User's Manual

ManualsBrandsMotorola Solutions ManualsElectronicsEnhanced Base Transceiver System (EBTS)

APPLICANT: MOTOROLA INC. EQUIPMENT TYPE: ABZ89FC5794

EXHIBIT 8

INSTRUCTION MANUALS

The instruction and service manual for this base radio are not published at this time. However, draft copy of the

manual is available and has been included as part of the 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) as soon as they become available. All of the descriptions and schematics included this

filing package are up to date.

Summary of content (228 pages)

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APPLICANT: MOTOROLA INC. EQUIPMENT TYPE: ABZ89FC5794 INSTRUCTION MANUALS The instruction and service manual for this base radio are not published at this time. However, draft copy of the manual is available and has been included as part of the 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) as soon as they become available.
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APPLICANT: MOTOROLA INC. EQUIPMENT TYPE: ABZ89FC5794 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.
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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.
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1 Contents Contents.......................................................................................................................... i List of Figures .............................................................................................................. iv List of Tables ................................................................................................................ vi Foreword..................................................................................................
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Contents EBTS System Manual - Vol 2 800 MHz QUAD Channel Receiver – CLN1283;.............................................................. 9-12 Troubleshooting Single Channel Base Radios .................................................... 10-1 Base Radio/Base Radio FRU Replacement Procedures ..................................................... 10-5 Station Verification Procedures.......................................................................................... 10-9 Single Channel BR Backplane..
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Contents EBTS System Manual - Vol 2 List of Figures List of Figures Figure:1-1 Base Radio (Typical) ..................................................................................................................... 1-4 Figure:1-2 QUAD Channel Base Radio (Typical) .......................................................................................... 1-9 Figure:1-3 Figure:1-4 800/900 MHz Base Radio Functional Block Diagram ................................................................
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EBTS System Manual - Vol 2 Contents List of Figures Figure:4-8 Power Amplifier Functional Block Diagram............................................................................... 4-16 Figure:4-9 QUAD Channel Power Amplifier Functional Block Diagram (Sheet 1 of 1) ............................. 6-17 Figure:5-1 Figure:5-2 DC Power Supply .......................................................................................................................... 7-2 Quad Carrier Power Supply ...........
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Contents EBTS System Manual - Vol 2 List of Tables List of Tables vi Table 1-1 Chapter Topics ............................................................................................................................... 1-1 Table 1-2 BR General Specifications............................................................................................................. 1-5 Table 1-3 Table 1-4 Transmit Specifications ...................................................................................
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EBTS System Manual - Vol 2 Contents List of Tables Table 8-3 70W, 800 MHz PA Transmitter Parameters .............................................................................. 10-17 Table 8-4 60W, 900 MHz PA – CLN1355 Transmitter Parameters .......................................................... 10-21 Table 8-5 Table 8-6 40W, 1500 MHz PA Transmitter Parameters ............................................................................ 10-25 Base Radio Backplane Connectors .....................
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Foreword Foreword About This Manual 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, or 1500 MHz base radios.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Foreword 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, Þeld repair is discouraged.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios General Safety Information General Safety Information The United States Department of Labor, through the provisions of the Occupational Safety and Health Act of 1970 (OSHA), has established an electromagnetic energy safety standard which applies to the use of this equipment. Proper use of this radio will result in exposure below the OSHA limit, however, this applies only within the United States of America.
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1 800/900/1500 MHz Base Radio Overview Overview This section provides technical information for the 800/900/1500 MHz Base Radio (BR). Table 1-1 describes covered topics.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Table 1-1 Chapter Topics Page Chapter Description Receiver 7-39 Describes the functions and characteristics of the 800 MHz and 900 MHz 3X Receiver modules Troubleshooting Single Channel Base Radios 8-1 Provides troubleshooting procedures, replacement procedures, and receiver/transmitter veriÞcation tests for Single Channel Base Radios Base Radio/Base Radio FRU Replacement Procedures 8-5 Provides instructions and guidelines for Single Chan
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Single Carrier Base Radio Overview Single Carrier Base Radio Overview The BR provides reliable digital BR capabilities in a compact software-controlled design. Increased channel capacity is provided through voice compression techniques and Time Division Multiplexing (TDM).
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Single Carrier Base Radio Overview Controls and Indicators The Power Supply and BRC 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 BRC sections of this chapter. The Power Supply contains two front panel indicators; the BRC contains eight front panel indicators.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Single Carrier Base Radio Overview Transmit Specifications Table 1-3 lists transmit speciÞcations for the BR. Table 1-3 Transmit Specifications Specification Value or Range Average Power Output: (800 MHz) 40 W PA 2 - 40 W (800 MHz) 70 W PA 4 - 70 W (900 MHz) 60 W PA 5 - 60 W (1500 MHz) 40 W PA 10 - 40 W Transmit Bit Error Rate (BER) 0.01% Occupied Bandwidth 18.5 kHz Frequency Stability * 1.5 ppm RF Input Impedance 50 Ω (nom.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Single Carrier Base Radio Overview NOTE FCC Compliance Notice: The Base Radio (BR) is FCC Compliant only when used in conjunction with Motorola supplied RF Distribution Systems. Motorola does not recommend that this BR be used without a Motorola approved RF Distribution System. It is the customerÕs responsibility to Þle for FCC approval if the BR is used with a non-Motorola supplied RF Distribution System.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Single Carrier Base Radio Overview All Receivers within a given BR are programmed to the same receive frequency. The signals from each receiver are fed to the BRC 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.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 QUAD Channel Base Radio Overview QUAD Channel Base Radio Overview The QUAD Channel BR provides reliable, digital BR capabilities in a compact, software-controlled design. Voice compression techniques, time division multiplexing (TDM) and multi-carrier operation provide increased channel capacity.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios QUAD Channel Base Radio Overview Controls and Indicators Power Supply and EX / CNTL controls and indicators monitor BR status and operating conditions, and also aid in fault isolation. The Power Supply and EX / CNTL sections of this chapter discuss controls and indicators for both modules. The Power Supply has two front panel indicators. The EX / CNTL has twelve front panel indicators. The Power Supply power switch applies power to the BR.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 QUAD Channel Base Radio Overview Transmit Specifications Table 1-6 lists the BR transmit speciÞcations. Table 1-6 Transmit Specifications Specification Average Power Output: Value or Range Total PA Per Carrier (800 MHz)Single Carrier 5 - 52 W 5 - 52 W (800 MHz) Dual Carrier 5 - 52 W 2.5 - 26 W (800 MHz) Triple Carrier 5 - 48 W 1.7 - 16 W (800 MHz) QUAD Channel 5 - 42 W Transmit Bit Error Rate (BER) 0.01% Occupied Bandwidth 18.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios QUAD Channel Base Radio Overview NOTE FCC Compliance Notice: The Base Radio (BR) is FCC Compliant only when used with Motorola-supplied RF Distribution Systems. Motorola does not recommend using this BR without a Motorolaapproved RF Distribution System. If customer uses the BR with a non-Motorola supplied RF Distribution System, the customer is responsible for Þling for FCC approval.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 QUAD Channel Base Radio Overview The BR uses diversity reception for increased coverage area and improved quality. The Receiver modules within the QUAD Channel BR contain three receiver paths. Two-branch diversity sites use two Receiver paths, and three-branch diversity sites use three Receiver paths. All Receiver paths within a given Receiver module are programmed to the same receive frequency.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Base Radio Overview 800 MHz And 900 MHz Base Radio 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 Functional Block Diagram 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.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Base Radio Overview 1500 MHz Base Radio RECEIVER MODULE RECEIVE ANTENNA Functional Block Diagram RECEIVER MODULE POWER SUPPLY MODULE TLN3429/TLN3339/TLN3338 RECEIVER MODULE TLN3427 MIXER RF IN BAND PASS FILTER IF AMP DIGITAL ATTEN.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 IF FILTER AMP, AGC LPF, AMP, FILTER MIXER IF FILTER AMP, AGC LPF, AMP, FILTER VCO SYNTH SPLITTER ABACUS RECEIVER IC MIXER IF FILTER AMP, AGC PREAMPLIFIER SPLITTER / BYPASS LPF, AMP, FILTER RX3 DATA 16.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 2 Base Radio Controller Overview This section provides technical information for the Base Radio Controller (BRC). Table 2-1 describes covered topics. Table 2-1 Chapter Topics Chapter Page Description 800/900/1500 MHz Base Radio Controller Ð CLN1469; 1500 MHz MC1 Base Radio Controller Ð TLN3425 2-2 Describes the functions and characteristics of the Base Radio Controller (BRC) module for the single channel Base Radio (BR).
