The board supported 10 user selected communication channels, including RS-232, RS-422, and RS-485. The on board, high speed processor and true dual-port RAM offered a simple and powerful interface to the board. The board operated independently of the host computer, reducing the need for host intervention.
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</b />The EXC-Serial-PC/xx was supplied with C drivers, including source code, and Mystic Windows Software.
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</b />A half size version of the board (see picture) supported four channels.