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DMD50 Universal Satellite Modem
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:
4.
Press <ENTER> to enter the settings into the modem.
To View the current Timeslot Assignment:
1. If there is a question of the channels not being entered properly, the Mapping Menu may
be used to see how the channels/timeslots are configured in the modem.
2. Use <ENTER> and the Arrow Keys to make the mapping menu read (for the Tx Side):
3. Press <ENTER>. The modem has now copied the current Tx Settings to the Tx
Channel/Timeslot Display.
4. For the Rx Side:
5. Press <ENTER>. The modem has now copied the current Rx Settings to the Rx
Channel/Timeslot display ).
It is not mandatory to assign timeslots in sequential order, although the lowest timeslot
must be entered in the lowest channel. For example: timeslots may be assigned 1 - 2, 2 -
5, etc. but not 1 - 5, 2 - 2.
IMPORTANT
H.2
Configuring the Modem for Drop and Insert
Several dependencies exist when configuring the modem for Drop and Insert (D&I). The
following paragraphs explain these dependencies and provide the user with the information
required to ensure smooth transition into D&I and to minimize the potential impact of these
dependencies.
H.2.1 Data Rate
Data Rate affects the Drop and Insert function in the following ways:
•
It determines the number of Satellite Channels that will be displayed in the Edit Maps.
•
It contributes to the Operational Mode selection process. Trying to change the Operational
Mode to D&I when a data rate is not set to a valid D&I rate will result in the error message
'INVALID DATA RATE,' and the mode change will not be allowed.
MN-DMD50 Revision 4
Map
Copy
RX EDIT > RX ACTIVE
Map
Copy
TX ACTIVE > TX EDIT
Map
Copy
RX ACTIVE > RX EDIT
Drop and Insert (D&I)
H–7
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