User's Manual Part 2a

Installing the BSR Hardware Installation Guide
4-2 Airspan Networks Ltd. 02030311-05
4.1. Overview
The BSR is the center of the WipLL system. The BSR provides last-mile wireless
connectivity by connecting the provider’s backhaul network to the subscriber’s
wireless unit (Subscriber Premises Radio [SPR]). In addition, the BSR is responsible
for synchronizing the WipLL network (i.e., synchronizing SPRs/IDRs).
For base stations consisting of a single BSR, the BSR is typically powered and
connected to the provider’s backhaul network by the WipLL Subscriber Data
Adapter (SDA). For base stations consisting of multiple BSRs, the BSRs are
powered and connected to the provider’s backhaul by the WipLL Base Station
Distribution Unit (BSDU).
The BSR is available in three models:
! BSR with a built-in antenna
! BSR with an N-type port for connection to an optional third-party external
antenna
! BSR with an two N-type ports for connection to two optional third-party external
antennas for dual antenna diversity