R2660 for further information regarding mode
configuration of the unit (Motorola Part
No. 68P80386B72).
9.
Set the R2660 to the EXT REF mode
10.
Apply power to the R2660.
Receiver Verification Procedure: Generation 2 Base Radio
This procedure provides commands and responses to verify proper operation of
the Base Radio receiver paths. Perform the procedure on the receiver in each Base
Radio in the EBTS.
1.
Power on the BR using the front switch on the Power Supply Module. Press
the reset button on the front of the BRC module. Using the terminal program
on the service computer, log onto the BR. Bold type indicates user input
commands.
> log in -u fie ld
> p as swo rd : mo to ro la
fiel d >
2.
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Set the Frequency to of the R2660 to 810MHz. Power out should be set to
–80 dBm.
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Generation 2 Single Channel BR Station Verification Procedures
3.
Enable Global Synchronization.
fie l d> e s - o rx_ a ll -tg lo b a l
fie l d> f re q - o rxch 1 -f8 1 0
4.
Disable System Gain.
fie l d> s g e - o rx_ a ll -s o ff
NOTE
This step should only be performed if the Base Radio
is being connected directly to the Base Radio Antenna
ports. If verification is being performed at the top of
the rack (adding an RFDS), disregard the above
command.
5.
Verify the R2660 signal level.
fiel d> en a ble - or x ch 1 -d b r 1 -s o n
fiel d> p p c - o r y ch 1 -mch n -s 1
fiel d> p p r - o rx ch1 -r 1 -a 1 0 0
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Generation 2 Single Channel BR Station Verification Procedures
6.
The resulting output will look similar to this:
fiel d> p p r -o r x ch 1 -r 1 -a 1 0 0
SGC A tte n .(d B m )= 0 .0 0 0 0 0 0
Fr eq . Offs e t= -1 5 .0 5 9 3 2 3
Sync . A tte m p ts = 1 .0 0 0 0 0 0
Sync . S u c c e s s e s = 1 .0 0 0 0 0 0
BER %= 0 .0 0 0 0 0 0
RX Pa th 1 R S S I= -8 0 .9 3 4 0 2 1
RX Pa th 2 R S S I= -1 2 7 .0 1 2 5 2 0
RX Pa th 3 R S S I= -1 2 7 .0 1 2 5 2 0
Chn s ig . s tre n g th = -5 7 .0 9 8 6 9 8
Chn in tf. s tre n g th = -9 1 .6 9 6 7 3 9
fiel d>
NOTE
RX Path1 RSSI must read -80dBm ± 1dBm for the BER
Floor verification to be accurate. Adjust the output
level of the R2660 to compensate for loss in the test
cables and three-way splitter.
BER Floor Measurement: Generation 2 Base Radio
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1.
Verify that the R2660 is set to 810MHz and is producing a power level of
-80dBm. (See “Receiver Verification Procedure: Generation 2 Base Radio” on
page 23.)
2.
Using the MMI commands below, issue the command to put the BR into
single branch mode. If the resulting bit error rate for receiver branches 1, 2,
and 3 is less than 0.01%, the receiver has passed the test.
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Generation 2 Single Channel BR Station Verification Procedures
3.
Check Receiver. At the prompt, type (inputs are in bold, comments are in
italics):
fie l d> p p c - o rxch 1 -mch n -s 1
fiel d> f req - o rxch 1 -f8 1 0
fiel d> e n a ble - or x ch 1 -s o ff
fie l d> en a ble - or x ch 1 -d b r 1 -s o n
fiel d> p p r - o rxch1 -a 1 0 0 0 -r 1
fie l d> en a ble - or x ch 1 -s o ff
fiel d> e n a ble - or x ch 1 -d b r 2 -s o n
fie l d> p p r - o rx ch1 -a 1 0 0 0 -r 1
( ski p th i s step i f th e s y s te m is c o n fig u re d fo r 2 B ra n c h D ive rs ity )
fie l d> e n a ble - or x ch 1 -s o ff
fiel d> en a ble - or x ch 1 -d b 3 -s o n
fie l d> p p r - o rxch1 -a 1 0 0 0 -r 1
4.
Enter the command to return all active alarms of the Base Radio. At the
prompt, type:
fiel d> a la rm s - ofa u lt_ h n d lr
NOTE
If the command displays alarms, refer to the System
Troubleshooting section for corrective actions.
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Generation 2 Single Channel BR Station Verification Procedures
5.
As shown below respectively for 800 MHz Generation 2 Base Radios, the
following command returns the kit numbers of the receiver and all other
modules. At the BRC> prompt, type:
fiel d> fc – o p la tfo r m
Receiver Sensitivity Measurement: Generation 2 Base Radio
1.
Verify that the R2660 is set to 810MHz and adjust the output power to a level
of -50dBm.
2.
Calibrate HP438A Power Meter. Refer to the HP users guide that came with
the Meter. Below is a general procedure that can be followed.
2.1
Attach 8481D Power Sensor to the Sensor input on the front of the
437B.
2.2
Attach the included HP 11708A 30dB pad to the Power input on
the front on the 473B.
2.3
Power on the 437B.
2.4
Connect the Power Meter to the female end of the 30dB pad
extruding from the Power input.
2.5
Press the “Zero” button on the 437B.
2.6
Wait for Zeroing operation to complete.
2.7
Press “Shift-Zero” to enter the Cal value. This is listed as CF on
the Power Sensor.
2.8
Wait for Cal operation to complete.
2.9
Press “Shift-Freq” to enter the Cal Factor. This is listed as Cf in a
chart vs. freq on the Power Sensor. Choose the closest frequency
range for the application. For 800MHz measurements, interpolate
between 1.0GHz and 0.5GHz to obtain a Cf of 99.0
2.10 For measurement of iDEN or Tornado 6:1 waveforms, press
“Offset” and enter 7.78dB.
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3.
Disconnect Cable A (see Figure 7 on page -60) from the Base Radio and
connect it to the Power Sensor Head.
4.
Increase the power level on the R2660 until the HP 437B Power Meter reads
-50dB.
5.
Record the DISPLAYED power level of the R2660 as Calfactor A.
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Generation 2 Single Channel BR Station Verification Procedures
6.
The path loss through the cable and splitter system is Calfactor A + 50.
Example: R2660 reads -44dBm
HP 437B reads -50dBm
Calfactor A = -44, path loss = 6dB
7.
Path loss must be determined for each Antenna cable A,B,C (see Figure 7 on
page -60). If comparable cables are used for all three, the path losses of all
three should be the same.
8.
Additional power will be added to the R2660 in the sensitivity measurement
to balance out the additional path loss value.
9.
Reconnect cables A,B,C (see Figure 7 on page -60) to Antenna Ports 1,2,3.
10.
Set the R2660 to Frequency 810MHz and a Power level of -108dBm + path
loss.
Example: If your path loss was 6dB, set the R2660 to
-102dBm.
11.
