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HIGH SPEED COS-2
5.3 The Self-Test
To have the High Speed COS-2 perform a quick self-test, turn it off and set
position 6 of its right-hand DIP switch to ON (up). Connect port “B” to a
terminal or other RS-232 device whose data rate and data format match
those selected on the COS-2. Turn the COS-2 back on: SELECT LEDs “B”
and “C” will flash back and forth ten times. (In the unlikely event that they
do not flash back and forth, you might have a problem with your unit. If
the LEDs consistently fail to flash when you turn the unit ON, contact your
supplier for technical support.) The COS-2 will begin continuously
outputting a “barber pole” pattern of ASCII characters to the RS-232 device
connected to port “B.” To return to normal operation, turn the COS-2 off
again, disconnect the RS-232 device from port “B” and reconnect the
original equipment, set position 6 of the COS-2’s right-hand DIP switch to
OFF (down), and turn the COS-2 back on again.
Summary of Contents for COS-2
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