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio Controller – CLN1469; 1500 MHz MC1 Base Radio Controller – TLN3425 800/900/1500 MHz Base Radio Controller – CLN1469; 1500 MHz MC1 Base Radio Controller – TLN3425 Overview The Base Radio Controller (BRC) provides signal processing and operational control for other Base Radio modules. Figure 2-1 shows a top view of the BRC with the cover removed.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 800/900/1500 MHz Base Radio Controller – CLN1469; 1500 MHz MC1 Base Radio Controller – TLN3425 Figure:2-1 Base Radio Controller, version CLN1469 (with cover removed) 1.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio Controller – CLN1469; 1500 MHz MC1 Base Radio Controller – TLN3425 Controls and Indicators The BRC monitors the functions of other Base Radio modules. Front panel LEDs indicate the status of modules that the BRC monitors. Upon initial power-up, all front panel LEDs normally ßash three times. A RESET switch allows a manual reset of the Base Radio. Figure 2-3 shows the BRC front panel.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 800/900/1500 MHz Base Radio Controller – CLN1469; 1500 MHz MC1 Base Radio Controller – TLN3425 BR Controller Indicators (Continued) Table 2-3 LED Color EX Red PA Red CTL R1 Red Red R2 Module Monitored Condition Exciter 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 is operating normally (no alarm
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio Controller – CLN1469; 1500 MHz MC1 Base Radio Controller – TLN3425 Pin-outs for the STATUS Connector Table 2-5 Pin-out Signal 1 CD 2 TXD 3 RXD 4 not used 5 GND 6 not used 7 CTS 8 RTS 9 not used Theory of Operation Table 2-6 brießy describes the BRC circuitry. Figures 2-6 and 2-7 are functional block diagrams of the Single Channel BRC.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 800/900/1500 MHz Base Radio Controller – CLN1469; 1500 MHz MC1 Base Radio Controller – TLN3425 Host Microprocessor The host microprocessor is the the BRÕs main controller. The host operates at a clock speed of 16.5 MHz. The Host Glue ASIC provides this clock frequency. The processor controls Base Radio operation according to station software in non-volatile memory. Two EPROMs contain the station software. An EEPROM stores the station codeplug.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio Controller – CLN1469; 1500 MHz MC1 Base Radio Controller – TLN3425 Non-Volatile Memory The Base Radio software resides in two 512K x 8 byte EPROMs. The Host Microprocessor addresses these EPROMs via 19 of 23 host address bus lines. The host accesses EPROM data over the 16-line host data bus. The data that determines the station personality resides in an 8K x 8 byte codeplug EEPROM.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 800/900/1500 MHz Base Radio Controller – CLN1469; 1500 MHz MC1 Base Radio Controller – TLN3425 The LAN coprocessor receives commands from the CPU by reading a speciÞed memory block. The LAN ControllerÕs internal FIFOs optimize microprocessor bus performance. The LAN coprocessor includes an on-chip, Direct Memory Access (DMA) controller. The DMA controller automatically transfers data blocks (buffers and frames) from Ethernet to DRAM.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio Controller – CLN1469; 1500 MHz MC1 Base Radio Controller – TLN3425 The RXDSP operates from a 40 MHz clock provided by an on-board crystal. The RXDSP accepts redigitized signal from the receivers. The RXDSP also provides address and data buses. These buses receive digitized audio from the TISIC. The DSP program and signal processing algorithms reside in three 32K x 8 SRAM ICs. The RXDSP accesses this software there.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 800/900/1500 MHz Base Radio Controller – CLN1469; 1500 MHz MC1 Base Radio Controller – TLN3425 TISIC The TISIC controls internal DSP operations. This circuit provides a number of functions, including the following: ❐ Interfaces with the DSPs via the DSP address and data buses. ❐ Accepts a 16.8 MHz signal and a 1 PPS signal from Station Reference Circuitry. ❐ Outputs a 2.1 MHz reference signal used by the Exciter and Receivers. ❐ Outputs a 4.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio Controller – CLN1469; 1500 MHz MC1 Base Radio Controller – TLN3425 Input Ports Two general purpose, 16-line input ports provide for various input signals from the BRC and station circuitry. These inputs connect to the Host Microprocessor. Input Port P0 -In and Port P1-In each consist of 16 lines. Via the backplane, these lines carry signals from BRC circuitry and other station modules.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 800 MHz QUAD Channel Base Radio Controller 800 MHz QUAD Channel Base Radio Controller Overview The Base Radio Controller (BRC) provides signal processing and operational control for Base Radio modules. The BRC module consists of a printed circuit board, a slide-in housing, and associated hardware. The BRC memory contains the operating software and codeplug. The software deÞnes BR operating parameters, such as output power and operating frequency.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800 MHz QUAD Channel Base Radio Controller allows a manual reset of the Base Radio. Figure 2-5 shows the front panel of the BRC. Figure:2-5 BR Controller (Front View) Indicators Table 2-8 lists and describes the BRC LEDs.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 800 MHz QUAD Channel Base Radio Controller Table 2-8 LED BR Controller Indicators (Continued) Color Module Monitored Condition Red Receiver #1, #2, #3, or #4 Solid (on) FRU failure indication - Receiver (#1, #2, #3 or #4) has a major alarm, and is out of service Flashing (on) Receiver (#1, #2, #3 or #4) has a minor alarm, and may be operating at reduced performance Off Receiver (#1, #2, #3 or #4) is operating normally (no alarms) Solid (
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800 MHz QUAD Channel Base Radio Controller Table 2-10 Pin-outs for the STATUS Connector Pin-out Signal 1 not used 2 TXD 3 RXD 4 not used 5 GND 6 not used 7 not used 8 not used 9 not used Theory of Operation Table 2-11 brießy describes the BRC circuitry. Figure 2-9 is a functional block diagram of the BRC.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 800 MHz QUAD Channel Base Radio Controller BR Controller Circuitry Table 2-11 Circuit Description Ethernet Interface Provides the BRC with a 10Base2 Ethernet communication port to network both control and compressed voice data RS-232 Interface Provides the BRC 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 p
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800 MHz QUAD Channel Base Radio Controller 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 signiÞcantly enhance processor performance. The microprocessor has a 32-line address bus. The processor uses this bus to access non-volatile memory and SDRAM memory.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 800 MHz QUAD Channel Base Radio Controller During the manufacturing process, the factory programs the codeplugÕs default data. The BRC must download Þeld 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.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800 MHz QUAD Channel Base Radio Controller 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.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 800 MHz QUAD Channel Base Radio Controller The TXDSP operates at an external clock speed of 16.8 MHz, provided by the EXBRC local station reference. The TXDSP internal operating clock is 150MHz, produced by an internal Phase Lock Loop (PLL). The TXDSP sends up to four carriers of digitized signal to the EX11 exciter. The exciter converts the digital signal to analog. Also at the exciter, a highly stable clock reclocks the digital data.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800 MHz QUAD Channel Base Radio Controller TISIC The TISIC controls internal DSP operations. This circuit provides the following functions: ❐ For initialization and control, interfaces with one 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.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 800 MHz QUAD Channel Base Radio Controller Input Ports One general-purpose input register provides for BRC 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 and 48 MHz Station Reference Circuitry status outputs and reset status outputs.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 2 Single Channel Base Radio Controller HOST MICROPROCESSOR / HOST ASIC 16.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Base Radio Controller TISIC INTERFACE CIRCUITRY TRANSMIT SYNCHRONOUS SERIAL INTERFACE (TXSSI) RX1 DATA 3 DIFFERENTIAL DATA FROM RECEIVER MODULE #1 VIA BACKPLANE SYNCHRONOUS SERIAL INTERFACE (SSI) SERIAL BUS HOST PORT HOST ADDRESS BUS SERIAL COMMUNICATIONS INTERFACE (SCI) DIFFERENTIAL-TO-TTL CONVERTER/BUFFER RX2 DATA DIFFERENTIAL-TO-TTL CONVERTER/BUFFER RX3 DATA RX2 DATA 32K X 8 FROM HOST MICROPROCESSOR 6 6 ADDRESS HOST DATA BUS RX1 DA
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Base Radio Controller Functional Block Diagram Model TLN3425 (Includes Front Panel Board) HOST MICROPROCESSOR / HOST ASIC 16.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Base Radio Controller Functional Block Diagram Model TLN3425 (Includes Front Panel Board) DSP ASIC INTERFACE CIRCUITRY TRANSMIT SYNCHRONOUS SERIAL INTERFACE (TXSSI) 40 MHZ TIMING CIRCUITRY RX1 DATA 3 ADDRESS SCI DIFFERENTIAL DATA FROM RECEIVER MODULE #1 VIA BACKPLANE 32K X 8 DATA RAM 3 3 SERIAL BUS 32K X 8 TRANSMIT DIGITAL SIGNAL PROCESSOR SSI RX1 SERIAL RAM 32K X 8 SERIAL BUS TO/FROM RECEIVER MODULE #1 SERIAL BUS BUFFERS 6 6 RX1
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Base Radio Controller 2 QUAD Channel Base Radio Controller Functional Block Diagram LED CONTROL LINES HOST LATCH P0 OUT 12 3.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Base Radio Controller QUAD Channel Base Radio Controller Functional Block Diagram 2 SERIAL MANAGEMENT CONTROLLER (SMC2) SCC1 ETHERNET SERIAL INTERFACE 8 2 EIA-232 BUS RECEIVERS/ DRIVERS STATUS PORT (9 PIN D CONNECTOR ON BRC FRONT PANEL) RX1 SERIAL DATA DIFFERENTIAL TO SINGLE END RX2 SERIAL DATA DIFFERENTIAL TO SINGLE END RX3 SERIAL DATA DIFFERENTIAL TO SINGLE END RX4 SERIAL DATA DIFFERENTIAL TO SINGLE END ETHERNET INTERFACE CLSN ETHE
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 3 Exciter Overview This section provides technical information for the Exciter (EX). Table 3-1 describes covered topics. Table 3-1 Chapter Topics Chapter Page Description 800 MHz Exciter Ð TLN3337; 900 MHz Exciter Ð CLN1357; 1500 MHz Exciter Ð TLN3428 3-2 Describes the functions and characteristics of the Exciter module for the single channel Base Radio (BR).
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800 MHz Exciter – TLN3337; 900 MHz Exciter – CLN1357; 1500 MHz Exciter – TLN3428 800 MHz Exciter – TLN3337; 900 MHz Exciter – CLN1357; 1500 MHz Exciter – TLN3428 Exciter Overview The Exciter, together with the Power AmpliÞer (PA), provides the transmitter functions for the Base Radio. The Exciter module consists of a printed circuit board, a slide-in housing, and associated hardware.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 800 MHz Exciter – TLN3337; 900 MHz Exciter – CLN1357; 1500 MHz Exciter – TLN3428 Figure:3-2 1500 MHz Exciter, version TLN3428 (with top removed) 1.5GHZ-B859 Theory of Operation Table 3-3 lists and describes basic Exciter circuitry. Figures 3-4 and 3-5 show the functional block diagram of the Single Carrier Exciter. Figures 3-6 show the functional block diagram of the QUAD Carrier Exciter.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800 MHz Exciter – TLN3337; 900 MHz Exciter – CLN1357; 1500 MHz Exciter – TLN3428 Table 3-3 Exciter Circuitry Circuit Tranlin IC Description Performs the following functions: ¥ up-converts the baseband data to the Þrst IF ¥ down-converts the IF feedback signal to baseband ¥ uses a baseband Cartesian feedback loop system, which is necessary to obtain linearity from the transmitter and avoid splattering power into adjacent channels ¥ performs traini
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 800 MHz Exciter – TLN3337; 900 MHz Exciter – CLN1357; 1500 MHz Exciter – TLN3428 The BRC monitors the regulated voltages, the external wattmeter (optional), the PLL circuit, and other internal signals. Tranlin IC Circuitry The Tranlin IC is a main interface between the Exciter and BRC. The Digital Signal Processors (DSP) of the BRC send Digitized signals (baseband data) to the Exciter via the DSP data bus.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 800 MHz Exciter – TLN3337; 900 MHz Exciter – CLN1357; 1500 MHz Exciter – TLN3428 The charge pump circuit consists of Þve transistors and its associated biasing components. This circuit generates the correction signal and causes it to move up or down in response to the phase detector output pulses. The correction signal passes through the low-pass loop Þlter to the 970 MHz Voltage Controlled Oscillator (VCO) circuit (1025 MHz VCO for 900 MHz BR).
