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Motorola MTR2000 Installation And Operation Manual

Base station, repeater and receiver for analog conventional, and trunking systems.
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MTR2000
Base Station, Repeater and Receiver
For Analog Conventional,
and Trunking Systems
Installation and Operation
Manual
68P81096E20-N

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   Summary of Contents for Motorola MTR2000

  • Page 1

    ™ MTR2000 Base Station, Repeater and Receiver For Analog Conventional, and Trunking Systems Installation and Operation Manual 68P81096E20-N...

  • Page 2

    The Motorola products described in this instructions manual may include copyrighted Motorola computer programs stored in semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted com- puter programs. Including the exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copyright- ed Motorola computer programs contained in the Motorola products described in this Instruction manual may not be copied or reproduced in any manner without the express written permission of Motorola.

  • Page 3

    ENVIRONMENTAL INFORMATION Material Content The material content of the MTR2000 is 16% of the product it replaces. The following table provides a rough estimate of the material content of the station. The actual percentages vary in relation to the station config- uration.

  • Page 4

    In European Union countries, please contact your local equipment supplier represen- tative or service center for information about the waste collection system in your country. Disposal Guideline The following symbol on a Motorola product indicates that the product should not be disposed of with household waste. 68P81096E20-N 06/28/05...

  • Page 5: Scope Of Manual

    FOREWORD Scope of Manual This manual is intended for use by experienced technicians familiar with similar types of equipment. It provides information which allows installation personnel to unpack, mechanically install, electrically connect, and verify operation of the sta- tion. The information in this manual is current as of the printing date. Chang- es which occur after the printing date are incorporated by Manual Revi- sions (SMR).

  • Page 6: General Safety Information

    • DO NOT operate this equipment near electrical blasting caps or in an explosive atmosphere. • All equipment must be properly grounded according to Motorola installation instructions for safe opera- tion. • All equipment should be serviced only by a qualified technician.

  • Page 7: Table Of Contents

    Summary of Operating Features ........... . . 3 MOTOROLA, MTR2000, Spectra-TAC, DigiTAC and Private Line are trademarks of Motorola Inc.

  • Page 8

    STATION COMPONENTS ..............4 FUNCTIONAL THEORY OF OPERATION .

  • Page 9

    Transferring Equipment from Shipping Container to Rack or Cabinet ... . . 16 Installing Slide Rail Assembly in a Motorola Cabinet ......17 Installing Slide Rail Assembly in a Non-Motorola Cabinet .

  • Page 10

    OPTIMIZATION ............... . . 47 Optimizing Tasks .

  • Page 11

    MTR2000 Station Components ........

  • Page 12

    List of Tables INSTALLATION INSTALLATION 68P81096E37 Table 1. Configuring Input GPI_14 Function ....... . 24 Table 2.

  • Page 13: Introduction

    DESCRIPTION INTRODUCTION The Motorola MTR2000 Base Station/Repeater provides analog conventional and trunking capabilities in a reli- able, software-controlled design. An innovative modular design and microprocessor-controlled Station Control Module (SCM) allows for superior station flexibility and simplified system upgrades. All of the features described in this manual may not be currently supported. Refer to the “Summary of Operating Features”...

  • Page 14: Electrical Design

    Trunking Capability When equipped for trunking capability, the station can operate in Motorola's Smart- net™ or the most advanced wide-area trunking system – SmartZone. The station can operate as a remote voice channel or control channel repeater.

  • Page 15: Summary Of Operating Features

    (CLN1206). Features Not Offered Please disregard any references to the following items since they are not available for the MTR2000: • DC Remote control for the 4-wire Wireline Interface Board, CLN1203. • Second Receiver configuration of the MTR2000. 68P81096E36-H 06/28/05...

  • Page 16: Station Components

    Fans and fan covers are only used on high power are only used on high power Power Amplifier modules and Power Amplifier modules and Power Supplies. Power Supplies. Power Amplifier Bottom Plate Module Front Cover Figure 2. MTR2000 Station Components 68P81096E36-H 06/28/05...

  • Page 17: Functional Theory Of Operation

    Description FUNCTIONAL THEORY OF OPERATION The following functional theory of operation provides an overview of the station circuitry. For a more thorough functional description of a particular module, refer to the STATION MODULES section of the appropriate band- specific Instruction Manual. The block diagram in Figure 3 supports the following functional theory of operation. Transmitter Circuitry Operation Introduction The Transmitter Circuitry comprises two modules, the Exciter Module and the Pow-...

