Nortel DMS-100 Series Maintenance Manual page 211

The system determines the type of SWACT it can perform and displays a
confirmation prompt for the selected SWACT.
If SWACT
can continue at this time
cannot continue at this time
6 Switch the activity of the unit by typing
>YES
and pressing the Enter key.
The system runs a pre-SWACT audit to determine the ability of the inactive unit
to accept activity reliably.
Note: A maintenance flag appears when maintenance tasks are in progress.
Wait until the flag disappears before proceeding with the next maintenance
action.
If the message is
SwACT passed
SwACT failed
SwACT failed Reason: XPM SwActback
SwACT refused by SwAct controller
7 Clear the alarm condition on the inactive unit. Refer to the "SMS alarm clearing
procedures" section in this document. When the alarm is cleared, return to step
1 of this procedure.
At the frame
8 Put a sign on the active unit bearing the words: Active unit—Do not touch.
This sign should not be attached by magnets or tape.
At the MAP terminal
9 Busy the inactive PM unit by typing
>BSY UNIT unit_no
and pressing the Enter key.
where
unit_no is the number of the faulty SMS unit
DMS-100 Family SMS Maintenance Manual XPM10 and up
Card replacement procedures 7-5
SMS
(continued)
Do
step 6
step 23
Do
step 8
step 7
step 7
step 7
NT2X70