2.5 I/O Terminal Unit
I/O terminal unit (Primary unit)
8-point input (AFP87421) 8-point input (AFP87423)
16-point input (AFP87422) 16-point input (AFP87424)
Expansion I/O terminal unit
8-point input (AFP87425) 8-point input (AFP87427)
16-point input (AFP87426) 16-point input (AFP87428)
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