Troubleshooting

326X Series Modem Diagnostic Tests

The modem supports loopback, busy out, and retrain tests to assist you in isolating network problems. These tests analyze the telephone line and the local and remote modem’s performance. These tests can be initiated from the modem’s front panel, using AT commands from an attached PC or terminal, or from a network management system.

The following table shows the AT commands to initiate and terminate tests. The steps following the table describe how to initiate and terminate each test from the front panel. (Refer to your network management system documentation for instructions on initiating and terminating tests from the network management system.)

IMPORTANT: The tests described in this section cannot be run simultaneously. Because each test interrupts data flow in a network, notify equipment users at both the local and remote sites before starting tests.

For details on tests, refer to Chapter 4 of the 326X Series Modem Reference Guide.

 

 

AT

Test

Description

Command

 

 

 

Local Analog

Tests the local modem’s transmit and receive circuits

&T1

Loopback

by looping local DTE data from the modem’s

 

 

transmitter to its receiver.

 

Local Analog

Tests the local modem’s transmit and receive circuits

&T8

Loopback Pattern

with an internally generated test pattern.

 

Remote Digital

Using local DTE data, this test examines the transmit

&T6

Loopback

and receive circuits of the local and remote modems

 

 

and the telephone line.

 

Remote Digital

Tests the transmit and receive circuits of the local and

&T7

Loopback Pattern

remote modems and the telephone line.

 

Data Mode Pattern

The modem uses internally generated test patterns to

Not

 

provide data and separately test the inbound and

applicable

 

outbound halves of the transmission path.

 

Local Digital

Using the remote DTE data for the test, the telephone

&T3

Loopback

lines and the remote modem circuits are tested.

 

Busy Out

Allows the modem to appear busy to incoming calls.

H1

Retrain

Lets you manually retrain local and remote modems.

O1

(Terminate)

Terminates any test in progress.

&T0

 

 

 

6-10 Troubleshooting Guide

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Telenetics V.34-SDC, 326X V.34, V.32bis Series manual 326X Series Modem Diagnostic Tests, Test Description Command
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326X V.34, V.32bis Series, V.34-SDC specifications

Telenetics has been a key player in the field of telecommunications, offering advanced modem solutions that cater to diverse communication needs. Among their notable products are the V.34-SDC and V.32bis series, including the 326X V.34 modem. These modems have been designed to enhance data transmission reliability and speed in various applications.

The Telenetics V.34-SDC modem represents a significant leap in technology, supporting data rates of up to 28.8 Kbps. This modem utilizes the advanced V.34 modulation scheme, which optimizes the use of existing telephone lines to deliver impressive performance, especially for users requiring high-speed data transmission. The V.34-SDC model also features robust error correction and data compression techniques, ensuring that users receive accurate data even over less than ideal connections. With its extended line-conditioning capabilities, the V.34-SDC modem can efficiently handle long distances and poor line conditions.

Equally noteworthy is the V.32bis series, which provides backward compatibility with V.32 modems, enabling seamless integration into existing systems. Capable of speeds up to 14.4 Kbps, the V.32bis modems are ideal for businesses and environments where legacy systems remain in use. It features adaptive equalization and advanced echo cancellation, ensuring a clear signal is maintained throughout the data transmission process. This versatility allows users to connect with various devices across different infrastructures.

The 326X V.34 modem further exemplifies Telenetics' commitment to high performance. It combines the V.34 capabilities with enhanced security features, offering users encryption options for sensitive data. This is particularly crucial for businesses that need to safeguard their information against potential vulnerabilities during transmission. The 326X also supports various data communication protocols, making it adaptable for multiple platforms and applications.

In summary, Telenetics’ V.34-SDC, V.32bis series, and 326X V.34 modems stand out for their high-speed data transmission, compatibility, advanced error correction, and security features. These technologies make them excellent choices for both enterprise and networking applications where reliable communication is vital. Telenetics continues to innovate, delivering modem solutions that meet the evolving demands of the telecommunications landscape.
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