Nortel DMS-100 Series Replacement Procedures page 245

c Ensure the replacement card has the same PEC, including suffix, as the
card you just removed.
13 Open the locking levers on the replacement card.
a Align the card with the slots in the shelf and gently slide the card into the
shelf.
14 Seat and lock the card.
a Using your fingers or thumbs, push on the upper and lower edges of the
faceplate to ensure the card is fully seated in the shelf.
b Close the locking levers.
DMS-100 Family NA100 Card Replacement Procedures Volume 6 of 7 LET0015 and up
XPM card replacement procedures (continued)
in an RSC-S (DS-1) Model B RCC2
1-213
NT7X05
(continued)