Using the MMI commands below, issue the command to put the BR into
single branch mode. If the resulting bit error rate for receiver branches 1, 2,
and 3 is less than 8.00%, the receiver has passed the test.
fie l d> p p c - o rxch 1 -mch n -s 1
fiel d> f req - o rxch 1 -f8 1 0
fie l d> en a ble - or x ch 1 -s o ff
fiel d> e n a ble - or x ch 1 -d b r 1 -s o n
fie l d> p p r - o rxch1 -a 1 0 0 -r 1
fie l d> en a ble - or x ch 1 -s o ff
fiel d> e n a ble - or x ch 1 -d b r 2 -s o n
fie l d> p p r - o rx ch1 -a 1 0 0 -r 1
( ski p th i s step i f th e s y s te m is c o n fig u re d fo r 2 B ra n c h D ive rs ity )
fie l d> e n a ble - or x ch 1 -s o ff
fiel d> en a ble - or x ch 1 -d b 3 -s o n
fie l d> p p r - o rxch1 -a 1 0 0 -r 1
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Generation 2 Single Channel BR Station Verification Procedures
12.
Enter the command to return all active alarms of the Base Radio. At the
prompt, type:
fiel d> a la r ms -o fa u lt_ h n d lr
NOTE
If the command displays alarms, refer to the System
Troubleshooting section for corrective actions.
13.
As shown below respectively for 800 MHz Generation 2 Base Radios, the
following command returns the kit numbers of the receiver and all other
modules. At the prompt, type:
field > fc –o p la tfo r m
Equipment Disconnection
Disconnect equipment after verifying the receiver as follows:
1.
Remove power from the Base Radio by setting the Power Supply rocker
switch (located behind the front panel of the Power Supply) to the OFF (0)
position.
2.
Disconnect the RS-232 cable from the connector on the service computer.
3.
Disconnect the other end of the RS-232 cable from the RS-232 connector on
the front panel of the BRC.
4.
Disconnect the test cable from the RX 1 connector located on the backplane
of the Base Radio.
5.
Connect the standard equipment cable to the RX 1 connector.
6.
Disconnect the cable to the R2660 Communications Analyzer.
7.
Restore power to the Base Radio by setting the Power Supply rocker switch
to the ON (1) position.
This completes the Receiver Verification Procedure for the receiver.
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Generation 2/EBRC Single Channel Base Radio Backplane
Generation 2/EBRC Single Channel Base Radio Backplane
Backplane Signals
Table 3 provides a list of all signals routed on the backplane interconnect board.
Table 3
30
BR Backplane Signal Descriptions
Signal
Description
GND
Station Ground
28.6 V
28.6 VDC Output from PS
14.2 V
14.2 VDC Output from PS
5.1 V
5.1 VDC Output from PS
A0, A1, A2, A3, A4, A5, A6**
The BRC uses these lines to address station modules and devices on those modules
SPI_MOSI
Serial Processor Interface- Master out, slave in Data
SPI_MISO
Serial Processor Interface- Master in, slave out Data
SPI_CLK
Serial Processor Interface- Clock Signal (100 KHz- 1MHz)
ACG1, ACG2, ACG3, ACG4
BRC uses these lines to set digital attenuators on the receiver(s) for SGC functionality
2.1MHZ_RX
2.1 MHz generated on the BRC and used as a reference by the Receiver(s)
2.1MHZ_TX
2.1 MHz generated on the BRC and used as a reference by the Exciter
DATA1, DATA1*
This differential pair carries Receiver 1 data to the Base Radio Controller
DATA2, DATA2*
This differential pair carries Receiver 2 data to the Base Radio Controller
DATA3, DATA3*
This differential pair carries Receiver 3 data to the Base Radio Controller
ODC_1, ODC_2, ODC_3
Clocks used to clock differentiual receive data from each respective receiver to the BRC
SBI_1,S BI_2, SBI_3
Serial Bus Interface - these lines are used to program the custom receiver IC oin each
receiver
SSI, SSI*
Differentiual transmit data from the Exciter to the BRC
CLK, CLK*
Differential Data clock used to clock transmit data from the BRC to the Exciter
VBLIN
Programmable bias voltage generated on the Exciter and used to bias PA stages
RESET*
Output from BRC to Exciter
EXT_VFWD
DC voltage representing the forward power at the antenna as measured by the external
watt meter
EXT_VREF
DC voltage representing the reflected power at the antenna as measured by the external
watt meter.
WP*
Write protect line used by the BRC to write serial EPROMs located on each module
BAT_STAT
Binary flag used to signal BRC to monitor the External battery supply alam
METER_STAT
Binary Flag used by the BRC to indicate to the BRC it should monitor
PA_ENABLE*
The BRC uses this line to control PA bias.
1PPS
Global Positioning System- 1 pulse per second (this may be combined with 5 MHz at the
site frequency reference)
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Generation 2/EBRC Single Channel Base Radio Backplane
Table 3
BR Backplane Signal Descriptions
Signal
Description
RCLK
RS-232- Receive Clock
TCLK
RS-232- Transmit Clock
CTS
RS-232- Clear To Send
RTS
RS-232- Request To Send
CD
RS232- Carrier Detect
RxD
RS232- RX Data
TxD
RS232- TX Data
BRG
RS-232 Baud Rate Generator
5 MHZ / Spare
signal not currently used
EXCITER OUT
Forward transmit path QQAM at approximately an 11 dBm level
EXCITER_FEEDBACK
Signal comes from PA at approximately 16 dBm. Used to close the cartesian RF_LOOP
PA_IN
4 dBm QQAM forward path of the transmitter
PA_FEEDBACK
Signal to the Exciter at approximately 16 dBm. Used to close the cartesian RF_LOOP
Rx1_IN
RF into Receiver 1
Rx2_IN
RF nto Receiver nto Receiver 2
Rx3_IN
RF nto Receiver 3
5MHZ REFERENCE
5 MHZ Station/Site reference. Signal comes from the redundant site frequency reference
and usually is multiplexed with the 1 PPS signal from the Global Positrioning Satellite
input to the site frequency reference.
ETHERNET
Interface between the BRC and the ACG. This connects the Base to the 10 MHz LAN
SCR_SHUT
Not Used
SCR_THRESH
Not Used
RELAY ENABLE
Not Used
SHUTDOWN
Input signal from the BRC to the Power Supply. Used to exercise a station “hard start”
28V_AVG
Not Used
BATT_TEMP
Not Used
NOTE: *= enabled low
NOTE: ** SPI address A6 was added to enable additional SPI addresses. The Eciter only needs to be changed if the change is required to take
advantage of additional SPI addresses. A6 pin A13 should be a NO CONNECT to enable A6 functionality on other modules.
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Generation 2/EBRC Single Channel Base Radio Backplane
Generation 2 Single Channel BR Backplane Connections
All external equipment connections are made on the Base Radio backplane.
Table 4 lists and describes each of the connectors on the backplane.
Table 4
Generation 2 Base Radio Backplane Connectors
Connector
Module
Description
Type
P1
EBRC
Signal
96 pin EURO
P2
Rx
Signal
48 pin AMP Z-Pack
Futurebus
P3
Rx
RF
Harting Harpac
P4
not used
not used
not used
P5
EX
Signal
96 pin EURO
P6
PA
Signal
96 pin EURO
P7
External/Alarm
Signal
DB25
P8
External/RS232
Signal
DB9
P9
PS
Signal
78 pin AMP Teledensity
P10
Ethernet B/5 MHz Spare
not used/not populated
BNC blindmate
P11
Ethernet
Signal
BNC Blindmate
P12
DC Input
-48 VDC IN (not part of the
backplane assembly)
8 pin AMP 530521-3
P13
5 MHz/ 1 PPS
Signal
BNC
P14
External/EX
RF (EX to PA)
SMA blindmate
P15
External/EX
EX Feedback
SMA blindmate
P16
External/PA
PA Feedback
SMA blindmate
P17
External/PA
PA IN
SMA blindmate
P18
External/PA
PA OUT
SMA blindmate
P19
Rx Branch 1
RF
SMA
P20
Rx Branch 2
RF
SMA
P21
Rx Branch 3
RF
SMA
Figure 4 shows the locations of the Generation 2 Base Radio external connections.
