Ripwave Base Station I&C Guide
Navini Networks, Inc.
40
Part #40-00047-00 Rev D v1.0
February 28, 2003
Interference Analysis
The RF Engineer(s) also analyzes existing interference from other sources, and takes that into
account when creating the coverage prediction map. In addition to coverage, though, the
interference analysis also helps to predict the quality of service, the power requirements to get
above the noise floor, and other expectations regarding the site. This study will help Navini and
the customer decide which type of system (frequency) and antenna (panel or omni) will provide
the best results.
Network Architecture Plan
The IP Networking community involved in the project, both from Navini and the customer, work
together to analyze and plan how the Ripwave system will be integrated into the customer’s
network. Of course, they are looking for efficient operation of the system and seamless
integration. They have to plan the traffic routing, IP addressing, protocol compatibility, and so
forth.
Bill of Materials
Someone has to generate the Bill of Materials (BoM) - the actual equipment order to be
manufactured and shipped to the installation site. Navini can provide part numbers and ordering
information, as well as recommendations and other details that will assist customers in the
correct placement of orders. There is a sample Bill of Materials in
Appendix O
.
Backhaul Connections
The Backhaul connections for the Ripwave Base Station consist of up to two (2) Ethernet cable
connections with RJ-45 connectors for each BTS installed, OR, up to eight (8) T1 connections
with RJ-48 connectors for each BTS. The quantity of each connection will depend on the site
requirements. These connections need to be made available before installation begins.
Power Requirements for the Base Station
The input power source will be determined during the site survey. The DC power source needs to
be an independent hard-wired circuit of 21VDC to 28VDC with a 50-amp breaker for the Combo
Chassis and a 70-amp breaker for the Split Chassis. The power plant return bus must be
connected to an earth ground connection similar to the Base Station chassis. Insulated #6 AWG
cable is recommended. The combo chassis system generates up to 1000 Watts, and the split
chassis system generates up to 1500 Watts maximum; however, 1353 Watts is typical.