Nortel DMS-100 Series Maintenance Manual page 505

At the MSP
9 Turn OFF the circuit breaker for the ringing generator to be replaced by using
the information in the following table:
Circuit breaker
CB06
CB08
10
WARNING
Static electricity damage
Before removing any cards, put on a wrist strap and
connect it to the wrist strap grounding point on the modular
supervisory panel of the OPAC cabinet. This protects the
equipment against damage caused by static electricity.
WARNING
Equipment damage
Take these precautions when removing or inserting a card:
1. Do not apply direct pressure to the components.
2. Do not force the cards into the slots.
Put on a wrist strap.
At the HIE
11 Remove the NT6X60 card as follows:
1. Locate the card to be removed on the appropriate shelf.
2. Open the locking levers on the card to be replaced and gently pull the card
towards you until it clears the shelf.
3. Place the card you have removed in an electrostatic discharge (ESD)
protective container.
4. Examine the switch settings (if any) of the card just removed. Ensure that
the switch settings on the replacement card match those of the card being
replaced.
5. Ensure that the replacement card has the same product equipment code
(PEC), including suffix, as the card you just removed.
Ringing generator
RG–0
RG–1
DMS-100 Family OPAC Maintenance Manual XPM12 and up
Card replacement procedures 8-139
HIE
Locations
HIE slots 1, 2, 3, 4
HIE slots 5, 6, 7, 8
NT6X60
(continued)