Installing and connecting
7
Example:
Network across several buildings with CAN bus converter CAN-BC2
Key to symbols:
… Device with its own power supply (UVR16x2, RSM610, UVR1611)
… Device is supplied by the bus (CAN I/O, CAN
-
MT, …)
… CAN bus converter (CAN
-BC2)
… Terminated (e
nd devices)
… Open termination
… CAN bus surge arrester
... Gas discharge arrester for indirect earthing
e.g. CAN-UES, CAN-UES2
With CAN bus surge arresters:
The screen of the
disconnected
network is connected to CAN bus
earth (GND) for each bus converter. This screen must
not
be
directly
earthed.
The CAN bus converter is similar to a repeater. It receives CAN bus signals and passes them on. Each
cable run on either side of the CAN bus converter must therefore be viewed as an independent CAN
bus network.
Max. cable length:
Subject to bus rate set in the
disconnected
network (CAN bus 2)
Indirect earthing
Indirect earthing
Indirect earthing
optional
