Test Menu Options And Parameters - Comtech EF Data DMD50 Installation And Operation Manual

DMD50 Universal Satellite Modem

4.4.8 Test Menu Options and Parameters

TX TEST PATTERN
RX TEST PATTERN
PATTERN SYNC
TST PAT ERR CNT
TST PATT BER
RESTART TST PAT ((ENTER))
LOOPBACK WITH ETHERNET DATA INTERFACE
Usage of the modems loopback capabilities in conjunction with the Ethernet data interface
can produce undesirable network loops. In order to run any type of data test with an
Ethernet interface you must utilize two modems connected back to back. Simply using one
modem and a loopback will not produce the desired results.
LOOPBACK
MN-DMD50– Revision 3
16QAM
TURBO 52 MBPS
OM73 SCRAMBLING
DVB
EDMAC
{NONE, 2047, 2^15-1, 2^23-1}
Allows the user to enable the tests listed above.
{NONE, 2047, 2^15-1, 2^23-1}
Allows the user to enable the tests listed above.
{YES, NO}
Yes indicates that the RX Test Pattern is in sync.
{NO SYNC, nnnn x 10
Displays the number of errors detected by the test pattern
checker.
{NO SYNC, nnnn x 10
Displays the measured BER for the test pattern.
Allows the user to restart the test by pressing <ENTER> on the
keypad.
{IF, TERR TX/RX, BASEBAND TX/RX, NONE,
RX, BASEBAND RX, TERR TX, BASEBAND TX, IFEC
TX}
Terrestrial Loopback is performed at the Terrestrial Interface
IF: IF loopback loops the IF output of the Modulator to the IF
input of the Demodulator. If using 8PSK or 16QAM Modulation,
the output power must be above
n
}
-n
}
-15 dB.
User Interfaces
TERR
4–41