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SLM-3650 Satellite Modem
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A.4.5
Flex Mux
Flex Mux (Figure A-30) PCB is offered as a factory or field installable interface.
Simultaneous operation of a main data channel and three overhead channels are
supported. The main data channel is a G.703 type electrical interface at E1 (2048 kbps) or
T1 (1544 kbps) terrestrial data rate and supports both pass through and D&I modes of
operation. AUPC, ASYNC data and voice channels are supported in the three overhead
channels.
Flex Mux is designed to plug into the base board of the modem at two internal interfaces,
and provide a single 50-pin "D" sub-connector at the rear of the modem to replace the
non-overhead 25-pin connector. The particular overhead configuration of the PCB is
determined by software control via the front panel.
Connection to the main PCB of the modem is accomplished through a 96-pin DIN
connector and a 30-pin HEADER. The 96-pin connector provides most of the required
signals and power.
Refer to the following tables for system specification:
•
Table A-26 System Specifications
•
Table A-27 Multiplexer Specifications
•
Table A-28 Demultiplexer Specifications
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A–89
Revision 3
MN/SLM3650.IOM
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