Gasboy CFN Series Diagnostic Manual - Manual (Page 402)

CFN Islander
13-34 12/26/02
RS-485 CONNECTION PCB (C06646)
The RS-485 connection PCB:
•
provides connections for the RS-485 island loop internal to the Islander
Layout
Connectors
P1 & P2 - RS-485 Signals to Site Controller
Pinout Pin Function Voltage
1 RS-485 Rx+
2 RS-485 Rx-
To
Islander  +5 VDC signal
between pins 1 & 2
3 RS-485 Tx+
4 RS-485 Tx-
From
Islander  +5 VDC signal
between pins 3 & 4
P3 – RS-485 Signals to island card reader CPU PCB and disable pump PCB.
Pinout Pin Wire Function Voltage
1 Red RS-485 Tx+
2 Green RS-485 Tx-
To Islander (Site
Controller) CPU
 +5 VDC signal
between pins 1 & 2
3 White RS-485 Rx+
4 Black RS-485 Rx-
From Islander (Site
Controller) CPU
 +5 VDC signal
between pins 3 & 4
5 N/C