Chapter 3. Installing the INU and INUe
Vol. III-3-10 Alcatel-Lucent
Installing / Changing Plug-ins
ESD grounding strap Always connect yourself to the INU/INUe with an ESD grounding
strap before changing or removing a plug-in. Failure to do so can
cause ESD damage to the plug-ins. Avoid hand contact with the PCB
top and bottom.
Finger-grip fasteners Plug-ins must be withdrawn and inserted using their finger-grip
fasteners/pulls. Never withdraw or insert using attached cables, as
damage to the plug-in connector and its PCB attachment can occur. If
not complied with, the Alcatel-Lucent warranty may be voided.
Hot-swappable Plug-ins are hot-swappable. Removal of an in-service plug-in will
interrupt its traffic. Removal of the NCC will affect all traffic (unless
protected by an NPC).
Engaging backplane
connector
When installing a plug-in, ensure its backplane connector is correctly
engaged before applying sufficient pressure to bring the plug-in panel
flush with the front panel.
Revision time lag When swapping or installing plug-ins, up to 60 seconds can be
required for the INU/INUe to show its revised status via the front
panel LEDs, or via 9500 MXC CT.
EMC integrity Plug-ins and blanking panels are held in place by captive
finger-screws. Ensure the finger-screws are fastened as failure to do
so may compromise EMC integrity and fan cooling.
RACs
Connecting and
disconnecting the ODU cable
at the RAC
Never disconnect or reconnect an ODU cable to a RAC without first
turning the power off to the INU or withdrawing the RAC from the
backplane.
Note: The ODU cable provides the power feed to the ODU. Arcing
during connection and disconnection at the RAC on a live
RAC can cause damage to connector contact surfaces.
Power spikes caused by live connection and disconnection
may also cause errors on other traffic passing through the
INU/INUe. The only exception to live disconnection and
connection should be for checks of protected operation at
link commissioning.
Function/Requirement Priority Details
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