DMD15/DMD15L IBS/IDR Satellite ModemUser Interfaces

The full handshake/acknowledgment involves a reversal of source and destination ID codes in the next message frame, followed by a response code in the <OPCODE> field of the message packet from the equipment under control.

If a command packet is sent and not received at its intended destination, a timeout condition can occur because a response message is not received by the packet originator. On receiving devices slaved to an M & C computer, the timeout delay parameters may be programmed into the equipment in accordance with site requirements by Radyne Corp. prior to shipment, or altered by qualified personnel. The FSN handshake routines must account for timeout delays and be able to introduce them as well.

4.9.1.4 Global Response Operational Codes

In acknowledgment (response) packets, the operational code <OPCODE> field of the message packet is set to 0 by the receiving devices when the message intended for the device is evaluated as valid. The device that receives the valid message then exchanges the <SOURCE ID> with the <DESTINATION ID>, sets the <OPCODE> to zero in order to indicate that a good message was received, and returns the packet to the originator. This "GOOD MESSAGE" Opcode is one of nine global responses. Global response opcodes are common responses, issued to the M&C computer or to another device, that can originate from and are interpreted by all Radyne equipment in the same manner. These are summarized as follows (all opcode values are expressed in decimal form):

Table 4-8. Response OPCODES

 

 

 

 

Response OPCODE Description

 

OPCODE

 

 

 

Good Message

 

000d = 0000h

 

 

 

Bad Parameter

 

255d = 00FFh

 

 

 

Bad Opcode

 

254d = 00FEh

 

 

 

Bad Checksum

 

253d = 00FDh

 

 

 

Command Not Allowed in LOCAL Mode

 

252d = 00FCh

 

 

 

Command Not Allowed in AUTO Mode

 

251d = 00FBh

 

 

 

Bad Destination

 

250d = 00FAh

 

 

 

Unable to Process Command

 

249d = 00F9h

 

 

 

Packet Too Long

 

248d = 00F8h

 

 

 

The following response error codes are specific to the DMD15:

DMD15 Response Error Code Descriptions

OPCODE

 

 

MPARM_MODEMNUMBER_ERROR

0x0400

 

 

MPARM_FREQUENCY_ERROR

0x0401

 

 

MPARM_STRAP_ERROR

0x0402

 

 

MPARM_FILTERMASK_ERROR

0x0403

 

 

MPARM_DATARATE_ERROR

0x0404

 

 

MPARM_EXTEXCCLOCK_ERROR

0x0405

 

 

MPARM_EXTREFERENCE_ERROR

0x0406

 

 

TM051 - Rev. 5.8

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Paradyne DMD15L operation manual Global Response Operational Codes, Response Opcodes Response Opcode Description
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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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