Comtech EF Data DD240XR Rev Е - Manual (Page 33)

DD240XR High-Speed Digital Demodulator User Interfaces
MN-DD240XR – Rev. E 4-13
This screen displays the ratio of mpeg packets with CRC
errors to mpeg packets with no errors. No CRC errors =
0, every packet with a CRC error = 1.
FREQ OFFSET (Hz):
{-2.5 MHz, +2.5 MHz}
This screen displays the actual carrier frequency offset
from the programmed frequency.
SYMB RATE OFFSET (Hz):
{-1000 Hz, 1000 Hz}
This screen displays the symbol rate recovered as an
offset from the programmed symbol rate.
SPECTRUM:
{NORMAL, INVERTED}
This is the spectrum detection as detected by the internal
carrier subsystem.
RX BUFFER LEVEL:
This screen displays the buffer level in percent full.
Displayed in buffer capable units only
RX BUFFER RESET:
Allows the user to re-center, and therefore, reset the
buffer. Pressing the <ENTER> button will force a re-
centering and will result in a momentary loss of data or
frame slip. Not all terrestrial interfaces include a Doppler
buffer.
+5V SUPPLY:
Display the currently measured +5 VDC power supply.
+12V SUPPLY:
Display the currently measured +12 VDC power supply.
-12V SUPPLY:
Display the currently measured -12 VDC power supply.
Only on units with a HSSI or ECL BAL/UNBAL Terrestrial
Interface installed.
+24V SUPPLY:
Display the currently measured +24 VDC power supply.
MONITOR - The following new items are available under the Monitor menu
LINK STATUS: {1 GIG FULL, 100 MEG FULL, NO LINK}
This menu displays the current terrestrial link status and
rate at which the Ethernet Data Interface has established
a physical connection.
1 GIG FULL
- One Gigabit Full Duplex (1000BaseT)
100 MEG FULL 100 Megabits Full Duplex (100BaseT)
NO LINK - No connection.
TOTAL PACKETS: {0123456789}
This menu displays the total number of data packets that
have been output by the Ethernet Data Interface. This is
either the number of UDP packets in UDP mode, or the
number of RTP packets in COP3 RTP and COP3 RTP
FEC mode.
FEC PACKETS: {0123456789}