Nortel DMS-100 Series Maintenance Manual page 226

7-20 Card replacement procedures
NT6X40
in a SMS
(continued)
10
At the cabinet
11
At the front of the shelf
12
At the back plane of the shelf
13
14
297-8231-550 Standard 09.01 August 1998
Manually busy all C-side links associated with the inactive PM unit you are
working on using the procedure Manually busying Series II PM and CPM C-side
links in this document. When you have completed the procedure, return to this
point.
Place a sign on the active unit bearing the words Active unit–Do not touch.
This sign should not be attached by magnets or tape.
If you are replacing an
NT6X40GA
NT6X40AC, AD, FA, FB, or FC
WARNING
Static electricity damage
Wear a wrist strap connected to the wrist-strap
grounding point of the modular supervisory panel
(MSP) while handling circuit cards. This protects the
cards against damage caused by static electricity.
Unseat the NT6X40 card in the inactive unit.
DANGER
Risk of electrocution
Voltage is present on the back plane. Remove all
jewelry before continuing with this procedure. Do not
touch pins or terminals except as instructed.
Locate the circuit card to be replaced.
Note: NT6X40 circuit cards are located in slot 9 of unit 0, and slot 19 of unit 1.
Label each connector to the circuit card.
Do
step 12
step 24