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios QUAD Channel 800 MHz Exciter QUAD Channel 800 MHz Exciter Exciter Overview The Exciter and the Power AmpliÞer (PA) provide the transmitter functions of the QUAD Channel Base Radio. The Exciter module consists of a printed circuit board, a slide in housing, and associated hardware. The BRC shares the printed circuit board and housing. The Exciter connects to the Base Radio backplane through a 168-pin connector and two blindmate RF connectors.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 QUAD Channel 800 MHz Exciter Theory of Operation Table 3-4 describes the basic circuitry of the Exciter. Figures 3-4 and 3-5 show the functional block diagram of the Single Carrier Exciter. Figures 3-6 show the QUAD Carrier ExciterÕs functional block diagram.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios QUAD Channel 800 MHz Exciter ❐ free form information (scratch pad) 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 ampliÞer bias and synthesizer signals.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 QUAD Channel 800 MHz Exciter signal passes through the low-pass loop Þlter. The signal then enters the 970 MHz Voltage Controlled Oscillator (VCO) circuit. 970 MHz Voltage Controlled Oscillator (VCO) The 970 MHz VCO generates the second injection frequency for the LNODCT IC. For proper operation, the VCO requires a very low-noise, DC supply voltage. An ultra low-pass Þlter prepares the necessary low-noise voltage and drives the oscillator.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Exciter 3 c Exciter 800 MHz Functional Block Diagram 970 MHZ (1025 MHZ) VCO CIRCUITRY EXCITER IC CIRCUITRY TRANLIN IC CIRCUITRY RF FEEDBACK FROM PA MODULE +10 V SUPER FILTER DIFFERENTIAL TISIC DATA & CLOCK IFOUT DATA & CLOCK FROM BRC MODULE BPF TRANLIN IC EXCITER IC IFIN 237 MHZ (180.6 MHZ) VCO CIRCUITRY CONTROL VOLTAGE (+2.5 TO +7.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Exciter Exciter Functional Block Diagram Model TLN3428 RF FEEDBACK FROM PA MODULE TRANLIN IC CIRCUITRY RESET RESET FROM BRC MODULE DSP DATA AND CLOCK POWER CONTROL BAND-PASS FILTER IFOUT DSP DATA & CLOCK TRANLIN IC (U3600) FROM BRC MODULE SPI BUS (DATA & CLOCK) EXCITER IC CIRCUITRY IFIN SPI BUS TO/FROM BRC MODULE RF FEEDBACK FOR AGC DIFF AMP 700 MHZ VCO CIRCUITRY EXCITER IC (U3500) +10 V SUPER FILTER (Q3300) +10 V SUPER FILTER (Q
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Exciter 3 Exciter 800 MHz QUAD ChannelFunctional Block 970 MHZ (1025 MHZ) VCO CIRCUITRY EXCITER IC CIRCUITRY TRANLIN IC CIRCUITRY RF FEEDBACK FROM PA MODULE +10 V SUPER FILTER DIFFERENTIAL TISIC DATA & CLOCK IFOUT DATA & CLOCK FROM BRC MODULE BPF TRANLIN IC EXCITER IC IFIN 237 MHZ (180.6 MHZ) VCO CIRCUITRY CONTROL VOLTAGE (+2.5 TO +7.
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y 4 Power Amplifier Overview This section provides technical information for the Power AmpliÞer (PA). Table 4-1 describes covered topics. Table 4-1 Chapter Topics Chapter Page Description 40W, 800 MHz Ð TLF2020 (TTF1580); 70W, 800 MHz Ð TLN3335 (CTF1040); 60W, 900 MHz Ð CLN1355 (CLF1300); 40W, 1500 MHz Ð TLN3426 (TLN3426); 800 MHz QUAD Ð CLF1400 (CLF1400) 4-2 Describes the functions and characteristics of the Base Radio Power AmpliÞer (PA) module for the single and QUAD Channel Base Radio (BR).
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y 40W, 800 MHz Ð TLF2020 (TTF1580); 70W, 800 MHz Ð TLN3335 (CTF1040); 60W, 900 MHz Ð CLN1355 (CLF1300); 40W, 1500 MHz Ð TLN3426 (TLN3426); 800 MHz QUAD Ð CLF1400 (CLF1400) 40W, 800 MHz Ð TLF2020 (TTF1580); 70W, 800 MHz Ð TLN3335 (CTF1040); 60W, 900 MHz Ð CLN1355 (CLF1300); 40W, 1500 MHz Ð TLN3426 (TLN3426); 800 MHz QUAD Ð CLF1400 (CLF1400) PA Overview The Power Amplifier (PA), together with the Exciter, provides transmitter functions for the QUAD Channel Base Radio.
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y 40W, 800 MHz Ð TLF2020 (TTF1580); 70W, 800 MHz Ð TLN3335 (CTF1040); 60W, 900 MHz Ð CLN1355 (CLF1300); 40W, 1500 MHz Ð TLN3426 (TLN3426); 800 MHz QUAD Ð CLF1400 (CLF1400) NOTE: 70W PA shown. 40W PA is similar.
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y 40W, 800 MHz Ð TLF2020 (TTF1580); 70W, 800 MHz Ð TLN3335 (CTF1040); 60W, 900 MHz Ð CLN1355 (CLF1300); 40W, 1500 MHz Ð TLN3426 (TLN3426); 800 MHz QUAD Ð CLF1400 (CLF1400) Figure:4-2 4-4 60W, 900 MHz PA Ð CLN1355 (with cover removed) 68P81099E10 D 11/9/200 0
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y 40W, 800 MHz Ð TLF2020 (TTF1580); 70W, 800 MHz Ð TLN3335 (CTF1040); 60W, 900 MHz Ð CLN1355 (CLF1300); 40W, 1500 MHz Ð TLN3426 (TLN3426); 800 MHz QUAD Ð CLF1400 (CLF1400) 1.
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y 40W, 800 MHz Ð TLF2020 (TTF1580); 70W, 800 MHz Ð TLN3335 (CTF1040); 60W, 900 MHz Ð CLN1355 (CLF1300); 40W, 1500 MHz Ð TLN3426 (TLN3426); 800 MHz QUAD Ð CLF1400 (CLF1400) Figure:4-4 4-6 QUAD Channel PA (with cover removed) 68P81099E10 D 11/9/200 0
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y Theory of Operation Theory of Operation Table 4-3 describes the basic functions of the PA circuitry. Figures 4-5, 4-6 and 4-9 show the functional block diagrams of 40W, 800 MHz PA; 70W, 800 MHz PA and the 800MHz, Quad PA, respectively. Figures 4-7 shows the functional block diagram of the 60W, 900 MHz PA. Figures 4-8 shows a functional block diagram of the 40W, 1500 MHz PA.
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y Theory of Operation Power Amplifier Circuitry (Continued) Table 4-3 Circuit Linear Final Module (LFM) Description ¥ Each module contains two Class AB amplifiers in parallel. Each module amplifies one of three RF signals (~ 8 W average power) from the LDM (via the Splitter/DC board). Three LFMs provide a sum RF output of approximately 48 W average power. (40W, 800MHz) ¥ Each module contains two Class AB amplifiers in parallel.
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y Theory of Operation ¥ Reflected power ¥ PA temperature sense DC/Metering Board (Quad only) The DC/Metering Board in the Quad Radio serves the same function as does other radios. However, its circuitry is modified to be compatible with the Quad Station. As such, the logic circuitry is 3.3V.
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y Theory of Operation Interconnect Board (800 MHz and 800MHz Quad only) 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.
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y Theory of Operation 1500 MHz 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 dual power amplifiers that amplify the RF signals to an output equal to approximately 28 Watts average power. The amplified signal is then sent directly to the RF Combiner circuit for final distribution. The current drain of the Power Amplifiers is monitored by the A/D converter on the DC/ Metering board.
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y Theory of Operation 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 The combined LFM output is applied to this module. The RF signal is first passed through a directional coupler which derives a signal sample of the LFM RF power output.