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Troubleshooting
Generation 2/EBRC Single Channel Base Radio Backplane
RX 3
AC POWER
GROUND
RX 2
DC POWER
RX 1
BLACK
RE
ETHERNET B
EX
EX OUT
PA FB
PA IN
ETHERNET A
5MHZ/1 PPS A
ALARM
RS 232
PA OUT
This port is not placed on the backplane
Figure 4
6 8 P 8 0 8 0 1E35- A
9/1/2001
EBTS327B
080601JNM
Generation 2 Base Radio Backplane Connectors
33
Troubleshooting
EBTS System Manual - Vol 2
Generation 2/EBRC Single Channel Base Radio Backplane
Generation 2 Single Channel BR Backplane Connector Pinouts
Table 5 lists the pin-outs for the 96-PIN P1 connector. P1 provides power, digital
signal, and analog signal interconnect to the BRC.
Table 5
Pin
P1 Gen 2/BR Connector Pin-outs
Row A
Row B
Row C
AGC3
28.6 VDC
AGC1
AGC4
14.2 VDC
AGC2
GND
GND
GND
RESET*
GND
GND
BATT_STAT
GND
GND
CTS
GND
GND
RTS
5.1 VDC
5.1 VDC
5.1 VDC
5.1 VDC
5.1 VDC
5.1 VDC
5.1 VDC
5.1 VDC
10
SHUTDOWN
5.1 VDC
11
RCLK
5.1 VDC
DATA1
12
ODC_1
5.1 VDC
DATA1*
13
TCLK
GND
DATA3
14
ODC_3
GND
DATA3*
15
RxD
GND
DATA2
16
ODC_2
BP ID_0
DATA2*
17
TxD
BP ID_1
A6
18
SSI
EXT_GPI_1
SBI_1
19
SSI*
EXT_GPO_1*
SBI_3
20
BRG
GND
SBI_2
21
CLK
EXT_GPI_2‘*
EXT_GPO_2*
22
CLK*
GND
A4
23
GND
PA_ENABLE*
A3
24
A5
GND
A2
25
A0
GND
A1
26
CD
GND
5MHZ/1PPS (5 MHz SPARE)
27
METER_STAT
GND
SPI_MISO
28
WP*
GND
SPI_CLK
29
GND
GND
SPI_MOSI
30
GND
GND
GND
31
1PPS_GPS
GND
2.1MHZ_TX
32
GND
GND
2.1MHZ_RX
NOTE: * = enabled low
34
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Troubleshooting
EBTS System Manual - Vol 2
Generation 2/EBRC Single Channel Base Radio Backplane
Table 6 lists 48-PIN P2 3X Receiver pin-outs
Table 6
Gen 2 BR P2 Rx Signal Connector Pinouts
Pin
Row A
Row B
Row C
Row D
GND
AGC4
AGC3
A6
GND
AGC2
AGC1
A0
GND
GND
RX1_SBI
RX1_ODC
GND
RX2_DATA
RX2_DATA*
A3
5.1 VDC
RX2_SBI
RX2_ODC
A4
GND
RX3_DATA
RX3_DATA*
A5
GND
RX3_SBI
RX3_ODC
WP*
RX1_DATA1 RX1_DATA1*
A1
A2
14.2 VDC
SPI_SCLK
SPI_MOSI
SPI_MISO
10
14.2 VDC
GND
GND
GND
11
14.2 VDC
GND
2.1MHZ_RX
GND
12
GND
GND
GND
GND
NOTE: * Enabled low
NOTE: Row A is the lowest row of pins. Pins on Row A are longer for mate first and
break last connection
NOTE: Pin1, Row D was changed from Ground to A6 between Legacy and Gen2
BR
Table 7 lists the 48-pin P3 pin-outs for the 3X Receiver.
Table 7
Gen 2 BR P3 3X Receiver Pin-outs
Pin
Row A
GND
Row B
Row C
Row D
Row E
GND
GND
GND
GND
RX1
GND
GND
GND
RX2
GND
GND
RX3
GND
GND
NOTE: All pins in columns A, C and D are connected to ground.
NOTE: Connections in columns B and D are Rx input signals
Table 8 lists the pin-outs for the 96-pin P5 connector of the Exciter.
Table 9 Lists the pinouts, signals and power for the 96-PIN P6 connector of the
Power Amplifier.
35
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Troubleshooting
EBTS System Manual - Vol 2
Generation 2/EBRC Single Channel Base Radio Backplane
Table 8
Pin
Gen 2 BR P5 Exciter Connector Pin-outs
Row A
Row B
Row C
28.6 V
28.6 V
28.6 V
28.6 V
28.6 V
28.6 V
14.2V
14.2V
14.2V
14.2V
14.2V
14.2V
5.1 V
5.1 V
5.1 V
5.1 V
5.1 V
5.1 V
GND
GND
EXT_VFWD
GND
GND
EXT_VREF
10
GND
GND
GND
11
GND
GND
VBLIN
12
GND
GND
RESET*
13
A6
14
GND
GND
GND
15
GND
GND
SPI_MISO
16
A0
GND
GND
17
GND
GND
SPI_CLK
18
A1
GND
WP*
19
GND
GND
GND
20
A5
GND
SPI_MOSI
21
GND
GND
GND
22
A4
GND
GND
23
GND
GND
CLK*
24
A3
GND
GND
25
GND
GND
CLK
26
GND
GND
GND
27
GND
GND
SSI*
28
GND
GND
GND
29
GND
GND
SSI
30
GND
GND
GND
31
GND
GND
2.1MHz_TX
32
GND
GND
GND
NOTE: * = enabled low
NOTE: SPI address A6 was added to the EBRC to enable additional
SPI addresses. Only change the EX if taking advantage of additional
SPI addresses via A6. A6 pin A13 should be no connect to enable A6
functionality on other modules.
36
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EBTS System Manual - Vol 2
Troubleshooting
Generation 2/EBRC Single Channel Base Radio Backplane
Table 9
Gen 2 BR P6 PA Connector Pin-outs
Pin
Row A
Row B
Row C
VBLIN
GND
28.6 VDC
GND
GND
28.6 VDC
A0
GND
28.6 VDC
GND
GND
28.6 VDC
A1
GND
28.6 VDC
GND
GND
28.6 VDC
A2
GND
28.6 VDC
GND
GND
28.6 VDC
A3
GND
28.6 VDC
10
GND
GND
28.6 VDC
11
SPI_MISO
GND
28.6 VDC
12
GND
GND
28.6 VDC
13
SPI_MOSI
GND
28.6 VDC
14
GND
GND
28.6 VDC
15
SPI_CLK
GND
28.6 VDC
16
GND
PA_ENABLE*
28.6 VDC
17
WP*
GND
28.6 VDC
18
GND
GND
28.6 VDC
19
A6
GND
28.6 VDC
20
GND
GND
28.6 VDC
21
GND
GND
28.6 VDC
22
GND
GND
28.6 VDC
23
GND
GND
28.6 VDC
24
GND
GND
28.6 VDC
25
GND
5.1 VDC
28.6 VDC
26
GND
5.1 VDC
28.6 VDC
27
GND
14.2 VDC
28.6 VDC
28
GND
14.2 VDC
28.6 VDC
29
GND
14.2 VDC
28.6 VDC
30
GND
14.2 VDC
28.6 VDC
31
GND
28.6 VDC
28.6 VDC
32
GND
28.6 VDC
28.6 VDC
NOTE: * Enabled low
NOTE: Pin B2 was re-defined for use with the EBRC- it went from
GND for Legacy Controllers to PA_ENABLE with the EBRC.
