Aviat Networks ECLIPSE EDGE, Руководство пользователя

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8 Aviat Networks
Chapter 5. Eclipse Edge Commissioning and Troubleshooting
Confirming Link Protection for Edge
Before commencing:
• Check the protected link is operating normally:
• No alarm icons in the Portal status bar (green).
• No G.826 errors in the Performance screen.
• Determine the primary/secondary ODUs and their online status.
• For hot-standby and space diversity links the default configuration has the online
Tx function with the primary ODU (ODU1).
Preliminary
In the procedures provided:
A BER test can be applied using the PRBS function built into the DAC 16x module, or
an external BER tester.
Other procedures can be used. For example, the built-in PRBS functions can be
activated at both ends of a protected link to provide a both-way test on a trib (both
directions separately monitored).
Portal screens for local and remote terminals can be dragged to different parts of
your PC screen for easier management
.
The test procedures described are based on default primary and secondary Tx online
settings, which has the primary ODU online transmitting.
Where the built-in PRBS Generation function is being used to check protection
switching:
• For each switch event that is not designed to be hitless, the Errored Second count
increments by 1, or depending on the counter time boundary relative to the event, a
maximum of 2. Refer to
Switch Operation Test Measurement for Edge on
page 6
.
• For most tests Available/Unavailable time should not change, and the Severely
Errored Second count will mirror the Errored Second count.
• Ensure the link is operating alarm-free, and that path conditions are normal.
• Use the System/Controls screen to view, and if necessary reset the online Tx ODU.
Hot-standby and Space Diversity for Edge
Tx switching is not hitless. Rx path switching is hitless.
Test procedures are provided for:
• Local alarm Tx switch: local Tx switch forced by local Tx alarm.
• Silent alarm Tx switch: local Tx switch forced from remote end by LOS (loss of
signal).
• Rx protection.
Local-alarm Tx Switching Procedure
The procedure requires withdrawal of the online Tx ODU cable.