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y Theory of Operation 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 121û F (85û C). Fan Module The PA contains a fan assembly to maintain normal operating temperature through the use of a cool air intake.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Power Amplifier 4 40W, 800 MHz Power Amplifier – TLF2020 (TTF1580) 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 1 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
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Power Amplifier 70W, 800 MHz Power Amplifier – TLN3335 (CTF1040) 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 1 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/FR
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Power Amplifier 60W, 900 MHz Power Amplifier – CLN1355 (CLF1300) Functional Block Diagram LINEAR DRIVER MODULE STAGE 1 RF INPUT CLASS A RF SPLITTER/ DC DISTRIBUTION BOARD STAGE 2 STAGE 3 CLASS AB CLASS AB LINEAR FINAL MODULE 50 OHM LOAD ADDRESS DECODE, MEMORY, & A/D CONVERTER CIRCUITRY 50 OHM LOAD CLK/DATA CHIP SELECT DECODE CIRCUITRY CHIP SELECT MEMORY 50 OHM LOAD SPI BUS TO/FROM BRC CHIP SELECT LINEAR FINAL MODULE 50 OHM LOAD A
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Power Amplifier 40W, 1500 MHz Power Amplifier – TLN3426 Functional Block Diagram Power Amplifier Functional Block Diagram Model TLN3426 ADDRESS DECODE, MEMORY, & A/D CONVERTER CIRCUITRY LINEAR DRIVER MODULE TLG4020 STAGE 1 RF INPUT STAGE 2 STAGE 3 CLASS AB CLASS AB CHIP SELECT (Q5433) 50 OHM LOAD CHIP SELECT DECODE CIRCUITRY (U5000) CLASS AB 50 OHM LOAD MEMORY (U5004) (Q5433) 50 OHM LOAD SPI BUS TO/FROM BRC LINEAR FINAL MODULE TL
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Power Amplifier 4 800 MHz QUAD Carrier Power Amplifier 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 1 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
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 5 DC Power Supply Overview This section provides technical information for the DC Power Supply (PS). Table 5-1 describes covered topics. Table 5-1 Chapter Topics Chapter Page Description DC Power Supply for Single Channel Base Radios 5-22 Describes the functions and characteristics of the DC Power Supply (PS) module for the single channel Base Radio (BR).
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 DC Power Supply for Single Channel Base Radios DC Power Supply for Single Channel Base Radios DC Power Supply Overview The DC Power Supply provides DC operating voltages to QUAD Channel Base Radio FRUs. The power supply accepts input voltage sources from 41Vdc to 60Vdc. Input sources may be either positively or negatively grounded. On initial startup, the supply requires a nominal 43 Vdc.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios DC Power Supply for Single Channel Base Radios Figure:5-1 DC Power Supply Table 5-4 DC Power Supply Specifications Value or Range Description Operating Temperature 0¡ to +40¡ C (no derating) +41¡ to +60¡ C (derating) Input Voltage 41 to 60 Vdc Input Polarity Positive (+) ground system Startup Voltage 43 Vdc (minimum) Input Current 15.6 A (maximum) @ 41 Vdc Steady State Output Voltages 28.6 Vdc +5% 14.2 Vdc +5% 5.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 DC Power Supply for Single Channel Base Radios Table 5-4 DC Power Supply Specifications (Continued) Description Output Ripple Value or Range All outputs 50mV p-p (measured with 20 MHz BW oscilloscope at 25¡C) High Frequency individual harmonic voltage limits (10kHz to 100MHz) are: Short Circuit Current 28.6 Vdc 1.5 mV p-p 14.2 Vdc 3.0 mV p-p 5.1 Vdc 5.0 mV p-p 0.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios DC Power Supply for QUAD Channel Base Radios DC Power Supply for QUAD Channel Base Radios QUAD Channel Power Supply Overview The QUAD Channel DC Power Supply provides DC operating voltages to QUAD Channel Base Radio FRUs. The power supply accepts input voltage sources from 41Vdc to 60Vdc. Input sources may be either positively or negatively grounded. On initial startup, the supply requires a nominal 43 Vdc.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 DC Power Supply for QUAD Channel Base Radios Figure:5-2 Quad Carrier Power Supply Table 5-7 DC Power Supply Specifications Value or Range Description Operating Temperature 0¡ to +40¡ C (no derating) +41¡ to +60¡ C (derating) Input Voltage 41 to 60 Vdc Input Polarity Positive (+) ground system Startup Voltage 43 Vdc (minimum) Input Current 18.0 A (maximum) @ 41 Vdc Steady State Output Voltages 28.6 Vdc +5% 14.2 Vdc +5% 3.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios DC Power Supply for QUAD Channel Base Radios Table 5-7 DC Power Supply Specifications (Continued) Description Output Ripple Value or Range All outputs 150mV p-p (measured with 20 MHz BW oscilloscope at 25¡C) High Frequency individual harmonic voltage limits (10kHz to 100MHz) are: Short Circuit Current 28.6 Vdc 1.5 mV p-p 14.2 Vdc 3.0 mV p-p 3.3 Vdc 5.0 mV p-p 0.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios DC Power Supply 5 Single Channel DC Power Supply MAIN INVERTER CIRCUITRY MAIN ISOLATION TRANSFORMER MOD FAIL SOFTSTART CIRCUITRY +28 V BULK TO DIAGNOSTICS CIRCUITRY SHUTDOWN A PULSE WIDTH MODULATOR 3 4 POWER FET SWITCHES TRANSISTOR DRIVERS P/O BACKPLANE CONNECTOR +28.6 VDC TO STATION MODULES VIA BACKPLANE +28.6 VDC FILTERING CIRCUITRY 14 15 VCC 267 KHZ B 133 KHZ 133 KHZ +28.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 DC Power Supply DC Power Supply REF DIAGNOSTICS CIRCUITRY MODULE FAIL (RED) REF B INPUT GOOD (GREEN) MOD FAIL BULK DETECT FROM STARTUP INVERTER CIRCUITRY INPUT FAIL REF HEATSINK STATUS DETECT HEATSINK DIAG REF VBAT DIAG HI-TEMP DETECT (FOR AC ONLY) FROM BATTERY CHARGER/REVERT CIRCUITRY A REF BAT TEMP SPI BUS A/D CONVERTER J300 REF T° COOLING FAN 3 SPI BUS TO/FROM STATION CONTROL MODULE +5.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 DC Power Supply QUAD Channel Power Supply MAIN INVERTER CIRCUITRY MAIN ISOLATION TRANSFORMER MOD FAIL SOFTSTART CIRCUITRY +28 V BULK TO DIAGNOSTICS CIRCUITRY SHUTDOWN A PULSE WIDTH MODULATOR 3 4 POWER FET SWITCHES TRANSISTOR DRIVERS P/O BACKPLANE CONNECTOR +28.6 VDC TO STATION MODULES VIA BACKPLANE +28.6 VDC FILTERING CIRCUITRY 14 15 VCC 267 KHZ B 133 KHZ 133 KHZ +28.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 DC Power Supply QUAD Channel DC Power Supply REF DIAGNOSTICS CIRCUITRY MODULE FAIL (RED) REF B INPUT GOOD (GREEN) MOD FAIL ULK DETECT OM STARTUP INVERTER CIRCUITRY INPUT FAIL REF HEATSINK STATUS DETECT HEATSINK DIAG REF VBAT DIAG HI-TEMP DETECT (FOR AC ONLY) FROM BATTERY CHARGER/REVERT CIRCUITRY A REF BAT TEMP SPI BUS A/D CONVERTER J300 REF T° COOLING FAN 3 SPI BUS TO/FROM STATION CONTROL MODULE +3.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 6 AC Power Supply AC Power Supply Overview The AC Power Supply provides DC operating voltages for the Base Radio FRUs. The AC Power Supply accepts an AC input (90 to 280 Vac @ 47 to 63 Hz) to generate three output voltages: 28.6 Vdc, 14.2 Vdc and 5.1 Vdc with reference to output ground. The AC Power Supply automatically adjusts to the AC input ranges and supplies a steady output.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Figure:6-1 Table 6-2 AC Power Supply (front view) AC Power Supply Specifications Description Operating Temperature Value or Range -30¡ to +45¡ C (no derating) -30¡ to +60¡ C (derating) Input Voltage 90 to 280 Vac Input Frequency Range 47 to 63 Hz Input Current 8.5 A (maximum) Steady State Output Voltages 28.6 Vdc +5% 14.2 Vdc +5% 5.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Table 6-2 AC Power Supply Specifications Description Value or Range Output Ripple All outputs 50 mV p-p (measured with 20 MHz BW oscilloscope at 25¡C) High Frequency individual harmonic voltage limits (10 kHz to 100 MHz) are: Short Circuit Current 28.6 Vdc 1.5 mV p-p 14.2 Vdc 3 mV p-p 5.1 Vdc 5 mV p-p 0.5 A average (maximum) * Includes 50 W for the battery charger.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios AC Power Supply 6 6 AC Power Supply MAIN ISOLATION TRANSFORMER MAIN INVERTER CIRCUITRY 133 KHZ 133 KHZ C SOFTSTART CIRCUITRY SHUTDOWN A MOD FAIL PULSE WIDTH MODULATOR POWER FET SWITCHES TRANSISTOR DRIVERS B D +28 V BULK TO DIAGNOSTICS CIRCUITRY VCC 267 KHZ VCC FILTERING CIRCUITRY INPUT FILTER BOARD +28.6 VDC +28.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 AC Power Supply AC Power Supply BATTERY CHARGING / REVERT CIRCUITRY SCR APPROX.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio 7 Receiver Overview This section provides technical information for the Receiver (RX). Table 7-1 describes covered topics. Table 7-1 Chapter Topics Chapter Page Description 800 MHz 3X Receiver Ð CLN1283; 900 MHz 3X Receiver Ð CLN1356 7-40 Describes the functions and characteristics of the Receiver (RX) module for the 800 MHz and 900 MHz single channel Base Radio (BR).
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800/900/1500 MHz Base Radio EBTS System Manual - Vol 2 800 MHz 3X Receiver – CLN1283; 900 MHz 3X Receiver – CLN1356 800 MHz 3X Receiver – CLN1283; 900 MHz 3X Receiver – CLN1356 Overview The 3X Receiver provides the receiver functions for the Base Radio. It consists of a receiver board, a slide-in housing, and associated hardware. The 3X Receiver incorporates one to three diversity branches on a single module. Figure 7-1 shows a top view of the Receiver with the cover removed.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio 800 MHz 3X Receiver – CLN1283; 900 MHz 3X Receiver – CLN1356 receiver slot, the front panel of a 3X receiver reads: INSERT ONLY IN SLOT RX2 WITH BACKPLANE 0183625X 3X RECEIVER . The two remaining receiver slots are covered with blank panels. A summary of the Receiver FRUs available for the Base Radio is provided in the chart below.