NOTE: SPI address A6 was added to the EBRC to enable
additional SPI addresses. If the PA does not use A6 pin A19, A6
Pin 19 should be no connect to enable A6 functionality on other
modules.
6 8 P 8 0 8 0 1E35- A
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37
Troubleshooting
EBTS System Manual - Vol 2
Generation 2/EBRC Single Channel Base Radio Backplane
Table 10 lists the pin-outs for the 25-pin P7 Alarm connector.
Table 10
Gen 2 BR P7 External Alarm Connector Pin-outs
Pin
Signal
EXT_GPI_1*
EXT_GPO_1*
GND
EXT_GPI_2*
EXT_GPO_2*
10
GND
11
28.6 VDC
12
14.2 VDC
13
14.2 VDC
14
15
5.1 VDC
16
GND
17
BAT_STAT*
18
MTR_STAT*
19
EXT_VFWD
20
EXT_VREF
21
GND
22
GND
23
BATT_TEMP
24
25
GND
NOTE: * = enabled low
38
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EBTS System Manual - Vol 2
Troubleshooting
Generation 2/EBRC Single Channel Base Radio Backplane
Table 12 lists the pin-outs for the 9-pin P8 RS-232 connector.
Gen 2 BR P8 External RS232 Connector Pin-outs
Table 11
Pin No.
Signal
CD
RxD
TxD
DTR (RCLK)
GND
DSR (TCLK)
RTS
CTS
BRG
Table 12 lists the pinouts for the 78-pin P9 Power Supply Connector
Table 12
Gen2 BR P9 Power Connector
Pin No.
6 8 P 8 0 8 0 1E35- A
9/1/2001
Signal
GND
GND
28.6 V
28.6 V
28.6 V
28.6 V
28.6 V
28.6 V
28.6 V
10
28.6 V
11
28.6 V
12
28.6 V
13
28.6 V
14
28.6 V
15
28.6 V
16
14.2 V
17
14.2 V
18
14.2 V
19
14.2 V
39
Troubleshooting
EBTS System Manual - Vol 2
Generation 2/EBRC Single Channel Base Radio Backplane
Table 12
Gen2 BR P9 Power Connector
Pin No.
40
Signal
20
14.2 V
21
14.2 V
22
14.2 V
23
14.2 V
24
5.1 V
25
5.1 V
26
5.1 V
27
5.1 V
28
5.1 V
29
5.1 V
30
5.1 V
31
5.1 V
32
GND
33
GND
34
GND
35
GND
36
GND
37
GND
38
GND
39
GND
40
GND
41
GND
42
GND
43
GND
44
GND
45
GND
46
GND
47
GND
48
GND
49
GND
50
GND
51
GND
52
GND
53
GND
54
SCR_SHUT
68P80801E35-A
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EBTS System Manual - Vol 2
Troubleshooting
Generation 2/EBRC Single Channel Base Radio Backplane
Table 12
Gen2 BR P9 Power Connector
Pin No.
Signal
55
SCR_THRESH
56
RELAY_ENABLE
57
SHUTDOWN
58
28V_AVG
59
BATT_TEMP
60
SPI_MISO
61
SPI_MOSI
62
SPI_CLK
63
A6
64
65
66
67
A0(CS1)
68
A1(CS2)
69
A5
70
71
A4
72
73
A3
74
GND
75
A2
76
GND
77
GND
78
GND
Table 13 describes the coaxial P11 Ethernet connector on the Gen 2 BR.
Table 13
Gen 2 BR P11 Ethernet Connector Pinout
Coaxial
Description
Center
Ethernet
Outer
GND
NOTE: Ethernet ground on the outer
conductor of P11 is DC isolated from
station ground.
6 8 P 8 0 8 0 1E35- A
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41
Troubleshooting
EBTS System Manual - Vol 2
Generation 2/EBRC Single Channel Base Radio Backplane
Table 14
Pin
Gen 2 BR P12 DC In Connector
Description
+ BATTERY
+ BATTERY
- BATTERY (RTN)
- BATTERY (RTN)
+ BATTERY
+ BATTERY
- BATTERY (RTN)
- BATTERY (RTN)
Table 15 lists the pin-outs for the 5 MHz/1PPS P13 connector.
Tables 16 through 19 list the pin-outs for the SMA and blindmate connectors for
Receivers 1- 3, BRC, Exciter and PA.
Table 15
Gen 2 BR P13 Connector Pin-outs
Connector
Signal
ETHERNET - A (or 5MHZ IN*)
* May appear as indicated in parenthesis on some production
units.
Table 16
Gen 2 BR SMA Connectors- Receivers
Connector
Signal
P19
RCV ONE RF IN
P20
RCV TWO RF IN
P21
RCV THREE RF IN
Table 17
Gen 2 BR Blind Mates - BRC
Connector
Signal
P10
SPARE* (or 5MHZ/1 PPS - A)
P11
ETHERNET* (or ETHERNET - A)
*May appear as indicated in parenthesis on some production
units.
