ADTRAN DSU 56 user manual Canadian Emissions Requirements

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Federal Communications Commission Radio Frequency Interference Statement

This equipment has been tested and found to comply with the limits for a Class A dig- ital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio fre- quency energy and, if not installed and used in accordance with the instruction man- ual, may cause harmful interference to radio frequencies. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

Shielded cables must be used with this unit to ensure compliance with Class A FCC limits.

Change or modifications to this unit not expressly approved by the party re- sponsible for compliance could void the user’s authority to operate the equip- ment.

Canadian Emissions Requirements

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard enti- tled “Digital Apparatus," ICES-003 of the Department of Communications.

Cet appareil nuerique respecte les limites de bruits radioelectriques applicables aux appareils numeriques de Class A prescrites dans la norme sur le materiel brouilleur: "Appareils Numeriques," NMB-003 edictee par le ministre des Communications.

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Contents DSU 56/64 Page Important Safety Instructions Save These 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 Customer Service, Product Support Information, and Training Presales Inquiries and Applications SupportPost-Sale Support Repair and ReturnTraining Table of Contents Appendix A. Pinouts Appendix B. Specifications Index Index-1 List of Figures DSU 56/64 UnitList of Figures Xvi List of Tables List of Tables Xviii Introduction Product OverviewFront Panel Network Status RedTest Status/Error Yellow/Red Being utilized for testingTest Switches LoopRear Panel DSU 56/64 Rear PanelInstallation UNPACK, INSPECT, Power UPConfiguration Clear to Send Delay CS Delay SW Switch PositionClear To Send CS SW Down Normal Up OnAntistream SW Down OffCarrier Detect CD SE Down Normal Data Set Ready SR SW Down OnRemote Digital Loopback RDL SW Down Enable Up DisableLoop Rate SW Down 56 Kbps Up 64 kbpsDefault Option Switch Settings Switch Position SettingNetwork Connections DTE ConnectionsInstallation Self Test Test ModesNear END Tests DTE only TestDTE with Test Pattern TP DTE with TP Test Diagram DTE and Loop Test LLDTE and Loop Test Diagram Loop Only Test Diagram Loop only Test RTFAR END Tests Remote DigitalTest Pattern Ptrn Remote Tests Test Modes Appendix a Pinouts Description Table A-2. V.35 DTE PinoutsPin Appendix B Specifications Specifications and FeaturesDiagnostics PowerHardware Specifications EnvironmentIndex 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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