Ovrrbu-bts. Pdf

AirLink 8000
1/30/00
BASE TRANSCEIVER STATION
Release 1.00
2 - 35
1.17.5 System Capacity (SYSTEM = single DSCO scenario)
Active Telephone Lines per RBU
100 active lines, up to 119 under ideal conditions (Note: tele-
phone lines can optionally be data connections).
Maximum Lines per RBU
Up to 2500 with 25:1 concentration.
Maximum RBUs per DSCO (System)
Up to 15 (assumes no DSCO intra-calling. When intra-call-
ing is used, more RBUs can be supported.)
Maximum Active Lines per System
Up to 1500.
Maximum Lines per System
10,000 lines.
RBUs per Cell
Variable depending on antenna, frequency, and PN code
selection.
1.17.5.1 Interfaces
Network Interface Unit (DSCO)
PSTN Physical Interface
Twisted pair VF channel bank or E1 (75 or 120 ohm). Up to
1500 ports. 
PSTN Protocol Interface
Flexible to accommodate all known CAS, and CCS proto-
cols.
RBU Interface
1 to 4 E1 connections per RBU. The E1 signals can be
relayed to accommodate remote RBUs. Up to 15 RBUs can
be supported from a single DSCO.
Power Input
-48 VDC.

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