Comtech EF Data DMD-2050E - Manual (Page 251)

DMD2050E Universal Satellite Modem Efficient Drop and Insert
MN-DMD2050E Revision 2 E–9
Example :
For a modem w/ Drop and Insert enabled at a data rate of 256 (with timeslots assigned 1 - 1, 2 -
2, etc.). At a data rate of 256, the modem will allow 4 channels to assign timeslots. Under the Tx
Menu, assign the timeslots that are to be used to the 4 channels. CH1 is assigned to TS1
(Timeslot #1), CH2 to TS 2, CH3 to TS3 and CH4 to TS4, <ENTER> must be depressed after
assigning each individual TS. Once the timeslots are assigned to the channels, use the Left or
Right Arrow Key to scroll to the Mapping Menu. This menu will appear in the following way:
Map Copy
******* *******
This is the menu where the channel assignments are actually entered into the modem. To do
this, perform the following steps:
For the Transmit Side:
1. Push <ENTER> to get the flashing cursor.
2. Use the Up Arrow Key to make the left portion of the display read “TX EDIT”.
3. Use the Right or Left Arrow Keys to switch the flashing cursor to the right portion
of the display.
4. Use the Up or Down Arrow Key to until the right hand portion displays “TX
ACTIVE”.
5. The mapping display should now look like this:
Map Copy
TX EDIT > TX ACTIVE
6. Push <ENTER> to enter this command. This tells the modem to configure to the
settings that were assigned in the Channel/Timeslot display.
For the Receive Side:
1. With Rx Side Channels configured as follows: CH1 to TS1, CH2 to TS2, CH3 to
TS3, and CH4 to TS4.
2. After the timeslots are assigned properly, scroll to the Mapping Menu and use the
above procedure to enter the settings into the modem.
3. Set the display to read: