Rs-485 pcb (c05683), Layout, Connectors – Gasboy CFN Series Diagnostic Manual User Manual
Page 136: P3 - rs-485 signals to cpu pcb (protected)
GASBOY CFN Series
4-20
03/19/04
RS-485 PCB (C05683)
The RS-485 PCB provides the interface for the RS-485 section of the CPU PCB. This PCB:
•
provides the terminal block for field wiring of the RS-485 lines or wiring from the pedestal
pump control unit
•
provides protection against noise on the RS-485 lines
Layout
NOTE: Colors shown below are for ICR mounted on pedestal PCU post. If ICR is mounted on
non-pedestal PCU post, the field wiring colors are unknown.
Connectors
TB1 - RS-485 Wiring: Protected Pedestal PCU, Unprotected Non-Pedestal PCU
P3 - RS-485 Signals to CPU PCB (Protected)
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