Glossary

AMI

Alternate Mark Inversion. A line coding technique used to accommodate the ones density

 

requirements of E1 or T1 lines.

ATI

Asynchronous Terminal Interface. A menu-driven, VT100-compatible system for

 

configuring and managing the termination unit.

BPV

Bipolar Violation. In a bipolar signal, a one (mark, pulse) which has the same polarity as its

 

predecessor.

bridged tap

Any part of the local loop that is not in the direct talking path between the CO and the

 

service user.

CD

Carrier Detect. The received line signal detector. V.24 circuit 109.

CO

CO. The PSTN facility that houses one or more switches serving local telephone

 

subscribers.

COM port

Communications port. A computer's serial communications port used to transmit to and

 

receive data from a modem. The modem connects directly to this port.

CP

Customer Premises.

CPE

Customer Premises Equipment. Terminal equipment on the service user's side of the

 

telecommunications network interface.

CPU

Central Processing Unit. The main or only computing device in a data processing system.

CRC

Cyclic Redundancy Check. A mathematical method of confirming the integrity of received

 

digital data.

CTS

Clear To Send. A signal indicating that the device is ready for the DTE to transmit data.

 

Usually occurs in response to Request To Send (RTS).

CV

Code Violation. This is equivalent to a BPV. Used with HDB3 coding format.

DCE

Data Communications Equipment. The equipment that provides the functions required to

 

establish, maintain, and end a connection. It also provides the signal conversion required

 

for communication between the DTE and the network.

DCLB

Data Channel Loopback. Loops the data received from the network interface, for all DS0

 

channels allocated to the selected port, back to the network.

DSL

Digital Subscriber Line. The non-loaded, local-loop copper connection between the

 

customer and the first node within the network.

DSLAM

Digital Subscriber Line Access Multiplexer. A platform for DSL modems that provides

 

high-speed data transmission over traditional twisted-pair wiring.

DSR

Data Set Ready. A signal from the modem to the DTE that indicates the modem is turned

 

ON and connected to the DTE.

DTE

Data Terminal Equipment. The equipment, such as a computer or terminal, that provides

 

data in the form of digital signals for transmission.

DTLB

Data Terminal Loopback. Loopback mode that loops the data for a particular synchronous

 

data port back to the port just before it is combined with the rest of the T1 data stream.

7975-A2-GB20-40

December 1998

GL-1

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Paradyne 7975 manual Glossary, Bridged tap, COM port
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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.
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