DM240XR High-Speed Digital Modulator
User Interfaces
MN-DM240XR– Revision 12
4–41
Figure 4-4b. Object Identifiers in the Management Information Base (Figure 2 of 2)
4.8
Terminal Port User Interface
The Terminal Port of the DM240XR supports an asynchronous control protocol. It is configured
to support RS-232 signal levels. This port is intended for use in computer-based remote M&C.
All functions of the modem may be monitored and controlled from this port via a common
terminal connected to the Terminal Port.
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 VT-100 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. Terminal mode communications
and protocol is set from the front panel control by setting the “Term Baud” and “Emulation”
parameters as desired. Then a terminal is connected to Connector J1 on the Back Panel.
A “break” signal on the communications line, pressing “ESC” on the terminal or Power On of the
modem will initiate full screen terminal mode printing and redraw the full screen. The terminal
mode displays the present status of all user parameters controlled and read by the processor, and
offers a menu allowing change to any controlled parameter.
Representations of the terminal screens are shown in Figures 4-5 through 4-12. These screens
may differ from the exact screens displayed due to changes in software and the presence (or
absence) of options in the modem hardware. For instance, the presence of RF Switch control
hardware will result in added options available on the screens, or additional screens to be
available.
Summary of Contents for Radyne DM240XR
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