Comtech EF Data SDM-2020, Installation And Operation Manual

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Rev.3 A–1
A
Appendix A.
DATA INTERFACES
This appendix describes the plug-in data interface modules used with the SDM-2020
Demodulator.
A.1 Description
Note:
The SDM-2020 Demodulator incorporating PCB, AS/7733 will have available any
of the following interfaces.
The data interface is a plug-in module that provides a specific terrestrial connection to the
demodulator unit. Where practical, both the TX (modulator) and RX (demodulator) paths
are incorporated into the data interface. The location for the information on each interface
is as follow:
Paragraph No. Title
A.1 Description
A.2 RS-422 Parallel/Serial Interface
A.3 LVDS (Low Voltage Differential Signal Interface)
Note: Same as the DVB-SPI.
A.4 ASI/RS422 (Asynchronous Serial Interface/Serial Data Interface)
A.5 ECL/HSSI Serial Data Interface
A.6 G.703 Data Interface
A.7 SMPTE 310M Data Interface
A.8 ASI/LVDS Interface
Note: Different interfaces are described in this appendix. As additional interfaces are
developed, the appendix will be revised to include the new interfaces. Contact Comtech
EF Data Customer Support for the latest information.