Installation manual

72 MTM700/MTM800 Mobile Terminal / Installation Manual INSTALLATION
Part Number: GMKN4072
Length: 65 cm (2.2 feet)
Figure 33 Pin Assignment of Cable from Accessory Connector to Microphone Housing
Expansion Head Radio-to-Adapter for Helmet, External PTT, etc.
Please note that the adapter is a non-Motorola accessory and has to be special configured for the
customer.
Part Number: RKN4077
Length: 3m (10 feet)
Table 16 Colour Assignment of the Cable from Expansion Head -to- Helmet, external PTT, etc.
Pin Colour Function Description
1 BLUE FLT_A+ This voltage is at battery voltage level and is available as long as the
radio is connected to the supply voltage. The maximum current is 300
mA. A fuse in the radio prevents further circuit damage in case of
shorting this pin to ground.
2 WHITE 5V Supply Voltage This voltage (5 volts) is available when the radio is switched on. The
maximum output current is 100mA.
3 ORANGE Radio On / Off Control This is the control head service request input. A level of 5 volts
indicates that the control head needs to communicate with the radio. In
addition it switches on the radio's voltage regulators. The idle state is a
level below 0.6V.
1
3
5 7 9 1 1 1 3
1 5
2 4
6
8 1 0 1 2 1 4
1 6
8
7
6 5
4 3
2
1
6 5 c m ( 2 . 2 f e e t )
1nc
2 MIC_AUDIO (blue)
3 PTT (white)
4nc
5nc
6nc
7 GND (black)
8nc
9nc
10 nc
11 nc
12 nc
13 nc
14 HOOK (red)
15 nc
16 nc
1nc
2nc
3PTT (white)
4 MIC_AUDIO (blue)
5GND (black)
6 HOOK (red)
7nc
8nc
to Accessory
Connector
to Mic Housing