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800/900/1500 MHz Base Radio EBTS System Manual - Vol 2 800 MHz 3X Receiver – CLN1283; 900 MHz 3X Receiver – CLN1356 Diversity Configuration There is a new software parameter used for diversity purposes with the CLN1283 and CLN1356 3X Receivers. The parameter is the rx_fru_config parameter. The diversity issues to consider are described in the following paragraph. This parameter can be accessed through the MMI commands using the Motorola password. ROMs prior to version R06.06.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio 800 MHz 3X Receiver – CLN1283; 900 MHz 3X Receiver – CLN1356 To view the rx_fru_config parameter, use the MMI command get rx_fru_config . The conÞguration of each repeater can be changed in the Þeld to match the number of receivers connected to antennas. To change the rx_fru_conÞg parameter, use the command set rx_fru_config yyy , where yyy is the active receiver (yyy is 1 for one branch, 12 for two branch, and 123 for three branch diversity.
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800/900/1500 MHz Base Radio EBTS System Manual - Vol 2 800 MHz 3X Receiver – CLN1283; 900 MHz 3X Receiver – CLN1356 Modifying Base Radios from Two Branch to Three Branch Diversity 1. Remove the SMA male load from the RX3 connector of the Base Radio you wish to convert from two branch diversity to three branch diversity. 2. Connect the Receive Antenna #3 RF cable to the RX3 connector on the Base Radio. 3.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio 800 MHz 3X Receiver – CLN1283; 900 MHz 3X Receiver – CLN1356 Correction pulses are generated by the PLL IC, depending on whether the feedback signal is higher or lower in frequency than the 2.1 MHz reference. The width of these pulses is dependent on the amount of difference between the 2.1 MHz reference and the VCO feedback. The up/down pulses are fed to a charge pump circuit that outputs a DC voltage proportional to the pulse widths.
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800/900/1500 MHz Base Radio EBTS System Manual - Vol 2 800 MHz 3X Receiver – CLN1283; 900 MHz 3X Receiver – CLN1356 Address Decode Circuitry The address decode circuitry enables the BRC to use the SPI bus to select a speciÞc device on a speciÞc Receiver for control or data communication purposes. If the board select circuitry decodes address lines A2 through A5 as the Receiver address, it enables the chip select circuitry.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio 1500 MHz Receiver – TLN3427 1500 MHz Receiver – TLN3427 Overview The Receiver module provides the receiver functions for the Repeater. It consists of a receiver board, a slide-in module housing, and associated hardware. The receiver module assembly interconnects with the backplane through a 96-pin connector and a blindmate RF connector. Two captive panel fasteners located on the front of the module hold it in the chassis.
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800/900/1500 MHz Base Radio EBTS System Manual - Vol 2 1500 MHz Receiver – TLN3427 Table 7-8 Receiver Circuitry and Functions Receiver Circuit This Circuit . . . Frequency Synthesizer Circuitry consists of a phase-locked loop and VCO. It generates the 1st LO injection signal. Receiver Front-End Circuitry provides Þltering, ampliÞcation, and the 1st down-conversion of the receive RF signal. Digital step attenuators at the 1st IF are included in this block.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio 1500 MHz Receiver – TLN3427 The frequency doubler is used to double the frequency of the RF signal from the VCO to produce the 1st LO injection signal. This frequency-doubled signal is sent to the injection ampliÞer to provide the 1st LO injection signal to the mixer in the receiver front end circuitry. Receiver Front End Circuitry The station receive RF signal enters the receiver module through the RF-type connector located on the receiver board.
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800/900/1500 MHz Base Radio EBTS System Manual - Vol 2 1500 MHz Receiver – TLN3427 Memory Circuitry The memory circuitry consists of an EEPROM located on the receiver module. The BRC module performs all memory read and write operations via the SPI bus. Information stored in this memory device includes the kit number, revision number, module speciÞc scaling and correction factors, and free form module information (scratch pad).
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio 800 MHz QUAD Channel Receiver – CLN1283; 800 MHz QUAD Channel Receiver – CLN1283; Overview The QUAD receiver provides receiver functions for the QUAD Channel Base Radio. The QUAD receiver consists of a receiver board, a slide-in housing, and associated hardware. A a single module of the QUAD receiver incorporates one to three diversity branches. Figure 7-3 shows a top view of the Receiver with the cover removed.
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800/900/1500 MHz Base Radio EBTS System Manual - Vol 2 800 MHz QUAD Channel Receiver – CLN1283; parameter, use the command (reference software commands). In this command, yyy is the active receiver. (Note: yyy is 1 for one branch, 12 for two branch, and 123 for three branch diversity.) For the iDEN system to work optimally, the rx_fru_config parameter must match the number of receivers connected to antennas. CAUTION Improperly setting the rx_fru_config parameter will cause serious system degradation.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio 800 MHz QUAD Channel Receiver – CLN1283; Modifying Base Radios from Two Branch to Three Branch Diversity 1. Remove the SMA male load from the RX3 connector of the Base Radio that you wish to convert from two-branch diversity to three-branch diversity. 2. Connect the Receive Antenna #3 RF cable to the RX3 connector on the Base Radio. 3. Verify that the rx_fru_config parameter is set properly, according to the Diversity Uses and Cautions paragraph.
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800/900/1500 MHz Base Radio EBTS System Manual - Vol 2 800 MHz QUAD Channel Receiver – CLN1283; The PLL ICC generates correction pulses, depending on whether the feedback signal is higher or lower in frequency than the 2.1 MHz reference. The width of these pulses depends on the amount of difference between the 2.1 MHz reference and the VCO feedback. The up/down pulses enter a charge pump circuit. The charge pump outputs a DC voltage proportional to the pulse widths.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radio 800 MHz QUAD Channel Receiver – CLN1283; Address Decode Circuitry Address decode circuitry enables the BRC to use the SPI bus to select a speciÞc device on a speciÞc Receiver for control or data communication purposes. If board-select circuitry decodes address lines A2 through A5 as the Receiver address, it enables the chip select circuitry. The chip select circuitry then decodes address lines A0 and A1.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Receiver 7 3X Receiver Functional Block Diagram RECEIVER #3 FRONT END CIRCUITRY RECEIVER #2 FRONT END CIRCUITRY RECEIVER #1 FRONT END CIRCUITRY 1ST MIXER RECEIVE RF FROM RX ANTENNA (MULTICOUPLER) LO-PASS FILTER HI-PASS FILTER 4-POLE BANDPASS FILTER PREAMPLIFIER CIRCUITRY 4-POLE BANDPASS FILTER SMA-TYPE CONNECTOR DIGITAL ATTENUATOR CIRCUITRY AGC FROM CONTROL MODULE 3 WAY SPLITTER TO RECEIVER #2 MIXER TO RECEIVER #3 MIXER REGULATORY CIRCUIT
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Receiver 7 Receiver Functional Block Diagram Model TLN3427 RECEIVER FRONT END CIRCUITRY 1ST MIXER (CR2070) LOW-PASS FILTER (L2000, C2000, C2001, C2002) RECEIVE RF FROM RX ANTENNA (MULTICOUPLER) PRESELECTOR FILTER (FL2000) PREAMPLIFIER CIRCUITRY (Q2030, Q2031) BUFFER AMP (Q2100) IMAGE FILTER CIRCUITRY (FL2070) 1ST LO INJ AMP CIRCUITRY (Q2302, Q2303, FL2300) ADDRESS DECODE, MEMORY, & A/D CONVERTER CIRCUITRY CHIP SELECT DECODE CIRCUITRY (U2804
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Receiver 7 QUAD Receiver Functional Block Diagram RECEIVER #3 FRONT END CIRCUITRY RECEIVER #2 FRONT END CIRCUITRY RECEIVER #1 FRONT END CIRCUITRY 1ST MIXER RECEIVE RF FROM RX ANTENNA (MULTICOUPLER) LO-PASS FILTER HI-PASS FILTER ! D E G N A CH 4-POLE BANDPASS FILTER PREAMPLIFIER CIRCUITRY SMA-TYPE CONNECTOR DIGITAL ATTENUATOR CIRCUITRY AGC FROM CONTROL MODULE 3 WAY SPLITTER TO RECEIVER #2 MIXER BE 4-POLE BANDPASS FILTER TO RECEIVER #3 MI
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 8 Troubleshooting Single Channel Base Radios Overview This chapter isolates single channel Base Radio failures to the FRU level. The chapter contains procedures for: chapter contains procedures for: ❐ Troubleshooting ❐ VeriÞcation ❐ Station Operation The Base Radio maintenance philosophy is repair by replacing defective FRUs with new FRUs. This maintenance method limits down-time, and quickly restores the Base Radio to normal operation.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Table 8-1 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 Me
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 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 1 is a quick, non-intrusive test performed during a routine site visit.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Reported/Suspected Problem Use Procedure 2 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 8-2 shows the Procedure 2 Troubleshooting Flowchart.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Base Radio/Base Radio FRU Replacement Procedures Base Radio/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 veriÞcation instructions.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Base Radio/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.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Base Radio/Base Radio FRU Replacement Procedures 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 given that the BR has been off-line for a period not less than that stipulated by the ÒReplacement BRC Accept TimerÓ (default is 3 minutes).
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Base Radio/Base Radio FRU Replacement Procedures Power Amplifier (PA) Fan FRU Replacement Perform the following steps to replace the Power AmpliÞer (PA) fans. 1. Remove the Power AmpliÞer 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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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures Station Verification Procedures Perform the Station VeriÞcation Procedures whenever you replace a FRU. The procedures verify transmit and receive operations. Each procedure also contains the equipment set-up. Replacement FRU Verification All module speciÞc information is programmed in the factory prior to shipment. Base Radio speciÞc information (e.g.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 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 ÒRxx.xx.xxÓ, then all revision numbers are present and no further action is required.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 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 cable from the connector labeled PA OUT. This connector is located on the backplane of the Base Radio. 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.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 1. Apply power to the Base Radio by setting the switch to the 1 position. The following message displays on the service computer during power-up. Base Radio fi r mwa re rev i s i on R X X .X X .X X Copyright  1998 Motorola, Inc. All rights reserved. U n a u th o r i ze d a ccess prohi bi ted E n te r l o g i n p a s sword: 2. Enter the proper password.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 4. At the BRC> prompt, type: set tx_power 40 This command sets the transmitter output to 40 Watts. B RC > set tx_power 40 s e tti ng transmi tter power to 40 watts T X LIN ATTE N UATION : 5.000000 TAR GE T P OW E R : 40.00 watts [46.02 dB m] AC TUA L P OW E R : 37.77 watts [45.07 dB m] P OW E R W IN D OW : 38.20-> 41.89 watts [45.82 -> 46.22 dBm ] T X LIN LE V E L R E GIS TE R R E D U C E D 59 S TE P S [-2.30 d B] .
