General Information
If you are looking for the programming cable pinout, click here.
If you want to connect a Zetron Model 38/45 to a MTR2000, you will need Motorola P/N CDN6351 (Zetron P/N 702-9895A). The schematic of this cable is available here.
The pinout of some of the connectors on the backplane are:
J6 - Wireline Terminals Pin Signal 1 Line 1- 2 Line 1+ 3 Line 2- 4 Line 2+ J7 - Trunking/MRTI Connector Pin Signal 1 MRTI TX Audio 2 Trunk MRTI /PTT 3 Spare 4 MRTI /Monitor 5 Spare 6 Spare 7 MRTI RX Audio 8 /Patch Inhibit or RSTAT 9 GND 10 /Aux Carrier or TSTAT 11 Trunk MRTI /PTT 12 /Aux Carrier or TSTAT 13 Trunk TX Data+ 14 Spare 15 MRTI /RX Carrier 16 GND 17 GND 18 GND 19 GND 20 Spare 21 Trunk TX Data- 22 Trunk RX Audio 23 Trunk /Mute 24 /PL Strip or /CCI 25 /Patch Inhibit or RSTAT P7 - PA Control Connector Pin Signal 1 Voltage Forward 2 /PA Enable 3 PA Reset 4 V Control 5 GND 6 /PA D/A CS 7 SPI CLK 8 MOSI 9 MISO 10 /PA A/D CS P8 - Power Supply Connector Pin Signal 1 GND 2 GND 3 14.2VDC 4 14.2VDC 5 AC Fail 6 GND 7 5VDC 8 5VDC P10 - Antenna Relay/PTEMP+ Connector Pin Signal 1 Antenna Relay 2 14.2VDC 3 PTEMP+