Terminal Mode Control - Comtech EF Data DMD50 Installation And Operation Manual

DMD50 Universal Satellite Modem
Carrier TYPE
4.5

Terminal Mode Control

The Terminal Mode Control allows the use of an external terminal or computer to monitor and
control the modem from a full screen interactive presentation operated by the modem itself. No
external software is required other than Terminal Emulation Software (e.g. "Procomm" for a
computer when used as a terminal. The Control Port is normally used as an RS–232 Connection
to the terminal device. The RS-232 operating parameters can be set using the modem Front Panel
and stored in Non-Volatile Memory for future use (refer to Remote Protocol Manual for setup
and terminal screens).
MN-DMD50– Revision 3
TERR TX/RX: Enables both. Baseband loopback is performed
at interface between the Baseband Processor Card and the
Modem Card. This ensures Framer/Deframer integrity.
BASEBAND TX/RX: Enables both Baseband Tx and Baseband
Rx.
NONE: No loopback performed.
TERR RX: (Distant Loop) Sends received satellite data to the
Modulator for transmission to the distant end.
BASEBAND RX: Sends Rx data from the Modem Card to the
Tx data input to the Modem Card.
TERR TX: Sends Tx Terrestrial Data to Rx data out.
BASEBAND TX: Sends Tx data to the receive input to the BB
Card.
{normal, CW, DUAL, OFFSET, POS FIR, NEG FIR}
Allows the user to set the type of carrier.
NORMAL: Causes the Modulator to output normal modulation.
CW: Causes the Modulator to output a pure carrier.
DUAL: Causes a double sideband output.
OFFSET: Causes a single sideband output.
POS FIR: For manufacturer's use only.
NEG FIR: For manufacturer's use only.
User Interfaces
4–42