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L.1
Overview
Subsystem Multiplex – referred to throughout this manual as Sub-Mux – is a secondary
framing structure that combines IP traffic with any currently available combination of framing
and interface type (excluding IP itself). The composite data rate to the modulator and from the
demodulator is referenced to the primary, non-IP interface rate by a specific ratio selected by
the user.
L.2
Available Ratios
The IP portion of the modem traffic can be either smaller or larger than the primary interface by
the following ratios:
Ratio
1/59
1/39
1/19
1/9 or 9
1/8 or 8
1/7 or 7
1/6 or 6
1/5 or 5
1/4 or 4
2/7 or 7/2
1/3 or 3
2/5 or 5/2
3/7 or 7/3
1/2 or 2
Appendix L
Appendix L.
Table L-1. Subsystem Multiplex Available Ratios
IP traffic is one-fifty-ninth the primary
IP traffic is one-thirty-ninth the primary
IP traffic is one-nineteenth the primary
IP traffic is one-ninth the primary, or 9 times the primary
IP traffic is one-eighth the primary, or 8 times the primary
IP traffic is one-seventh the primary, or 7 times the primary
IP traffic is one-sixth the primary, or 6 times the primary
IP traffic is one-fifth the primary, or 5 times the primary
IP traffic is one-fourth the primary, or 4 times the primary
IP traffic is two-sevenths the primary, or 3.5 times the primary
IP traffic is one-third the primary, or 3 times the primary
IP traffic is two-fifths the primary, or 2.5 times the primary
IP traffic is three-sevenths the primary, or 2.33 times the primary
IP traffic is one-half the primary, or 2 times the primary
CDM- Advanced Satellite Modem
IP Sub-Mux
IP Portion of Modem Traffic
L–1
Revision 0
MN-CDM-425
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