  • Page 18

    Description between the Pre-driver stage and the Final Module. The gain of the Pre-driver stage is controlled by a power control voltage which is derived from power control signals (from the SCM) and high VSWR/thermal protection circuitry on the PA output board.

  • Page 19: Receiver Circuitry Operation

    Description Receiver Circuitry Operation Introduction The Receiver Circuitry accepts receive rf signals from the site receive antenna, per- forms filtering and dual conversion, and outputs a digitized receive signal to the Sta- tion Control Module. The receiver module utilized may have either an internal varactor-tuned preselector filter, or an external metal preselector filter.

  • Page 20: Station Control Module Operation

    Description Station Control Module Operation Introduction The Station Control Module (SCM) is the microprocessor-based controller for the sta- tion. Major components include an MC68356 microprocessor, which combines a 68302 Integrated Multiprotocol Processor (IMP) with a 56002 Digital Signal Processor (DSP), a DSP ASIC device, and several Codec filter devices. Station Control Module Operation The MC68356 forms the heart of the SCM.

  • Page 21: Wireline Interface Board Operation

    A latch receives control signals from the SCM (via the SPI bus) to control the gat- ing of the audio signals. For a list of the actual features supported, refer to the “Summary of Operating Fea- tures” on page 3, or the MTR2000 System Planner. Note 68P81096E36-H...

  • Page 22: Auxiliary I/o Board Operation

    Description Auxiliary I/O Board Operation Introduction The Auxiliary I/O Board serves as the interface between the customer auxiliary equipment and the Station Control Module (SCM). In general, the Auxiliary I/O Board routes all auxiliary equipment control signals between the SCM and the aux- iliary equipment (e.g., a trunking controller).

  • Page 23: Power Supply Module Operation

    Description Power Supply Module Operation Power Supply Modules are offered to handle: • ac or dc input power • low power (250 W) or high power (500 W) station requirements A high power Power Supply Module (500 W) is used in a station with a high power Power Amplifier Module (e.g., rated at 100 W or 75 W output power).

  • Page 24

    Description dc Input Power For dc-only operation the 250 W Power Supply Module (DLN6624) accepts a dc in- put (+10.8 to +16 Vdc). The output voltages are: the input filtered voltage. a regulated +5.1 Vdc. For dc-only operation the 500 W Power Supply Module (DLN6622) accepts a dc in- put (+21 to +32 Vdc).

  • Page 25

    Description THIS PAGE INTENTIONALLY LEFT BLANK 68P81096E36-H 06/28/05...

  • Page 26

    20 KHz CODEC BUS TRUNKING AUDIO 24 KHz CODEC BUS 24 KHz CODEC BUS MRTI AUDIO RSSI DATA RSSI RECEIVER SIGNAL MEMORY CIRCUITRY STRENGTH INDICATOR (OPTION DEPENDENT) Figure 3. MTR2000 Station Functional Block Diagram (Sheet 1 of 2) 68P81096E36-H 06/28/05...

  • Page 27

    SPI BUS CONTROL CIRCUITRY LOW-PASS 50 W TWO CIRCULATORS 15 W FILTER/ INTERMEDIATE BUTTERFLY DIRECTIONAL MODULE POWER AMP COUPLER 50 OHM 50 OHM LOAD LOAD PA ENABLE Figure 3. MTR2000 Station Functional Block Diagram (Sheet 2 of 2) 68P81096E36-H 06/28/05...

  • Page 28: Installation

    • this entire installation section before beginning the actual installation, and • the Motorola Quality Standards Fixed Network Equipment Installation manual, R56 (68P81089E50); specif- ically refer to the information on ground connection for lightning protection. Installation Overview The following information is an overview for installing the station and an- cillary equipment.

  • Page 29: Environmental Conditions At Intended Installation Site

    Installation • Perform a post-installation functional checkout test of the equipment to verify proper installation • Proceed to the Optimization procedures to customize the station pa- rameters per customer specifications (e.g., operating frequency, PL, codes, etc.) Regulatory requirements may require the use of an optional high stability reference for some modes of operation.

