Comtech EF Data SDM-300L3 - Manual (Page 341)

SDM-300L3 Satellite Modem Revision 0
Specifications MN/SDM300L3.IOM
14–35
14.13.1 Asynchronous Baud Rates
The operator can select the following baud rates for both the TX and RX asynchronous
overhead.
110 2400
150 4800
300 9600
600 19200
1200 38400
14.13.2 Asynchronous Overhead Data Format
The operator can select the following data formats for both the TX and RX asynchronous
overhead.
Word Length Stop Bits Parity
5, 6, 7, or 8 bits 1 or 2 bits Odd, Even, or None
14.13.3 Asynchronous Overhead Parameters
Table 14-10. ASYNC Overhead Parameters
Local Automatic Uplink Power
Control (AUPC) AUPC functions are available through the use of the optional Async
overhead channel or the optional Reed-Solomon cards. The operator can
select local AUPC to be enabled or disabled.
AUPC Power Levels The operator can select from 0 to -40 dBm in 0.5 dBm steps, for the
nominal, minimum, and maximum transmit power levels. Changes in the
power level shall not interrupt the carrier.
AUPC Target Noise Level The operator can select the Eb/N0 target setpoint from 3.2 to 16.0 dB in
0.1 dBm steps.
AUPC Tracking Rate The operator can select the maximum tracking rate from 0.5 to 6.0
dBm/minute in 0.5 dBm/minute steps.
AUPC Carrier Loss Action The operator can select transmit power level to Maximum, Nominal, or
Hold for both local and remote carrier loss.
Note: Local carrier loss has priority over remote carrier loss.
Remote AUPC The operator can select remote AUPC to be enabled or disabled. The
operator can also select a remote transmit 2047 test pattern and a remote
baseband loopback to be enabled or disabled. The operator can monitor
the remote AUPC 2047 bit error rate.
14.13.4 AUPC with Reed-Solomon Option
The AUPC function is supported, without the overhead card when the Reed-Solomon card
is installed. The ASYNC overhead channel is not supported by the AUPC on the Reed-
Solomon card.
Note: The ASYNC requires the overhead card.