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Lucent Technologies 7400B manual Introduction

Models: 7400B

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DEFINITY Communications System

CHAPTER 1: INTRODUCTION

7400B Data Module

 

User’s Guide

Page 1-1

 

 

CHAPTER 1: INTRODUCTION

This chapter discusses the basic operating features of the 7400B Data

Module and describes the external indicators and connectors.

The data module provides an asynchronous data service link between a

Data Terminal Equipment (DTE) device and the following AT&T digital

PBX equipment:

●DEFINITY™ Communications System Generic 1

●DEFINITY Communications System Generic 2

●System 75

●System 85

Note: Unless a specific DTE device is intended, the words terminal device shall be used throughout this guide to represent any applicable DTE device, including a dumb terminal, a printer, a plotter, or a personal computer (PC) with an appropriate data communications software package.

An EIA-232-D standard interface (formerly EIA recommended standard RS-232-C) connects the terminal device to the 7400B Data Module, and a standard Digital Communications Protocol (DCP) interface (using a type D8W modular telephone cord) connects the data module to the digital PBX.

An internal DIP-switch option allows the 7400B Data Module to be set for use either with or without a telephone. In without-telephone mode, the data module supports data service only, but in with-telephone mode the data module provides simultaneous data and voice service (requires an associated AT&T 7400-series DCP digital voice terminal).

Note: If a 7400-series voice terminal with data features is used with the 7400B Data Module, data service is provided by the 7400B Data Module and the data features of the voice terminal cannot be used.

The 7400B Data Module uses a subset of the industry-standard AT command set and supports transmission speeds of 300, 1200, 2400, 4800, 9600, and 19,200 bps.

Additional features of the 7400B Data Module, described in later chapters of this manual, include:

●non-volatile, read-write memory for storing two data options profiles and up to four telephone numbers

●automatic speed and parity adjustment

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Lucent Technologies 7400B manual Introduction
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7400B specifications

The Lucent Technologies 7400B is a notable entry in the landscape of telecommunications and networking technology, showcasing an innovative blend of features and capabilities that cater to the evolving demands of modern communication systems. Released as part of the company's broader portfolio aimed at enhancing network efficiency and reliability, the 7400B addresses the needs of both voice and data transmission organized around high-performance protocols.

One of the main features of the Lucent Technologies 7400B is its advanced signal processing capabilities. The device is built to handle a significant amount of bandwidth, making it suitable for high-capacity environments where data traffic can fluctuate dynamically. With its ability to support various signaling protocols, the 7400B is adept at integrating with existing infrastructure while providing the flexibility required to adopt emerging technologies.

The 7400B employs state-of-the-art voice encoding and compression techniques that optimize the quality of voice communications. This technology ensures clarity and minimizes latency, which is crucial for enterprises relying heavily on voice-over-IP (VoIP) applications and unified communications. The system supports multiple codecs, enabling it to seamlessly manage both traditional telephony and next-generation voice services.

In terms of reliability, the Lucent 7400B features robust redundancy protocols, ensuring continuous service availability even in the face of potential hardware failures or unexpected disruptions. It also includes built-in diagnostic tools that facilitate rapid troubleshooting, allowing technicians to identify and resolve issues efficiently. This focus on reliability makes the 7400B a preferred choice for critical business applications where downtime can lead to significant productivity losses.

The integration of advanced networking technologies such as Quality of Service (QoS) further enhances the performance of the 7400B. This capability ensures that high-priority applications receive the necessary bandwidth, maintaining optimal performance levels regardless of overall network traffic loads.

Moreover, the Lucent Technologies 7400B is designed with scalability in mind. Organizations can start with a basic configuration and expand their capacity as needed, thus ensuring that their investment remains relevant as their communication demands grow. This scalability is complemented by a user-friendly management interface, allowing network administrators to configure and monitor the system with ease.

In summary, the Lucent Technologies 7400B stands out for its advanced signal processing, voice encoding capabilities, reliability features, and scalability. These characteristics make it a vital component for any organization looking to enhance their telecommunications infrastructure and meet the increasingly complex communication needs of today’s digital landscape.