42
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EBTS System Manual - Vol 2
Troubleshooting
Generation 2/EBRC Single Channel Base Radio Backplane
Table 18
Connector
Signal
P14
EXCITER OUT
P15
EXCITER FEEDBACK
Table 19
6 8 P 8 0 8 0 1E35- A
9/1/2001
Gen 2 BR Blind Mates - Exciter
Gen 2 BR Blind Mates - PA
Connector
Signal
P16
PA FEEDBACK
P17
PA IN
P18
PA RF OUT
43
Acronyms
Acronyms
A/D
Analog-to-Digital
CC
Control Cabinet
Amperes
CD
Carrier Detect
AC
Alternating Current
cd
change directory
ACT
active
CLK
Clock
ADA
Americans with Disabilities Act
CLT
Controller
AGC
Automatic Gain Control
cm
centimeter
AIC
Ampere Interrupting Capacity
CMOS
AIS
Alarm Indication Signal (Keep Alive)
Complementary Metal Oxide
Semiconductor
ANSI
American National Standards Institute
CPU
Central Processing Unit
ASCII
American National Standard Code for
Information Interchange
CSMA/CD
Carrier Sense Multiple Access with
Collision Detect
ASIC
Application Specific Integrated Circuit
CTI
Coaxial Transceiver Interface
Aux
auxiliary
CTL
Control (Base Radio Control)
avg
average
CTS
Clear-to-Send
AWG
American Wire Gauge
D/A
Digital-to-Analog
bd
baud
DAP
Dispatch Application Processor
BDM
Background Debug Mode
DB-15
15-pin D-subminiature
BER
Bit Error Rate
DB-9
9-pin D-subminiature
BERT
Bit Error Rate Test
dB
Decibel
BMR
Base Monitor Radio
dBc
Decibels relative to carrier
BNC
Baby “N” Connector
dBm
Decibels relative to 1mW
BPV
Bipolar Variation
DC
Direct Current
BR
Base Radio
DCE
Data Circuit-Terminating Equipment
BRC
Base Radio Controller
DCSPLY
DC Supply
BSC
Base Site Controller
DDM
Dual Device Module
BTU
British Thermal Unit
deg
degree
BW
bandwidth
DIN
Deutsche Industrie-Norm
C/N + I
Carrier Power to Noise + Interference
Ratio
DIP
Dual In-line Package
div
division
Global Telecommunications Solutions Sector
6 8 P 8 0 8 0 1E35- A
9/1/2001
1301 E. Algonquin Road, Schaumburg, IL 60196
Acronyms
-2
EBTS System Manual - Vol 2
DMA
Direct Memory Access
HSMR
High Elevation Specialized Mobile Radio
DOP
Dilution of Precision
HSO
High Stability Oscillator
DRAM
Dynamic Random Access Memory
HVAC
Heating/Ventilation/Air Conditioning
DSP
Digital Signal Processor
Hz
Hertz
DTE
Data Terminal Equipment
I/O
Input/Output
DTTA
Duplexed Tower-Top Amplifier
IC
Integrated Circuit
DVM
Digital Volt Meter
iDEN
integrated Dispatch Enhanced Network
E1
European telephone multiplexing
standard
IEEE
Institute of Electrical and Electronic
Engineers
EAS
Environmental Alarm System
IF
intermediate frequency)
E-NET
Ethernet
iMU
iDen Monitor Unit
EBTS
Enhanced Base Transceiver System
in
inches
EGB
Exterior Ground Bar
in
injection
EIA
Electronics Industry Association
iSC
integrated Site Controller
EMI
Electro-Magnetic Interference
ISA
Industry Standard Architecture
EPROM
Erasable Programmable
Memory
kg
kilogram
EEPROM
Electronically Erasable Programmable
Read Only Memory
kHz
kiloHertz
LAN
Local Area Network
Read
Only
ERFC
Expansion RF Cabinet
LANIIC
Local Area Network Interface IC
ESI
Ethernet Serial Interface
LAPD
Link Access Procedure D-Channel
ESMR
Enhanced Special Mobile Radio
lbs
pounds
EX
Exciter
LDM
Linear Driver Module
FB
feedback
LED
Light Emitting Diode
FCC
Federal Communications Commission
LFM
Linear Final Module
FIFO
First-In, First-Out
LIU
Line Interface Unit
FNE
Fixed Network Equipment
LLC
Link Layer Controller
freq
frequency
LNA
Low Noise Amplifier
FRU
Field Replaceable Unit
LO
Local Oscillator
Gen 3 SC
Generation 3 Site Controller
LOS
Loss of Signal
GFI
Ground Fault Interrupter
MAU
Media Access Unit
GND
ground
max
maximum
GPS
Global Positioning System
MC
Multicoupler
GPSR
Global Positioning System Receiver
MGB
Master Ground Bar
HDLC
High-level Data Link
MGN
Multi-Grounded Neutral
68P80801E35-A
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EBTS System Manual - Vol 2
Acronyms
MHz
MegaHertz
ppm
parts per million
min
minimum
PPS
Pulse Per Second
min
minute
PS
Power Supply
MISO
Master In/Slave Out
PSTN
Public Switched Telephone Network
mm
millimeter
PVC
Polyvinyl Chloride
MMI
Man-Machine-Interface
pwr
power
MOSI
Master Out/Slave In
QAM
Quadrature Amplitude Modulation
MPM
Multiple Peripheral Module
QRSS
Quasi Random Signal Sequence
MPS
Metro Packet Switch
Qty
Quantity
MS
Mobile Station
R1
Receiver #1
ms
millisecond
R2
Receiver #2
MSC
Mobile Switching Center
R3
Receiver #3
MSO
Mobile Switching Office
RAM
Random Access Memory
MST
Modular Screw Terminals
RCVR
Receiver
mV
milliVolt
Ref
Reference
mW
milliWatt
RF
Radio Frequency
N.C.
Normally Closed
RFC
RF Cabinet
N.O.
Normally Open
RFDS
RF Distribution System
NEC
National Electric Code
RFS
RF System
NIC
Network Interface Card
ROM
Read Only Memory
no.
number
RPM
Revolutions Per Minute
NTM
NIC Transition Module
RSSI
Received Signal Strength Indication
NTWK
Network
RTN
Return
OMC
Operations and Maintenance Center
RU
Rack Unit
OSHA
Occupational Safety and Health Act
Rx
Receive
PA
Power Amplifier
RXDSP
Receive Digital Signal Processor
PAL
Programmable Array Logic
SCI
Serial Communications Interface
PC
Personal Computer
SCON
VME System Controller
PCCH
Primary Control Channel
SCRF
PDOP
Position Dilution of Precision
Stand-alone Control and RF Cabinet
(configuration)
pF
picoFarad
SCSI
Small Computer System Interface
PLL
Phase Locked Loop
sec
second
P/N
Part Number
SGC
Software Gain Control
P/O
Part Of
SINAD
Signal Plus Noise Plus Distortion to Noise
Plus Distortion Radio
6 8 P 8 0 801E35- A
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-3
Acronyms
-4
EBTS System Manual - Vol 2
SMART
Systems Management Analysis, Research
and Test
SPI
Serial Peripheral Interface
SQE
Signal Quality Estimate
SRAM
Static Random Access Memory
SRC
Subrate Controller
SRI
Site Reference Industry standard
SRIB
SMART Radio Interface Box
SRRC
Single Rack, Redundant Controller
(configuration)
SRSC
Single Rack, Single Controller
(configuration)
SS
Surge Suppressor
SSC
System Status Control
SSI
Synchronous Serial Interface
ST
Status
STAT
Status
Std
Standard
S/W
Software
T1
North american telephone mutiplexing
standard
TB
Terminal Board
TDM
Time Division Multiplex
telco
telephone company
SCON
VME System Controller
TISIC
TDMA Infrastructure Support IC
TSI
Time Slot Interface
TSI
Time Slot Interchange
TTA
Tower-Top Amplifier
TTL
Transistor - Transistor Logic
Tx
Transmit
TXD
Transmit Data
TXDSP
Transmit Digital Signal Processor
Txlin
Tranlin IC
typ
typical
UL
Underwriters Laboratories
Volts
VAC
Volts - alternating current
VCO
Voltage Controlled Oscillator
VCXO
Voltage Controlled Crystal Oscillator
VDC
Volts - direct current
VFWD
Voltage representation of Forward Power
VME
Versa-Module Eurocard
Vp-p
Voltage peak-to-peak
VREF
Voltage representation of Reflected Power
VSWR
Voltage Standing Wave Radio
Watt
WDT
Watchdog Timer
WP
Write Protect
WSAPD
Worldwide Systems and Aftermarket
Products Division
68P80801E35-A
9/1/200 1
Parts and Suppliers
This appendix contains recommended part numbers (p/n) and manufacturers for
various hardware, tools, and equipment used during installation of the EBTS.
Also contained in this appendix is other installation related information, such as
determining types of wire lugs, lengths and sizes of various wires and cables,
custom cabling information, and fuses.
All suppliers and model numbers listed are recommended due to their proven
performance record in previous installations. Motorola cannot guarantee the
effectiveness of the installation or performance of the system when using other
supplier parts.
