B.1.3.2 modulation configuration, B.1.3.3 demodulation, B.1.3.4 utility/interface – Comtech EF Data SDM-100A User Manual
Page 192

Options
SDM-100A Satellite Modem
B–10
Rev.
0
B.1.3.2 Modulation Configuration
TX Rate and Type
This option allows the user to chose from a 9.6 to 224 kHz mode of
operation with the ASYNC overhead enabled. BPSK 1/2, QPSK 1/2,
3/4, and 7/8 are also supported. With the ASYNC set to OFF, this
option works in the standard SDM-100A mode.
B.1.3.3 Demodulation
RX Rate and Type
This option allows the user to chose from a 9.6 to 224 kHz mode of
operation with the ASYNC overhead enabled. BPSK 1/2, QPSK 1/2,
3/4, and 7/8 are also supported. With the ASYNC set to OFF, this
option works in the standard SDM-100A mode.
B.1.3.4 Utility/Interface
Remote AUPC
This option turns the AUPC mode on the remote modem on or off.
Remote Baseband
Loopback
This option sets the remote modem into the baseband loopback
mode.
Terrestrial
This option selects the interface type for the terrestrial data.
ASYNC
This option selects the interface type for the ASYNC data.
2-Wire/4-Wire
This option programs the ASYNC interface for either a 2- or 4-wire
interface.
SD Invert/Normal
This option inverts the polarity of the SD signal.
RD Invert/Normal
This option inverts the polarity of the RD signal.
RR Invert/Normal
This option inverts the polarity of the RR signal.
DM Invert/Normal
This option inverts the polarity of the DM signal.
RS Invert/Normal
This option inverts the polarity of the RS signal.
CS Invert/Normal
This option inverts the polarity of the CS signal.
MC Invert/Normal
This option inverts the polarity of the MC signal.
RT Invert/Normal
This option inverts the polarity of the RT signal.
ST Invert/Normal
This option inverts the polarity of the ST signal.