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Comtech EF Data DMD2401/DMD2401L User Manual

Page 18

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DMD2401/DMD2401L/DMD2401 IBS/IDR Satellite Modem

Introduction

TM065 - Rev. 3.3

1-3

1.1.4 Customized Options


The DMD2401 may be customized for specific customer requirements. Most
modifications/customization can be accomplished by means of firmware/software modifications.
The following are examples of the types of customization available to the user:

1.

Customized Data Rates.

2.

Customized Scrambler/Descramblers.

3.

Customized Overhead Framing Structures.

4.

Customized Modulation Formats.

5.

Customized Uses for Asynchronous Overhead Channel.

1.1.5 8PSK Modulation


The DMD2401 can be equipped with 8PSK Modulation capability as an add-on option. The 8PSK
Option can be added by installing one IC into an existing socket.

1.1.6 Analog AGC Voltage


The DMD2401 can be equipped at the factory to produce an analog voltage equivalent to its AGC
for use in antenna controllers.

1.1.7 Drop and Insert (D&I)


The DMD2401 can be equipped at the factory with D&I as an add-on enhancement. The D&I
Functions are completely independent and can be programmed for n x 64 blocks of either T1 or
E1 Data Streams.

1.1.8 Turbo Product Codec (TPC)


The DMD2401 can be equipped at the factory with TPC as an add-on option. The TPC Option is
a daughter card, which can be added by installing the card on modems with the required header.
TPC works with all installed modulations on the DMD2401 and functions throughout the Modem’s
symbol rate limits. TPC is used to enhance performance of the DMD2401 Modem



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