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XEISDNB

ISDN Terminal Adapter with NT1 and Channel Bonding

Xecom 

XEISDNB

2/99

ISDN Terminal Adapter with NT1 and Channel Bonding

Description

The XEISDNB integrated ISDN Terminal Adapter offers

an easy to use, high performance, component-level solu-

tion for equipment designs needing access to ISDN ser-

vice. The module can directly connect to a host processor

through its on-board serial TTL level interface and link to

the ISDN subscriber line U interface with its integrated

NT1.

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 combining 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 Inter-

face. Together these provide the user with a complete

ISDN terminal adapter function in two compact modules.

Built-in ISDN control firmware supports all the functions

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 chang-

ing a configuration pin the XEISDNB 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-proto-

col Processor with RISC controller. 128K x

16 SRAM, 256K x 16 Flash Memory and

8K x 8 EEPROM included

· ISDN line U interface (integrated NT1) with

2B1Q encoding (ANSI T1.601) for North

American usage

· V.120 rate adaptation, point to point protocol

(PPP), Multi-link PPP, Asynchronous Inverse

Multiplexing (AIM), and synchronous

BONDING protocol

· ISDN control program allows connection

with AT&T 5ESS, Northern Telecom DMS

100 and National ISDN-1 central office

switches

· 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 Inter-

face module

· On-board ISDN Monitor supports user pro-

gram downloading and system debugging

· Jumper configurable memory addressing al-

lows easy change from Development to Ap-

plication mode (using built-in ISDN control

program or user developed program)

XECOM

(1)

XEISDNB

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