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 6. At the BRC> prompt, type: get ref_pwr This command returns the current value of reßected power from the RF Power AmpliÞer. B R C > g e t r e f_ pwr R EF L E C T E D P OW E R i s 0.27 watts [24.28 dB m] 7. At the BRC> prompt, type: get vswr This command calculates the current Voltage Standing Wave Ratio (VSWR) from the RF Power AmpliÞer. BRC> get vswr VSWR is 1.17:1 8.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures EBTS071 032394JNM Figure:8-3 Transmitted Signal Spectrum (800 MHz BR) Transmitter Verification Procedure (70W, 800 MHz Power Amplifiers – CTF1040) This procedure provides commands and responses to verify proper operation of the transmit path for 800 MHz Base Radios using a 70 Watt Power AmpliÞer. 1. Apply power to the Base Radio by setting the switch to the 1 position.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 2. Enter the proper password. After entering the correct password, the BRC> prompt is displayed on the service computer. The default password is motorola NOTE Motorola recommends that you change the default password once proper operation of the equipment is veriÞed. 3. At the BRC> prompt, type: dekey This command veriÞes that there is no RF power being transmitted.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 4. At the BRC> prompt, type: set tx_power 70 This command sets the transmitter output to 70 Watts. B RC > set tx_power 70 s e tti ng transmi tter power to 70 watts T X LIN ATTE N UATION : 5.000000 TAR GE T P OW E R : 70.00 watts [48.45 dB m] AC TUA L P OW E R : 56.70 watts [47.54 dB m] P OW E R W IN D OW : 66.85 -> 73.30 watts [48.25 -> 48.65 dBm ] T X LIN LE V E L R E GIS TE R R E D U C E D 85 S TE P S [-3.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 6. At the BRC> prompt, type: get ref_pwr This command returns the current value of reßected power from the RF Power AmpliÞer. B R C > g e t r e f_ pwr R EF L E C T E D P OW E R i s 2.10 watts [33.22 dB m] 7. At the BRC> prompt, type: get vswr This command calculates the current Voltage Standing Wave Ratio (VSWR) from the RF Power AmpliÞer. BRC> get vswr VSWR is 1.42:1 8.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures EBTS071 032394JNM Figure:8-4 Transmitted Signal Spectrum (800 MHz BR) Transmitter Verification Procedure (60W, 900 MHz Power Amplifier – CLN1355) This procedure provides commands and responses to verify proper operation of the transmit path for 900 MHz Base Radios using 60 Watt Power AmpliÞer, CLN1355 (kit no. CTF1300). 1. Apply power to the Base Radio by setting the switch to the 1 position.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 2. Enter the proper password. After entering the correct password, the BRC> prompt is displayed on the service computer. The default password is motorola NOTE Motorola recommends that you change the default password once proper operation of the equipment is veriÞed. 3. At the BRC> prompt, type: dekey This command veriÞes that there is no RF power being transmitted.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 4. At the BRC> prompt, type: set tx_power 60 This command sets the transmitter output to 60 Watts. B RC > set tx_power 60 s e tti ng transmi tter power to 60 watts T X LIN ATTE N UATION : 5.000000 TAR GE T P OW E R : 60.00 watts [47.78 dB m] AC TUA L P OW E R : 56.70 watts [47.54 dB m] P OW E R W IN D OW : 57.30 -> 62.85 watts [47.58 -> 47.98 dBm ] T X LIN LE V E L R E GIS TE R R E D U C E D 85 S TE P S [-3.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 6. At the BRC> prompt, type: get ref_pwr This command returns the current value of reßected power from the RF Power AmpliÞer. B R C > g e t r e f_ pwr R EF L E C T E D P OW E R i s 1.67 watts [32.22 dB m] 7. At the BRC> prompt, type: get vswr This command calculates the current Voltage Standing Wave Ratio (VSWR) from the RF Power AmpliÞer. BRC> get vswr VSWR is 1.42:1 8.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 937.5000 EBTS418 EBTS071 101797JNM 032394JNM Figure:8-5 Transmitted Signal Spectrum (900 MHz BR) Transmitter Verification Procedure (40W, 1500 MHz Power Amplifier – TLN3426) This procedure provides commands and responses to verify proper operation of the transmit path for 1500 MHz Base Radios using a 40 Watt Power AmpliÞer. 1. Apply power to the Base Radio by setting the switch to the 1 position.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 2. Enter the proper password. After entering the correct password, the BRC> prompt is displayed on the service computer. The default password is motorola NOTE Motorola recommends that you change the default password once proper operation of the equipment is veriÞed. 3. At the BRC> prompt, type: dekey This command veriÞes that there is no RF power being transmitted.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 4. At the BRC> prompt, type: set tx_power 40 This command sets the transmitter output to 40 Watts. B RC > set tx_power 40 s e tti ng transmi tter power to 40 watts T X LIN ATTE N UATION : 5.000000 TAR GE T P OW E R : 40.00 watts [46.02 dB m] AC TUA L P OW E R : 28.38 watts [44.53 dB m] P OW E R W IN D OW : 38.20-> 41.89 watts [45.82 -> 46.22 dBm ] T X LIN LE V E L R E GIS TE R R E D U C E D 59 S TE P S [-2.30 d B] .
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 6. At the BRC> prompt, type: get ref_pwr This command returns the current value of reßected power from the RF Power AmpliÞer. B R C > g e t r e f_ pwr R EF L E C T E D P OW E R i s 0.27 watts [24.28 dB m] 7. At the BRC> prompt, type: get vswr This command calculates the current Voltage Standing Wave Ratio (VSWR) from the RF Power AmpliÞer. BRC> get vswr VSWR is 1.17:1 8.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures Figure:8-6 6 8 P 8 1 0 9 5 E02- D 4/1/2000 Transmitted Signal Spectrum (1500 MHz BR) 8-27
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 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.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 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 cable from the connector labeled RX1 (or the connector corresponding to the receiver under test). This connector is located on the backplane of the Base Radio. 5. Connect a test cable to the RX 1 connector. 6.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 13. Restore power to the Base Radio by setting the Power Supply rocker switch to the ON (1) position. The following message displays on the service computer during power-up. Base Radio fi r mwa re rev i s i on R X X .X X .X X Copyright  1998 Motorola, Inc. All rights reserved. U n a u th o r i ze d a ccess prohi bi ted E n te r l o g i n p a s sword: 14. Enter the proper password.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 15. At the BRC> prompt, type: get rx_freq This command displays the receive frequency for the current Base Radio. For 800/900/1500 MHz Base Radios, the message respectively appears as: 800 MHz BR: BRC> get rx_freq The RX FREQUENCY is: 806.00000 900 MHz BR: BRC> get rx_freq The RX FREQUENCY is: 896.000 1500 MHz BR: BRC> get rx_freq The RX FREQUENCY is: 1453.000 16.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 18. At the BRC> prompt, type: get rssi 1 1000 This commands returns the receive signal strength indication. To pass the BER ßoor test, the Bit Error Rate must be less than 0.01% (1.0e-02%) for the displayed results. BRC> get rssi 1 1000 St ar t ing RSSI m onit or fo r 1 r e p e t i t i o n s ave ra g e d e a c h 1 0 0 0 r e p o r t s.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 21. At the BRC> prompt, type: get rx1_kit_no As shown below respectively for 800 /900/1500 MHz Base Radios, this command returns the kit number of the receiver.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 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.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Single Channel BR Backplane Single Channel BR Backplane Backplane Connectors All external equipment connections are made on the Base Radio backplane. Table 8-6 lists and describes each of the connectors on the backplane. Table 8-6 Base Radio Backplane Connectors Connector Description Type RX 1 through RX 3 Provides the input path for the received signal to the Base Radio. Each receiver has an input for one of these signals.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Single Channel BR Backplane Figure 8-7 shows the locations of the Base Radio external connections. RX 3 * AC POWER GROUND RX 2 DC POWER RX 1 BLACK RE EX EX OUT PA FB PA IN ETHERNET A 5MHZ/1 PPS B * 5MHZ/1 PPS A ALARM RS 232 PA OUT This port must be terminated by 50Ω load when configured for 2 Branch Diversity. Also, the rx_fru_config parameter must be set to R12.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Single Channel BR Backplane Backplane Connector Pinouts Table 8 lists the pin-outs for the 96-pin P1 connector of the Base Radio Controller board. Table 8 P1 Connector Pin-outs Pin No. Row A Row B Row C Table 12 lists the pin-outs for the 96-pin P1 connector for Receiver 1. Table 9 P1 Connector Pin-outs Pin No. Row A Row B Row C 1 AGC3 GND AGC1 2 AGC4 GND AGC2 3 GND GND GND 4 GND GND GND 1 AGC3 14.2V AGC1 2 AGC4 14.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Single Channel BR Backplane Table 13 lists the pin-outs for the 96-pin P2 connector for Receiver 2. Table 10 Table 11 P2 Connector Pin-outs P3 Connector Pin-outs Pin No. Row A Row B Row C Pin No. Row A Row B Row C 1 AGC3 GND AGC1 1 AGC3 GND AGC1 2 AGC4 GND AGC2 2 AGC4 GND AGC2 3 GND GND GND 3 GND GND GND 4 GND GND GND 4 GND GND GND 5 14.2V 14.2V 14.2V 5 14.2V 14.2V 14.2V 6 14.2V 14.2V 14.