Glossary

DTR

Data Terminal Ready. A signal from the DTE to the modem, sent via Pin 20 of the

 

EIA-232 interface (V.24 circuit 108/1, /2), that indicates the DTE is turned ON and

 

connected to the modem.

EER

Excessive Error Rate. An error rate that is greater than the threshold that has been

 

configured in the device.

EOC

Embedded Operations Channel. An in-band channel between DSL devices, used for

 

4 kbps management data.

ES

Errored Seconds. A second with one or more ESF error events (one or more CRC6 error

 

events or OOFs).

ESF

Extended SuperFrame. The T1 transmission standard that specifies 24 frames as an

 

extended superframe to be used for frame synchronization and to locate signaling bits.

Ethernet

A type of network that supports high-speed communication among systems. It is a

 

widely-implemented standard for LANs. All hosts are connected to a coaxial cable where

 

they contend for network access using a Carrier Sense, Multiple Access with Collision

 

Detection (CSMA/CD) paradigm.

ETSI

European Telecommunications Standardization Institute. An organization that produces

 

technical standards in the area of telecommunications.

E1

A wideband digital interface operating at 2.048 Mbps, defined by ITU recommendations

 

G.703 and G.704. It is used primarily outside North America.

factory defaults

A predetermined set of configuration options containing the optimum settings for operation

 

on asynchronous dial networks.

FAS

Frame Alignment Signal. A loss of signal (LOS) error detection.

FAW

Frame Alignment Word. A loss of synchronization error detection.

FCC

Federal Communications Commission. The Board of Commissioners that regulates all

 

electrical communications that originate in the United States.

FEBE

Far-End Block Error. Block errors reported by remote equipment.

frame relay

A high-speed connection-oriented packet switching WAN protocol using variable-length

 

frames.

FTP

File Transfer Protocol. A TCP/IP standard protocol that allows a user on one host to

 

access and transfer files to and from another host over a network, provided that the client

 

supplies a login identifier and password to the server.

G.703

An ITU recommendation for the physical and logical characteristics of hierarchical digital

 

devices.

G.704

An ITU recommendation for synchronous frame structures.

HDB3

High Density Bipolar Three Zeros Substitution. A line coding technique used to

 

accommodate the ones density requirements of E1 lines.

HDSL

High-bit-rate Digital Subscriber Loop. Provides high bandwidth, bi-directional transmission

 

over copper wire for both T1 and E1 services.

IP

Internet Protocol. An open networking protocol used for internet packet delivery.

IP address

Internet Protocol address. The address assigned to an internet host.

kbps

Kilobits per second. One kilobit is usually taken to be 1,024 bits.

LAN

Local Area Network. A privately owned and administered data communications network

 

limited to a small geographic area.

GL-2

December 1998

7975-A2-GB20-40

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Paradyne 7975 manual Ethernet, Factory defaults, Frame relay, 703, 704, IP address, Kbps

7975 specifications

The Paradyne 7975 is a robust and versatile product that has made significant strides in the realm of data communications. This device primarily facilitates high-speed data transmission, leveraging advanced technologies designed to optimize performance and reliability. One of its standout features is its ability to handle both analog and digital signals, making it an essential tool for various networking environments.

One of the key technologies employed in the Paradyne 7975 is the use of digital signal processing (DSP). This technology enhances the quality of signals transmitted over long distances, reducing the impact of noise and other interferences that can degrade performance. The integration of DSP allows for improved error correction techniques, ensuring data integrity during transmission.

Another notable feature of the Paradyne 7975 is its compatibility with a range of communication protocols. This inclusivity allows users to connect the device seamlessly with existing infrastructure, facilitating a smooth transition to higher data rates without the need for extensive upgrades. The product supports both T1 and E1 lines, catering to various network structures and requirements.

In terms of performance, the Paradyne 7975 boasts data rates of up to 2.048 Mbps for E1 and 1.544 Mbps for T1, allowing for efficient bandwidth utilization. Its architecture is designed for scalability, enabling businesses to expand their networks without encountering significant bottlenecks. Additionally, the device features built-in diagnostics and monitoring capabilities, which provide administrators with real-time insights into network performance and health.

The physical design of the Paradyne 7975 is also noteworthy. It typically comes in a compact form factor that can easily fit into standard telecommunications racks, making it a space-saving solution for data centers and offices. Its rugged construction ensures longevity and reliability, even in demanding environments.

Moreover, the device includes an intuitive user interface that simplifies configuration and maintenance processes, reducing the overall burden on IT staff. Additionally, its adaptive capabilities enable the device to automatically adjust to varying line conditions, ensuring optimal performance at all times.

Overall, the Paradyne 7975 stands out as a comprehensive solution for businesses seeking to enhance their data communication infrastructures. With its advanced features, compatibility, and user-friendly design, it continues to be a preferred choice for organizations looking to leverage high-speed data transmission technologies.