Addresses, phone numbers, fax numbers, and other information is presented for
each of the recommended suppliers, when possible.
NOTE
In some listings, phone number and address are for
corporate or main sales office. Other sales locations
may be available. Call number given or go to website
for expanded listings.
NOTE
This information is subject to change without notice.
Surge Arrestors
Two types of surge arrestors should be used in the EBTS site, including:
❐
AC Power and Telco
❐
Antenna Surge Arrestors
Global Telecommunications Solutions Sector
6 8 P 8 0 8 0 1E35- A 9/1/2001
1301 E. Algonquin Road, Schaumburg, IL 60196
Parts and Suppliers
EBTS System Manual - Vol 2
AC Power and Telco Surge Arrestors
The recommended AC Power and Telco surge arrestors are both manufactured by
Northern Technologies. The model numbers are:
❐
AC Power - LAP-B for 120/240 single-phase
LAP-C for 208 Vac three-phase
❐
Telco -
TCS T1D
Northern Technologies
P.O. Box 610
Liberty Lake, WA 99019
Phone: 800-727-9119
Fax: 509-927-0435
Internet: www.north-tech.com
Antenna Surge Arrestors
The recommended antenna surge arrestors are manufactured by Polyphaser Inc.
The following models are recommended:
❐
Base Monitor Radio antennas - ISS50NXXC2MA
❐
Base Radio antenna (800 MHz tower top amplifier only) - 094-0801T-A
❐
Base Radio antenna (800 MHz cavity combined, transmit only; up to 5
channels) - IS-CT50HN-MA
❐
Base Radio antennas (800 MHz duplexed) - IS-CT50HN-MA
❐
Base Radio antennas (900 MHz duplexed) - 097-0311G-A.2
❐
GPS antennas - 092-082-0T-A
❐
Lightningarrestorbracketkit-Contact your local Motorola Sales representative
to order this kit
❐
Receive Tower Top amplifier - 094-0801T-A
❐
Tower top test port cable - IS-50NX-C2
Polyphaser, Inc.
P.O. Box 9000
Minden, NV 89423-9000
Phone: 800-325-7170
702-782-2511
Fax: 702-782-4476
Internet: www.polyphaser.com
Motorola has set up several kits that contain the necessary arrestors with proper
mounting hardware for the various antenna configurations. Contact your local
Motorola representative for these OEM kits.
68P80801E35-A
9/1/2001
EBTS System Manual - Vol 2
Parts and Suppliers
RF Attenuators
Several RF attenuators are needed at a site to ensure proper receive adjustments.
The attenuators are used at the LNA sites to offset the excess gain from the Tower
Top amplifiers, to balance the receive path, and to attenuate the BMR signal path.
Use the following specifications when choosing vendors:
❐
Specified frequency range
❍
800 MHz systems – requires attenuator specification to include
806-821 MHz range
❍
900 MHz systems – requires attenuator specification to include
896-901 MHz range
❐
1 dB increments
❐
0.5 dB accuracy or better
❐
Female N connector / Male N connector
Alan Industries, Inc.
745 Green Way Drive
P.O. Box 1203
Columbus, IN 47202
Phone: 800-423-5190
812-372-8869
Fax: 812-372-5909
Huber + Suhner, Inc.
19 Thompson Drive
Essex, VT 05451
Phone: 802-878-0555
Fax: 802-878-9880
Internet: www.hubersuhnerinc.com
JFW Industries, Inc.
5134 Commerce Square Drive
Indianapolis, IN 46237
Phone: 317-887-1340
Fax: 317-881-6790
email: JFW atten@aol.com
Pasternack Enterprises
P.O. Box 16759
Irvine, CA 92713
Phone: 714-261-1920
Fax: 714-261-7451
RF attenuators are also needed for test equipment. The attenuators must be used
between frequency reference equipment, service monitors, and the Motorola
EBTS equipment. The following attenuators should be used at the site
during optimization:
❐
6 8 P 8 0 8 0 1E35- A
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Female BNC connector / Male BNC connector, 10 dB attenuator (1 W)
between the Rubidium Standard and the R2660 Communications Analyzer.
Refer to the System Testing section.
Parts and Suppliers
EBTS System Manual - Vol 2
❐
Female BNC connector / Male BNC connector, 30 dB attenuator (1 W)
between the Rubidium Standard and the R2660. Refer to the System Testing,
section.
Emergency Generator
Several different sizes of generators are available. Determine the loading
requirements of the site prior to ordering a generator. A recommended
manufacturer of the emergency backup generator power system is:
Generac Corporation
P.O. Box 8
Waukesha, WI 53187
Phone: 414-544-4811
Fax: 414-544-0770
Portable Generator Connection
The recommended portable generator connection is the AJA200-34200RS ,
manufactured by Appleton Electric. Figure 1 is a view of a connector located on
the building. An adapter may be required if local electrical standards conflict with
the wiring configuration.
POLARIZATION
RIB
GROUND
HOT
NEUTRAL
HOT
EBTS078
061295JNM
Figure 1
Portable Generator Connector
An alternate supplier of the portable generator connection is the ARKTITE Heavy
Duty Receptacle Model 80, Style 2, 200 Amps
, manufactured by Crouse-Hinds.
Cooper Industries
Crouse-Hinds, Inc.
P.O. Box 4999
Syracuse, NY 13221
Phone: 315-477-7000
Fax: 315-477-5717
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EBTS System Manual - Vol 2
Parts and Suppliers
GPS Evaluation Kit
The GPS evaluation kit (part number VPEVL0002) is available from Motorola
Position and Navigation System Business.
Motorola Position and Navigation System Business
4000 Commercial Avenue
Northbrook, IL 60062
Phone: 847-714-7329
Fax: 847-714-7325
GPS Antenna Amplifier
There are two recommended manufacturers of the GPS antenna amplifiers. The
model numbers are:
❐
LA20RPDC-N (made by WR, Inc.) (Type 1)
❐
GA-12F-N (made by CTS Co.) (Type 2)
WR, Inc.
710A W. 4th Street
Pueblo, CO 81003
Phone: 800-463-3063
719-595-9880
Fax: 719-595-9890
Internet: www.fleetpc.com
email: gpsman@wr-inc.com
Carl Tinch Sales (CTS) Co.
811 S. Central Expressway #518
Richardson, TX 75080
Phone: 972-231-1322
Fax: 972-231-3403
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Parts and Suppliers
EBTS System Manual - Vol 2
Specifications
Type 1
Type 2
Dimensions
3.293” x 2” x 1”
1” Dia. x Approx. 6”
Connectors
Type N female, both ends
Type N female, both ends
Gain
23 dB gain typical
20 dB min.
12 dB ± 2 dB
Noise Figure
2.6 dB typical
4.0 dB
VSWR
< 2.2:1
<2:1
Frequency Range
1575.42 ± 50 MHz
1575.42 ± 10 MHz
Filtering
Yes
Yes
Maximum Input
Power
+ 13 dBm
0 dBm
Voltage
4.5 - 15 VDC
4.5 - 15 VDC
Current @ 5 V
< 15 mA typical
< 20 mA
ANTENNA
RF INPUT
+13dBM MAX
VDC THRU
RECEIVER/
ANT VOLTAGE
2"
3 5/16"
1"
TYPE 1
INPUT
OUTPUT
2"
Approximately 6"
TYPE 2
EBTS126
051094JNM
Figure 2
GPS Antenna Amplifiers
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EBTS System Manual - Vol 2
Parts and Suppliers
Site Alarms
Three types of alarms should be used in an EBTS site, including:
❐
Intrusion Alarm
❐
Smoke Alarm
❐
Temperature Alarm
Intrusion Alarm
The recommended intrusion alarm is the Sonitrol 29A .
