Configuration Option Tables

Synchronous Data Port Options Menu

For Synchronous Data Port Options, refer to Table A-2. To access the

Synchronous Data Port Options screen, follow this menu selection sequence:

Main Menu → Configuration → Load Configuration From → SYNC Ports

Table A-2. Synchronous Data Port Options (1 of 3)

Port Type

Possible Settings: E530A, V.35, RS449, X.21

Default Setting: E530A

Determines the port type for the data port.

E530A ± The port is configured as an EIA-530A compatible DCE. An EIA-530 compatible DTE can be connected directly to the DB25 Port connector on the rear panel of the unit.

V.35 ± The port is configured as a V.35 compatible DCE. A V.35 compatible DTE can be connected using an MS34 to DB25 adaptor cable to connect to the DB25 Port connector on the rear panel of the unit.

E530A ± The port is configured as an RS449 compatible DCE. An RS449 compatible

DTE can be connected using a DB37 to DB25 adaptor cable to connect to the DB25

Port connector on the rear panel of the unit.

X.21 ± The port is configured as an X.21 compatible DCE. An X.21 compatible DTE can be connected using a DB15 to DB25 adaptor cable to connect to the DB25 Port connector on the rear panel of the unit.

Payload Rate

Possible Settings: 64, 128, 192, 256, 320, 384, 448, 512, 576, 640, 704, 768, 832, 896, 960, 1024, 1088, 1152, 1216, 1280, 1344, 1408, 1472, 1536, 1600, 1664, 1728, 1792, 1856, 1920, 1984, 2048

Default Setting: 128

NOTE: Payload rates of 1088 kbps and higher pertain only to the 2 Mbps termination unit.

Specifies the payload rate of the port. This option is not displayed on the unit when AutoRate is enabled or the unit is configured as an NTU. The LTU configures the payload rate for the NTU when AutoRate is disabled.

64 to 2048 ± Sets the payload rate in kbps when AutoRate is disabled (unit is configured as fixed rate).

Transmit Clock Source

Possible Settings: Internal, External

Default Setting: Internal

Specifies whether the transmitted data for the synchronous data port is clocked using an internal clock provided by the LTU (synchronized to the clock source specified by the clock source configuration option) or an external clock provided by the DTE connected to the synchronous data port. If an external clock is used, it must be synchronized to the same clock source as the LTU.

Internal ± Indicates the clock is provided internally by the 7975 Termination Unit on the

TXC interchange circuit DB (CCITT 114).

External ± Indicates the clock is provided externally by the DTE on the XTXC interchange circuit DA (CCITT 113). Use this selection if the clock source is set to the data port.

A-4

December 1998

7975-A2-GB20-40

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Paradyne 7975 manual Synchronous Data Port Options Menu, Table A-2. Synchronous Data Port Options 1, Payload Rate
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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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