Motorola SC 4812ET RF Hardware Installation Manual page 155

Step
11d – Place the M10 nut over the stud and on top of the washer.
! CAUTION
Exceeding the torque limit may damage the stud.
11e – Torque (tighten) nuts to 11–12 N–m (100–110 in–lbs).
12 Repeat steps 11a through 11e for the remaining power cables.
13 Position the lug cover over the base and lock the cover (it will snap) onto the enclosure base.
14 Slide each grommet down the cable and over the cable entry hole.
15 Repeat step 5 through step 14 for the Power Cabinet connections.
16 Verify that DC polarity between the RF and Power Cabinet is correct.
Applying AC Power
Apr 2001
SC
TM
V0D.03
SC 4812ET/SC 614 BTS DC Power Sharing
Table D-6: Procedure to Install DC Power Cables
Checks
Check that all AC & DC breakers are turned OFF in both the SC
4812ET RF and Power Cabinet. The SC 614 Cabinet should have the
DC buss bar (six breakers) closed, and the 100 amp breaker on the BBI
open.
Check that the DC Power cables between the Power and RF Cabinets are
connected with the correct polarity. There are two red and two black
cables for the SC 4812ET and one red and one black cable for the SC
614 BTS
Confirm that split phase 240/120 AC supply is correctly connected to the
AC Load Center input in the SC 4812ET Power Cabinet.
Failure to connect the proper AC feed will damage the
surge protection module inside the AC Load Center.
For instructions on applying AC and DC power to the BTSs refer to the
appropriate BTS Optimization/ATP manual.
4812ET RF and Power Cabinet Hardware Installation Manual
Action
CAUTION
DRAFT
– continued
D
155