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Section 300-Installation Chapter 2. System Overview
DBS-2.3/9.2-300 DBS Manual - Revised April 2000 2-5
Configurations
The DBS comes in three models, which provide from 40 to 96 ports. Up to
two systems can be combined to increase port capacity up to 192 ports (DBS
96 + DBS 96).
In addition to dedicated trunk and extension slots, each system includes one
expansion slot (labeled EC/TRK) that can be used for either trunks or
extensions. The following table shows port capacities for individual systems
and for different combinations of systems.
Table 2-1. Trunk and extension capacities according to system size
System Size Trunk
Ports
Extension
Ports
Expansion Ports
(Trunks or Extensions)
DBS 40 8 24 8
DBS 72 16 48 8
DBS 96 24 64 8
DBS 40 + DBS 40 16 48 8 (See Note 1.)
DBS 72 + DBS 40 24 72 0 (See Note 2.)
DBS 72 + DBS 72 32 96 8 (See Note 1.)
DBS 96 + DBS 40 32 88 16
DBS 96 + DBS 72 40 112 16
DBS 96 + DBS 96 48 128 16
Notes:
1. The slave cabinet must be used for expansion ports.
2. When a DBS 72 and DBS 40 are connected, expansion ports cannot be used.