Specifications

RS485 Forecourt Wiring
Appendix A
Compac Industries Ltd.
Page 72
www.compac.co.nz
RS485 Forecourt Wiring
The following changes are made to standard Compac C4000 wiring to allow
the use of RS485 communication with other devices.
C4000 Power Supply
1. An RS485 Board is fitted inside the Power supply flame proof box.
2. The IS cable pinouts will need to be changed to match the wiring
detailed below.
C4000 IS Cable for RS485 Forecourt