Nortel DMS-100 Series Replacement Procedures page 459

If the message is
SWACT
XPM SWACTback
SWACT refused by SWACT
Controller
10 The inactive unit could not establish two-way communication with CC and has
switched activity back to the originally active unit. You must clear all faults on
the inactive unit before attempting to clear the alarm condition on the active
unit.
Go to step 22.
At the equipment frame
Hang a sign on the active unit bearing the words: Active unit—Do not touch.
11
This sign should not be attached by magnets or tape.
At the MAP terminal
12 Observe the MAP display and determine the state of the inactive unit.
If the state is
ManB
SysB, CBsy, ISTb, or InSv
13
Busy the inactive PM unit by typing
>BSY UNIT unit_no
and pressing the Enter key.
where
unit_no
is the number of the inactive SMA unit (0 or 1)
At the equipment frame
14 Perform the common replacing a card procedure in this document.
DMS-100 Family NA100 Card Replacement Procedures Volume 6 of 7 LET0015 and up
XPM card replacement procedures (continued)
in an SMA-MVI-20
failedReason:
WARNING
Static electricity damage
Before removing any cards, put on a wrist strap and connect
it to the wrist strap grounding point on the frame supervisory
panel (FSP). This protects the equipment against damage
caused by static electricity.
Do
step 10
step 10
Do
step 14
step 13
1-427
NTBX01
(continued)