Bedienungsanleitung Aritech ATS7100 (Seite 5 von 24) (Englisch, Holländisch)

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ATS7100/7110 Installation and Troubleshooting Guide 5

PRI is intended for users with

greater capacity requirements.

In Europe, PRI consists of 30

B channels plus one 64 kb/s D

channel for a total of 1984

kb/s.

1. INTRODUCTION

1.1. General

This installation guide describes the installation of:

ATS7100 ISDN B-channel dialler; and

ATS7110 ISDN D-channel transmitter

ISDN Definitions

ISDN, (Integrated Services Digital Network)

It is a system of digital phone connections which allows

data to be transmitted simultaneously across the world

using end-to-end digital connectivity.

With ISDN, voice and data are carried by bearer

channels (B channels) occupying a bandwidth of 64

kb/s (bits per second). A data channel (D channel)

handles signalling at 16 kb/s or 64 kb/s, depending on

the service type. There are two basic types of ISDN

service: Basic Rate Interface (BRI) and Primary Rate

Interface (PRI).

Basic Rate Interface (BRI)

Primary Rate

Interface (PRI)

The ATS7100 and ATS7110 diallers are designed for

use on the BRI (ISDN-2).

Signalling

Instead of the phone company sending a ring voltage

signal to ring the bell in your phone ("In-Band signal"), it

sends a digital packet on a separate channel ("Out-of-

Band signal"). The Out-of-Band signal does not

interfere with established connections. No bandwidth is

taken from the data channels and call setup time is

quick. An ISDN call setup usually takes less than 2

seconds.

The signalling also indicates who the caller is, what

type of call it is (data/voice), and what number was

dialled. Available ISDN phone equipment is then

capable of making intelligent decisions on how to direct

the call.

Point to Multi Point Configuration (PTMP

ATS7100/ATS7110)

PTMP configurations are most common in a standard

BRI ISDN network (also called ISDN-2).

The maximum number of ISDN terminals that can be

connected to a BRI line is eight.

Point to Point Configuration (PTP only for

ATS7100)

PTP configurations are used when only one ISDN

terminal is connected to the ISDN network. In most

cases, the connected device will be a PABX.

Note: The ATS7100 must always be connected before

the PABX.

ISDN TEI values

It is possible to connect up to 8 devices to the ISDN S0

bus (PTMP). The NT1 keeps track of these devices by

using the Terminal Endpoint Identifier (TEI). This TEI is

an identification number that can have the following

values:

0-63 Fixed TEI (programmed by user)

64-126 Automatic TEI (assigned by the NT1)

127 Group TEI (message from NT1 to all devices)

When using the ATS71xx in a Point-to-MultiPoint

configuration for reporting using the analogue protocols

(like Sia, Contact ID), it will get a TEI value

automatically. This TEI value can be any value between

64 and 126.

In a Point-to-Point configuration there can only be one

device (application) on the bus, so there will be only

one TEI value. This TEI value for a Point-to-Point

configuration is 0 (fixed).

For X25 over D-channel reporting, fixed TEI values are

used. The used values are country dependent. In the

Netherlands, the TEI values are typically assigned as

follows:

1, 11, 21, … Digi-Access-Pin (Pay terminals)

2, 12, 22, … Digi-Access-Alarm

3, 13, 23, … Digi-Access-Standard

The first Digi-Access-Alarm device on the S0 bus will

get the TEI value 2 assigned (default), an optional

second Digi-Access-Alarm device TEI value 12, etc.

This TEI value needs to be programmed by the installer

in menu 19.9.

1.2. ATS7100

The ATS7100 uses the ISDN B-channel for

communication with the alarm processing system or for

up and download panel programming. The ATS7100 is

designed for Point to Multi Point configurations as well

as Point to Point configurations

1.3. ATS7110

The ATS7110 uses the ISDN D-channel for

communication with the alarm processing system.

The principle of D-channel communication in an

intrusion environment is related to a special service on

a BRI ISDN line, which will be provided by the local

Telephone Company. This service gives access to the

so-called X-25 network and is available in a number of

countries of Europe, for example:

Netherlands: Digi-Access Alarm (300 bps)

Digi-Access Standaard (9600 bps)

Belgium: D-Watch (300 bps)

D-Watch Pro (9600 bps)

BRI consists of two 64 kb/s B

channels and one 16 kb/s D

channel for a total of 144 kb/s.

This basic service is intended

to meet the needs of most

individual users.

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