Modem Setup For Terminal Mode; Terminal Port User Interface; Connecting The Terminal - Radyne DMD20 Installation And Operation Manual

DMD20/DMD20 LBST Universal Satellite Modem

4.9.2 Modem Setup for Terminal Mode

Terminal Mode Communications and Protocol is set from the Front Panel Control by setting the
"Control Mode" Parameter to "Terminal", and then setting the "Modem Port", "Term Baud" and
"Emulation" Parameters as desired. Then a terminal is connected to Connector J20 on the Back
Panel. All operating software for the Terminal Mode is contained within the DMD20 Modem
Internal Control Software.
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.
The Terminal Mode uses eight "Screens," each of which have the basic contents of the three
modem monitor and control areas as set in the Front Panel matrix columns. This screen is used
for setting the parameters of the Modulator, Demodulator, Event, Alarm, Latched Alarm, Drop
Controls, Insert Controls, and Interface Areas.

4.10 Terminal Port User Interface

The Remote Port (J20) of the DMD20 allows for complete control and monitoring of all DMD20
parameters and functions via an RS-232 Serial Interface, or RS-485 for RLLP Protocol. 'Terminal
Mode' can be entered from the front panel by selecting "System" and then "Control Mode"
followed by "Terminal". The baud rate and evaluation type can be changed at the front panel by
using the System>Baud Rate Menu.
The Terminal Control Mode is menu-driven and the allowable values for each item number will be
shown. To change an item, type in its number followed by <ENTER>. If the parameter to be
changed requires a numeric value, enter the number followed by <ENTER> If the parameter is
non-numeric, press <SPACE> to cycle through the list of available entries.
Items that do not have ID numbers are Status only and cannot be
changed.

4.11 Connecting the Terminal

1. Connect the computer to the DMD20 Remote Connector (J20) on the rear of the
unit using the RS-232 Cable.
2. Enable the terminal by selecting Terminal Mode (located under the System -
Control Mode Menu) from the front panel.
3. Verify that your emulation software is set to the following:
8 data bits
no parity
1 stop bit
TM103 – Rev. 2.5
User Interfaces
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