Paradyne 3151, Руководство оператора

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7. Monitoring and Troubleshooting
7-12
March 2001 3150-A2-GB24-10
Alarms
The CSU can be attached, either locally or remotely, to an ASCII terminal or
printer to display or print alarm messages. Alarms can also be displayed on a PC
that is using a terminal emulation package.
For standalone CSUs, you can route these alarms to the MODEM port, the COM
port, or both. For carrier-mounted CSUs, you can route them to the COM port or
dial them out using an external device.
Each alarm message contains a customer identification to indicate which remote
CSU is reporting an alarm. For information about customer identification, refer to
Displaying Unit Identity in Chapter 3, Using the Front Panel .
Possible alarm messages are as follows:
„
Alarm Cleared. Alarm Indication Signal at the x Interface
(where
x
is either Network or DTE).
„
Alarm Cleared. An Excessive Error Rate at the Network
Interface.
„
Alarm Cleared. Loss Of Signal condition at the x Interface
(where x is either Network or DTE).
„
Alarm Cleared. Out Of Frame condition at the x Interface
(where x is either Network or DTE).
„
Alarm Cleared. Yellow Alarm signal at the x Interface
(where x is either Network or DTE).
„
Alarm Indication Signal received at the x Interface
(where x is either Network or DTE).
„
An Excessive Error Rate has been detected at the Network
Interface.
„
Continuous Loss Of Signal detected at the x Interface
(where x is either Network or DTE).
„
Continuous Out Of Frame condition detected at the x
Interface
(where x is either Network or DTE).
„
Yellow Alarm signal received at the x Interface
(where x is either Network or DTE).
If two alarm conditions are detected at once, the higher priority alarm is reported.
However, if an even higher priority alarm is detected before the first alarm is
cleared, the later alarm is not reported. (The alarms listed above are in priority
order with the highest priority listed first.)
Alarms remain active until the alarm condition is cleared. Also, an alarm clear
message is only sent when there are no other alarms active.
For information about alarm configuration options, refer to Alarm Configuration
Options
in Appendix C,
Configuration Options
.
For troubleshooting information, refer to
Troubleshooting
on page 7-15.