User's Manual Part 1

Earth Ground Cabling – continued
MAY 2004
4-51
1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU
PRELIMINARY
Figure 4-33: Typical Multiple Outdoor Grounding Configuration
LEGEND:
1. PSA – Primary Surge Arrestor
2. SSA – Secondary Surge Arrestor
3. CDT – Conduit
4. SLD – Shielded Cable
5. EGD – Earth Ground
6. TWR –Tower Ground
7. TSA –Tertiary Surge Arrestor
SLD
PDE 1
TME 1
GPS
cCLPA
ANTENNAS
ANTENNA
TOWER
PSA
PSA
PSA
SSA
CDT
POWER and DATA LINES
SINGLE POINT
MASTER GROUND
EGD
EGD
EGD
SLD
CDT
TWR
TWR
PDE 2
TME 2
TME 3
PSA
EGD
EGD
CDT
CDT
TSA
TSA
TSA
NOTE:
TME and PDE are electrically
isolated from ground.
In addition, there are shielded RF
cables connecting the TME and
PDE.
CDT
The TME to PDE Earth ground cable
can be routed through the power
conduit as long as a jumper cable is
spliced from the conduit ground
bushing to the earth cable
4