Digicom SNT 13 User guide

Brand: Digicom

Model: SNT 13

Type: User guide

1.1Digicom SpA

SNT12 & SNT13 ENGLISH Generality

1. GENERALITY

This operating manual describes the features of the SNT12 and SNT13

Digicom Terminal Adapter.

All products provide the same commands and registers because they use the

same configuration modes and the same rensponse messages.

Unless othervise specified the descriptions in this manual apply equally to

SNT12 and SNT13. The text will specify when informations refer only to a

particular model/family.

Order Code SNT12 ..........................................................................8D5391

(1B+D, V.110 Async, V.120, e V42bis, V34/V17 integrated Modem/Fax)

Order Code SNT13 ..........................................................................8D5400

(1B+D, V.110 Async, V.120 e V.42bis)

1.1. PRODUCTS DESCRIPTION

SNT12 and SNT13 are internal installation XT/AT bus Terminal Adapters.

All Digicom Terminal Adapters familys are developed to comply with

EUROISDN NET 3 interim CTR3 base access standard.

SNT12 and SNT13 allows the following ISND network connections:

PRODUCT NUMBER OF RATE ADAPTION INTEGRATED

ASYNCRONOUS V34/V17

DATA CHANNEL MODEM/FAX

SNT12 1 up to 115,2 Kbit/s. V110, V120, V42bis YES

SNT13 1 up to 115,2 Kbit/s. V110, V120, V42bis NO

SNT12 presents, in one apparatus, two devices: a Terminal Adapter and a

Modem/Fax V.34/V.17 to be used to support remote analog connections.

The rate adaption on the digital channel is complied in according to the CCITT

V110 and V120 standards.

1.2 Digicom SpA

SNT12 & SNT13 ENGLISH Generality

Other features of the Terminal Adapters are the following:

lAT command set

lAsynchronous V25bis command set

lV42bis data compression

lAutologon

lCall - back

lAutobaud up to 115200 bit/s.

l4 selectable factory profile

l4 selectable user configuration

l8 stored phone number for AT and V25bis command set

lAnalog Local Loop and Digital Local Loop

lModem standards V21, V22, V22bis, V23, V32, V32bis, V Fast Class,

V34 (SNT12 only)

lFax standards V27ter, V29 and V17 (SNT12 only)

lModem Error Correction MNP4, MNP10 and V42 (SNT12 only)

lModem Data Compression MNP5 and V42bis (SNT12 only)

The Digicom Terminal Adapters are be able to support ISDN network base

services and advanced services.

Now it is important describe the difference between base services and

advanced services present into the ISDN network:

BASE SERVICES:

These kind of services are available when you provide an agreement

with the ISDN network administrator.

ADVANCED SERVICES:

These services are not included in the base agreement with the ISDN

network administrator. To activate the advanced services it is neccessary

to make a request to the ISDN network administrator.

In the following tables, are described the base and advanced services available

in the Digicom Terminal Adapters:

1.3Digicom SpA

SNT12 & SNT13 ENGLISH Generality

BASE SERVICES

Type of sevice Description Activation Present into

Digicom T.A.

Telephone recording Is a base service whitch permits to know the number Implemented

meter of units present in the telephone recording meter. in the 3.0

new firmware

release

Calling Line Is a base service offered to the called party whitch YES

Identification provides the calling party’s ISDN-number,

Presentation[CLIP] possibly with sub-address information, to the called party.

SUPPLEMENTARY SERVICES

Type of sevice Description Activation Present into

Digicom T.A.

Advice of charge Is a supplementary service allowing the user It is necessary Implemented

payng for a call to be informed of to make a in the 3.0

usage-based charging information. request to the new firmware

SDN network release

administrator

Multi Subscriber Is a supplementary services whitch provides It is necessary YES

Number [MSN] the possibility fo assign multiple ISDN to make a

numbers to a single interface. request to the

SDN network

administrator

Subaddressing[SUB] Is a supplementary service whitch permits It is a sequence YES

to have an addressing into a ISDN network. of AT commands

It is possible identify a specific terminal using

an address stored into the TA.

ATTENTION

If you want to use the supplementary services, it is very important to

request the activation to the ISDN network administrator !!!

