INSTALLATION MTM5400 Mobile Terminal Installation Manual 65
Connector and Pin Assignment of the Enhanced Control Head
Figure 28 View of the Enhanced Control Head’s Mobile Microphone Port Connector and Flex Cable
The keypad labelling of the control head may vary
according to the specific customer/country concerns.
Table 13 10-Pin Mobile Microphone Port (MMP) Connector
Mobile Microphone
Port Pin
Default
Functions
Alternative
Functions USB Functions RS232 Functions
11-WIRE 1-WIRE 1-WIRE 1-WIRE 1-WIRE
2 GPIO_3 PT T GP Input or Output GP Input or Output RS-232-RTS
3SPEAKER SPEAKER SPEAKER SPEAKER SPEAKER
4 GPIO_2 GPIO_2 INPUT GP Input or Output DATA - RS-232-RXD
5GND GND GND GND GND
6OPT 5V HIGH Impedance OPT 5V VBUS OPT 5V
7MIC + MIC + MIC + MIC + MIC +
8 GPIO_1 GPIO_1 INPUT GP Input or Output DATA + RS-232-TXD
9 GPIO_4 HOOK GP Input or Output GP Input or Output RS-232-CTS
10 GPIO_0 GPIO_0 INPUT GP Input or Output,
PWR ON
GP Input or Output,
PWR ON
GP Input or Output,
PWR ON
oPin 12
Flex
Cable
21
3
7
910
8
4
56
Front View of the Mobile
Microphone Port (MMP)
Connector