Sonitrol
211 N. Union Street, Suite 350
Alexandria, VA 22314
Phone: 800-326-7475
Fax: 703-684-6612
Internet: www.sonitrol.com
Smoke Alarm
A recommended smoke alarm is the Sentrol 320CC . This smoke alarm provides a
relay closure for the iMU alarm. These smoke detectors are available from many
electrical wholesale distributors. For the location nearest you, call between 6 a.m.
and 5 p.m. Pacific Standard Time and ask Sales for the location of the nearest EW
(Electric Wholesale) distributor.
Sentrol, Inc.
12345 SW Leveton Drive
Tualatin, OR 97062
Phone: 800-547-2556
503-692-4052
Internet: www.sentrol.com
Temperature Alarm
The recommended temperature alarm is the Grainger #2E206 thermostat. This
alarm is manufactured by Dayton Electronics and distributed by W.W. Grainger:
W.W. Grainger
Locations Nationwide
Phone: 800-323-0620
Fax: 800-722-3291
Internet: www.grainger.com
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Parts and Suppliers
EBTS System Manual - Vol 2
Cabinet Mounting Hardware
The cabinet mounting hardware is site dependent and must be procured locally.
Equipment Cabinets
The mounting hardware used to secure the Equipment Cabinets containing
control and/or RF hardware must be able to provide 1545 pounds of
retention force.
❐
If the cabinets are to be secured to a concrete floor, 1/2" grade 8 bolts with
anchors are recommended.
❐
If the cabinets are to be secured to another type of floor, determine the
appropriate mounting hardware.
Power Supply Rack
The Motorola offered Power Supply rack from Power Conversion Products is
available in a standard and an earthquake rack.
Power Conversion Products, Inc.
42 East Street
P.O. Box 380
Crystal Lake, IL 60039-0380
Phone: 800-435-4872 (customer service)
815-459-9100
Fax: 815-526-2524
Internet: www.pcpinc.com
If the earthquake rack is used, it must be bolted to the floor using the 02100-13
High Performance Anchor Kit , consisting of:
❐
anchors (qty. 4)
❐
load sharing plates (qty. 2)
❐
large square washers (qty. 8)
Hendry Telephone Products
P.O. Box 998
Goleta, CA 93116
Phone: 805-968-5511
Fax: 805-968-9561
Internet: www.hendry.com
email: mailbox@hendry.com
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EBTS System Manual - Vol 2
Parts and Suppliers
Cable Connections
The recommended manufacturer for all wire lugs used during EBTS installation is
Thomas & Betts. All wire lug part numbers listed are for Thomas & Betts.
Thomas & Betts
1555 Lynnfield Road
Memphis, TN 38119
Phone: 800-888-0211 (general information)
800-248-7774 (sales/technical support)
NOTE
Double hole wire lugs are preferred, but single hole
wire lugs can be used where mounting requirements
dictate their use.
Selecting Master Ground Bar Lugs
Table 1 identifies recommended part numbers for wire lugs used to connect
chassis ground wiring to the master ground bar from each cabinet.
Table 1
Recommended Master Ground Bar Lugs
Wire Size
Wire Type
Lug
Color
Description
P/N †
#2 AWG
Stranded
Brown
Single 1/4” diameter hole
54107
#2 AWG
Stranded
Brown
Double 1/4” diameter hole, 5/8” center
54207
#6 AWG
Stranded
Blue
Single 1/4” diameter hole
54105
#6 AWG
Stranded
Blue
Double 1/4” diameter hole, 5/8” center
54205
NOTE: These lugs require the use of the TBM5-S crimping tool.
† All part numbers are Thomas & Betts.
Selecting Cabinet Ground Lugs
Table 2 identifies recommended part numbers for wire lugs used to connect
chassis ground wiring to the grounding point of each cabinet.
Table 2
Recommended Junction Panel Ground Lugs
Wire Size
Wire Type
Lug
Color
Description
P/N †
#2 AWG
Stranded
Brown
Single 1/2” diameter hole
54145
#6 AWG
Stranded
Blue
Single 3/8” diameter hole
E6-12
NOTE: These lugs require the use of the TBM5-S crimping tool.
† All part numbers are Thomas & Betts.
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Parts and Suppliers
EBTS System Manual - Vol 2
Battery System
Connections
The cable loop length refers to the total length of wire within a given circuit. For
example, the combined length of the -48 Vdc (hot) lead and the DC return lead
equals the cable loop length. This would mean that a cabinet that needs 16 feet of
wire between the batteries and Power Supply Rack has a total loop length of
32 feet.
Determining Battery System Wire Size
The wire size for the connection between the batteries and the Power Supply Rack
is determined by the required wire length and the maximum allowable voltage
drop. The voltage drop in the loop must be kept to below 200 mV. The wire
selected should be UL approved and contain a high number of strands
for flexibility.
For a standard configuration, the Power Supply rack is located directly adjacent to
the batteries with a cable loop length of 20 feet or less, which requires the use of a
4/0 wire. Table 3 shows recommended wire sizes for various loop lengths. Larger
wire sizes may be used if the recommended sizes are not available. The
recommended wire sizes are large enough to allow site expansion to a fully
loaded site.
Table 3
Battery System Wire Size
Loop Length
Wire size
20 feet
4/0 (or 250 MCM)
30 feet
350 MCM
45 feet
500 MCM
Selecting Battery System Lugs
Depending on the wire size used and the manufacturer of the Batteries, different
wire lugs are crimped onto the power cable ends. After the wire size has been
determined from Table 3, verify the manufacturer of the Batteries (Dynasty
or Absolyte ).
Two different battery systems are offered with the EBTS. The Dynasty system is a
low to medium capacity, field expandable system supplied for smaller sites or
sites with minimal backup hour requirements. This system is custom designed to
Motorola specifications. The Dynasty system is manufactured by
Johnson Controls:
10
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EBTS System Manual - Vol 2
Parts and Suppliers
C & D Technologies
900 East Keefe Avenue
P.O. Box 591
Milwaukee, WI 53212
Phone: 414-967-6500
Fax: 414-961-6506
The Absolute IIP battery system is a heavy duty, high capacity battery system
manufactured by GNB Technologies:
GNB Technologies
829 Parkview Boulevard
Lombard, IL 60148
Phone: 800-872-0471
630-629-5200
Fax: 630-629-2635
Refer to Table 4 to determine the proper wire lug for the connection of that wire to
the Power Supply rack.
Table 4
Power Supply Rack Connection Lugs
Wire Size
Cabinet Lug
Crimp Tool
Lug P/N †
4/0
Double 3/8” hole, 1” center
TBM5-S
54212
250 MCM
Double 3/8” hole, 1” center
TBM8-S
54213
350 MCM
Double 3/8” hole, 1” center
TBM8-S
54215
500 MCM
Double 3/8” hole, 1” center
TBM8-S
54218
† All part numbers are Thomas & Betts.
Refer to Table 5 to determine the proper wire lug for the connection to the
batteries, based on the wire size and battery manufacturer. One column lists the
selection for Dynasty and the other lists the selection for Absolyte IIP .
