User InterfacesDMD15/DMD15L IBS/IDR Satellite Modem

4.3.3 Demodulator Menu Options and Parameters

Mode:

{IDR, IBS, Closed Net, Drop & Insert}

 

Used with IDR, or IBS Interface Only.

 

The Mode Command sets a number of parameters

 

within the modem to meet a set specification. The

 

purpose is to eliminate keystrokes and potential

 

compatibility problems. Additionally, data rates not

 

covered by the given mode of operation will not be

 

allowed. If the mode of operation is selected after the

 

data rate has been entered, then the data rate must be

 

compatible with the desired mode of operation or the

 

mode will not be allowed. The following parameters are

 

set for the given mode of operation and cannot be

 

changed while the unit is in the given mode of operation:

IDR Mode:

 

(IESS-308)

 

For Data rates 1.544, 2.048, 6.312, 8.448 Mbps

Framing Type:

96 Kbps (IDR)

Descrambler type:

V.35

Spectrum Mask:

Intelsat

For Data Rates < 1.544 Mbps

Framing Type:

1/15 (IBS)

Descrambler Type:

IESS-309

Spectrum Mask:

Intelsat

 

IBS Mode:

 

 

(IESS-309)

 

 

For Data Rates < 2.048 Mbps

 

Framing Type:

1/15 (IBS)

 

Descrambler Type:

IESS-309

 

Spectrum Mask:

Intelsat

 

Closed Net:

 

 

All possible combinations allowed

 

Drop & Insert:

 

 

Data Rates:

n x 64, n = 1, 2, 3, 4, 5, 6, 8, 10,

 

 

12, 15, 16, 20, 24, 30

 

Framing Type:

1/15 (IBS)

 

Descrambler Type:

IESS-309

 

Spectrum Mask:

Intelsat

Strap Code:

{Refer to Strap Code Guide, Section 4.3, Table 4-4}

 

The Strap Code is a quick set key that sets many

modem parameters. Consult the strap code guide for available strap codes. Parameters set by strap code:

Data Rate

Code Rate

Mode

Frame Type

Scrambler Type

Spectrum Mask

4-8

TM051 – Rev. 5.8

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Paradyne DMD15L Demodulator Menu Options and Parameters, Strap Code Refer to Strap Code Guide, .3, Table
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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.
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