Pin Subd Connector - Motorola MTM800 FuG Installation Manual

PIN Function
8 SCI_TX
9 FLT_A+
10 Analog Ground
5.4.2

25-Pin subD Connector

Data Expansion Head Enhanced:
Turn the radio ON/OFF using the Ignition Sense Cable PMKN4120_. Connect the PMKN4120_ cable
to Pin 10 on the rear side Accessory Connector.
Table 51: 25–Pin subD Connector Pins
PIN Function
1 GND
2 RS232_SCI_TX
3 RS232_SCI_RX
4 RS232_RTS
5 RS232_CTS
6 FLT_A+
7 Signal_GND
9 Not Connected
10 Not Connected
11 Not Connected
12 SW_B+
13 Not Connected
14 ON_OFF_CONTROL /
FLASH_MODE
15 Not Connected
16 INT_MIC
17 Not Connected
18 Not Connected
19 GROUND
Send Feedback
Description
municate with the radio. In addition, it switches on the voltage
regulators of the radio. The idle state is a level below 0.6 V.
This if for communication between the radio and the Enhanced
Control Head.
This voltage is at battery voltage level and is available as long as
the radio is connected to the supply voltage. The maximum cur-
rent is 300 mA. A fuse in the radio prevents further circuit dam-
age in case of shorting this pin to ground.
Analog Ground
Description
Ground
Transceive data (RS232 line with RS232 level)
Receive data (RS232 line with RS232 level)
Request to Send (RS232 line with RS232 level)
Clear to Send (RS232 line with RS232 level)
Filtered unswitched UB+ / 200 mA
Ground for RS232
NC
NC
NC
Switched UB+ / 100 mA
NC
• Switch into flash mode (connect Pin 14 with 6)
• On/Off control for Standard Control Head
NC
Microphone analogue input of 80 m VRMS, 600 ohm impedance,
9 V
NC
NC
Ground
Chapter 5: Connectors and PIN Assignment
68015000553-KC
Table continued...
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