Nortel DMS-100 Series Replacement Procedures page 391

9 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 21.
At the equipment frame
10 Hang 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
11 Observe the MAP display and determine the state of the inactive unit.
If state is
Manb
SysB, CBsy, ISTb, or InSv
12 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)
13 Reset the unit by typing
>PMRESET UNIT unit_no NORUN
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)
Do
step 14
step 12
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.
NTAX78
in an SMA
(continued)
1-359