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Panasonic Digital Business System - Overview
April 1997
Introduction
The Digital Business System (DBS) range is a hybrid system allowing both digital key
telephone and analogue telephone handsets.
There is a range of three cabinet sizes. DBS38 , DBS68 and DBS90. These can be used
individually or combined with a second DBS90 to give a range of systems DBS38 , DBS68 ,
DBS90
,
DBS128
(DBS90+DBS90).
The cabinets are supplied empty, except for the power supply, and are configured using
modular cards and equipment options.
This section describes the port types and equipment for the DBS.
Important System Data
This is a class A product.
In a domestic environment this product may cause radio interference, in which case the user
may be required to take appropriate measures.
This product has been CE marked to show compliance with the EMC Directive 89/336/EEC
amended by 92./31/EEC and 93/68/EEC.
Port Types
Port Type
PAS
requirements
1AS
requirements
ITS
Special And Optional Circuits Supported
Circuit Type
Meter Pulse, 50 Hz
DC5, 2 wire + E&M
ISDN 30 , DASS 2
(DBS90+DBS38)
,
Permitted Connection
2 wire PSTN exchange line without DDI
2 wire PBX extension
Loop calling unguarded clearing, DTMF or LD
signalling, timed break or earth recall.
2 wire analogue speech band equipment
DTMF or LD dialling, timed break recall
E.g. SLT, cordless telephone, FAX, modem
Panasonic proprietary DBS digital keytelephone
Panasonic digital Voice Announce Unit
Table 1 - Port Connections
Table 2 - Special & Optional Circuits
4
DBS158
(DBS90+DBS68)
Circuit Use
Call charge calculation
Private circuit link
ISDN network connection
Issue 6
and
DBS180
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