Async/aupc operation, 4 async/aupc operation – Comtech EF Data SDM-300A User Manual

Page 213

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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


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