Bosch Rexroth IndraControl VCP 20.2 - Termination; Fig. 7-8: Block Diagram Termination RS422; RS485; Fig. 7-9: Resistance Values Termination RS422; RS485; Fig. 7-10: Termination Switch

7-6 Bosch Rexroth AG | Electric Drives and Controls Rexroth IndraControl VCP 20 | R911310381 / 02
Interfaces
7.2.1.2 Termination
For point-to-point connections, always activate the termination. For
multi-point connections, only activate the termination at the cable end.
Fig. 7-8: Block diagram termination RS422 / RS485
Legend for table:
I=Switch ON
-=Switch OFF
Designation Value
R1, R3 510 Ohm
R2 150 Ohm
R4 120 Ohm
Fig. 7-9: Resistance values termination RS422 / RS485
The switch positions for ON or OFF are printed onto the termination
switch. Only the specified switch positions are permitted.
S1 S2 S3 S4 Function
Transmitter Receiver
I I I I Termination is ON
– – – – Termination is OFF
Fig. 7-10: Termination switch
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