GAI-Tronics MRTI 2000 (No. PL1877A) Microprocessor Radio Telephone Interconnect Installation & Service Manual - Manual (Page 3)

12/10 Publication 43004-019C iii
Table of Contents
FOREWORD ...............................................................................................................................................................1
S COPE OF M ANUAL ....................................................................................................................................................2
N OMENCLATURE ........................................................................................................................................................2
O RDERING R EPLACEMENT P ARTS ..............................................................................................................................2
S ERVICE AND R EPAIR .................................................................................................................................................2
S AFE H ANDLING OF CMOS I NTEGRATED C IRCUIT D EVICES ......................................................................................3
M ODEL C HART ...........................................................................................................................................................4
S PECIFICATIONS .........................................................................................................................................................6
DESCRIPTION............................................................................................................................................................7
G ENERAL D ESCRIPTION ..............................................................................................................................................7
F EATURES OF THE PL1877A M ICROPROCESSOR T ELEPHONE I NTERCONNNECT .........................................................7
INSTALLATION.........................................................................................................................................................9
FCC Interference Warnings..................................................................................................................................9
Equipment Required .............................................................................................................................................9
Cable Installation Safety Considerations .............................................................................................................9
Telephone Line Lightning and Over-voltage Protection ......................................................................................9
Rack-Mount Installation .....................................................................................................................................10
Installation Considerations.................................................................................................................................10
Electrical Interface .............................................................................................................................................10
Power Supply ......................................................................................................................................................11
P1 Radio Connector............................................................................................................................................12
I NTERNAL D IAGNOSTICS ..........................................................................................................................................13
Test 1 – TX Softpot Adjustment ...........................................................................................................................13
Test 2 – DTMF Decode Thresholds ....................................................................................................................13
Test 3 – Mobile-to-Phone Audio Path ................................................................................................................13
Test 4 – Mobile-to-Phone Path 2 ........................................................................................................................14
Test 5 – Mobile-to-Phone Audio Path ................................................................................................................14
Test 6 – Non-accessed Patch Functions .............................................................................................................14
Test 7 – Active Line Swap ...................................................................................................................................15
Test 8 – Network Tone Decoding ........................................................................................................................15
Test 9 – HC11 DSP Communications .................................................................................................................16
Test 10 – HC11 DSP Communications ...............................................................................................................16
Test 11 – TX Audio Port .....................................................................................................................................16
Test 12 – RS-232 Diagnostic ..............................................................................................................................16
Test 13 – DTMF Decode on Un-accessed Phone Line .......................................................................................16
L EVEL S ETTING ........................................................................................................................................................17
Transmitter Audio Level .....................................................................................................................................17
Carrier Detect Adjustments ................................................................................................................................17
Internal Noise-Operated Squelch Adjustment.....................................................................................................18
PC PROGRAMMING ..............................................................................................................................................19
G ENERAL D ESCRIPTION ............................................................................................................................................19
Hardware/Software Requirements ......................................................................................................................19
Communication Port...........................................................................................................................................19
Connections ........................................................................................................................................................19
Installing Programming Software.......................................................................................................................19
IAPS P ROGRAMMING ...............................................................................................................................................20
Editing Screens ...................................................................................................................................................20
I NPUT /O UTPUT .........................................................................................................................................................21
Input/Output – I/O Settings.................................................................................................................................21
Serial Port Setup .................................................................................................................................................22