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CHAPTER 2: Introduction
With the High Speed COS-4 or High Speed COS-8, you can send a code
sequence from an asynchronous RS-232 device and switch between four or
eight other such devices. By using this electronic method to switch, you
avoid the problems that can occur (especially with laser printers) when you
switch manually. You can select any two-byte sequence as the “arming code”
(the code that causes the COS to switch).
The High Speed COS-4 and COS-8 have three modes of operation, which
you can choose between with the slide switch on the front panel. In Text
mode, the user can send the chosen arming code, followed by the ASCII
character corresponding to the desired port (from “1” to “4” or “8,” or “0”
for no port, or “9” for all ports), immediately following other data. In
Graphics mode, the arming code and port character are not recognized
unless they are preceded by a pause. (You can select the length of this
pause.) In Transparent mode, arming codes are not recognized and
switching does not occur; arming codes will be passed through the COS
until it is set to a different mode.
2. Introduction
Summary of Contents for High Speed COS-4
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