Motorola MTM800 - Transceiver Front - Pin Function

CONNECTOR PIN FUNCTIONS A - 3
Transceiver Front - Pin Function
Figure A-3 Transceiver Front View to the Enhanced Control Head Interface (12pins) and
Expansion Head Connector (40pins)
Pin Function Description
1 SCI_TX Serial Communication Interface TXD
2 SPEAKER + Analogue Speaker output +
3 SPEAKER - Analogue Speaker output -
4 GND Ground
5 DIG_IN1 (Ext. PTT) This is a digital input to trigger external PTT; active low; non
active high
6 5VD + 5V regulated
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_CONTRO_SV Terminal On/Off Control shared with Enhanced Control Head
request
12 GND Ground
Table A-2 Transceiver Pin Assignment of the Enhanced Control Head Interface (12 pins)
1
40
1
12
12 Pin Connector
40 Pin Connector
1
40
1
12
J0550
12 Pin Connector (Flex)
J0500
40 Pin Connector (Flex)
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6866539D31.book Page 3 Tuesday, March 20, 2007 6:32 PM