Modem
Reference Manual for EL470 IP Satellite Modem
Command
MoTxData
Transmit data Transmit data
Location /Modem/Test/Modulation
Description
Configuration which source will transmit data. Select between external
data input as source to transmit data (default) and internally generated
PRBS. For testing, installation and link evaluation, the internal data
generator on the modulator can be used as a transmit data source. This
data source generates a PRBS (pseudo random binary sequence) data
stream of 2^23-1 as specified in CCITT Rec. 0.151.
In conjunction with a Newtec demodulator that is standard equipped with
an automatic PRBS detector, the possibility exists to determine the actual
BER performance of a satellite link.
RMCP
Command
TDi Access Normal user : no access
Expert user : RW
SNMP Table ntcDevsMod01ModulatorEntry
Command ntcDevsMod01MoTxData
OID 1.3.6.1.4.1.5835.3.1.3.1.35.1.1
Values Factory Default
external
Enumeration Value
External
Int testgenerator
0
5
Command
MoTgFrameType
DVB-S2 Testgenerator
FEC-Frame type
Testgen Frame type
Location /Modem/Test/Modulation
Description
Configuration of the DVB-S2 FEC-frame type parameter on the test
generator when MoTgFrameFormat is set to baseband frames.
DVB-S2 defines two FEC-frame types:
• Normal FEC-frames of 64800 bits or 8100 bytes.
• Short FEC-frames of 16200 bits or 2025 bytes.
RMCP
Command
TCF Access Normal user : no access
Expert user : RW
SNMP Table ntcDevsMod01ModulatorEntry
Command ntcDevsMod01MoTgFrameType
OID 1.3.6.1.4.1.5835.3.1.3.1.108.1.1
Values Factory Default
short
Enumeration Value
Short
Normal
0
1
version 3.1
239
SHAPING THE FUTURE OF SATELLITE COMMUNICATIONS
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