ADTRAN DSU 56 user manual Save These Important Safety Instructions

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The following conventions are used in this manual.

Notes provide additional useful information.

Cautions signify information that could prevent service interruption.

Warnings provide information that could prevent damage to the equip- ment or endangerment to human life.

Important Safety Instructions

When using your telephone equipment, please follow these basic safety precautions to reduce the risk of fire, electrical shock, or personal injury:

1.Do not use this product near water, such as near a bathtub, wash bowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool.

2.Avoid using a telephone (other than a cordless-type) during an electrical storm. There is a remote risk of shock from lightning.

3.Do not use the telephone to report a gas leak in the vicinity of the leak.

4.Use only the power cord, power supply, and/or batteries indicated in the manual. Do not dispose of batteries in a fire. They may explode. Check with local codes for special disposal instructions.

Save These Important Safety Instructions

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Contents DSU 56/64 Page Save These Important Safety Instructions Important Safety InstructionsAffidavit Requirements for Connection to Digital Services Page Page Service Type Digital Facility Service Order Code Canadian Emissions Requirements Canadian Equipment Limitations Limited Product Warranty Repair and Return Customer Service, Product Support Information, and TrainingPresales Inquiries and Applications Support Post-Sale SupportTraining Table of Contents Appendix A. Pinouts Appendix B. Specifications Index Index-1 DSU 56/64 Unit List of FiguresList of Figures Xvi List of Tables List of Tables Xviii Product Overview IntroductionNetwork Status Red Front PanelLoop Test Status/Error Yellow/RedBeing utilized for testing Test SwitchesDSU 56/64 Rear Panel Rear PanelUNPACK, INSPECT, Power UP InstallationUp On ConfigurationClear to Send Delay CS Delay SW Switch Position Clear To Send CS SW Down NormalData Set Ready SR SW Down On Antistream SWDown Off Carrier Detect CD SE Down NormalUp 64 kbps Remote Digital Loopback RDL SW Down EnableUp Disable Loop Rate SW Down 56 KbpsDTE Connections Default Option Switch SettingsSwitch Position Setting Network ConnectionsInstallation Test Modes Self TestDTE only Test Near END TestsDTE with Test Pattern TP DTE and Loop Test LL DTE with TP Test DiagramDTE and Loop Test Diagram Loop only Test RT Loop Only Test DiagramRemote Digital FAR END TestsTest Pattern Ptrn Remote Tests Test Modes Appendix a Pinouts Table A-2. V.35 DTE Pinouts PinDescription Specifications and Features Appendix B SpecificationsEnvironment DiagnosticsPower Hardware SpecificationsIndex Index-2

DSU 56 specifications

The ADTRAN DSU 56 is an essential device for businesses and organizations looking to establish reliable serial communication over digital circuits. A Data Service Unit (DSU) acts as a bridge, converting digital data from a Local Area Network (LAN) into a format suitable for transmission over telephone lines or other digital links. The DSU 56 is specifically designed to operate at 56 Kbps, making it a vital component in many networking setups where higher bandwidth is unnecessary.

One of the main features of the ADTRAN DSU 56 is its ability to support a variety of interfaces. It is equipped with both V.35 and RS-232 ports, allowing for flexible connectivity options to diverse networking equipment and configurations. This versatility ensures that organizations can easily integrate the DSU 56 into their existing telecommunications infrastructure.

The DSU 56 is built on advanced technologies that ensure efficient data transfer and reliability. It incorporates error correction mechanisms and extensive diagnostic capabilities, which help identify and troubleshoot issues quickly. This is particularly important in mission-critical applications where downtime can lead to significant operational disruptions.

In addition to reliable data conversion, the DSU 56 offers features like loopback testing and performance monitoring. These functionalities enable network administrators to assess the health and performance of the connection with ease. Loopback tests can be initiated locally or remotely, allowing for thorough testing of the entire data path without disrupting ongoing operations.

Another notable characteristic of the ADTRAN DSU 56 is its compact and robust design. It is built to withstand various operating conditions, making it suitable for deployment in different environments, including data centers and remote installations. The device is also energy efficient, contributing to lower operational costs.

The DSU 56 supports various protocols, such as Frame Relay and PPP, ensuring compatibility with numerous public and private network infrastructures. This adaptability makes it a valuable asset for businesses transitioning to digital communication systems or those seeking to enhance their existing setups.

In conclusion, the ADTRAN DSU 56 stands out as a reliable and versatile solution for organizations needing to facilitate effective data communication over digital circuits. Its robust features, combined with advanced technologies, position it well in the marketplace, making it a choice for businesses focused on maintaining high-quality connectivity.
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