76
Service Manual Combics
Clamping connectors:
Connection Function
1 Data signal not inverted
2 Data signal inverted
3 Data signal inverted
4 Data signal not inverted
Connector (2-pin):
Connection Function
1 GND
2 +5V (for ext. connection)
Switch Function when switch is closed
SW1-1 Terminating resistor active, together with 1-4
SW1-2 BIAS resistor active, together with 1-3
SW1-3 BIAS resistor active, together with 1-2
SW1-4 Terminating resistor active, together with 1-1
Profibus Option (B1) Interface
Slot for UNICOM interface.
Different interface PCBs are used here for the various device types (CAIS and CAISL). For the
IP44 version, the PCB is used together with the adapter PCB. The adapter PCB is inserted
into the UNICOM interface slot and connected to the PCB via a foil cable.
For the IP69 version, the PCB is inserted directly into the UNICOM interface.
Important!
h
Switch settings must be made when replacing the PCB.
Interface Description | Unicom PCBs
BIAS activated
Completion activated
BIAS activated
Completion
activated
IP69K
IP44
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