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XEISDNS

ISDN Terminal Adapter Module with S/T Interface and Channel Bonding

Xecom 

XEISDNS

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ISDN Terminal Adapter Module with S/T Interface and Channel Bonding

Description

The XEISDNS integrated ISDN Terminal

Adapter offers an easy to use, high performance,

component-level solution for equipment designs

needing access to ISDN service. The module can

directly connect to a host processor through its on-

board serial TTL level interface and link to the

ISDN subscriber line S/T interface which is stan-

dard in most European countries.

The device is designed for the ISDN Basic Rate

Interface (BRI) which consists of two 64 k bps

bearer (B) channels for data or voice and one delta

(D) channel for signaling. The module can provide

a full 128k bps synchronous data channel by com-

bining the two bearer channels.

Alternatively, one 64k bps channel can be

dedicated to data while the other can be made

available for analog phone/fax/modem calls with

the addition of the XEISDNP Analog Telephone

(POTS) Equipment Interface. Together these pro-

vide the user with a complete ISDN terminal

adapter function in two compact modules.

XEISDNS is designed to accommodate a wide

range of software and protocols. It adapts to both

single-link and multi-link Point-toPoint Protocol

(PPP), as well as Asynchronous Inverse Multiplex-

ing (AIM) up to 115.2k bps, and to synchronous

BONDING to 128k bps.

Built-in ISDN control firmware supports all the func-

tions necessary for setup and configuration of the terminal

adapter and the ISDN line. Configuration can be accom-

plished via an extended AT command set, a menu-driven

setup utility, or factory default/user stored configuration

profiles.

The built-in ISDN Monitor firmware has fifteen com-

mands supporting customer program development and

download. The 256Kx16 Flash memory is designed to

support custom control program downloading. By changing

a configuration pin the XEISDNS can boot-up from the

ISDN-Monitor or a user developed program as well as the

built-in ISDN control program.

Features

· Small size: 2.75" x 1.38" x 0.42"

· Motorola MC68302 Integrated Multi-protocol Proces-

sor with RISC controller. 128K x 16 SRAM, 256K x

16 Flash Memory and 8K x 8 EEPROM included

· ISDN Basic Rate Interface ETS 300 012 compliant, “S/

T” reference point.

· V.110 and V.120 rate adaptation, point to point protocol

(PPP), Multi-link PPP, Asynchronous Inverse Multi-

plexing (AIMux), and synchronous BONDING protocol

· Switch compatibility with ETSI (Euro ISDN). Layer 1:

ETS 300 012, Layer 2: ETS 300 125, Layer 3 ETS 300

102-1 and 102-2

· EIA-232E/V.24 ready serial interface at TTL levels (RS-

232-TTL)

· 300 to 115,200 bps asynchronous, 1200 to 64,000 bps

synchronous data rate; up to 128k bps with BONDING

protocol

· Menu-driven and stored configurations

· Control outputs to interface with XEISDNP Analog

Telephone (POTS) Equipment Interface module

· On-board ISDN Monitor supports user program down-

loading and system debugging

· Jumper configurable memory addressing allows easy

change from Development to Application mode (using

built-in ISDN control program or user developed pro-

gram)

XECOM

(1)

XEISDNS

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