Appendix C Acronyms/Abbreviations

ACK

acknowledgment

ANSI

American National Standards Institute

AR

access rate

ARP

address resolution protocol

async

asynchronous

BECN

backward explicit congestion notification

BOP

bit oriented protocol

CCITT

Consultive Committee for International Telephony and Telegraphy

CD

carrier detect

CO

central office

CPE

customer premise equipment

CRC

cyclic redundancy check

CS

clear to send

CSU

channel service unit

CTS

clear to send

dB

decibel

DBU

Dial backup

DCD

data carrier detect

DCE

data communications equipment

DDS

digital data service

DE

discard eligible

DLCI

data link connection identifier

DSAP

directory scope analysis program

DSR

data set ready

DSU

data service unit

DTE

data terminal equipment

DTR

data terminal ready

FDL

facility data link

FECN

forward explicit congestion notification

FEP

front end processor

FIFO

first in first out

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© 2004 ADTRAN, Inc

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ADTRAN T1 ESF CSU ACE user manual Appendix C Acronyms/Abbreviations

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.