Nortel DMS-100 Series Replacement Procedures page 1039

Go to step 16.
15
Power down the NTMX72AB power converter by setting the circuit breaker on
the MSP for the inactive unit to the OFF position.
Perform the common replacing a card procedure in this document.
Go to step 16.
16 Power up the inactive SMA2 unit as follows:
a Ensure the power converter (NTMX72) is inserted. A major audible
alarm may sound. This alarm is silenced when power is restored to the
converter.
b If the power converter you replaced is an NTMX72AA, set the POWER
switch to the ON position. Set the POWER switch to RESET when setting
the circuit breaker on the MSP to the ON position.
c If the power converter you replaced is an NTMX72AB, set the circuit
breaker on the MSP to the ON position for the NTMX72AB that was
powered down in step 15.
17 After replacing the faulty card, load the inactive SMA2 unit by typing
>LOADPM INACTIVE
and pressing the Enter key.
where
unit_no
is the number of the inactive SMA2 unit
If load
passed
failed
18 Use the following information to determine where to proceed.
If you entered this procedure
from
alarm clearing procedures
DMS-100 Family NA100 Card Replacement Procedures Volume 6 of 7 LET0015 and up
XPM card replacement procedures (continued)
DANGER
Static electricity damage
Before removing any cards, put on a wrist strap and connect
it to the wrist strap grounding point on the left side of the
modular supervisory panel (MSP). This protects the
equipment against damage caused by static electricity.
Do
step 18
step 23
Do
step 22
NTMX72
in an SMA2
(continued)
1-1007