Gasboy CFN Series Diagnostic Manual - Manual (Page 204)

GASBOY CFN Series
6-14 12/26/02
PUMP CONTROL I/O PCB ASSEMBLY (C05668)
The Pump Control I/O PCB assembly acts as the interface between the pump control unit and the
outside world. This assembly:
•
provides terminal block wiring and optical isolation for the pulser inputs
•
provides terminal block wiring and optical isolation for the switch detect inputs
•
provides terminal block wiring and protection for the RS-422 circuits
•
provides a protected output for the RS-422 circuit (used when the pump control is in an ICR
post)
Layout
(shown without plate)
This drawing shows the Pump
Control I/O PCB orientation in the
pump control unit.