Table 5
Battery Connection Lugs
Wire
Size
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Lug
Color
Dynasty
Description
Absolyte IIP
P/N
Description
P/N
4/0
Purple
Double 3/8” hole, 1” center
54212
Single 1/2” hole
54170
250 MCM
Yellow
Double 3/8” hole, 1” center
54215
Single 1/2” hole
54113
350 MCM
Red
Double 3/8” hole, 1” center
54218
Single 1/2” hole
54115
500 MCM
Brown
Double 3/8” hole, 1” center
54220
Single 5/8” hole
54118
11
Parts and Suppliers
EBTS System Manual - Vol 2
Anti-Oxidant Greases
Any one of the following anti-oxidant greases are recommended for connections
to the positive (+) and negative (-) terminals of the batteries:
❐
No-Ox
❐
OxGuard
❐
Penetrox
Intercabinet Cabling
Ethernet and alarm cables connecting to the junction panels of each cabinet are
supplied with the system. These cables may not be suitable for every EBTS site. It
may be necessary to locally manufacture cables for a custom fit. Information is
provided for both supplied cables and custom cables.
Supplied Cables
The cables listed in Table 6 are supplied with the system. The length of these
cables should be sufficient if the considerations outlined in the Pre-Installation
section are followed.
Table 6
Supplied Inter-Cabinet Cabling
Description
Qty.
P/N †
120" long, N-type Male to N-type male cable
0112004B24
108" long, BNC Male-to-BNC Male, RG400
cable
2*
0112004Z29
210" long, 8-pin Modular plug cable
1*
3084225N42
186" long, PCCH redundancy control cable
1**
3082070X01
Phasing Harness
0182004W04
† All part numbers are Motorola.
* Per RF rack.
** Per Control rack.
Making Custom Cables
If custom Ethernet or 5 MHz cables must be locally manufactured, use the part
numbers listed in Table 7 for ordering the required materials.
Table 7
Parts for Ethernet and 5 MHz Cables
Description
Qty.
P/N †
Connector, BNC male
As required
2884967D01
Cable, RG400
As required
3084173E01
† All part numbers are Motorola.
12
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EBTS System Manual - Vol 2
Parts and Suppliers
Table 8 lists the part numbers for custom alarm cables.
Table 8
Parts for Alarm Cables
Description
Qty.
P/N †
Connector, 8-pin modular
As required
2882349V01
Cable, 8-wire
As required
Locally procured
† All part numbers are Motorola.
Table 9 lists the part numbers for custom PCCH cables.
Table 9
Parts for Extending PCCH Redundancy Control Cables
Description
Qty.
P/N †
186” long, PCCH redundancy
control cable
1*
3082070X01
8-pin male Telco to 8-pin male
Telco extension cable, length:
as needed
As required
Locally procured
Modular, 8-pin
female-to-female adaptor
As required
Locally procured
NOTE: Motorola does not guarantee proper operation of system if longer PCCH
cable is used.
† All part numbers are Motorola.
* Per Control rack.
Equipment Cabinet Power Connections
Selecting Power Connection Lugs
Table 10 identifies recommended part numbers for lugs used for power
connections between the Power Supply rack and the Control and RF Cabinets.
The maximum wire size accepted by the Control and RF Cabinets is 2/0. The
Control and RF Cabinets use screw type compression connectors and do not
require lugs.
Table 10
Size
Recommended Power Connection Lugs for Power Supply Rack
Lug Color
Description
P/N †
2/0
Black
Double 3/8” hole, 1” center
54210
#2 AWG
Brown
Double 1/4” hole, 5/8” center
54207
#4 AWG
Gray
Double 1/4” hole, 5/8” center
54206
#6 AWG
Blue
Double 1/4” hole, 5/8” center
54205
† All part numbers are Thomas & Betts.
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Parts and Suppliers
EBTS System Manual - Vol 2
Determining Power Connection Wire Size
The cable loop length refers to the total length of wire within a given circuit. For
example, the combined length of the -48 Vdc (hot) lead and the DC return lead
equals the cable loop length. This would mean that a cabinet which needs 16 feet
of wire between the Power Supply rack and equipment cabinets has a total loop
length of 32 feet.
The wire size for the connection between the Power Supply rack and the
equipment cabinets is determined by the required wire length and the maximum
allowable voltage drop. The voltage drop in the loop must be kept to below
500 mV. The wire selected should be UL approved and contain a high number of
strands for flexibility. Table 11 shows the recommended wire sizes for various
loop lengths of the RF Cabinet. Table shows the recommended wire sizes for loop
lengths of the Control Cabinet
For a standard configuration, the equipment cabinets are located adjacent to the
Power Supply rack with a cable loop length less than 35’.
Table 11
Power Connection Wire Size
Loop Length
Wire Size
25 feet or less
#6 AWG
25 to 40 feet
#4 AWG
40 to 60 feet
#2 AWG
60 to 130 feet
1/0 AWG
NOTE: The wire sizes listed are large enough to allow full RF
Cabinet Base Radio capacity.
Table 12
Power Connection Wire Size for Control Cabinet
Loop Length
Wire Size
150 feet or less
#6 AWG
Each equipment cabinet has a total of four Power Supply Rack connections; two
-48 Vdc (hot) and two DC return. Each equipment cabinet contains two separate
power distribution systems. A single hot wire and a single return wire are used
for each side of the bus. Two return leads provide redundancy and allow a
uniform wire size to be used for all 48 Vdc power distribution system
connections.
14
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EBTS System Manual - Vol 2
Parts and Suppliers
Other Recommended Suppliers
The following are the addresses of various suppliers for tools and equipment
used during installation of the EBTS.
Test Equipment
❐
PRFS Rubidium Frequency Standard
Ball Corp. Efratom Inc.
3 Parker
Irvine, CA 92618-1696
Phone: 800-EFRATOM (337-2866)
714-770-5000
Fax: 714-770-2463
Internet: www.efratom.com
❐
Fluke 77 Digital Multimeter
Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
Phone: 425-347-6100
Fax: 425-356-5116
Internet: www.fluke.com
email: fluke-info@tc.fluke.com
Service Computer
A PC or Macintosh can be used for EBTS optimization and field service. The
following are the minimum requirements:
❐
19,200 bps serial port
❐
one floppy drive
❐
communication software, such as Smartcomm II or Procomm Plus
The Test Mobile Application is only available for the Macintosh platform. Contact
your local Motorola sales representative.
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15
Parts and Suppliers
EBTS System Manual - Vol 2
Software
❐
PKZIP software
PKWare Inc.
9025 N. Deerwood Drive
Brown Deer, WI 53223
Phone: 414-354-8699
Fax: 414-354-8559
Internet: www.pkware.com
❐
ProComm software
Quarterdeck Select Corporation
P.O. Box 18049
Clearwater, FL 34622-9969
Phone: 800-683-6696
Fax: 813-532-4222
Internet: www.Qdeck.com
Spare Parts Ordering
Motorola Inc.
America’s Part Division
Attn: Order Processing
1313 E. Algonquin Road
Schaumburg, IL 60196
Phone: 800-422-4210 (sales/technical support)
Fax: 847-538-8198
Newark Electronics
Call for a local phone number in your area to order parts
Phone: 800-463-9275 (catalog sales)
773-784-5100
Fax: 847-310-0275
Internet: www.newark.com
16
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