CODE OPERATED SWITCH II
After you have hit a key, the screen will change to:
Serial Port Test
The Serial Port Test is a loopback test that checks
whether data is being correctly transmitted and
received on any port. The test also checks, using
DTR/CTS/RI or RTS/DCD, whether the box can
loop back control leads correctly. To use this test,
you will need to jumper Pins 2 and 3. To test
DTR/CTS/RI and RTS/DCD, you’ll need to
jumper Pins 20, 5, and 22 together, and jumper Pins
4 and 8 together.
Interrupt Test
The Interrupt Test checks the interrupt circuitry of
the unit. During this test, the letter “A” will appear
on screen. A message will indicate whether the test
was successful.
All Tests
If you request All Tests, the COS-II will run all the
listed tests in sequence.
INTERRUPT TEST IN PROGRESS
A
INTERRUPT TEST PASSED
SERIAL PORT TEST (EXPANSION BOARD IS NOT INSTALLED)
PORT# DATA DTR/CTS/RI RTS/DCD
MASTER * FAILED FAILED
PORT 0 FAILED FAILED FAILED
PORT 1 FAILED FAILED FAILED
PORT 2 FAILED FAILED FAILED
PORT 3 FAILED FAILED FAILED
SERIAL PORT TEST FAILED
20