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Single Channel BR Backplane Table 14 lists the pin-outs for the 96-pin P5 connector of the Exciter. Table 12 lists the pin-outs for the 48-pin P2 connector of the 3X Receiver. Table 12 Pin No. P2 Connector Pin-outs Table 14 Row A Row B Row C Row D 1 GND AGC4 AGC3 GND 2 GND AGC2 AGC1 A0 3 GND RX1_DAT A RX1_DAT A A1 4 GND RX1_SBI RX1_ODC 5 GND RX2_DAT A 6 5V 7 Pin No.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Single Channel BR Backplane Table 15 lists the pin-outs for the 96-pin P6 connector of the Power AmpliÞer. Table 15 Pin No.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Single Channel BR Backplane Table 17 P8 Connector Pin-outs Pin No. Signal 1 CD 2 RxD 3 TxD 4 RCLK 5 GND 6 TCLK 7 RTS 8 CTS 9 BRG Table 18 P13 Connector Pin-outs Connector Signal 1 ETHERNET - A (or 5MHZ IN*) * May appear as indicated in parenthesis on some production units.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Single Channel BR Backplane Blind Mates - PA Table 22 Connector Signal P16 PA FEEDBACK P17 PA IN P18 PA RF OUT Table 23 8-42 P9 Connector Pin-outs Pin No. Signal 1 GND 2 GND 3 28V 4 28V 5 28V 6 28V 7 28V 8 28V 9 28V 10 28V 11 28V 12 28V 13 28V 14 28V 15 28V 16 14.2V 17 14.2V 18 14.2V 19 14.2V 20 14.2V 21 14.2V 22 14.2V 23 14.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Single Channel BR Backplane Table 23 P9 Connector Pin-outs (Continued) Pin No.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Single Channel BR Backplane Table 23 P9 Connector Pin-outs (Continued) Pin No.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Single Channel BR Backplane Base Radio Signals Table 8-24 lists and describes the Base Radio signals. Table 8-24 Base Radio Signal Descriptions Signal Name 6 8 P 8 1 0 9 5 E02- D 4/1/2000 Signal Description GND Station ground 28V 28VDC 14.2V 14.2VDC 5.1V 5.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Single Channel BR Backplane Table 8-24 Base Radio Signal Descriptions (Continued) Signal Name Signal Description METER_STAT Binary ßag used by the BRC to indicate to the BRC it should monitor 1PPS Global Positioning System - 1 pulse per second (this may be combined with 5MHz at the site frequency reference RCLK RS-232 - Receive clock TCLK RS-232 - Transmit clock CTS RS-232 - Clear to send RTS RS-232 - Request to send CD RS-232 - Car
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios 9 Troubleshooting QUAD Channel Base Radios Overview This chapter is a guide for installing a Quad Base Radio and isolating Base Radio failures to the FRU level. The chapter contains procedures for: ❐ Troubleshooting ❐ Installation ❐ VeriÞcation ❐ Station Operation The Base Radio maintenance philosophy is repair by replacing defective FRUs with new FRUs.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Table 9-1 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 Signal Generator HP4432b RX testing Dummy Load (50 Ω, 150 W) none Used to terminate output 3 way RF splitter none Used to connect Hp4432b to Base radio Service Computer IBM or clone, 80286 or better Local service terminal
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Troubleshooting Procedures Many troubleshooting and station operation procedures require Man-Machine Interface (MMI) commands. These commands communicate station level commands to the Base Radio via the RS-232 communications port on the front of the BRC. Routine Checkout Procedure 1 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.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Reported/Suspected Problem Use Procedure 2 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 9-2 shows the Procedure 2 Troubleshooting Flowchart.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Base Radio/Base Radio FRU Replacement Procedures Base Radio/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, post-replacement adjustments and veriÞcation instructions.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Base Radio/Base Radio FRU Replacement Procedures 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 Power AmpliÞer module to reduce the BR weight. Remove the two M10 Torx screws that secure the Power AmpliÞer module. Slide the module out of the chassis. 4.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Base Radio/Base Radio FRU Replacement Procedures NOTE Base Radio removal and installation procedures appear 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 according to ÒBase Radio FRU Replacement ProcedureÓ below. Anti-Static Precautions CAUTION The Base Radio contains static-sensitive devices.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Base Radio/Base Radio FRU Replacement Procedures NOTE After a Control Board or BR replacement, the integrated Site Controller (iSC) reboots the BR. Whenever the BR goes off-line, the Replacement BRC Accept Timer begins counting down. A BR reboot occurs if the BR remains off-line as the timer times out. (The timerÕs default period is three minutes.) If someone turns on the BR before the timer times out, power down the BR.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Base Radio/Base Radio FRU Replacement Procedures Power Amplifier (PA) Fan FRU Replacement Perform the following steps to replace the Power AmpliÞer (PA) fans. 1. Remove the Power AmpliÞer 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 To install the new fan kit, reverse above procedure.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures Station Verification Procedures Perform the Station VeriÞcation Procedures whenever you replace a FRU. The procedures verify transmit and receive operations. Each procedure also contains the equipment setup. Replacement FRU Verification Before shipment, the factory programs all module-speciÞc information. Base Radio speciÞc information (e.g.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 4. Collect revision numbers from the station by typing the following command: fi e ld > fv -o p la tfo r m field> 5. If all modules return revision numbers of the format ÒRxx.xx.xxÓ, then all revision numbers are present. In that case, veriÞcation requires no further action. If revision numbers return as blank, or not in the format ÒRxx.xx.xxÓ, contact your local Motorola representative or Technical Support. 6.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 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. Equipment Setup To set up the equipment, use the following procedure: 1.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 13. Perform the appropriate transmitter veriÞcation procedure below for the particular Power AmpliÞer used in the Base Radio. Transmitter Verification Procedure (QUAD Carrier 800 MHz Power Amplifiers) This procedure provides commands and responses to verify proper operation of the transmit path for 800 MHz Base Radios using a 70 Watt Power AmpliÞer. 1.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures fi el d> f re q - o t x ch 1 -f8 6 0 fi el d> f re q - o t x ch 2 -f8 6 0 .0 2 5 fi el d> f re q - o t x ch 3 -f8 6 0 .0 5 fi el d> f re q - o t x ch 4 -f8 6 0 .0 7 5 fi el d> 3.2 Set the transmit DSP test mode to Òdnlk_framed.Ó fi el d> p t m - o t x_ a ll -md n lk _ fr a me d fi el d> 3.3 Enable the channels by setting a data pattern to Òiden.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 4.1 Check channel 1. At the Þeld> prompt, type: field> power -otxch1 fi e ld > 4.2 Check channel 2. At the Þeld> prompt, type: field> power -otxch2 fi e ld > 4.3 Check channel 3. At the Þeld> prompt, type: field> power -otxch3 fi e ld > 4.4 Check channel 4. At the Þeld> prompt, type: field> power -otxch4 fi e ld > 5. This command returns all active alarms of the Base Radio.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures Figure:9-3 7. Quad Channel Spectrum (800 MHz BR) Dekey the BR to verify that no RF power is being transmitted. Set the transmit DSP test mode to Òstop." At the Þeld> prompt, type: field> ptm -otx_all -mstop field> power -otxch1 -p0 field> Equipment Disconnection Use the following steps to disconnect equipment after verifying the transmitter. 9-16 1.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 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.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 7. Attach RF output from the HP4432b to a 3 way splitter. Attach the output of the three way splitter to the antenna connections in the back of the BR. 8. Attach the 'event 2' port in the rear panel to pin 6 on the front panel of the BR. 9. The 4432b must have the Proprietary Tornado downlink Þles to be conÞgured correctly. 10. Turn on the 4432b. Press the 'mode' key. Select the 'arbitrary waveform generator'.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 3. Using the MMI commands below, issue the command to put the BR into 3RX mode. If the resulting bit error rates for receiver branches 1, 2, and 3 are less than 8%, the receiver has passed the test. 3.1 Start by checking Receiver 1.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 Station Verification Procedures 3.4 Check Receiver 4. At the Þeld> prompt, type: fi el d> f re q - o rxch 4 -f8 1 0 fi el d> en a ble - or x ch 4 -s o n fi el d> sg e - o rx_ a ll -s o ff fi el d> es - o rx_ a ll -tex t_ tr igg e r fi el d> p ee r_ p e r fo r ma n c e _ c o n fig -o r x ch 4 -mp a th -p a ll fi el d> p ee r_ p e r fo r ma n c e _ r e p o r t -o r x ch 4 -a 1 0 0 -r 1 field> 4.