User's Manual

Hardware Installation Guide Network Cabling
02030311-07 Airspan Networks Inc. 8-5
8.1.2. Connecting SDA to Provider's Ethernet
Network
The SDA is typically implemented at the subscriber's premises with the SPR. For a
detailed description of connecting the SDA to the Ethernet network, see Part 2,
Chapter 14, "Network Cabling".
8.2. BSR Connected to a BSDU
Multiple BSRs at a Base Station interface with the the provider's backhaul network
through the BSDU. Each BSDU can support up to six BSRs, and each Base Station
can support up to four BSDUs. Thus, at full configuration, 24 BSRs (i.e. 4 BSDUs
multiplied by 6 BSRs) can be implemented at a Base Station.
8.2.1. Connecting BSR to BSDU
The BSR’s 15-pin D-type port is connected to one of the six BSDU’s rear panel 15-
pin D-type ports (labeled BSR #).
The BSR-to-BSDU cable setup is as follows:
! Cable: straight-through 10Base-T Ethernet 4 Pair Cat 5 outdoor type – 24 AWG
(100 meters)
! Connectors:
! BSR side: 15-pin D-type male (only 8 pins are used)
! BSDU side: 15-pin D-type male (only 8 pins are used)
Note: Airspan supplies unterminated CAT 5 cables for 15-Pin D-type
connectors. For a detailed description on crimping cables, see Appendix C,
“Cable Crimping".