  • Page 30: Equipment Ventilation

    The high-power (100/75W) stations are equipped with cooling fans that are used to provided forced convection cooling. When planning the installation, observe the following ventilation guide- lines: Mounting the MTR2000 • Customer-supplied cabinets must be equipped with ventilation slots in a Cabinet or openings in the front (for air entry) and back or side panels (for air to exit).

  • Page 31: Ac Input Power Requirements

    Beginning January 1, 2001, input harmonic current specifications were European Union (EU) changed for most electronic telecommunication equipment installed in EU countries. Accordingly, power factor correction is necessary for MTR2000 Countries stations. Power Supply models DLN6622 and DLN6624 have internal power factor correction.

  • Page 32: Equipment Mounting Methods

    Installation Equipment Mounting Methods The station equipment may be mounted in a rack or cabinet (available as options). The station can be shipped: • …in an floor-mount indoor cabinet. Each floor-mount cabinet has front and rear vented doors and has the capacity to hold a minimum of a single station (see thermal limitations described under Equip- ment Ventilation), and required ancillary equipment.

  • Page 33: Floor-mount Cabinet

    Installation Floor-mount Cabinet The physical dimensions for all available floor-mount cabinets are shown in Figure 2. All dimensions are common to all cabinets, except for cabinet height. The cabinet options and associated height are: Cabinet Option Height X52AF 76.2cm (30in) X308AD 1.168m (46in) X180AC...

  • Page 34: Floor-mount Cabinet - Dimensions And Clearances

    Installation 55.9 cm 55.9 cm (22 in) (22 in) 46.5 cm 46.5 cm (18.3 in) (18.3 in) 45.2 cm (17.8 in) FRONT Station 1.524m Support (60 in) Brackets (2) 1.168m (46 in) 76.2 cm (30 in) 0.64 cm (0.25 in) Mounting FRONT VIEW SIDE VIEW...

  • Page 35: Modular Racks

    FRU kit CLN6679A (MTR2000 Rack Mounting Hardware) is included with each Rack Option. This allows proper installation of the MTR2000 station within the rack’s centre of gravity. This kit includes two rack mount standoffs and eight mounting screws.

  • Page 36: Modular Rack - Dimensions And Clearances

    Installation 1.59cm 20.58cm 76.2cm (0.625in) (8.1in) (3in) 9.22cm 0784384T03 (3.63in) 13.21cm 15.9mm Diam 5.25in Dimension B Dimension B (0.625in) Standoff 13.21cm 3.81cm 17.78cm (5.25in) (1.5in) (7in) 10.97cm (4.375in) Dimension B Dimension A SIDE VIEW 17.78cm (7in) 7.22cm Dimension B Dimension B (2.85in) 38.74cm 9.4mm Diam...

  • Page 37: Site Grounding And Lightning Protection

    Motorola recommends the following reference source: Motorola Quality Standards Fixed Network Equipment Note Installation manual, R56 .

  • Page 38: Recommended Tools And Equipment

    Note Cabinet Unpacking When a station (mounted in a cabinet) is delivered from Motorola, it ar- rives in suitable packing materials. If the unpacked equipment is dam- aged, return it to Motorola in its original packaging. Equipment should be handled in its original packaging until it is deliv- STOP ered to its final destination.

  • Page 39: Mechanical Installation

    The equipment must be immediately inspected for damage after un- STOP packing, and a report of the extent of any damage made to the transpor- tation company and to Motorola. IMPORTANT Unpacking Stations The station is shipped in a carton, cushioned by four plastic inserts at the corners of the carton.

  • Page 40: Unpacking Floor-mount Cabinets

    Installation Unpacking Floor-mount Cabinets The floor-mount cabinets are shipped mounted to a wooden skid, secured with corrugated corner braces held by a plastic strap, and covered with a cardboard cover. Unpack the equipment as described in Figure 3. 68P81096E37-N 06/28/05...

  • Page 41: Mtr2000 Station Functional Block Diagram (sheet 1 Of 2)

    Installation Remove cardboard cover from station. Remove antistatic bag. Do not discard bag, it will be reinstalled to protect equipment during installation. Cardboard Cover Antistatic Bag Top Packing Spacer Depending on cabinet type, either open or remove front and rear doors to gain access to the four (4) bolts securing the station to the Cut This Band...

  • Page 42: Mounting Procedures

    Installation Mounting Procedures Introduction In most cases, stations are shipped in the selected cabinet or rack (i.e., the station is mounted and cabled), and may be installed by following the pro- cedures below. However, the following three scenarios require special mounting procedures: •...

