Perle Systems 5500036-17 User Manual
RIO Remote I/O System User Guide
Windows NT troubleshooting
Windows NT troubleshooting
Page 303
COM ports are not accessible
RIO NT driver is operating satisfactorily but then fails
Symptom
Action required
A window entitled
Service Control
Manager
is displayed with the message:
At least one service or driver failed
during startup. Use Event Viewer to
examine the event log for details.
during startup. Use Event Viewer to
examine the event log for details.
1. Check the Windows NT Event Viewer; you
will see actions suggested to you.
2. Run Windows NT Diagnostics to find
available IRQ and memory addresses.
(You may need to reserve settings in the
BIOS setup).
(You may need to reserve settings in the
BIOS setup).
3. Alternatively, test the card with the RIO
Hardware Diagnostics program. See
.
Symptom
Action required
None
1. Run the RIOCONF configuration utility.
2. If a picture of the RTA is shown with the host card;
a. Check that the RTA is connected to the host card
with a solid green line.
b. If no line is displayed try power-cycling the RTA.
Failing this, try re-booting the system.
c. If the line has still not changed try re-installing the
driver.
d. Once a green line is displayed, configure the RTA
to set the COM device names for the system.
3. If no picture of an RTA is shown with the host card;
a. Check connection of RTA link cable.
a. Check power to the RTA, and power cycle unit.
b. Reinstall the driver.