User`s guide

2(44)
Datum/Date Rev
Dokumentnr/DocumentnrUppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved Kontr/Checked Tillhör/Referens-File/Reference
99-07-15 G
268/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Faktaansvarig - Subject responsible
ISDN GENERAL
DEFINITION
Integrated Services Digital Network, ISDN, is the
definition of a digital telephone network according to
CCITT. This network makes possible voice, video and
data transmission on the same line.
For the connection of a PBX to the ISDN network, the
user has two types of connection at his/her disposal,
depending on the respective network operator.
ISDN Basic Access ( BA ; 2B+D )
This access comprises 2 B-channels with a
transmission rate of 64kb/s each, which are used for
voice, video and data transmission, as well as one
D-channel with a transmission rate of 16kb/s, which is
used for signalling as well as data transmission.
The B-channels are completely independent and, in
case of a PBX, may be seen as two independent trunk
lines for external traffic.
ISDN Primary Rate Access ( PRA; 30B+D )
This access comprises 30 B-channels, one
synchronisation channel and one D-channel for
signalling. As for a PBX, these 30 channels may be
seen as independent trunk lines for external traffic.
ASB 150 02 supports the BA and PRA interface for
connecting to public ISDN networks defined according
to ACA (Australian Communication Authority) and
ETSI ( European Telecommunications Standard
Institute ).
ASB 150 02 offers also the possibility to connect ISDN
terminals on the extension side.
S-Interface ( 2B+D )
This access enables the connection of up to eight
logical data links ( usually one per ISDN terminal ) in
passive bus configuration on the user side.
ISDN-terminals that are in compliance with the ACA
(Australian Communication Authority) and ETSI
recommendations (EURO - ISDN) as well as the
country specific versions of the ETSI standard are
supported on the S-interface.
USE
With its various features, ISDN opens the door to
trend-setting functions, such as CTI (Computer
Telephony Intergration) which are used in all types of
industries.
The ISDN-features are called "supplementary
services“. Which services are offered or available to
the end user depends on the network operator.
PRA‘s, BA‘s and S-interface´s scope of services in
ASB 150 02 includes “Basic Call“ and supplementary
services.
You will find a detailed description in the following
chapters.
OPERATION
See the following chapters
CAPACITY
See the following chapters
LIMITATIONS
See the following chapters
PROGRAMMING
See the following chapters
EQUIPMENT
BTU-D with ISDN prom set or BTU-B_ or MFU