MTU 12 V 2000 P12 Operating Instructions Manual page 36

Function
1 Transmission channel 1
SCB 3 is equipped with two serial transmission channels routed to the terminal strip of the PIM.
The software of the relevant processor printed circuit board determines which interface is active on which
transmission channel. Only one interface may be active for any one transmission channel.
• Transmission channel 1
is equipped with a connection for a serial RS422 interface and a serial RS232 interface.
The RS232 interface is connected via the terminals of the PIM or by a connector.
When connected by the connector, the terminals of the RS232 interface are automatically switched
off.
• Transmission channel 2
is equipped with a connection for a serial RS422 interface and a serial RS232 interface.
Data processing and interface driver control (baud rate) depend on the processor printed circuit board
used.
With processor printed circuit board MPU 23:
• Fixed 9600 kBd
With processor printed circuit board MPU 27 (project-dependent):
• 4800 kBd
• 9600 kBd
• 19200 kBd
Terminal assignment
Relationship between SCB 3 and the terminals of the PIM.
Connection terminal
n01
n02
36 | General Information | MS150025/02E 2012-10
2 Connector
Name
Channel 1: O1 of RS422 interface
Channel 2: O1 of RS422 interface
3 Module housing with
SCB 3