READ THIS INFORMATION FIRST
Product: Communications Module
Software version 1.3
Read this document before installing or attempting to use this product.
: This module can be located in a Remote I/O Rack (IC693CHS393A or -399A). Prior
versions of the Communications Module cannot be located in remote racks; they can be upgraded
for this purpose using Upgrade Kit: 44A286397-G03.
: This version of the Communications Module is compatible with PLC CPU models:
IC693CPU311H, -321H, and -331J. Prior versions of the Communications Module are not compatible
with these CPUs; they can be made compatible using Upgrade Kit: 44A286397-G03.
: This module is compatible with any Bus Controller except models IC66*CBB900,
-901, -902E or earlier, or -903E or earlier.
This module is designed for installation on a properly terminated serial bus cable. If the module will
be powered up before installation on a properly terminated bus, connect a 75-ohm resistor across its
Serial 1 and Serial 2 terminals to assure proper powerup.
*IC693CMM301G is the same as IC693CMM301F except User’s Manual is removed
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