Comtech EF Data DD240XR Rev Е - Manual (Page 32)

User Interfaces DD240XR High-Speed Digital Demodulator
4-12 MN-DD240XR – Rev. E
PROG ETH FLASH: {PRESS CLEAR}
The PROG ETH FLASH allows the user to select the
desired Ethernet protocol. The protocol options
supported by the DD240XR are Pro MPEG COP 3 or
Bridge. If unit is configured for COP 3, the user can
activate Bridge option by pressing the <Down Arrow>.
Once Bridge is reflected on the front panel, press the
<Clear> button to activate the Bridge protocol. The front
panel will display a sequence process indicating that the
flash is being Erased, Programmed, and Verified. At the
end of sequence the final status will be displayed as
either Successful or Unsuccessful.
4.2.4 Monitor Menu Options and Parameters
EVENTS:
Event Buff:
Display/Clear logged events and faults.
Depressing <ENTER> on the Front Panel allows the user
to view logged events. Depressing <ENTER> again
allows normal menu traversal to continue.
ERASE EVENTS:
PRESS CLEAR
Clear all logged events and faults from the event buffer.
INPUT LVL (dBm):
{0 - 100}
This screen is used to display the current signal level
being detected by the demodulator.
EBNO (dB):
{XXXNN.NN}
NN.NN = the current Eb/No in dB. XXX may be one of
the following:
= The Eb/No is within the valid range.
> The Eb/No is above the valid range. The
displayed value is irrelevant and is accompanied
by an Alarm LED.
< The Eb/No is below the valid range. The
displayed value is irrelevant and is accompanied
by an Alarm LED.
“???” The Eb/No is invalid. The displayed value is
irrelevant and is accompanied by an Alarm LED.
BER AFTER OFEC:
DVBS only
{1.5 x 10
-15
, 3.7x 10
-2
(in QPSK)}
{7.7 x 10
-16
, 1.9x 10
-2
(in 8PSK)}
{7.7 x 10
-16
, 1.9x 10
-2
(in 16QAM)}
This screen displays the estimated Bit Error Rate (BER)
after decoding.
MPEG PER:
DVBS2 only