Motorola MTM800 Installation Manual page 67

INSTALLATION
Telco Connector Pin
1
2
3
4
5
6
7
8
9
10
Back
Connector Function
Pin
1 GPIO_9
2 GPIO_6
3 GPIO_8
4 GPIO_3
MTM800 Enhanced Mobile Terminal Installation Manual
1 10
10-Pin Telco Connector
25-Pi n Back Connector
Figure 30 View of the Enhanced Control Head's rear connectors
Table 15 10-Pin Telco Connector
Function
AUDIO +
SPKR +
BUS +
AUDIO -
SPKR -
GND
ON_OFF_CONTROL
SCI_TX
FLT_A +
GND
Table 16 25-Pin Back Connector
Description
GCAI PIN 2
13
25
Balanced Audio + (Bidirectional)
Serial Bus, Data sent from the Enhanced Control Head
Balanced Audio - (Bidirectional)
Serial Bus, Data sent to the Enhanced Control Head
GPIO
GPIO
GPIO
1
14
Description
Speaker +
Speaker -
Ground
Radio Turn-On Signal
Supply voltage
Ground
Default
Output: Active for duration of call (car
radio mute)
PTT Input, TX audio from
MIC_REAR_2
Disabled
PTT Input, TX audio from
MIC_REAR_1
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