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DMD50 Universal Satellite Modem
BUFFER CLK SRC
MAP COPY
SAT CH TERRCH
BUFFER CLOCK POL
MN-DMD50– Revision 3
Allows the user to set the Doppler Buffer Size in msec.
The user must assign priorities to the clock sources. 1 being the
highest priority and 5 being the last resort. The menu has three
fields; the first field is the name of the clock source, the second
field is the priority entry area, and the last field is the depth of
the list. In the priority field, the up/down arrow keys will scroll
through the list displaying the names and the current priority.
When the desired clock name is displayed, the number keys may
be used to assign a priority value. Pressing <Enter> will re-sort
the list. Do this until the clock sources are prioritized in the order
desired. Use the left/right arrow keys to move the cursor to the
depth field. This field assigns the number of entries to use. The
number keypad or the up/down arrows can be used to change the
value.
Clock Source
RX SAT
SCTE
SCT
EXT BNG
EXT IDI
{SRC Map
Dest Map}
Allows the user to copy drop and insert maps. Tx Act map is the
drop map currently being used by the modem. Source and
destination may be any of the following:
TX ACT, RX ACT, TX EDIT, RX EDIT,
USER 1 - USER 8, ROM 1 -ROM 8
{1-31
The up/down arrow keys allow you to traverse the sat terr
pairings. The slot numbers may be edited using the keypad.
Allows the user to edit the Tx Edit map and specify the terrestrial
slots that will be dropped into the assigned satellite channels.
The satellite channels are fixed and the number of channels are
determined by the data rate.
The terrestrial time slots available are determined by the drop
mode. When the user has finished editing the Tx Edit map, it
must be copied to the Tx Act map before it will be used by the
modem.
{NORMAL, INVERTED}
Priority
1
2
3
4
1-31}
User Interfaces
SRC DEPTH
of
3
Only these will
of
3
be used
of
3
of
3
Will not be
used since 4>3
5
of
3
and 5>3
4–19
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Troubleshooting