  • Page 43: Mounting Floor-mount Cabinets

    As mentioned under Equipment Unpacking and Inspection, a station can be shipped in a box. Upon delivery, the equipment must be removed from the container and transferred to a Motorola-supplied rack or cabinet, or to a customer-supplied rack or cabinet.

  • Page 44: Installing Slide Rail Assembly In A Motorola Cabinet

    Installation Installing Slide Rail Assembly in a Motorola Cabinet Referring to Figure 4, perform the following procedure to install slide rail option X968AA. On a bench-top, working Remove the Inner-Slide Rail from the slide assembly (left and right) by depressing the Slide Locking Latch and sliding the Inner-Slide Rail on one side of the slide rail out from the slide assembly.

  • Page 45: Slide Rail Installation; Option X968aa (left Side Shown)

    Installation The left-side slide rail assembly is shown, as viewed from the front of the cabinet. Note The left side is a mirror image of the right Cabinet side. Rail, front Direction That Station Bracket Screws; Cabinet Slides Out 6mm panhead (4) Rail, rear Outer-Slide Rail Inner-Slide Rail...

  • Page 46: Installing Slide Rail Assembly In A Non-motorola Cabinet

    Installation Installing Slide Rail Assembly in a Non-Motorola Cabinet Referring to Figure 5, perform the following procedure to install slide rail option X346AB. On a bench-top, working Remove the Inner-Slide Rail from the slide assembly (left and right) by depressing the Slide Locking Latch and sliding the Inner-Slide Rail on one side of the slide rail out from the slide assembly.

  • Page 47: Slide Rail Installation; Option X346ab (left Side Shown)

    Installation Install a cage nut in line with Front clearance hole in Threaded Strip Cabinet Rail prior to fitting bracket to the front cabinet rail. This nut is required for mounting Station the station. Mounting The cage nuts are provided with Screws;...

  • Page 48: Board Configuration

    Installation BOARD CONFIGURATION Most station configuration parameters are altered through the Radio Service Software (RSS) with the exception of some parameters for the following boards, which are configured through jumpers: • 4-Wire Wireline Interface Board (CLN1203), • 4-Wire Euro Wireline Interface Board (CLN1204), •...

  • Page 49: Cln1204 Wireline Interface Board Jumper Settings

    Installation √ = Jumper In P1, P5, P8, P9 A = Pin 1 connects to Pin 2 Reference Country P3, P7 * This setting represents a Impedance standard 600 ohm matching √ √ Australia and is the factory default. 120ηF B = Pin 3 connects to Pin 4 √...

  • Page 50: Auxiliary I/o Board

    Installation Auxiliary I/O Board Jumpers are provided to route inputs and outputs in a specific direction to and from the SCM; the SCM determines the functionality of the inputs and outputs. The board jumpers are shown in Figure 8. GPI_14 is a special input which can be jumpered to be a transistor input or opto isolated.

  • Page 51: Table 1. Configuring Input Gpi_14 Function

    Installation Table 1. Configuring Input GPI_14 Function Auxiliary I/O Board Jumpers System Function on Input Type Connector GPI_14 Input Pins (See Note 1) via Optocoupler (E/M sub). A29 Opto + 3 - 4, 1 - 2 (See Note 2) A26 Opto – Fast External PTT* via Transistor 9 - 10, 7 - 8...

  • Page 52: Table 3. Configuring Output Gpo_15 Function

    Installation Table 3. Configuring Output GPO_15 Function Auxiliary I/O Board Jumpers System Connector (J5) Function on GPO_15 Output Type Output Pins via Relay Closure C3, B3 2 - 4 2 - 4 Fast Carrier Detect via Open Collector B21 (see Note 4) 3 - 4 2 - 4 via Relay Closure...

  • Page 53: Electrical Connections

    Installation ELECTRICAL CONNECTIONS After the station equipment has been mechanically installed, electrical connections must be made. This involves making the following connections to: • power supply, • antenna coax cables, • system cables, and • telephone lines. When installing option boards, ensure that an Electro-Static Discharge (ESD) cable is STOP...

