AB | 1785-BEM | Backup Communications Expansion Module

The 1785-BEM uses a copper wire with 26–14 AWG size as conductors, and it comes with the 1771-CD cable connector for DH+ and Remote I/O (RIO) communication. It has an HSSL communication speed of about 1.2 Mega Baud and it has a factory-built 0.25A relay at 24V DC (resistive). Keying to the backplane is achieved by a connection between pins 8 and 10 and pins 34 and 36 of the backplane top connector and it is CE, UL, and CSA-certified. The 1785-BEM has a factory-designated operating temperature range between 0 and 60 oC (32 and 140 oF) at a humidity range of 5-95% without condensation, and it has a storage temperature range of -40-85 oC (-40-185 oF).

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