Compac CNG User Manual

Electrical Drawings and Component Details
C4000 Power Supply Board
Compac Industries Ltd.
Page 95
www.compacngv.com
Comms Dipswitches
Dipswitch SW3 on the C4000 Power Supply sets the comms for either the
Compac or Gilbarco protocol.
Locate the dipswitch settings as shown in the diagram below, depending on
which protocol is adopted.
In addition to setting the dipswitches, the Gilbarco protocol
requires an interface PCB, as well as special software and wiring
configuration. The C4000 IS Cable Connections section (see page 114)
contains the Gilbarco wiring configurations.
ON
1 2 3 4
ON
1 2 3 4
COMPAC COMMS
1 - ON
2 - OFF
3 - ON
4 - OFF
GILBARCO PROTOCOL
1 - ON
2 - OFF
3 - ON
4 - OFF
REQUIRES INTERFACE
PCB,
SPECIAL SOFTWARE,
& WIRING
Triac Snubber Switches
Triac snubber switches are used to switch different snubber circuits across
the solid state relays. On CNG Dispensers, these (SW1, SW2, and SW4)
must always be set to low current output (2).

Compac CNG Specifications

General

Brand	Compac
Model	CNG
Category	Dispenser
Language	English