User's Manual

1-8 Configuring, Installing, and Using Carrier Infrastructure
Cable loss ranges
Use tables Table 1.2 and Table 1.3 to determine the cable size you need, based on signal loss.
Placement of base stations and switches on network
Make sure your network design places the base stations behind a switch so that the base
station sees only Ethernet traffic addressed to it. The switch you choose needs to be able to
handle the Ethernet traffic on your network
Assessing network access provider equipment needs
Before you install and deploy the base station, ensure you have made provisions for the
following components:
• Power and data connection between the base station and your network
• Global position system (GPS) for proper TDD functions. You must use the GPS supplied
with the Expedience system.
• Antenna system for transmitting and receiving signals for the base stations.
•SNMP server
• DHCP server, if desired, to supply IP addresses to base stations
• AP server
• Weatherproof housing for the backbone network switch, power supplies, and UPS. Also
supply weatherproof housing for the TVS module, which provides lightning protection.
• Coaxial cable to connect the base station to the antenna.
• Tower or building structure on which to mount cell site equipment.
Equipment needs of ISP
As a network access provider, you provide network bandwidth to ISPs. The ISPs in turn sell
network access to subscribers. Make sure your ISPs plan for the following pieces of
equipment on the ISP VLAN:
Table 1.2 Recommended cable length ranges for 2.3 - 2.7 GHz
Length of
cable drop Cable type
Signal loss per
100 feet
Signal loss
range
4 ft to 85 ft 1/2 inch LDF 3.52 .14 to 2.99
50 ft to 110 ft 5/8 inch LDF 2.65 1.33 to 2.92
90 ft to 150 ft 7/8 inch LDF 2.02 1.82 to 3.03
125 ft to 200 ft 1 1/4 inch LDF 1.47 1.84 to 2.94
Table 1.3 Recommended cable length ranges for 3.3 - 3.6 GHz
Length of
cable drop Cable type
Signal loss per
100 feet
Signal loss
range
4 ft to 85 ft 1/2 inch LDF 4.39 .18 to 2.85
50 ft to 110 ft 5/8 inch LDF 3.35 1.68 to 2.85
90 ft to 150 ft 7/8 inch LDF 2.55 1.91 to 2.93
125 ft to 200 ft 1 1/4 inch LDF* 1.84 2.30 to 2.94
*Note: The 1 1/4 inch LDF cable is not recommended for systems running at a
range higher than 3.3 GHz.