Standard Control Head - Pin Function - Motorola MTM700 Detailed Service Manual

CONNECTOR PIN FUNCTIONS
32 RS232_RTS
33 RS232_DTR
34 RS232_CTS
35 RS232_RX
36 RS232_RI
37 OPTION_DET
38 9V3
39 NC
40 Handset Audio
Table 19 Transceiver Pin Assignment of the Expansion Board Connector (40 pins)

Standard Control Head - Pin Function

Front View to
Microphone
Connector
9 8 7 6 5 4 3 2 1 10
Figure 4 View of the Standard Control Head's Microphone Connector and Flex Cable
Pin Function
1 SCI_TX
2 SPEAKER +
3 Speaker -
4 GND
5 ExP_BD_PTT
6 5VD
Table 20 Pin Assignment of the Standard Control Head Interface Flex Cable (12 pins)
MTM700 Mobile Radio / Detailed Service Manual
Request To Send
Data Terminal Ready
Clear To Send
RX-Data
Ring Indicator
Option Detect; for future applications
Regulated 9V3
Not Connected
Handset Audio to earpiece
*) For Expansion Head Connection only.
Flex
Cable
Pin 1
o
Mode
Description
Serial Communication Interface TXD
Analogue Speaker output +
Analogue Speaker output -
Ground
Expansion Head PTT
+ 5V regulated
Menu
A - 5