APPENDIX A
PC COM DIAGNOSTIC UNDER MS/DOS
The PCCOMQC program provides a
diagnostic routine to test your PCCOM ISA bus 2 port serial adapter
under MS/DOS. It provides internal and external loopback tests. A
loopback plug must be connected to each port being tested, and you can
select different signal's connection to test communication signals from
hardware configuration function.
To test your PCCOM 2 port adapter under MS/DOS, please type
A>PCCOMQC
(A> means system prompt)
* Then select "PCCOM/ ISA 2 port RS232" item.
(A> means system prompt)
* Then select "PCCOM/ ISA 2 port RS232" item.
The hardware configuration is shown in the following.
