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Ethernet RS-232/422 COM Module Crestron CEN-COM

• Provides character pacing in units of milliseconds for all of the data

specified. The range of the pacing is from 1 to 31 milliseconds. Pacing

greater than 31 milliseconds defaults to the maximum (31 ms).

• Supports RS-485. However, a specific protocol for defining the

mechanism as to when a device is permitted to transmit on the RS-485

bus must be followed. To use this feature, use RS-422 communications

settings. Set hardware handshaking to none. The RTS output can now

be used to enable the transmitter. Notice that the receiver is always

active. Therefore, transmissions are also received.

Physical Description

The CEN-COM is housed in a black enclosure with silk-screened labels on the front

and rear panels. On the front of the unit there are 13 LEDs for indicating the unit’s

current status. All connections, except for the Ethernet connection, are made on the

back of the unit. Refer to the physical views shown below. There are four rubber feet

on the base of the unit for stability and to prevent slippage.

CEN-COM Physical Views

2 • Ethernet RS-232/422 COM Module: CEN-COM Operations Guide - DOC. 5719

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