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Pump control i/o pcb assembly (c05668), Layout – Gasboy CFN Series Diagnostic Manual User Manual

Page 204

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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.