  • Page 54: Location Of External Connectors At Rear Of Station

    Installation Figure 9 shows the position of the station external connectors located at the rear of the station. Wireline Tx RF Battery Backup and System Rx RF Connector Connector DC Input Connector Connector Connector Trunking / MRTI AC Power Connector Ground Connector (Not used in DC mode)

  • Page 55: Power Supply Connections

    Installation Power Supply Connections AC Input Power Connection Do not apply ac power to the station at this time. Make sure that the cir- cuit breaker associated with the ac outlet is turned to OFF. CAUTION The ac socket-outlet must be installed near the equipment and must be easily accessible.

  • Page 56: Ground Connection

    #010-519-20 (Motorola Model #L1883) for 12V charging systems, and WARNING Argus Technologies Model #010-523-20 (Motorola Model #L1884) for 24V charging systems. These systems were developed specifically for this interface and tested by Motorola for proper station operation. Dam- 68P81096E37-N 06/28/05...

  • Page 57: Making Connections To Storage Battery

    Installation age resulting from use of any other charging systems will void the war- ranty. Refer to qualified sales/service representative for charger ordering information. The station is to be connected to a battery supply that is in accordance with the applicable electrical codes for the end use country; for example, the National Electric Code ANSI/NFPA No.70 for the U.S.

  • Page 58: Rf Antenna Connections

    Installation RF Antenna Connections The transmit and receive antenna rf connections are made using two sep- arate N-type connectors. Coax cables from the receive and transmit anten- nas must be connected to the two N-type connectors. The position of these connectors is shown in Figure 9.

  • Page 59: System Cable Connections

    Installation System Cable Connections System connections are made through one or both of the following connec- tors: the Trunking/MRTI connector and the System connector. Trunking/MRTI The location of the Trunking/MRTI connector and System connector on Connector the station rear panel is shown in Figure 9. The following cables are available for trunking system applications: 7.62m (25ft) Trunk Cable, part # 3083765X04 15.24m (50ft) Trunk Cable, part # 3083765X05...

  • Page 60: Table 4. System Connector - Commonly Used Pins

    Installation Table 4. System Connector – Commonly Used Pins Pin Function Pin # Pin Signal Characteristics Name Description RdStat TTL compatible logic output C2, B21, 0.0 to 0.2Vdc with squelched receiver, indicating Rx. Activation B3/C3 4.8 to 5.2Vdc with unsquelched receiver. status.

  • Page 61: Table 5. Summary Of Auxiliary Inputs/outputs At The System Connector

    Installation Table 5 provides a summary of the Auxiliary Inputs / Outputs (Wildcard I/O) currently available through the System Connector. Table 5. Summary of Auxiliary Inputs/Outputs at the System Connector Auxiliary I/O System Auxiliary I/O System GPI_… Connector (J5) Pin GPO…...

  • Page 62: Table 6. J5 System Connector, Row A Pins

    Installation Table 6. J5 SYSTEM CONNECTOR, Row A Pins Input/ Pin # Pin Assignment To/From Signal Characteristics Output GPO_8 (WCO) J1-C32, J2-C32 OCO, 100mA, 40V PA Fail (Aux I/O) J1-C31, J2-C31 OCO, 100mA, 40V, active low SCI_CLCK1 J1-C30, J2-C30, J3-C28 Do not use.

  • Page 63: Table 7. J5 System Connector, Row B Pins

    Installation Table 7. J5 SYSTEM CONNECTOR, Row B Pins Input/ Pin # Pin Assignment To/From Signal Characteristics Output RX Lock (Aux I/O) J1-B32, J2-B32 OCO, 100mA, 40V; active high GPO_13 (WCO) J1-B31, J2-B31 OCO, 100mA, 40V RdStat or GPO_15, Note 4 J1-B30, J2-B30 One side of normally open relay, see C3 Carrier Detect Switch...

  • Page 64: Table 8. J5 System Connector, Row C Pins

    Installation Table 8. J5 SYSTEM CONNECTOR, Row C Pins Input/ Pin # Pin Assignment To/From Signal Characteristics Output TX Lock (Aux I/O) J1-A32, J2-A32 OCO, 100mA, 40V; active high Rdstat-R2 Control J1-A31, J2-A31, J3-A26 TTL output, high when unsquelched RdStat or GPO_15, Note 4 J1-A30, J2-A30 Other side of normally open relay, see B3 Failsoft Output (Aux I/O)

  • Page 65: Telephone Line Connections

    Installation Telephone Line Connections Introduction In conventional systems where the station is controlled by a remote con- sole, or in wide area systems utilizing comparators, phone lines must be connected between the station and the remote equipment. The phone lines may carry analog voice, or encoded voice. Also carried on the phone lines are Tone Remote Control (type of remote control signalling).

