Transceiver Front - Pin Function - Motorola MTM800 User Manual

CONNECTOR PIN FUNCTIONS

Transceiver Front - Pin Function

Figure A-3 Transceiver Front View to the Enhanced Control Head Interface (12pins) and
Pin Function
1 SCI_TX
2 SPEAKER +
3 SPEAKER -
4 GND
5 DIG_IN1 (Ext. PTT)
6 5VD
7 HANDSET_AUDIO
8 BUS +
9 INT_MIC
10 FLT_A +
11 ON_OFF_CONTRO_SV
12 GND
Table A-2 Transceiver Pin Assignment of the Enhanced Control Head Interface (12 pins)
12 Pin Connector
12 1
1
40
. . . . . . . . . . . . . . . . . . . . . . . . .
40 Pin Connector
J0550
12 Pin Connector (Flex)
12
. . . . . . . . . .
1
J0500
40 Pin Connector (Flex)
Expansion Head Connector (40pins)
Description
Serial Communication Interface TXD
Analogue Speaker output +
Analogue Speaker output -
Ground
This is a digital input to trigger external PTT; active low; non
active high
+ 5V regulated
Handset audio
Either SBEP or Serial Communication Interface RXD
Microphone input
Filtered A+
Terminal On/Off Control shared with Enhanced Control Head
request
Ground
1
40
A - 3