Comtech EF Data SDR-54A - Manual (Page 35)

Chapter 5. DEMUX Option
This chapter describes the two DEMUX daughter card options that are supported by the
SDR-54A.
5.1 DEMUX Overview
The SDR-54A DEMUX options, hereafter referred to as “the DEMUX 2/4” or the
“DEMUX 8-Channel”, are “daughter card” plug-in options for the demodulator.
The SDR-54A supports two DEMUX daughter card options:
• DEMUX 2/4
• DEMUX 8-Channel
The DEMUX 2/4 converts a single, aggregate-input data stream into two or four tributary
output data streams. Aggregate-input data consists of interleaved tributary data and
synchronization overhead added by a remote uplink multiplexer.
The DEMUX 2/4 is designed to operate in a 2- or 4-channel broadcast multiplexer
system, and to inter-operate with Comtech EF Data’s MUX24 multiplexer.
For more information on the MUX24, refer to Comtech EF Data Specification SP/5231
SOSOFT 2/4 Channel Demux.
The DEMUX 8-Channel converts the aggregate data stream into one to eight tributaries.
Aggregate input data consists of interleaved tributary data and synchronization overhead
added by a remote uplink multiplexer.
The DEMUX 8-Channel is designed to operate in a 1- to 8-channel broadcast multiplexer
system, and to inter-operate with Comtech EF Data’s 8-Channel multiplexer.
For more information on the DEMUX 8-Channel multiplexer, refer to the Comtech EF
Data Specification SP/6285 SDM-300A RX Reed-Solomon.
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