ADTRAN T1 ESF CSU ACE user manual No Loopback

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T1 ESF CSU ACE User Manual

Chapter 3. Operation

 

 

Tests are used to control the activation of loopbacks, the initiation of data test patterns, and self test execution.

1)LOCAL LOOPBK, Submenu of 4)TEST

Four choices are available for setting the local loopback:

NO LOOPBACK

Deactivates the loopback

DTE ON

Activates the DTE loopback

LINE ON

Activates the line loopback

PAYLOAD ON

Activates the payload loopback

 

 

 

 

 

 

Figure 3-20. Local Loopback Test Screen

2)REM LB, Submenu of 4)TEST

Activates the same loopbacks as the LOCAL LOOPBCK but at the far end. This uses either the inband loop-up code as specified by AT&T 62411 for line loopback (ATT In-Band LLB), or the FDL as specified in ANSI T1.403 for line loopback codes. An FDL (formerly TABS) maintenance message corresponding to AT&T TR54016 can be used for payload loopback as well:

NO LOOPBACK Deactivates the loopback.

AT&T INBAND LLB Activates the line loopback using inband code.

ANSI FDL LLB Initiates the transmission of an FDL line loop-up code toward the far end.

AT&T FDL PLB Initiates the transmission of the PLB maintenance messages on the FDL.

When a loopback method is selected, the T1 ESF CSU ACE displays LOOPING in the top right corner of the LCD and the yellow LOOPBACK LED is turned on. When the T1 ESF CSU ACE determines that the far-end T1 ESF CSU ACE has looped up, the T1 ESF CSU ACE displays LOOPED. If the T1 ESF CSU ACE does not recognize the remote T1 ESF CSU ACE looped up after about 10 seconds, the T1 ESF CSU ACE sends the appropriate loop-down code and displays FAILED, and the LOOPBACK LED is turned off.

Excessive errors on the T1 line can cause this failure. The FDL loopbacks fail if the FDL is not intact from one end point to the other. FDL loopbacks are valid only in the ESF framing mode.

61204025L1-1B

© 2004 ADTRAN, Inc

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Contents T1 ESF CSU ACE To the Holder of the Manual TrademarksSave These Important Safety Instructions Safety InstructionsAffidavit Requirements for Connection to Digital Services Within the telecommunications network REN/SOC FIC Usoc 61204025L1-1B ADTRAN, Inc ADTRAN, Inc Limited Product Warranty Warranty and Customer ServiceCustomer Service, Product Support Information, and Training Have your unit serial number available when you call ADTRAN, Inc Table of Contents Table of Contents List of Figures List of Figures List of Tables List of Tables T1/FT1 Overview T1 Service OfferingsT1 ESF CSU ACE Overview T1 ESF CSU ACE Application T1 ESF CSU Rear View FeaturesInterface Features Front Panel Four Methods of ControlAdtran PC Program SnmpSelf Test T1 ESF CSU ACE TestingNetwork Loopbacks Loopback TestsApplications Pattern GenerationGeneral Data Application General Voice Application Unpack and Inspect Power ConnectionShipped by Adtran Provided by CustomerRJ-48C Connectors WiringEIA-232 Connector POWER-UP Testing and Initialization Installation Front Panel Operation OperationDescription of Menu Tools General Front Panel Menu OperationExample Menu Operation Selecting a Submenu Item Setting/Cancelling the Data FieldExiting or Returning to Previous Menus View Display Only Data FieldsMenu Structure T1 ESF CSU ACE Menu Tree 1STATUS Detailed Menu OperationStatus Menu Tree SES Frame Bit Errors 2CONFIG ESF Enable Disable 2ALARMS 1FORMAT 1SOFTWARE REV, Submenu of 3UTIL 2SHELF Snmp ID No Loopback No Pattern Appendix a Pinouts Appendix A. Pinouts Specifications and Features Appendix B Specification SummaryMtbf Appendix C Acronyms/Abbreviations Frad SNA Appendix C. Acronyms/Abbreviations Appendix D Glossary CRC DTE Hdlc PVC Sdlc Numerics IndexIndex

T1 ESF CSU ACE specifications

The ADTRAN T1 ESF CSU ACE is a robust and essential device designed for the efficient transmission of data over T1 lines. As a Channel Service Unit (CSU) and Digital Service Unit (DSU) in one, it meets the needs of service providers and businesses that require reliable communication. This powerful device offers a seamless connection between customer premises equipment (CPE) and the public switched telephone network (PSTN).

One of the main features of the ADTRAN T1 ESF CSU ACE is its support for both T1 and E1 line formats, making it versatile for different telecommunications environments. The unit comes with advanced error correction capabilities, which significantly minimize errors during data transmission, ensuring high-quality service. The application of Extended Superframe Format (ESF) further enhances the error detection capability, thus providing greater reliability and service availability.

The CSUs in the ADTRAN T1 ESF CSU ACE are designed with integrated diagnostics that allow users to monitor real-time network performance. Features such as loopback testing and local/remote diagnostics help technicians quickly identify and troubleshoot issues, which saves time and reduces disruptions. The built-in LED indicators give immediate status updates on power, alarms, and line integrity, allowing for ease of use and management.

In terms of scalability, this CSU can accommodate growing business needs with its flexible configuration options. Users can manage and configure the device through an intuitive command line interface (CLI), making it accessible for network administrators of all levels. Furthermore, the unit typically supports full duplex operations, enabling simultaneous transmission and reception of data, which optimizes network efficiency.

The ADTRAN T1 ESF CSU ACE also adheres to industry standards, ensuring compliance with various network requirements. It includes surge protection and ensures a robust design that is suitable for deployment in diverse environments, from small offices to larger enterprise networks.

In conclusion, the ADTRAN T1 ESF CSU ACE stands out as a reliable, feature-rich solution for businesses requiring T1 connectivity. With its combination of high performance, robust diagnostics, and comprehensive error correction, this device is an essential component for ensuring efficient and uninterrupted communication in today's digital landscape.
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