9.457 Newtec-MCX7000-Demodulator

This page describes the Newtec-MCX7000-Demodulator device driver and its device window. The Newtec-MCX7000-Demodulator device driver monitors and controls one demodulator configured in a Newtec MCX7000 Multi-carrier Satellite Gateway.

Multiple instances of the device may be configured in the sat-nms M&C to handle all demulators of the gateway. All devices referring to the same physical device must be configured at the same device thread / interface to ensure that SNMP requests to the device do not overlap.

The 'demod' configuration parameter is used to select which of the defined demodulators in the Gateway this particular sat-nms device shall control.

The driver was tested with DVB-S, DVB-S2 (X) demodulation. Other modulation schemes and their specific parameter set were not implemented/tested. Depending on the selected modulation scheme specific monitoring parameters are available. For DVB-S the correct setting of modulation and fec is mandatory whereby this is automatically recognized using S2. Defining a physical layer scrambler signature only applies for S2/S2X.

Device window pages

The following table shows which device window pages are available with this individual device type. Tool-bar functions not mentioned here are described at the general description of device windows .

Configuration parameters

At the maintenance page of the device window there are a couple of configuration parameters which must be set to make the software talk to the device.

parameter description
address The SNMP address specification for the device (details below).
demod Selects the IP output in the gateway to control. The

software automatically evaluates the number of available IP outputs at the gateway after software startup and sets the available choices of this parameter accordingly. To force an update of the output list without restarting the software press the RESET button at the Maintenance page. |

| spectrumSense | Defines the spectrum inversion sense of the demodulator. |

| marginThreshold | Defines the minimum s/n margin value the driver accepts as OK. s/n margin values below this threshold raise an "Margin" fault (faults.30). The margin fault detection is done by the sat-nms device driver, not by the device itself. Hence, the margin value is stored as a saved parameter on the mnc rather than as a parameter in the Demodulator. |

SNMP address specification

The full address consists of the following fields: aaa.bbb.ccc.ddd:pppp read-community write-community

parameter description
aaa.bbb.ccc.ddd The IP address of the device in 'dotted quad' notation. This field is mandatory.
pppp The IP port number where the device accepts SNMP requests. The port number may be omitted, the driver uses the standard port 161 in this case.
read-community The SNMP read community name. This must match the read community expected by the device.
write-community The SNMP write community name. This must match the write community expected by the device. The write community name may be omitted, the driver uses the read community name for both, read and write in this case. If both community names are missing, the driver uses public as a default for read and write community string.

Variables defined by this device driver

name type flags range
info.driver TEXT R/O StringRange R/O
lowLevel.cmd TEXT StringRange
lowLevel.reply TEXT R/O StringRange R/O
faults.99 ALARM R/O AlarmFlagRange R/O (Communication)
faults.commstat TEXT R/O StringRange R/O
info.type TEXT R/O StringRange R/O
info.port TEXT R/O StringRange R/O
info.frame TEXT R/O StringRange R/O
info.serial TEXT R/O StringRange R/O
info.revision TEXT R/O StringRange R/O
config.readBackDelay INTEGER SAVE SETUP IntegerRange (100 .. 20000)
config.demod CHOICE SAVE SETUP EnumRange (1 2 3 4 5 6)
config.spectrumSense CHOICE SETUP EnumRange (DIRECT INVERTED AUTO)
config.marginThreshold FLOAT SAVE SETUP DoubleRange (0.0 .. 0.0)
enable CHOICE EnumRange (ON OFF)
input CHOICE EnumRange (1 2)
dvbMode CHOICE EnumRange (DVBS DVBS2 TURBO AMDVBS AMCNBC DVBS2X AMCD)
streamMode CHOICE EnumRange (SINGLE MULTI)
frequency FLOAT DoubleRange (0.000000 .. 0.000000)
symbolRate FLOAT DoubleRange (0.0000 .. 0.0000)
searchRange INTEGER IntegerRange (0 .. 0)
ifBandwidth FLOAT R/O DoubleRange R/O (0.000000 .. 0.000000)
rolloff CHOICE EnumRange (AUTO 5% 10% 15% 20% 25% 35%)
modCod CHOICE EnumRange (QPSK-1/2 QPSK-2/3 QPSK-3/4 QPSK-5/6 QPSK-6/7 QPSK-7/8 8PSK-2/3 8PSK-5/6 8PSK-8/9 16QAM-3/4 16QAM-7/8)
modulation CHOICE EnumRange (QPSK 8PSK 16QAM)
fec CHOICE EnumRange (1/2 2/3 3/4 5/6 6/7 7/8)
scrambler INTEGER IntegerRange (0 .. 262141)
flags.lock BOOLEAN R/O BooleanRange R/O (true false)
flags.level CHOICE R/O EnumRange R/O (EXACT DOWN UP UNKNOWN)
state.level FLOAT R/O DoubleRange R/O (0.00 .. 0.00)
state.carrier FLOAT R/O DoubleRange R/O (0.00 .. 0.00)
state.nonLinearPm INTEGER R/O IntegerRange R/O (0 .. 0)
state.nonLinearAm INTEGER R/O IntegerRange R/O (0 .. 0)
state.symbolRate FLOAT R/O DoubleRange R/O (0.000000 .. 0.000000)
state.offset FLOAT R/O DoubleRange R/O (0.00 .. 0.00)
state.margin FLOAT R/O DoubleRange R/O (0.00 .. 0.00)
state.spectrumSense CHOICE R/O EnumRange R/O (DIRECT INVERTED UNKNOWN)
meas.rolloff CHOICE R/O EnumRange R/O (AUTO 5% 10% 15% 20% 25% 35% UNKNOWN)
state.viterbiBer TEXT R/O StringRange R/O
state.ber TEXT R/O StringRange R/O
state.qefMargin FLOAT R/O DoubleRange R/O (0.00 .. 0.00)
state.ebno FLOAT R/O DoubleRange R/O (0.00 .. 0.00)
state.esno FLOAT R/O DoubleRange R/O (0.00 .. 0.00)
state.pn FLOAT R/O DoubleRange R/O (0.000 .. 0.000)
state.offsetToRef FLOAT R/O DoubleRange R/O (0.0 .. 0.0)
frames INTEGER R/O IntegerRange R/O (0 .. 0)
framesError INTEGER R/O IntegerRange R/O (0 .. 0)
framesSlip INTEGER R/O IntegerRange R/O (0 .. 0)
reset TEXT NOPRESET StringRange
internal.enable TEXT R/O StringRange R/O
internal.dvbMode TEXT R/O StringRange R/O
internal.modfec TEXT R/O StringRange R/O
internal.modCodDvbS TEXT R/O StringRange R/O
internal.modCodDvbS2 TEXT R/O StringRange R/O
faults.01 ALARM R/O AlarmFlagRange R/O (Internal)
faults.02 ALARM R/O AlarmFlagRange R/O (High Input)
faults.03 ALARM R/O AlarmFlagRange R/O (PL Lock)
faults.04 ALARM R/O AlarmFlagRange R/O (Demod Lock)
faults.05 ALARM R/O AlarmFlagRange R/O (LNB supply)
faults.06 ALARM R/O AlarmFlagRange R/O (Overload)
faults.30 ALARM R/O AlarmFlagRange R/O (Margin)