DEFINITY Communications System

CHAPTER 4: OPERATION AND CONFIGURATION

7400B Data Module

 

User’s Guide

Page 4-9

 

 

 

 

If nnn is 0 (the factory-default setting), the automatic answer feature is

 

 

turned off. The red LED on the front of the data module labeled “AA”

 

 

lights when the automatic feature is turned on.

REMOTE SITE USE

 

The 7400B Data Module can be used at a remote site as a dedicated

 

 

service device to answer incoming data calls, send data to a remote end

 

 

device, and then hang up. For example, you may wish to provide access

 

 

to a printer from a remote site.

 

 

The following is a typical command line you might use for setting up

 

 

this operation (spaces are used here for readability, but are not required):

 

 

 

at &c1 &d2 q1 s0=1 &w0 &y0 [ Enter ]

 

 

Following the at prefix, the commands in the example produce the

 

 

following

results:

 

 

●

&C1

sets the Data Carrier Detect (DCD) circuit of the data module

 

 

 

to operate according to the EIA standard.

 

 

●

&D2

sets the data module to go on hook when an on-to-off transition

 

 

 

 

 

 

is detected on the Data Terminal Ready (DTR) input, disconnecting

 

 

 

the call

 

 

●

Q1 turns off the result codes that would be the normal responses of

 

 

 

the data module to commands that it receives.

 

 

●

S0=1

turns on the automatic answer feature and causes the data

 

 

 

module to answer an incoming data call on the first ring.

 

 

●

&W0

causes the current configuration to be stored in data profile

 

 

 

storage location 0.

 

 

●

&Y0

selects the configuration stored in data profile storage location

 

 

 

0 to become the current configuration each time the data module is

 

 

 

powered on

 

 

Refer to Appendix A, “AT Command Set,” for a complete description

 

 

of each command used in this section.

 

 

 

RESET AND

Two commands are available for recovering from various data

CONFIGURATION RECALL

communications problems. You can reset the 7400B Data Module and

recall one of two stored data profiles as the current configuration. The form for this command is as follows:

atzn [ Enter ]

where n is the number 0 or 1, representing the data profile to be recalled.

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Lucent Technologies 7400B manual Remote Site USE, Reset, Configuration Recall
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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.
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