Gasboy CFN Series Diagnostic Manual - Manual (Page 381)

CFN Islander
12/26/02 13-13
Islander satellite readers have only one RS-485 junction box board.
RS-485 – Islander Satellite Communications TB1 – junction box board
Pinout Pin Function Voltage
1 RS-485 Tx+
2 RS-485 Tx-
To
Islander
 +5 VDC signal
between pins 1 & 2
3 RS-485 Rx+
4 RS-485 Rx-
From
Islander  +5 VDC signal
between pins 3 & 4
5 Ground Ground
If the Islander contains Pedestal Pump Control Units, all pump wiring connections are made to
the Pump Control Unit terminal blocks. See Wiring in section 6 of this manual for a pinout and
description of these terminal blocks.