Nortel DMS-100 Series Maintenance Manual page 478

12-130 Star Remote System card replacement procedures
NTTR67
in an RLD
(continued)
11
297-8353-550 Standard 05.01 March 2001
WARNING
Static electricity damage
Before removing the dc panel, put on a wrist strap and
connect it to the wrist strap grounding point in the top left
corner of the TSS. This protects the equipment against
damage caused by static electricity.
Unlock and open the cabinet door. The door alarm generates a Major alarm
at the MAP terminal. Silence the alarm by pulling the interlock switch out.
Loosen the two large screws at the left side of the inside TSS cover. Open
the TSS cover to access the TSS.
a Power down the RLD by performing the following steps:
i Set the circuit breaker on the dc panel to OFF
ii Remove ac power from the RLD as follows:
• 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
iii Note that the green Power On LED is not lit
iv The RLD is now powered down
b Use a slot screwdriver to loosen the three screws that hold the dc panel
to the TSS.
c Remove the dc panel.
d Remove the four fuses from the dc panel, recording the fuse size and
color to ensure correct installation in the replacement dc panel.
e Install a replacement dc panel with one of the same PEC and suffix.
f Install the four fuses that were removed in step 11d
g Use a slot screwdriver to tighten the three screws that hold the dc panel
to the TSS.
h Provide ac power to the RLD as follows:
i if the enclosure is an outdoor pad or pole-mounted SRMO, set the
Main circuit breaker on the dc panel to the ON position. Then set the
Rectifier circuit breaker on the ac panel to the ON position.
ii reconnect the battery connector
i Set the circuit breaker on the dc panel to ON
j Reconnect the battery connector
k Note that the green Power On LED is lit. Make sure no alarm condition is
indicated by the LEDs on the SMC card