Nortel DMS-100 Series Replacement Procedures page 114

1-82 XPM card replacement procedures
NT0X91
in an RSC
(continued)
297-8021-547 Standard 14.02 May 2001
DANGER
Static electricity damage
Wear a wrist strap connected to the wrist-strap grounding
point of a frame supervisory panel (FSP) while handling
circuit cards. This protects the cards against damage caused
by static electricity.
CAUTION
Loss of service
Ensure that the alarm and control card that you are about to
remove is the one that controls the PM units that you have
just busied. Removing the wrong card causes a loss of
service. Reference the following figure and step Section 2,
"Record the frame supervisory panel (FSP) slot, frame circuit
breakers (CB), shelves, PM location and units, and power
converter slots that are associated with the faulty NT0X91
card you are replacing. Use the following table and figure
"RCE frame layout for NT0X91 alarm, converter drive and
protection circuit distribution" to obtain this information." on
page -76 of this procedure to ensure unseating the correct
NT0X91 card..
Open the FSP panel.