ABB S800 I/O - Power Supply

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An I/O Station with redundant CI820 FCIs requires that the ModuleBus Extension
cable be connected to the TB815 Interconnection Unit and then to the first I/O
Module. The maximum ModuleBus length from the TB815 to the ModuleBus
terminator is 2.5 meters. See Figure 3-4 for layout of a station.
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I/O clusters 1-7 connect to the Optical ModuleBus port on the FCI or TB815
Interconnection Unit by Optical Expansion cables. Each I/O station can have up to
24 I/O modules and each I/O cluster can have up to 12 I/O modules. The 24V power
supply has to be connected to each cluster. See Figure 3-5 for an example of optical
ModuleBus Expansion cabling.
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Cable adaptor, in
TB806
Terminator
TB807
TK801V0xx
CI820 FCI
TB815
Interconnection
Unit
Cable adaptor, out
TB805