User's Manual Part 1

Earth Ground Cabling – continued
MAY 2004
4-47
1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU
PRELIMINARY
BTS Ground Procedure
Follow the procedure in Table 4-24 to attach the ground cable.
Table 4-24: Procedure to Attach the Earth Ground Cable
Step Action
NOTE
Due to variability in rack placement, the rack is isolated from ground to reduce the chances of creating
ground loops.
1 Retrieve ground lug and cabling.
1a Using a wire stripper, trim back 1/2–inch of the ground cable insulation from each end.
1b Using a crimp tool crimp the lug onto one end of the cable.
1c Attach the ground clamp to the opposite end of the ground cable.
2 Using two screws attach the ground cable and lug to the BTS. See Figure 4-31.
3 Slide ground clamp over ground anchor and secure using a lockwasher. Use a 13mm socket to tighten
the hex nut. Use a torque wrench to tighten hex nut to 5.0 N–M (44 in–lbs).
4 Use tie–wraps as required to dress the ground cable, unless conduit is used.
GROUND LOCATION
Figure 4-30: Detail Location of Ground Studs
TME
–48V
+0V
20A
4