Diagnostic Test For The Rs-232 Interface - GCC Technologies Jaguar IV Series Maintenance Manual

4.1.10 Diagnostic Test for the RS-232 Interface

Check RS-232 ? Up/Down Key
Enter Key Previous/Initial state
Type any characters From
Computer CANCEL
Cancel Key
No => Type any character
Yes
Error or not?
Wait for 3 seconds
from the computer
The message you typed Error Messages
Type any character
from computer
Type character again
Y:ENTER
CANCEL
Note that: Do not press keys too quickly, or it may cause an overrun error
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