Table of Contents
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DMD2401 LB/ST L-Band Satellite Modem and ODU Driver
Table of Contents
Table of Contents
1.0 Description______________________________________________________1-1
1.1 DMD2401 Available Options ________________________________________1-2
1.1.1 Reed-Solomon Codec ___________________________________________1-2
1.1.2 Sequential Decoding ____________________________________________1-2
1.1.3 Asynchronous Overhead Channel __________________________________1-2
1.1.4 Customized Options _____________________________________________1-3
1.1.5 8PSK Modulation _______________________________________________1-3
1.1.6 Analog AGC Voltage ____________________________________________1-3
2.0 Installation Requirements __________________________________________2-1
2.1 Unpacking ______________________________________________________2-1
2.2 Removal and Assembly ____________________________________________2-2
2.3 Mounting Considerations ___________________________________________2-2
2.4 Modem Checkout_________________________________________________2-2
2.4.1 Initial Power-Up ________________________________________________2-2
3.0 Theory of Operation_______________________________________________3-1
3.1 DMD2401 LB/ST Operation _________________________________________3-1
3.2 Applications _____________________________________________________3-1
3.2.1 SCPC Point-to-Point Links ________________________________________3-1
3.2.2 SCPC Point to Multi-Point Links in a Broadcast Application ______________3-2
3.2.3 DAMA (Demand Assigned Multiple Access) ___________________________3-2
3.3 DMD2401 LB/ST Initial Configuration Check ____________________________3-3
3.5 DMD2401 LB/ST Asynchronous Overhead Operation_____________________3-4
3.5.1 Asynchronous Framing/Multiplexer Capability _________________________3-4
3.6 Standard IBS Mode _______________________________________________3-6
3.7 Asynchronous Multiplexer Mode _____________________________________3-6
TM075 - Rev. 1.3
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