Comtech EF Data SDM-2020, Installation And Operation Manual

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SDM-2020 Satellite Demodulator Introduction
Rev. 3 1–3
A status and control port (available through a 9-pin D connector at the rear of the
chassis) provides either serial EIA-232 or EIA-485 (2- or 4-wires) for remote control
applications. A second rear panel 9-pin D connector provides fault/alarm status.
The demodulator is designed to meet stringent safety and RF emissions standards,
including CE Mark certification. See Section 2.4 for information regarding proper
operation for CE emissions.
The demodulator utilizes Fully Accessible System Topology (FAST), EFData’s feature
for immediate implementation of different options through the user interface keypad,
enabling on-location upgrade of the operating feature set—in the rack—without
removing a unit from the setup. This feature employs a unique access code to enable
configuration of the available hardware. The access code can be purchased at any time
from EFData Customer Support. Once obtained, the access code is entered into the unit
through the front panel keypad or the rear remote port. When service requirements
change, the demodulator can be upgraded to meet the new requirements within minutes
after confirmation by EFData Customer Support. Refer to Appendix C for additional
information.
Note: There are specific data rate ranges for the various interfaces. See Appendix A.