Installation manual

66 MTM700/MTM800 Mobile Terminal / Installation Manual INSTALLATION
9-Pin subD Connector
The pin assignment of this 9 pin SubD connector will follow the requirements of an RS232 standard
interface with RS232 voltage level. The cable (see section „Connecting Cables“) which has to be
used is a standardized serial interface cable which allows to connect a data device with an RS232
Interface such as e.g. PC, Laptop, console etc.
21 Motorcycle
ON/OFF
On / Off control for Motorcycle Control Head
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 connected 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
Table 13 9-Pin subD Connector
Pin Function Description PC direction
1 DCD Data Carrier Detect Input
2 RXD Received Data Serial IN
3 TXD Transmitted Data Serial OUT
4 DTR Data Terminal Ready Output
5 Ground Ground
6 DSR Data Set Ready Input
7 RTS Request to Send Output
8 CTS Clear to Send Input
9 RI Ring Indicator Input
Table 12 25-Pin subD Connector
Pin Function Description