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EDACS

CONVENTIONAL NETWORK INTERFACE (CNI)

GETC CONFIGURATION MANUAL

TABLE OF CONTENTS

SPECIFICATIONS* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

SOFTWARE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

RELATED PUBLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

INTERFACE TO EDACS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

CONSOLE PREEMPT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

CHANNEL GUARD MAPPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

MAPPING WITHOUT CHANNEL GUARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

EQUIPMENT REQUIRED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

HARDWARE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Logic Board Modification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Rockwell Modem Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Turbo Board Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

GETC Cable Modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Jumper Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

GETC FIRMWARE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

EPROM Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

TURBO SOFTWARE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Normal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

PERSONALITY PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Programming Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Programming the Personality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

REPEATER PERSONALITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

DIP SWITCH SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

MODEM ALIGNMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

CEC/IMC PERSONALITY CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

LBI-38986

Summary of content (30 pages)

PAGE 1
LBI-38986 EDACS® CONVENTIONAL NETWORK INTERFACE (CNI) GETC CONFIGURATION MANUAL TABLE OF CONTENTS SPECIFICATIONS* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 SOFTWARE REQUIREMENTS . . . . . . . . . . . . . . . . . .
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LBI-38986 TABLE OF CONTENTS - Cont. LED INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 TEST AND ALIGNMENT . . . . . . . . . FUNCTIONAL CHECKOUT . . . . Locally Initiated Call . . . . Multisite Initiated Call . . . . REPEATER ADJUSTMENTS . . . . MASTR II and IIe Repeaters MASTR IIIRepeaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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LBI-38986 SPECIFICATIONS* Input Voltage +13.8 Vdc •20% Current Drain with 9600 Baud Modem 1.5 Amp (typ), 2.0 Amp (max.) Operating Temperature -22°F to +140°F (-30°C to +60°C) Dimensions (H x W) 1.75 x 19 inches (EIA rack mount) (4.5 x 48.3 cm) Repeater Compatibility MASTR II or IIe, all frequency bands MASTR III, all frequency bands Network Interface: 2 & 4 wire circuits (audio and data) Bell Std 3002 grade Data Rate Transmit Level Receive Level 9600 Baud 0.77 Volts rms (0 dBm) 0.
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LBI-38986 Figure 1 - CNI Block Diagram tion stored in the CNI GETC personality EEPROM. When a conventional transmission is received, the GETC decodes the analog Channel Guard tones and associates the tone with an EDACS GID. The inbound Channel Guard tone is defined in the personality EEPROM along with a corresponding GID in the EDACS System.When the CEC/IMC transmits a Group Assignment, the GETC converts the GID to an outbound conventional transmission with its corresponding analog Channel Guard tone.
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LBI-38986 OPERATION NOTE This software is subject to change resulting from improvements or enhancements. When upgrading the softwaare, refer to the accompanying software release notes for software compatibility information. RELATED PUBLICATIONS It may be necessary to consult one or more of the following documents during the installation process. These manuals will also provide additional guidance if you encounter technical difficulties during the configuration process.
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LBI-38986 CHANNEL GUARD MAPPING The CNI GETC performs conversions between Channel Guard tones and EDACS IDs based on mapping information within the CNI GETC’s Personality. Personality refers to the GETC’s region of memory that stores configuration data. Figure 2 - Data Communication The CNI GETC also performs data error detection and correction, general control of timer and I/O functions (DIP switch, LED’s, UART’s, etc.
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LBI-38986 EQUIPMENT REQUIRED 1. Place the GETC shelf in the service position. The following equipment and software may be required to modify and configure the CNI GETC: 2. Disconnect all cables from the GETC Logic Board. 3. Remove the GETC Logic Board 19D904266 from the shelf. Refer to the GETC Service Manual LBI38894 for detailed instructions for removing and installing the printed circuit board in the GETC shelf. 4.
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LBI-38986 Figure 4 - Logic Board (19D904266) Modification Rockwell Modem Installation The Rockwell Modem provides a high speed synchronous serial interface between the CNI GETC and the CEC/IMC’s Uplink. The CNI GETC uses the modem to send and receive serial digital data representing GID information, polling messages, keying messages, and channel assignments. Data transfer rates are typically 9600 bits per second (bps) using 3002 grade four-wire audio lines.
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LBI-38986 2. Isolate the modem from the shelf by installing the eight (8) fiber washers (4035306P25, part of Hardware Kit 344A4019). Insert four (4) washers between the modem and the shelf standoffs and place the other four (4) washers on top of the modem board over the mounting holes. 3. Install three (3) threaded spacers 19B201955P9 in place of the screws omitted when Logic Board was reinstalled. 4.
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LBI-38986 GETC Cable Modifications Use the following procedures to modify and reconnect cables in the CNI GETC. Be sure to follow the correct procedures. Instructions titled MASTR II or IIe are for CNI GETC’s installed in MASTR II or MASTR IIe repeaters, instructions titled MASTR III are for CNI GETC’s installed in MASTR III repeaters only. NOTE Modification of the GETC for use with MASTR II (IIe) and MASTR III repeaters differ.
