Com ports are not accessible – Perle Systems RIO 5500036-17 User Manual

Page 303

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RIO Remote I/O System User Guide
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.

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).

3. Alternatively, test the card with the RIO

Hardware Diagnostics program. See

Testing RIO host cards with the
Hardware Diagnostics program

on

page

312

.

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.

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