A - 6 MTM700 Mobile Radio / Detailed Service Manual CONNECTOR PIN FUNCTIONS
7 Handset_audio Handset audio
8 BUS + Either SBEP or Serial Communication Interface RXD
9 Int_Mic Microphone input
10 Flt_A+ Filtered A+
11 On_Off_Control_SV Radio On/Off Control shared with Control Head request
12 GND Ground
Pin Function Description
1 FLT A+ Filtered A+
2 5V + 5V regulated
3 Hook Microphone off-hook signal
4 Ground Ground
5 Mic. High Microphone analogue audio input
6 PTT / IR decoder PTT or IR-Decoder PTT
7 BUS + SBEP bus
8 Handset audio Handset audio
9 Analogue input 3 Keypad Mic. Control
10 Analogue input 2 Keypad Mic. Control
Table 21 Pin Assignment of the Microphone Connector of the Standard Control Head
Table 20 Pin Assignment of the Standard Control Head Interface Flex Cable (12 pins)
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