Nortel DMS 100 Series Maintenance Manual page 184

6-32 RSC-M card replacement procedures
NTMX72
in an RSC-M
(continued)
At the shelf
13
14
15
16
17
18
297-8223-550 Standard 04.02 November 2000
WARNING
Static electricity damage
Wear a wrist strap that connects to the wrist-strap grounding
point of the modular supervisory panel (MSP) to handle
circuit cards. This protects the cards against static electricity
damage.
To power down the inactive unit, set the power switch on the NTMX72
faceplate to the OFF position.
Note: The NTMX72 circuit cards, are in slots 1 and 2 of unit 0, and in slots
26 and 27 of unit 1.
To replace the card, use thecommon replacing a card procedure in this
document. Complete this procedure and go to step 17.
Note: If the circuit card you are to replace has switches, make sure the
switches on the replacement circuit card have the same settings.
WARNING
Briefly state reasons for the ESDS caution
Enter the reasons for the electro-static discharge caution: an
ESDS caution informs the reader to observe precautions for
handling an electrostatically sensitive device.
To power down the NTMX72AB power converter, set the circuit breaker on the
MSP for the inactive unit to the OFF position.
To replace the card, use the procedure removing and replacing a card in this
section. Complete this procedure and go to step 17.
Power up the NTMX72 circuit card as follows:
a Insert the NTMX72 circuit card completely. An audible alarm can sound.
To silence this alarm, restore power to the NTMX72 circuit card.
b If you replaced an NTMX72AA power converter, set the POWER switch
to the ON position. Set the POWER switch to RESET when you set the
circuit breaker on the MSP to the ON position.
c If you replaced an NTMX72AB power converter, set the circuit breaker on
the MSP to the ON position. Set the circuit breaker on the MSP to ON,
for the NTMX72AB that you powered down in step 15.
To load the inactive unit, type:
>LOADPM INACTIVE