RocketPort Universal PCI User Guide
: 2000284 Rev. G
Troubleshooting - 29
Troubleshooting
Using Test Terminal
to Test a Port
Test Terminal (WCom2) allows you to open a port, send characters and commands
to the port, and toggle the control signals. This application can be used to
troubleshoot communications on a port-by-port basis.
The
Send and Receive Test Data
sends data out the transmit line to the loopback
plug, which has the transmit and receive pins connected thus sending the data
back through the Rx line to
Test Terminal
, which then displays the received data in
the terminal window for that port. This test is only testing the Tx and Rx signal
lines and nothing else. A failure in this test will essentially prevent the port from
working in any manner.
The
Loopback Test
tests all of the modem control signals such as RTS, DTR, CTS,
DSR, DCD, and RI along with the Tx and Rx signals.
Note:
This test will fail if set to RS-422 mode on the interface box and is expected
to fail since RS-422 does not have the modem control signals that are
present in RS-232 for which this test is designed.
The following procedure shows how to use
Test Terminal
to send and receive test
data to the serial ports and run a loopback test. If necessary, install the Comtrol
Utility package using
1.
Stop all applications that may be accessing the ports such as RRAS or any
faxing or production software. See the appropriate help systems or manuals
for instructions on stopping these services or applications.
If another application is controlling the port, then
Test Terminal
will be unable
to open the port and an error message will be shown.
2.
From the
Start
menu, select
Programs
>
Comtrol
>
Utilities
>
Test Terminal
(WCom2)
.
3.
Select
File
>
Open Port
, the
appropriate port (or ports)
from the
Open Ports
drop list
and
Ok
.
Note:
If you left Port Monitor
open from the previous
subsection, you should
show that the port is
open.
4.
Install the loopback plug
(
Page 11) onto the port (or
ports) that you want to test.
5.
Select
Port
>
Send and Receive
Test Data
.
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