1.4 Digicom SpA

SNT12 & SNT13 ENGLISH Generality

1.2. TECNICHAL DESCRIPTION

1.2.1. Standards Compatibility

The SNT12 and SNT13 comply with the following standards:

ISDN ETS 300 012 / I430 layer 1

ETS 300 125 / Q920 - Q921 layer 2

ETS 300 102 / Q930 - Q931 layer 3

SAFETY - PROTECTIONS

EN 41003

EN 60950

ETS 300 047-1

ETS 300 047-2

ETS 300 047-3

EMC EN 50082-1

EN55022

1.2.2. Mechanical dimension

Width 157 mm.

Height 106 mm

Depth 20 mm

Weight 400 g.

1.2.3. Electrical description

Consumption: 2 W ca

Supply voltage: +5V, -5V, +12V, -12V (from PC bus)

Digital interface

Interface: XT/AT bus connector

Asyncronous DTE Speed: 300, 1200, 2400, 4800, 9600, 19200, 38400,

57600, 115200 bit/s.

V.110 Line Speed: 1200, 2400, 4800, 9600, 12000, 14400, 19200,

38400bit/s.

1.5Digicom SpA

SNT12 & SNT13 ENGLISH Generality

V.120 Line Speed: 1200, 2400, 4800, 9600, 12000, 14400, 19200,

64000 bit/s.

ISDN interface

Interface: Bus S 1B + D, base access

Connector: RJ 45

Protocol: EUROISDN

Operating temperature

Operating ambient temperature: 0° C ÷ + 45° C

Storage temperature: -20° C ÷ + 80° C

Relative Humidity: from 5% to 92% (If the humidity doesn’t

condense)

PC BUS

INTERFACE

BUS XT/AT

CONNECTOR

UART

73M55 0

MC68302

SWITCH

MODEM

ISDN

RAM

1MBITS

RAM

1MBITS

OT PR OM

2MBITS

FLA SH

EPROM

OT PR OM

2MBITS

FLA SH

EPROM

DATA BUS

ADD BUS

IOM-2 BUS

EEPROM

512

BYTES

PSB2186

TRANSCEIVER

LINE

PROTECT.

LINE

PROTECT.

CLOC K

WART

RESET

ISDN

SERIAL

INT ERFACE

CMD

COMMON

SERIAL

INT ERFACE

MODEM

V34

MO DEM

SERIAL

INT ERFACE

SPEAKER

CODEC

DTMF

DETECTOR

RING

DTMF D IG ITS

LINE

TRANSF.

LINE

TRANSF.

RJ45

CO MMO N

MODE

CH OKE

*= SEZIONI MONTATE SOLO per SNT12

FIG.1.1. BLOCK DIAGRAM SNT12/SNT13

1.6 Digicom SpA

SNT12 & SNT13 ENGLISH Generality

1.3. FUNCTIONAL DESCRIPTION

1.3.1. Autobaud

The TA automatically detects DTE speed (until to 115.2 Kbit/s) and parity

format.

The valid parity formats are the following:

7 bit + even/odd parity

7 bit + mark/space parity

8 bit no parity

1.3.2. V42bis Data Compression

The TA’s allows to select (V.120 asyncronous mode only) the data compression

complying with the CCITT V42bis recommendation, for all the DTE speed

from 300bit/s to 115.2 Kbit/s. It is not usual to apply the data compression on

an ISDN network. For this reason it was developed a V42bis release that,

according to V.120 asyncronous mode, introduce a parameter in the negotiation.

1.3.3. Autologon

It is possible to associate a list of options to the stored phone numbers, that

enable some particular procedures. (ex: call with security password).

These procedures allow to access to the autorized system.

1.3.4. Call-Back

Using this feature “A” emplacement calls “B” emplacement. When the

connection is established “B”, where previously was stored the phone number,

disconnects and calls “A”.

1.3.5. Factory configurations

Using a Hayes command, it is very easy to load 4 different factory configuration

present into the Digicom Terminal Adapters.

1.7Digicom SpA

SNT12 & SNT13 ENGLISH Generality

1.3.6. Diagnostic

When a Digicom Terminal Adapter is turned on, starts automatically an

internal diagnostic self test to verify the integrity of hardware and software.

Using the AT command it is possible to activate the normal Analog Local

Loop and Digital Local Loop.

1.3.7. Integrated Modem/Fax (SNT12 only)

The integrated Modem/Fax present into the SNT12 comply the following

characteristics:

Modem standard: V.34, V Fast Class, V.32bis, V.32, V.22bis,

V.22, V.21, V.23

Fax standard: V.17, V.29, V.27ter

Error Correction: MNP10, MNP5, V42

Data Compression: MNP5, V42bis

Digicom SNT 13 User guide

Digicom SNT 13 User guide

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