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HDSL Startup and Synchronization
350-819-300-01, Revision 01
12
January 10, 2000
ELU-819 List 1
HDSL S
TARTUP
AND
S
YNCHRONIZATION
Power-up the shelf where the ELU-819 is installed and observe the following:
1
The Status LED flashes green once per second as the unit attempts to
establish synchronization.
2
After approximately 30 seconds, confirm one of the following:
•
The Status LED is steady green, indicating the unit is synchronized
and ready to transmit and receive data. The unit can now be
configured through the maintenance terminal console screen menus.
•
The Status LED continues to flash. If the LED does not stop flashing
after approximately one minute, it indicates that the HDSL pair
corresponding to the indicator is experiencing an excessive signal
loss or is in an open condition. Check the line and repair if necessary.
HMU-319 List 7A must be loaded with software version V.3.0
or higher to provide this function. If this is not available,
configuration must be performed from the remote unit.
Refer to document 150-319-107-xx for more detailed
information on terminal connections (see