Async/aupc operation, 4 async/aupc operation – Comtech EF Data SDM-300A User Manual
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SDM-300A Satellite Modem
Revision 6
Modem Types
MN/SDM300A.IOM
6-5
6.1.4
ASYNC/AUPC Operation
To operate in the Asynchronous/AUPC configuration, the following cards must be
installed in the modem:
• Overhead G.703/IDR/IBS/ASYNC/AUPC/D&I card (PL/5305-1)
• 50-pin D relay adapter card (PL/5509)
The ASYNC/AUPC option is a FAST feature that must be enabled using the front panel
and the Utility: Modem Type menu. Table 6-6 lists that are accessible once the
ASYNC/AUPC modem type is enabled.
Table 6-6. Asynchronous Parameter Settings
Parameter
Front Panel Setting
Reference Menu
Modem Type
ASYNC
Utility : Modem Type
TX Data/Code Rate
TX-V, BPSK 1/2 or QPSK
1/2, 3/4, or 7/8
Configuration: Modulator
TX-IF Output
ON
Configuration: Modulator
RX Data/Code Rate
RX-V, BPSK 1/2 or QPSK
1/2, 3/4, or 7/8
Configuration: Demodulator
Encoder Type
Viterbi/Sequential
Utility: Modulator
Decoder Type
Viterbi/Sequential
Utility: Demodulator
ASYNC TX Baud
110 to 38400 bit/s
Configuration: Interface
ASYNC RX Baud
110 to 38400 bit/s
Configuration: Interface
ASYNC TX Length
5 to 8 bits
Configuration: Interface
ASYNC RX Length
5 to 8 bits
Configuration: Interface
ASYNC TX Stop
1 or 2 bits
Configuration: Interface
ASYNC TX Parity
Even or Odd
Configuration: Interface
ASYNC RX Parity
Even or Odd
Configuration: Interface
Local AUPC
ON or OFF
Configuration: Local AUPC
Nominal Power
-5 to -30 dBm
Configuration: Local AUPC
Minimum Power
-5 to -30 dBm
Configuration: Local AUPC
Maximum Power
-5 to -30 dBm
Configuration: Local AUPC
Tracking Rate
0.5 to 6.0 dBm/min.
Configuration: Local AUPC
Remote AUPC
ON or OFF
Function Select: Remote AUPC
AUPC Enable
ON or OFF
Function Select: Remote AUPC
Baseband Loopback
ON or OFF
Function Select: Remote AUPC