Nortel DMS-100 Series Maintenance Manual page 496

12-148 Star Remote System card replacement procedures
NTTR72
in an RLD
(continued)
11
12
13
14
15
297-8353-550 Standard 05.01 March 2001
a Set the circuit breaker on the dc panel to OFF.
b Remove ac power from the RLD as follows:
• if the enclosure is an indoor wall-mounted SRME, remove power at
the local ac power panel
• if the enclosure is an outdoor pad or pole-mounted SRMO, set the
Rectifier circuit breaker on the ac panel to the OFF position. Then
set the Main circuit breaker on the ac panel to the OFF position.
• disconnect the battery connector
• Note that the green Power On LED is not lit
c The RLD is now powered down.
WARNING
Static electricity damage
Before removing the NTTR72 card, put on a wrist strap and
connect it to the wrist strap grounding point on the TSS. This
protects the equipment against damage caused by static
electricity.
The NTTR72 is in the left card slot in the upper left area of the telephony
subsystem (TSS).
Replace the NTTR72 card.
Power up the RLD by performing the following steps:
a Provide ac power to the RLD as follows.
• if the enclosure is an indoor wall-mounted SRME, supply power at
the local ac power panel
• if the enclosure is an outdoor pad or pole-mounted SRMO, set the
Main circuit breaker on the ac panel to the ON position. Then set the
Rectifier circuit breaker on the ac panel to the ON position.
b Set the circuit breaker on the dc panel to ON.
c Re-connect the battery connector.
d Note that the green Power On LED is lit. Make sure no alarm condition is
indicated by the LEDs on the SMC card.
e The RLD is now powered up.
Make sure the green Power OK LED is lit on the NTTR72. Wait a few minutes
for the Star Module to power up and become stable before proceeding to the
next step.
Close the TSS cover, if applicable. Replace the cover on the SRME Wall
Mount. Close and lock the cabinet door on the SRMO cabinet.