User Manual

1X UBS Macro B T S FRU Fr ame P ower Down & P ower -Up Procedures
Frame Power Down & Power -Up Procedures
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Powering Down the Frame
Prior to powering down the frame, perform the steps in Procedure 3 -2 Shutdown site
signaling functions procedure for a packet BTS on page 3 - 5 .
P ower down the frame by performing the steps in Procedure 2 -1 .
Procedure 2 -1 P owering Down the Fr ame
A T THE BTS SITE
1
Set all PDU DC circuit breakers to OFF (pulled out) in the following sequence (see
Figure 1-12 PDU front panel detail on page 1- 42 ):
• XMI 1 through XMI 4 (up to four breakers)
• DMI 1 through DMI 5 (up to five breakers)
• S SI 1 through S SI 2 (up to two breakers)
• ACC 1 through ACC 2 (up to two accessory breakers)
2
If the BTS site is equipped with backup batteries, set all battery circuit breakers to the
OFF position.
3
F or a +27 V DC powered UBS Macro frame, set the facility circuit breaker
controlling external +27 V DC power to the frame to the OFF position.
F or a — 48 V DC powered UBS Macro frame, set the facility circuit breaker
controlling external 48 V DC power to the PSM to the OFF position.
F or an AC powered UBS Macro frame, set the facility circuit breaker controlling
external AC power to the PSM to the OFF position.
Power -up the Frame
P ower -up the frame by performing the steps in Procedure 2 -2 .
68P09283A64 -3 2 -3
FOA SEP 2007