Comtech EF Data SDM-2020 - Manual (Page 21)

SDM-2020 Satellite Demodulator Revision 4
Preface MN/SDM2020D.IOM
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About this Manual
This manual provides installation and operation information for the Comtech EF Data
SDM-2020 Satellite Demodulator. This is a technical document intended for earth
station engineers, technicians, and operators responsible for the operation and
maintenance of the SDM-2020.
Related Documents
The following documents are referenced in this manual:
• DVB TM1449, Interfaces for CATV/SMATV Headends and Similar Professional
Equipment
• DiSEqC Bus Functional Specification – Version 4.2
• ETS 300 421, Dec. 1994, “Digital Broadcasting Systems For Television, Sound
And Data Services; Framing Structure, Channels Coding And Modulation For
11/12 GHz Services.”
• EN 301 210, 19 March 1998, Digital Video Broadcasting (DVB) Framing
structure, channel coding and modulation for digital satellite News Gathering
(DSNG) and other contribution applications by satellite
Conventions and References
Cautions and Warnings
CAUTION
CAUTION indicates a hazardous situation that, if not avoided, may result in
minor or moderate injury. CAUTION may also be used to indicate other
unsafe practices or risks of property damage.
WARNING
WARNING indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury.
IMPORTANT
IMPORTANT indicates a statement that is associated with the task
being performed.