Comtech EF Data Radyne DMD1050, Installation And Operation Manual

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DMD1050 Satellite Modem Board Carrier Control
Modulator output is turned off before reprogramming modulator functions that may alter the output
spectrum through the front panel, but the output is automatically turned on after the change. When using
the terminal, the modulator is turned off while re-programming modulator functions that may alter the
output spectrum, and but the output is automatically turned on after the change.
B.5 Carrier VSat
Modulator output is turned off before reprogramming modulator functions that may alter the
output spectrum through the front panel, and the user is required to enter “Yes” to re-enable
output after the change. When using the terminal, the modulator is turned off while
re-programming modulator functions that may alter the output spectrum, and the user is required
to manually turn on the output after the reprogramming (same as “Carrier On”). Additionally
“VSat” mode disables the modulators output is the modems demodulator does not have signal
lock. When signal lock returns to the demodulator, the modems modulator turns the carrier back
on.
B.6 Carrier RTS
Modulator output is turned off before reprogramming modulator functions that may alter the
output spectrum through the front panel, and the user is required to enter “Yes” to re-enable
output after the change. When using the terminal, the modulator is turned off while re­
programming modulator functions that may alter the output spectrum, and the user is required to
manually turn on the output after the reprogramming (same as “Carrier On”). Additionally
“RTS” (Request To Send) mode enables the modulator’s output based on the RTS lead of the data
interface. When RTS is enabled on the data interface, the modulator turns on the carrier, when
the RTS is disabled the modulator turns off the carrier.
MN-DMD1050 B–2
Revision 9