  • Page 66: Telephone Line Specifications

    Installation Telephone Line Specifications Most telephone companies recognize either “3002” or “Type 5” as desig- nations to define phone line types and associated electrical specifications. Telephone lines meeting the specifications for either of these types are ac- ceptable for use with the station. Table 9 shows the specifications for “3002”...

  • Page 67: Location Of Telephone Line Connections

    Installation Location of Telephone Line Connections Wireline Connector When 4-wire (2 line) telephone connections are required, Line 1 and Line 2 are provided through the 4–position wire wrap terminal connector. Table 10 provides a description of the Wireline connector line pair assign- ments.

  • Page 68: System Type Vs. Wireline Circuit

    Installation System Type vs. Wireline Circuit Table 11 shows which of the four (4) wireline circuits to use for various sys- tem types. Stations equipped with a 4–wire Wireline Interface can support a single 4– wire or a single 2–wire telephone line connection. Note Stations equipped with an 8–wire Wireline Interface can for example sup- port a two 4–wire or a single 2–wire telephone line connection.

  • Page 69: Station Maintenance Connections

    Installation Station Maintenance Connections Table 12 provides a description of the maintenance connections located on the front of the Station Control Module. Table 12. Station Maintenance Connections on the SCM Connector Function Details Name 5/10MHz External 5MHz or 10MHz external External Reference signal reference may be used.

  • Page 70: Post Installation Checklist

    Installation POST INSTALLATION CHECKLIST After the station equipment has been mechanically installed and all electrical connections have been made, power may now be applied and the station checked for proper operation. Applying Power Before applying power to the station, make sure all boards are securely seated in the appropriate connectors on the backplane and that all rf cables are securely connected.

  • Page 71: Verifying Proper Operation

    Installation Verifying Proper Operation Operation of the station can be verified by: • observing the state of the 4 LEDs located on the front panel • listening to audible alarms, and • exercising radio operation. Some station components can become extremely hot during station op- eration.

  • Page 72

    Installation A major failure renders the station unusable. These failure could be caused by one of the following conditions: Rx or Tx synthesizer out of lock PA failure, Sharp (i.e., 10dB) rf power cutback, self test failure A random flashing of the Station Status LED indicates major failure of the Station Control Module;...

  • Page 73: Listening For Audible Alarms

    Installation FailSoft This FailSoft LED indicates the following: LED Color LED State Indicates that the … Yellow Flashing station is in the Trunking system Failsoft mode. This LED is lit when no activity is detected on the transmit data signal from the trunking central controller;...

  • Page 74: Optimization

    After the station is operational, the station’s codeplug data must be copied to a PC- compatible computer. In order to program an MTR2000 station for Trunking operation, kit number RVN4148C (or later) of the RSS must be used. The current ver- sion is available through the U.S.

  • Page 75: Installing Station Hardware Options

    Installation INSTALLING STATION HARDWARE OPTIONS When a station is ordered with an Antenna Relay or External Preselector option, the respective module is attached to the station when delivered. When a station is ordered with an External Double Circulator option, this circulator is provided in a peripheral tray.

  • Page 76: Station Operation

    One set connects to external devices to enable full operation of the station. These are located at the back of the station. • Another set connects to external devices for servicing the station. These are located on the Station Control Module. Motorola Inc., 2005 Government & Enterprise Mobility Solutions 68P81096E38-D All Rights Reserved 06/28/05-UP 1301 E.

  • Page 77: Led Indicators

    Station Operation LED Indicators A set of 4 LEDs is located on the station front panel. The position of the 4 LEDs on the front panel is shown in Figure 1. These LEDs indicate the sta- tus of the station during normal operation. Red/Green Green Yellow...

  • Page 78: External Device Connections

    Station Operation External Device Connections Refer to INSTALLATION, Electrical Connections for the position of the station external connectors and line cord, located on the back panel. A BNC connector on the front of the SCM allows the station to be connect- ed to a 5 MHz or 10 MHz external reference signal.

  • Page 79: Service Connections

    Station Operation Service Connections Service ports and LEDs are located on the front of the Station Control Module (SCM). Figure 2 shows the position of the connectors on the SCM. Front of station with Front Panel removed. 5/10MHz External Service Service Reference Signal Speaker...

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