Comtech EF Data OM20 - Manual (Page 39)

MN-OM20– Revision 5 4–1
Chapter 4. OM20 Theory of Operation
4.1 OM20 Hardware
The OM20 Outdoor Modem is based on the DMD20 Modem product platform that consists of a
two printed circuit card (minimum configuration) design with additional optioned printed circuit
cards available for additional features. The minimum configuration consists of an L-Band/IF
Assembly and a Digital Baseband Assembly. The optional printed circuit cards include a Turbo
Codec printed circuit card and one of several types of Interface printed circuit card (
Refer to
Appendix A ). A block diagram of the OM20 is shown in Figure 4.1.
Figure 4-1. OM20 Block Diagram