The Emerson PAC8000 Railbus Isolator is required when using any 2/1 modules in a node. The unit provides galvanic isolation between those modules interfacing to Intrinsic Safe field wiring on the 2/1 side of the isolator and those with conventional wiring on the 2/2 side. The unit mounts on its dedicated Railbus Isolator Carrier 8725-CA-RB.
Note: System Power is not passed from one side of the Railbus Isolator to the other, so System Power on the 2/1 side must be supplied by IS System Power Supplies.
These additional components are required for the operation of your product. We strongly advise you to purchase these components unless you already own them or own a suitable alternative.
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