Nokia Solutions and Networks T7GT1 User Manual
Access Point Hardware Installation
Ground Cabling Installation
RGPS Grounding
Figure 4-6
Typical Outdoor Grounding Diagram
ti-cdma-04180.eps
DC Primary Surge Arrestors
Backhaul & Customer I/O
Surge Arrestor
Surge Arrestor
AC Primary Surge Protector
Bonded Ground / Earth
Connection
Connection
Conduit or
Shielded Cable
Shielded Cable
LPZ1
LPZ2 Secondary Protected Zone
LPZ0
A
LPZ0
B
Antenna Tower
45 Degree
IEC Recommended
Direct Strike
Protection Angle
RF
1
RF
2
RF
3
BCU
BACKHAUL
CSU
CSU
AC Input
Backhaul
MASTER SINGLE
POINT EQUIPMENT
GROUND
POINT EQUIPMENT
GROUND
LPZ0
A
-- Possible direct strike zone
LPZ0
B
-- No direct strike, but
unattenuated electromagnetic field
present
present
LPZ1 Primary Protected Zone
LPZ1
LPZ2
LPZ
2
LPZ
2
LPZ
2
Customer I/O
68P09277A59-5
4-21
Draft
OCT 2006