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Serial Port Problems (continued)
Ensure proper
default serial
port
configuration
Serial port
works OK?
Can you
eliminate all
potential software
conflicts?
Eliminate
software
conflicts
Serial port
works OK?
Plug another
device and cable
into serial ports
Serial port
works OK?
Done: Suspect
original device or
cable bad
Done: Suspect bad
OB base unit serial
port
A
Done
Done
Yes No
No
No
No
Yes
Yes
Yes