User InterfacesDMD15/DMD15L IBS/IDR Satellite Modem

Tx D&I (menu):

 

Drop Mode:

{Enable, Disable}

 

Allows the user to enable or disable the following:

 

T1-D4, T1-ESF, PCM-30, PCM-30C, PCM-31,

 

PCM-31C, SLC-96, T1-D4-S, T1-ESF-S.

Map Copy:

{Rx Edit, Tx Edit, Rx Acti, Tx Acti, ROM 1…ROM 8,

 

User 1…User 8}

 

Allows user to copy Drop and Insert maps. If the user

 

attempts an invalid copy, the error prompt “BAD

 

DESTINATION” will be displayed and the copy will not be

 

allowed. The Tx Active map is the drop map currently

 

being used by the modem. For a more detailed

 

description of this function, see Section 4.6.4.

SATCh TS:

Allows the user to edit the Tx Edit Map to specify the

 

terrestrial slots that will be dropped into which satellite

 

channels. The Satellite Channels are fixed and the

 

number of channels are determined by the data rate.

 

The Terrestrial Timeslots available are determined by the

 

Drop Mode. When the user has finished editing the Tx

 

Edit map, it must be copied to the Tx Active map before

 

it can be used by the modem.

Time Mark:

{Enable, Disable}

 

Allows the user to enable or disable the “Time Mark

 

Transfer” (TMT) Transmit Request External Input to

 

initialize the state machine that detects the proper states

 

of I and Q and inserts the TMT Pattern into the transmit

 

symbol stream. This feature is only available in BPSK,

 

QPSK, and OQPSK Modulations and requires specific

 

hardware and configuration at the factory.

TMT Length:

{4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}

 

Allows the user to set the length of the pattern marker.

 

This feature is only available in BPSK, QPSK, and

 

OQPSK Modulations and requires specific hardware and

 

configuration at the factory.

Rx Setup (menu):

 

Rx Ckt ID:

Provides entry of Rx Circuit Identifier. Circuits can be

 

given up to an 11 Character alphanumeric Identity such

 

as DLINK1

Rx Type:

{G.703 (Balanced/Unbalanced), V.35, RS-232, RS-

 

422}

 

Allows the user to select the Receive Type.

Buff Size:

{0-32 msecs}

 

Allows the user to set the Doppler Buffer Size in msec.

Buff Clk:

{SCTE (External), SCT (Internal), Rx Sat, EXTCLK}

4-12

TM051 – Rev. 5.8

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Paradyne DMD15L operation manual Tx D&I menu Drop Mode Enable, Disable, SATCh TS, Time Mark Enable, Disable
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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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