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Number of Channels
User Channel #1
Drop and Insert
User Channel #2
ADPCM Audio Channel
User Channel #3
AUPC Channel
User Channel #3
Auxiliary Data Channel
User Channel #4
AUPC Channel
User Channel #4
Auxiliary Data Channel #2
Aggregate Data Rate
Multiplex Overhead
A–80
Figure A-25. Flex Mux (AS/6450)
Table A-23. System Specification
System Specification
1 to 4, Each Channel is independently configurable.
G.703 E1 with Nx64 kbit/s channels.
G.703T 1 with Nx64 kbit/s channels.
32 kbit/s audio channel 600Ω, balanced 4-wire.
Automatic Uplink Power Control (AUPC) is included to provide remote output power
adjustment capability.
Note: AUPC can not be selected for Channels #3 and #4 simultaneously.
EIA-422 SYNC/ASYNC with CTS flow control, 0.6 to 40000 kbit/s (in 100 bit steps).
EIA-232 SYNC/ASYNC with CTS flow control, 0.6 to 64 kbit/s (in 100 bit steps).
AUPC is included to provide remote output power adjustment capability.
Note: AUPC can not be selected for Channels #3 and #4 simultaneously.
EIA-485 ASYNC, 0.6 to 64 kbit/s (in 100 bit steps).
EIA-232 SYNC/ASYNC with CTS flow control, 0.6 to 64 kbit/s (in 100 bit steps).
4.8 to 4001.3 kbit/s, the aggregate data rate is the sum of all tributary data rates plus the
multiplex overhead.
1.3 kbit/s.
SDM-300A Satellite Modem
Rev. 4
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