Table of Contents
Advertisement
PIN
Function
7
Radio On/Off Control
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 52: 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
Send Feedback
Description
This is the Enhanced Control Head service request input. A level
of 5 volts indicates that the Enhanced Control Head needs to
communicate with the radio. In addition it switches on the radio's
voltage regulators. The idle state is a level below 0.6V.
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 300mA. A fuse in the radio prevents further circuit damage
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
Chapter 5: Connectors and PIN Assignment
68015000181-LB
Table continued...
99
Advertisement
Table of Contents
