standards and guidelines for communication sites - Radio And ...

STANDARDS AND GUIDELINES FOR COMMUNICATION SITES INTRODUCTION
Telephone service
conduit
Electrical
service conduit
Electrical Service
Main Disconnect
with Type 1 SPD
Interior MGB
Transmission
Line SPDs
bonded to MGB
Equipment
Room
Electrical service conduit
Cable TV
Electrical Service
Main Disconnect with
Type 1 SPD
Telephone and data
circuit secondary
SPDs must be
installed at equipment
within the CEB area.
MGB
SSGB
Tower
Antennas, transmission lines and
exterior ground omitted for clarity.
E-911 equipment and
computer area
External Ground
System
Telephone/data circuit
backboard with primary SPDs
Conduit to Dispatch Center
Corridor
Telephone and data circuit
secondary SPDs must be installed
at the equipment within the
equipment room.
Conduit(s) between Office Building and Dispatch Center
AC Power, Telephone Circuits, Cable TV, CCTV, and card
access control cables must all enter within the same area.
Primary SPDs on CCTV, Cable TV and card access control cable bonded to MGB.
CEB area
Telephone circuit backboard
with secondary SPDs
Telephone/data circuit backboard with primary SPDs
SSGB
Dispatch Center
Stand alone Dispatch Center with separate electrical service.
Telephone/data feed from adjacent Office Building
Office Building with equipment room. Building is
served by separate electrical service.
CCTV, Cable TV and card access control in Control Center furniture.
CCTV camera mounted on building
Card Access control cable
Parking Area
Gate with card
access control
FIGURE 7-1 MINIMUM REQUIRED SPD FOR TYPICAL INSTALLATION
68P81089E50-B 9/1/05 7-3