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LBI-38986 2. Remove the contacts (4) from the header (P26) on the harness 19C337792P1. GETC FIRMWARE INSTALLATION 3. Remove contacts from 19B802401P1, P6-8 and P6-9. This is the GETC Transmit Data pair, see Figure 6. The firmware installation procedure involves installing the latest version of the CNI EPROM (344A3497) into the CNI GETC. 4. Remove contacts from 19B802401P1, P6-6 and P6-7. This is the GETC Receive Data pair. 5.
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LBI-38986 This procedure provides instructions for programming the Turbo Board installed in the CNI GETC. The installation process uses the software diskette 344A4414, an IBM compatible personal computer (PC), and an interconnecting cable (TQ-3360). The PC reads data from the files on the 344A4414 diskette and transfers the data to the Turbo Board microprocessor through connectors J103 and J104 at the rear of the GETC Shelf. Running the "load1e.exe" executable program serially moves data from the "1etop.
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LBI-38986 Figure 7 - CNI GETC (19D904266) Jumper Locations Figure 8 - Turbo Board Programming 13
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LBI-38986 Table 2 - Jumper Settings Jumper setting for CNI GETC (19D904266 ONLY).
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LBI-38986 1. Move switches S2 and S3 to the "run" position (toward the back of the GETC shelf). 2. Press S4 to reset the GETC. 3. The Turbo Board LEDs, D1 and D2, will light indicating the station code is executing. 4. Disconnect the TQ-3360 programming cable upon successful completion of the programming procedure. For additional information on programming the Turbo Board, refer to the Turbo Board Maintenance Manual LBI38822 and Software Release Note SRN-1062.
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LBI-38986 3. Following the instructions in TQ-3357, select the "GE" directory and execute the "GTC" command. After a brief introductory screen, the Current Personalities Screen appears.
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LBI-38986 REPEATER PERSONALITY 5. It may be necessary to reprogram the personality of the MASTR III or IIe repeater. Refer to TQ-3353 (Version 9.0 or later). Select “GETC” from the Control Screen to access the GETC Data Screen. Set S3-1 to Open and S3-2 thru S3-5 to the Closed position. This sets the CNI GETC for operation on channel number 1. 6. Set S3-6 thru S3-8 to the Closed position. This sets the GETC to the normal trunked message mode.
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LBI-38986 Figure 12 - GETC Phone Line Level Adjustments 18
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LBI-38986 Figure 13 - Sample CNI Personality 19
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LBI-38986 CEC/IMC PERSONALITY CONFIGURATION Table 3 - Front Panel LED State Indicators At the System Manager (refer to LBI-38984), configure the CNI groups as TRACKED. This enables the CEC/IMC to route only Wide Area Group Calls to the CNI GETC corresponding to the last conventional CNI transmission. Also use the System Manager to set up the Logical ID’s for the conventional repeaters.
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LBI-38986 2. Verify the CNI GETC LED’s indicate the Idle State (see Table 3), L1 is ON, L2 thru L7 are OFF. (If Narrow Band repeater, L3 is also ON). 3. Initiate a call from the test radio to the console. 4. Verify that the CNI GETC switches to the Conventional Call mode and indicators L1 and L6 turn ON (also L3 for Narrow Band repeaters). This indicates the CNI GETC has decoded the Channel Guard tone and has sent the Group Call Assignment message to the CEC/IMC Uplink GETC 5.
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LBI-38986 Apply an additional 1000 Hz tone at 0 dBm. Verify the output deviation of the transmitter is 3.75 kHz • 100 Hz. If necessary, adjust POT 7, Compressor Gain Pot. 16. Disconnect the signal from the remote audio receive ports (TB1201-2,5). Verify that indicator L2 turns OFF. 17. Re-apply the 1000 Hz tone to the signal generator (removed in step 14) and verify the repeater is now repeating the 1000 Hz tone and 123.0 Hz Channel Guard tone at 3.75 Hz deviation. 18.
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LBI-38986 4. Check CEC/IMC Switch Audio connections. • This refers to audio connections between the CEC/IMC Switch and the CNI GETC or Repeater. Refer to CEC/IMC manual LBI-38662. E & M Signalling voltage or Secur-it tone hold detect (Remote PTT IN, J7-9) A ground (active low) needs to be applied to the GETC when the repeater decodes a 2175 Hz tone or E & M contact closure is used.
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LBI-38986 CEC/IMC Data signals: Repeater Configurations: Data Rate 9600 baud Transmit level 0.77 Vrms • Allows the CNI GETC to key the transmitter. Receive level 0.16 Vrms on J3A-32 (U18A-1) • Transmits Channel Guard Tone generated by CNI GETC. For Four Wire Tone Remote (transmit pair and receive pair), the repeater should be configured in such a way that: • Always routes the received audio to its remote receive pair. • Allows local or remote audio to be transmitted depending on the REM PTT line.
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LBI-38986 TROUBLESHOOTING CHART Figure 14 - CNI Troubleshooting Chart 25
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LBI-38986 INTERCONNECT DIAGRAM Figure 15 - Typical CNI to Conventional Repeater Interface 26
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INTERCONNECT DIAGRAM LBI-38986 MASTR III STATION SIMPLIFIED INTERCONNECT DIAGRAM 27
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LBI-38986 INTERCONNECTION DIAGRAM MASTR II, IIe STATION SIMPLIFIED INTERCONNECT DIAGRAM 28
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INSTALLATION DIAGRAM LBI-38986 CNI GETC SHELF MASTR III INSTALLATION SXCP5T (19D902845, Sh. 30, Rev.
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LBI-38986 INSTALLATION DIAGRAM When installing GETC Panel 19D901868, Mount GETC Panel above Radio housing. If not CNI Application, connect 19C336861P2 sensor to transmit antenna connector. Remove wire from P19-5 on 19C320811 and install in P19-5 on 19C336863. Use Hardware Kit 19A130031G30. For CNI Application, refer to Mod. Instruction 344A3498P1, replace PROM Kit 19A149256 with PROM Kit 344A3497 provided, after tune and test.