MITSUBISHI ELECTRONICS AMERICA, INC.
ST200 Series Technical Support Manual
54
January 2000
6.2.6 Power Connection
There are two methods for powering the CTU in a land mobile MT: the power cable that is
included with the MT or the optional cigarette lighter adapter (CLA). The diagrams below show
the CTU power connection and the SZ406A power cable and the SZ604A CLA.
BSU
Conn.
Antenna Unit
Connection
Terminal Port
DTE Port
Power Connector
1
2
4
3
CTU Power Connector
Pin 1
Ground
Pin 2
+12V (Input to CTU)
Pin 3
Horn Relay (Output from CTU)
Pin 4
Ignition Sense (Input to CTU)
Fuse
Fuse
Fuse
Red
+12V
Black
Ground
Green
Horn Alert
White
Ignition Sense
2
1
3
4
SZ604A
Ground
+12V
SZ406A Power Cable and SZ604A Cigarette Lighter Adapter
TU200A Common Transceiver Unit Power Connector