1785-BCM/B

Overview

Allen-Bradley 1785-BCM/B is a PLC-5 Backup Communication Module designed for secure backup and communication between processors and remote I/O.

Power and Installation

• Backplane current: 1.0 A @ 5 V DC

• Power supply: Provided via I/O chassis backplane

• Module location: 1771 I/O chassis (local)

Communication and Connections

• Supports remote I/O connections

• Data Highway Plus (DH+) network connections

• HSSL communication: 1.2 Megabaud

Wiring and Relays

• Keying locations: Between 8–10 and 34–36

• Wiring arm: 1771-WG

• Customer relay: 0.25 A @ 24 V DC (resistive)

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