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MITSUBISHI ELECTRONICS AMERICA, INC.
ST200 Series Technical Support Manual
37
January 2000
c.
Connect the interface cable to the CTU, and use standard screws (M5x20 self-tapping
screws) to secure the CTU. Secure the interface cables so that they can not be
damaged from normal day-to-day operation (securing materials are not included).
6.1.6 Power Connection
The ST221M fixed site MT includes the PUP-55-13-J9 power supply. The diagrams below
explain the power connections for the CTU and the power supply.
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)