CONNECTOR PIN FUNCTIONS A - 9
Motorcycle & Remote Mount Connection - Pin Functions
Figure A-7 Front View of the Motorcycle Enhanced Control Head
16 Internal Mic Audio This input depends on radio programming mode. This microphone sig-
nal is independent of the microphone signal on the accessory connec-
tor. The nominal input level is 80 mV. The DC impedance is 660 ohms
and the AC impedance is 560 ohms.
17 SB9600-Reset This output can be used to reset a SB9600 device.
18 NC Not Connected
19 GROUND Ground
20 IGNITION The radio can be switched on by connecting this pin with pin 6 (FLT A+).
As long as both pins are connected, the radio will be switched on.
21 ON/OFF On/Off control.
22 EXPANSION-
PTT
When this input is used to key up the transmitter, the internal Mic Audio
input (pin 16) is selected.
23 SB9600_SW This input is intended to switch the 4 wire RS232 interface into SB9600
mode. The radio must be switched off and then this input must be con-
nected to pin 6 (FLT A+). When the radio is switched on again, the 4
wire RS232 interface will be disabled and the SB9600 mode will be
active.
24 HANDSET_AUDIO This is a low power audio output primarily intended for a connected
handset. the Dc level is 4.6 V and the AC level depends on the volume
setting.
25 NC Not Connected
Pin Function Description
Table A-8 Pin Assignment of the 25 Pin subD Connector of the Data Expansion Head Enhanced
6866539D31.book Page 9 Tuesday, March 20, 2007 6:32 PM
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