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Cisco Wide Area Application Engine 7326 Hardware Installation Guide
OL-6831-02
Chapter 5 Troubleshooting the System Hardware
Symptoms and Solutions
Table 5-18 Serial Port Problems
Symptom FRU or Action
The number of serial ports
identified by the operating
system is less than the number
of serial ports installed.
1. Verify the following items:
a. Each port is assigned a unique address by the
configuration/setup utility program and none of the serial
ports is disabled.
b. The serial port adapter, if you installed one, is seated
properly.
2. Check for failing serial port adapter.
A serial device does not work.
For more information about
the serial port, see the “Serial
Port Connector” section on
page 1-13.
1. Verify the following items:
a. The device is compatible with the WAE.
b. The serial port is enabled and is assigned a unique address.
c. The device is connected to the correct port (see the
“Input/Output Ports and Connectors” section on page 1-11).
2. Check for a failing serial device.
3. Check the serial adapter, if installed.
4. Check the system board.