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios Station Verification Procedures 6 8 P 8 1 0 9 5E02- D 12/12/2000 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 RX1, RX2, and RX3 connectors located on the backplane of the Base Radio. 5. Connect the standard equipment cable to the RX1 connector. 6. Restore power to the Base Radio by setting the Power Supply rocker switch to the ON (1) position.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 QUAD Channel BR Backplane QUAD Channel BR Backplane Backplane Connectors The Base Radio backplane includes all external equipment connections. Table 9-3 lists and describes the backplane connectors.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios QUAD Channel BR Backplane Figure 9-4 shows the locations of the Base Radio external connections. RX 3 * AC POWER GROUND RX 2 E B T DC POWER RX 1 RE ETHERNET A 5MHZ/1 PPS B T * 5MHZ/1 PPS A P IH S R U CI T ALARM S U M E RS 232 PA OUT N A CH BLACK EX EX OUT PA FB PA IN This port must be terminated by 50Ω load when configured for 2 Branch Diversity. Also, the rx_fru_config parameter must be set to R12.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 QUAD Channel BR Backplane Backplane Connector Pinouts Table 9-5 lists the pin-outs for the Base Radio Controller boardÕs 168-pin P1 connector. Table: 9-5EXBRC P1 Pinout, Signal and Power 9-24 Row A B C D 1 GND 3.3 Vdc 3.3 Vdc NC 2 GND 3.3 Vdc 14.2 Vdc 14.2 Vdc 3 GND 3.3 Vdc 14.2 Vdc 14.2 Vdc 4 GND GND GND GND 5 NC NC NC NC 6 GND GND GND GND 7 GND 16.8MHz_RX 16.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios QUAD Channel BR Backplane Table: 9-5EXBRC P1 Pinout, Signal and Power Row A B C D 36 SSI_Data_B_RTN SSI_CLK_B_RTN NC 3.3 Vdc 37 GND GND 3.3 Vdc 3.3 Vdc 38 DSPIa_MOSI DSPIa_CLK DSPIa_EN_1 DSPIa_EN_2 39 DSPIa_MOSI_RTN DSPIa_CLK_RTN DSPIa_EN_3 NC 40 GND GND 3.3 Vdc 3.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 QUAD Channel BR Backplane RX1 Connections Table 9-9 Row A B C D 1 NC GND GND Clock_SyncA_ 2 GND DSPIa_MOSI_RTN DSPIa_CLK_RTN DSPIa_EN_1 3 GND DSPIa_MOSI DSPIa_CLK DSPIa_EN_2 4 GND GND GND GND 5 14.2 SSI_CLK_A_RTN SSI_FS_B SSI_CLK_B_RTN 6 14.2 SSI_CLK_A SSI_FS_A SSI_CLK_B 7 14.2 GND GND GND 8 14.2 SSI_Data_A_RTN GND SSI_Data_B 9 GND SSI_Data_A GND SSI_Data_B_RTN 10 GND NC NC NC 11 3.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios QUAD Channel BR Backplane RX2 Connections Table 9-11 Row A B C D 1 NC GND GND Clock_SyncA_ 2 GND DSPIa_MOSI_RTN DSPIa_CLK_RTN DSPIa_EN_3 3 GND DSPIa_MOSI DSPIa_CLK DSPIa_EN_2 4 GND GND GND GND 5 14.2 SSI_CLK_B_RTN NC NC 6 14.2 SSI_CLK_B SSI_FS_B NC 7 14.2 GND GND GND 8 14.2 SSI_Data_B_RTN GND NC 9 GND SSI_Data_B GND NC 10 GND NC NC NC 11 3.3 RxRESET_ NC (ID0) GND (ID1) 12 3.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 QUAD Channel BR Backplane RX3 Connections Table 9-13 Row A B C D 1 NC GND GND Clock_SyncB_ 2 GND DSPIb_MOSI_RTN DSPIb_CLK_RTN DSPIb_EN_1 3 GND DSPIb_MOSI DSPIb_CLK DSPIb_EN_2 4 GND GND GND GND 5 14.2 SSI_CLK_C_RTN SSI_FS_D SSI_CLK_D_RTN 6 14.2 SSI_CLK_C SSI_FS_C SSI_CLK_D 7 14.2 GND GND GND 8 14.2 SSI_Data_C_RTN GND SSI_Data_D 9 GND SSI_Data_C GND SSI_Data_D_RTN 10 GND NC NC NC 11 3.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios QUAD Channel BR Backplane RX4 Connections Table 9-15 Row A B C D 1 NC GND GND Clock_SyncB_ 2 GND DSPIb_MOSI_RTN DSPIb_CLK_RTN DSPIb_EN_3 3 GND DSPIb_MOSI DSPIb_CLK DSPIb_EN_2 4 GND GND GND GND 5 14.2 SSI_CLK_D_RTN NC NC 6 14.2 SSI_CLK_D SSI_FS_D NC 7 14.2 GND GND GND 8 14.2 SSI_Data_D_RTN GND NC 9 GND SSI_Data_D GND NC 10 GND NC NC NC 11 3.3 RxRESET_ NC (ID0) NC (ID1) 12 3.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 QUAD Channel BR Backplane PA Connections Table 9-17 Row PA P10 Pinout, Signal and Power A B C 1 SPI_ENABLE GND 28.6 Vdc 2 GND GND 28.6 Vdc 3 SPI_A0 GND 28.6 Vdc 4 GND GND 28.6 Vdc 5 SPI_A1 GND 28.6 Vdc 6 GND GND 28.6 Vdc 7 SPI_A2 GND 28.6 Vdc 8 GND GND 28.6 Vdc 9 SPI_M0 GND 28.6 Vdc 10 GND GND 28.6 Vdc 11 SPI_M1 GND 28.6 Vdc 12 GND GND 28.6 Vdc 13 SPI_M2 GND 28.6 Vdc 14 GND GND 28.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios QUAD Channel BR Backplane Table: 9-19EXBRC P17 Pinout, PA to Exciter Coaxial Description Center PA Feedback Outer GND Table: 9-20EXBRC P18 Pinout, PA RF OUT Coaxial Description Center PA RF OUT Outer GND External Connections Table: 9-21Backplane Coaxial and DC Signal P12 -48 Vdc Power P13 EX Out P14 Feedback P15 Ethernet P16 PA In P17 PA Feedback P18 PA RF OUT P19 RX Branch 1 P20 RX Branch 2 P21 RX Branch 3 P24 5 M
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 QUAD Channel BR Backplane Table: 9-22Backplane Alarm 25Pin Dsub (P23) Alarm Signal 7 8 9 10 GND 11 12 13 14 15 16 GND 17 BAT_STAT_ 18 MTR_STAT_ 19 EXT_VFWD 20 EXT_VREV 21 GND 22 GND 23 24 25 GND Table: 9-23Backplane RS-232 9 Pin Dsub (P22) RS-232 Signal 9-32 1 CD 2 RxD 3 TxD 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 BRG* 68P81095E02-D 12/12/2000
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios QUAD Channel BR Backplane PS Connections Table: 9-24PS Power and Signal (P11) Pin Description Pin Description Pin Description 1 2 GND (Plug In) 31 GND 32 3.3 Vdc 61 SPI_MOSI GND 62 SPI_CLK 3 GND 33 GND 63 N.C. 4 5 28.6 Vdc 34 GND 64 N.C. 28.6 Vdc 35 GND 65 N.C. 6 28.6 Vdc 36 GND 66 N.C. 7 28.6 Vdc 37 GND 67 SPI_A0 8 28.6 Vdc 38 GND 68 SPI_A1 9 28.6 Vdc 39 GND 69 SPI_M2 10 28.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 QUAD Channel BR Backplane Table: 9-2548 Vdc Battery Power (P12) 9-34 Pin Description Description Pin 1 + BATTERY + BATTERY 5 2 + BATTERY + BATTERY 6 3 - BATTERY (RTN) - BATTERY (RTN) 7 4 - BATTERY (RTN) - BATTERY (RTN) 8 68P81095E02-D 12/12/2000
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios QUAD Base Radio Signals QUAD Base Radio Signals Table 9-26 lists and describes signals for the QUAD Base Radio . Table: 9-26QUAD Base Radio Signal Descriptions 6 8 P 8 1 0 9 5E02- D Signal Name Description 28.6 Vdc 28.6 Vdc output from PS 14.2 Vdc 14.2 Vdc output from PS 3.3 Vdc 3.
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 QUAD Base Radio Signals Table: 9-26QUAD Base Radio Signal Descriptions 9-36 Signal Name Description TxD RS232 TX Data DTR RS232 Data Terminal Ready DSR RS232 Data Set Ready RTS RS232 Request to Send CTS RS232 Clear to Send Special BRG Baud Rate Generator RxRESET_ Reset Signal to RX modules 16.8MHz_RX 16.8 MHz reference to RX differential 16.8MHz_RX_RTN 16.
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EBTS System Manual - Vol 2 800/900/1500 MHz Base Radios QUAD Base Radio Signals Table: 9-26QUAD Base Radio Signal Descriptions 6 8 P 8 1 0 9 5E02- D Signal Name Description Special DSPIb_MOSI_RTN DSPb SPI MOSI return differential DSPIa_CLK DSPa SPI Clock differential DSPIa_CLK_RTN DSPa SPI CLK return differential DSPIb_CLK DSPb SPI Clock differential DSPIb_CLK_RTN DSPb SPI CLK return differential MTR_STAT_ External Wattmeter Status BAT_STAT_ Battery Status EXT_VFWD External Wattme
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800/900/1500 MHz Base Radios EBTS System Manual - Vol 2 This Page Intentionally Left Blank 9-38 68P81095E02-D 12/12/2000
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Appendix A A Acronyms A/D Analog-to-Digital CC Control Cabinet A 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
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Appendix A Acronyms EBTS System Manual - Vol 2 DMA Direct Memory Access HSO High Stability Oscillator DOP Dilution of Precision HVAC Heating/Ventilation/Air Conditioning DRAM Dynamic Random Access Memory Hz Hertz DSP Digital Signal Processor I/O Input/Output DTE Data Terminal Equipment IC Integrated Circuit DTTA Duplexed Tower-Top AmpliÞer iDEN integrated Dispatch Enhanced Network DVM Digital Volt Meter IEEE E1 European telephone multiplexing standard Institute of Electrical a
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EBTS System Manual - Vol 2 Appendix A Acronyms 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 Rec
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Appendix A Acronyms EBTS System Manual - Vol 2 SPI Serial Peripheral Interface Vac Volts - alternating current SQE Signal Quality Error VCO Voltage Controlled Oscillator SRAM Static Random Access Memory VCXO Voltage Controlled Crystal Oscillator SRC Subrate Controller Vdc Volts - direct current SRI Site Reference Industry standard VFWD Voltage representation of Forward Power SRIB SMART Radio Interface Box VME Versa-Module Eurocard SRRC Single Rack, Redundant Controller (conÞgurati
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Index Appendix A Index B Base Radio 40W, 800 MHz Power Amplifier TLF2020 (version 1580A) Testing/verification (Base Radio section) ............................................................................10-11, 10-23 40W, 800 MHz Power Amplifier TLF2020 (version 1580B) Testing/verification (Base Radio section) ............................................................................10-11, 10-23 60W, 900 MHz Power Amplifier CLN1355A Testing/verification (Base Radio section) ...........................
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Index EBTS Base Radios M Maintenance Philosophy (Foreword) ................................................................................................................... x Motorola Customer Support Center Support Center address and phone number (Foreword) ........................................................................... x P Purpose of Manual (Foreword).............................................................................................................................