General Information
All of these radios belong to the same family and are covered under the same service manual, hence, most of the information should be common to all models.
BEWARE: Take note of the following we received, "It seems after attempting to write the codeplug of a NEW MCS2000, I got a fail message on the screen. It corrupted the codeplug and this brand new radio had to be sent back to the big M. I talked to the local Motorola dealer and they said that programming these radios with older RSS than they had last been programmed with would indeed corrupt the codeplug".
Pinout for the CS Option Connector
1 A+ CONT 2 +5V 3 2.1 MHz 4 GND 5 DISC 6 9.3 7 AFIC PRE-EMP OUT 8 ASFIC MIC AUD OUT 9 AUX RX IN1 10 UNIV IO 11 GND 12 RESET 13 C CTRL HD2/O KEYFAIL 14 AUX TX IN1 15 RX DATA/KID 16 RTS/DVP WE 17 CLK 18 SPI TX DATA 19 MISO 20 O JABBA INT/C DTMF DATA RDY 21 O JABBA SEL/C DTMF SEL 22 ASN INT/OPT TX 23 ASN SEL/OPT CTSB 24 N/C 25 RSSI
Pinout for the SS Option Connector
1 A+ CONT 2 +5V 3 2.1 MHz 4 GND 5 DISC 6 9.3 7 AFIC PRE-EMP OUT 8 ASFIC MIC SUD OUT 9 AUX RX IN3 10 UNIV IO 11 GND 12 RESET 13 C CTRL HD2/O KEYFAIL 14 AUX TX IN3 15 RX DATA/KID 16 RTS/DVP WE 17 CLK 18 SPI TX DATA 19 MISO 20 O JABBA INT/C DTMF DATA RDY 21 O JABBA SEL/C DTMF SEL 22 ASN INT/OPT TX 23 ASN SEL/OPT CTSB 24 N/C 25 RSSI
Pinout for the Accessory Connector
1 SPKR+ 2 INT SPKR+ 3 SPKR- 4 DIGITAL GND 5 BUSY 6 BUS+ 7 I/O 8 8 I/O 5 9 EMERGENCY 10 ANALOG GND 11 FIL AUD OUT 12 AUX RX IN2 13 MIC IN 14 SW B+ 15 IGNITION 16 I/O 2 17 LH RESET 18 BUS- 19 SCI RX DATA 20 I/O 4 21 I/O 3 22 RSSI OUT 23 EXTERNAL MIC IN 24 AUX TX IN2 25 UNIV IO OUT
Pinout for the Control Head Connector
1 INT SPKR+ 2 INT SPKR+ 3 MON/BUSY/OPEN LH RESET 4 PTT/BUS- 5 CLK 6 SPI TX DATA 7 GND 8 RX HI 9 MIC IN 10 C CTRL HD1/O DVP WE 11 C CTRL HD2/O KEY FAIL 12 C CH EN/O KID 13 C VOLUME/O GND 14 C OPT SW B+ SENSE/O BUSY 15 AUX/BUS+ 16 +5V 17 PWR ON 18 SW B+
Pinout for the Microphone Connector
1 OPT SW B+ 2 SPKR- / KEY LOAD 3 MON / BUSY / KID 4 GND 5 MIC / ON-OFF 6 PTT / BUS- / /WE 7 AUX / BUS+ / KEYFAIL 8 SPKR+ / HANDET AUDIO
Pinout for the Hand-Held Control Head Cable
Radio Connector Description Control Head 18 Pin 15 Pin 1 SPKR+ 8 2 SPKR- 7 3 HUB 6 4 PTT 2 5 SPI CLK 13 6 SPI DATA 1 7 DIG GND 3 8 N.C. 9 MIC 11 10 A1 4 11 A2 5 12 N.C. 13 WIPER 10 14 N.C. 15 N.C. 16 +5V 15 17 A+ 12 18 SW B+ 9
Out Of Band Information
Out of band for the GM900/MC2100/MCS2000 is similar to the MTSX out of band hacks.
Pinout for the Accessory Connector Programming Cable
Pinout for the Microphone Connector Programming Cable
