SEP 2005 MODEL 1000
INSTALLATION AND SETUP
3-60
3.4.4.7 COM4A RS-232/RS-422/RS-485 Configuration
To configure the PCM-COM4A Board for the desired mode of operation, use the following
information.
Each of the 4 serial channels may be configured independently for either RS-232, RS-422, or RS-
485 signal levels. An optional "Chip Kit" (P/N 3-2350-115) is necessary to allow configuration of
a single channel for RS-422 use or up two channels of RS-485 usage. If four channels of RS-422 use
is desired, four (P/N 3-2350-115) Kits will be required. Configuration of each channel consists of
installing and/or removing the appropriate line driver ICs and installing the required jumpers.
Appropriate jumpering, chip installation and the output connector pin out is shown for each of the
channels in each mode.
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