Maintenance
XDM-300
Installation
and
Maintenance Manual
4-24 ECI
Telecom
Ltd.
Proprietary
417006-2311-0H3-A00
Replacing ECU300/ECU300-F Cards
This section provides replacement instructions for the ECU300/ECU300-F.
C
AUTION
:
Replace the ECU300/ECU300-F card as rapidly
as possible. While the ECU300/ECU300-F card is out,
management, debugging, T3/T4 synchronization, and other
tasks supported by this card are not possible.
Before attempting to remove the card, monitor the NVM
(yellow) and TMU (orange) indicators of the MXC300
installed in the shelf; remove the ECU300/ECU300-F only
after the MXC300 indicators have been off for at least 2
minutes.
To replace the ECU300/ECU300-F:
1.
Mark each cable connected to the card for identification purposes.
2.
Disconnect the cables connected to the ECU300/ECU300-F.
3.
Open the two captive screws fastening the card to the shelf.
4.
Remove the card to be replaced by pulling its handle.
5.
Insert the rear end of the replacement card in the corresponding card
guides.
6.
Push the card in until it mates the chassis connectors. If you feel resistance
before the connectors are mated, pull the card out and repeat the procedure.
7.
Fasten the card to the shelf by its two captive screws.
8.
Reconnect the cables disconnected in Step 2 to the replacement card.
Summary of Contents for XDM-300
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