Comtech EF Data SDM-2020 - Manual (Page 36)

SDM-2020 Satellite Demodulator Revision 4
Installation MN/SDM2020D.IOM
2–2
2.2 Installation
A complete demodulator consists of the SDM-2020 main unit and an optional plug-in
data interface. The demodulator is shipped with the data interface installed in the main
unit. Changing a data interface is easily accomplished in the field and does not require
disassembly of the main unit. Refer to Section 2.2.1 for information on removing and
installing data interface modules.
Install the demodulator (Figure 2-1) as follows:
1. Optional: Install the mounting bracket in equipment rack (Figure 2-1). Install and
tighten the bracket bolts.
2. Loosen the screw with flat washer located on the left side of modem chassis.
Mount the modem chassis into the equipment rack and slide the screw with flat
washer through the slot of the mounting bracket. Tighten the screw sufficiently to
allow the modem chassis to slide in the bracket.
3. Connect the cables to the proper locations on the rear panel. Refer to Section 2.3
for connector pinouts, placement, and function.
4. The demodulator will turn on automatically when the primary power connection
is made (plugged in).
Note: If there is any problem with the installation, contact Comtech EF Data’s
Customer Support Department.