Manuals / Paradyne / Computer Equipment / Network Card

Paradyne operation manual Configuring the DMD15/DMD15L for Drop and Insert, Data Rate

Models: DMD15 DMD15L

1 201
Download 201 pages 34.1 Kb
Page 85
Image 85

User Interfaces

DMD15/DMD15L IBS/IDR Satellite Modem

 

 

Under Interface menu:

Under Tx Setup menu:

Set INTF to RS-422

Set SCT Source to SCR

Set Tx Clock to SCTE

Method 2 -

Set mode to Closed Net

Under Interface menu:

Under Tx Setup menu:

Set INTF to RS-422

Set SCT Source to SCR

Set Tx Clock to SCTE

4.6 Configuring the DMD15/DMD15L for Drop and Insert

Several dependencies exist when configuring the modem for Drop and Insert (D&I). The following paragraphs explain these dependencies and provide the user with the information required to ensure smooth transition into D&I and to minimize the potential impact of these dependencies.

4.6.1 Data Rate

Data Rate affects the Drop and Insert function in the following ways:

It determines the number of Satellite Channels that will be displayed in the Edit Maps.

It contributes to the Operational Mode selection process. Trying to change the Operational Mode to D&I when a data rate is not set to a valid D&I rate will result in the error message ‘INVALID DATA RATE,’ and the mode change will not be allowed.

It contributes to the Terrestrial Framing Mode selection process. Trying to select a T1- type Drop Mode such as T1-ESF with the mod data rate set to 1920000 bps (a valid E1 D&I rate but not a valid T1 rate) will result in the error message ‘INVALID DROP MODE’ and the selection will not be allowed. Trying to select a T1 type Insert Mode such as T1- D4 with the demod data rate set to 1920000 bps will result in the error message INVALID INSERT MODE and the selection will not be allowed.

Once D&I Mode has been selected, trying to change the data rate to something other than another valid D&I data rate will result in the error message ‘RATE OUT OF BOUNDS’ and the change will not be allowed.

Once D&I Mode has been selected with a T1 Terrestrial Framing Mode, attempting to change the data rate to 1920000 will result in the error message ‘RATE OUT OF BOUNDS’ and the change will not be allowed.

Therefore, the data rate should be entered as the first step in configuring the modem for D&I. The Mod Data Rate should be set according to the number of timeslots to be dropped and the Demod Data Rate should be set according to the number of timeslots to be inserted. The following table gives the allowable D&I data rates based on the number of slots (n) to be dropped or inserted.

n = 1, data rate = 64000 n = 2, data rate = 128000 n = 3, data rate = 192000 n = 4, data rate = 256000 n = 5, data rate = 320000 n = 6, data rate = 384000 n = 8, data rate = 512000 n = 10, data rate = 640000 n = 12, data rate = 768000

4-34

TM051 – Rev. 5.8

Page 84 Page 86
Page 85
Image 85
Paradyne operation manual Configuring the DMD15/DMD15L for Drop and Insert, Data Rate
Page 84 Page 86

DMD15, DMD15L specifications

The Paradyne DMD15L and DMD15 are advanced digital modems designed to enhance communication in a variety of networking environments. As part of Paradyne's robust portfolio of networking solutions, these devices are engineered to deliver reliable and efficient data transmission over both copper and fiber optic connections.

One of the main features of the DMD15L and DMD15 is their capability to support Multiple Protocol Data Units (MPDUs), which enables them to handle a diverse range of network protocols seamlessly. This flexibility makes them suitable for different applications, from industrial automation to telecommunications.

These modems utilize advanced modulation techniques, such as Quadrature Amplitude Modulation (QAM), to maximize data throughput while maintaining signal integrity. This ensures that users benefit from high-speed connections, even in challenging signal environments. Furthermore, the DMD15 series incorporates Error Correction Codes (ECC) that enhance data reliability, effectively reducing packet loss and ensuring data coherence during transmission.

The DMD15L is particularly notable for its long-range capabilities, making it a go-to solution for users requiring extended distances without compromising data quality. It features built-in Adaptive Equalization, which automatically adjusts signal levels to optimize performance over varying transmission distances. This technology is crucial in maintaining consistent high-speed connectivity, especially in environments with variable conditions.

Both models are equipped with user-friendly interfaces that facilitate configuration and management. They support SNMP (Simple Network Management Protocol) for real-time network monitoring, allowing administrators to track performance metrics and identify potential issues before they impact users. The devices also include LED indicators for quick status checks, ensuring that users have immediate visibility of operational conditions.

In terms of physical characteristics, the DMD15 and DMD15L are designed for durability and ease of installation. They come in a compact form factor, making them suitable for deployment in constrained spaces. Additionally, their robust casing is built to withstand harsh environmental conditions, making them suitable for both indoor and outdoor installations.

Overall, the Paradyne DMD15L and DMD15 are high-performance modems that combine versatile technologies, reliability, and user-friendly features. They are excellent choices for organizations looking to enhance their communication capabilities and ensure robust data transmission across diverse networks. With their advanced functionalities and adaptability, these modems stand out as key components in modern network infrastructure.