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Compac CNG User Manual

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Electrical Drawings and Component Details
C4000 Microprocessor Board
Compac Industries Ltd.
Page 109
www.compacngv.com
RS485 Wiring
Connecting RS485 equipped dispensers to controller.
Wiring typically uses 3 cores of a 4 core SWA two twisted pair cable
connected to the terminals on J12 named TXDP, DTRB and GNC inside the
C4000 box. If connecting multiple dispensers, always wire them in parallel.
At the site controller, the terminals may be named: RS485A = TXDP and
RS485B = DTRB. GND = Ground or Earth.
The C4000 box contains mains voltage power. Always isolate
before removing the lid.

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Compac CNG Specifications

General IconGeneral
BrandCompac
ModelCNG
CategoryDispenser
LanguageEnglish

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