Comtech EF Data RCF6001 - Manual (Page 24)

Maintenance RCF6001 Satellite Terminal
Page 4-4 TM082 - Rev. 1.0
modified and pressing the terminal key of the option number. For example, to change the transmit data
rate, enter ‘33’ at the terminal. The modem will respond by presenting the options available and
requesting input. Two types of input may be requested. If the input is multiple choice, the desired choice
is selected by pressing the ‘Space’ key. When the desired option is displayed, press the ‘Enter’ key to
select that option. The other possible input type requires a numerical input (such as entering a frequency
or data rate). This type of input is followed by pressing the ‘Enter’ or carriage return key. An input can be
. Invalid input keys cause an error message to be displayed
on the terminal.
The Terminal Control Mode supports serial baud rates of 2400, 9600 and 19200. The connection must
be set for 8 data bits, 1 stop bit and no parity (8,N,1). Three terminal emulations are supported: VT100,
WYSE 50, and ADDS. The emulation type can be changed either from the front panel or by pressing ‘$’
(dollar sign) on the terminal keyboard. The terminal menus are shown in Appendix C at the end of this
manual.
3.3 Modem Remote Port Control
The modem can be controlled by an external Monitor & Control (M&C) system through Remote Port
mode (also referred to as Computer Mode). Communication between the DMD2401 and the external
system control computer is via a binary protocol which is described in detail in Appendix B at the end of
this manual. The remote port provides RS485 capability and thus can be used with a multi-drop control
bus allowing a single external M&C computer to control several DMD2401 modems.
3.4 Parameter Setup
To set any parameter, the four arrow keys to the right of the LCD display are used to select the
parameter to be set, followed by pressing the ‘Enter’ key to indicate that a new entry is desired, then
setting the parameter via the numeric keypad and finalizing the data entry using the ‘Enter’ key. The
current input can be canceled by depressing the ‘Clear’ key at any time before pressing ‘Enter’. When
the entry involves selection of 1 of several choices, this is accomplished by either: pressing an option
number selection (0 to max. where max. may be 1 to 4) then pressing the ‘Enter’ key, or, using the up
and down arrow keys to scroll though the available options, pressing ‘Enter’ when the desired option is
displayed. When scrolling though the available options, the current setting is denoted by an arrow in the
left column position.
Following a valid input, the modem will place the new setting into the nonvolatile EEPROM making it
available immediately and also automatically the next time the unit is powered-up.
3.5 Modem Checkout
The following descriptions assume that the modem is installed in a suitable location with prime AC power
applied and supporting equipment available.