1.4
Summarizing The Hardware
The digital telephone system consists of an electronic Digital Service Unit (DSU)—usually
referred to as “common equipment”—optional expansion modules to extend station and line
capacities, dedicated digital electronic key telephones, and interconnecting wiring consisting of
small, 2- or 4-conductor, twisted-pair cable. The digital telephone system supports all Comdial
proprietary digital telephone models.
The station and line capacity of the base unit and optional expansion modules are detailed in the
following chart.
Model
Number
CO/PBX
Capacity
Station
Capacity
J0408
4
8
J0816
8
16
J1632
16
32
JM408
4
8
JM008
0
8 industry-standard
telephones
DSU II Digital Telephone System
IMI66–132
Introducing The DSU II Digital Telephone System 1–7
Содержание DSU II
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