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Procedure 7-18 (continued)
Replacing an NT7E08 DS3 mapper
Step
11
12
13
14
15
16
AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0
Replacing modules in a common-equipment shelf 7-53
Action
Wait at least 5 seconds before installing the replacement card. Gently push
the replacement circuit pack in until the ejector latches come in contact with
the shelf. Then push the latches in toward the circuit pack to engage the
circuit pack with the backplane connector.
If you put a mapper out of service in step 8, then from the DS1 equipment
screen, change the state of the replacement DS1/VT mapper to in-service
(IS):
chgstate is↵
Determine the type of protection activity that was performed before the card
was replaced:
If
a protection lockout was performed
a protection switch was performed
no protection switch was performed
From the detailed protection screen, release the protection lockout:
lockout re p↵
y↵
When the lockout is released, the screen displays a period ( . ) in the lockout
column.
Skip to step 16.
From the detailed protection screen, release the protection switch:
manual re <group>↵
y↵
where
<group>
is the group number of the DS3 mapper that was switched
(in step 5).
When a protection switch is released, the screen displays a period ( . ) in the
manual column.
Replace the shelf cover.
—end—
Then go to
step 14
step 15
step 16
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