DTE-3114 – Networked Quad QAM Modulator
USER
MANUAL
19
Variable
Description
Web
SNMP
Symbol rate
The symbol rate of the channel
R/W
R/W
Interleaver I
Interleaver parameter I
R/W
R/W
Interleaver J
Interleaver parameter J
R/W
R/W
RF level
The median desired RF output level per channel. For each
of the 4 channels, a small offset can be specified relative
to this level
R/W
R/W
RF level offset
The desired offset (-3 .. +3dB) relative to “RF level”
R/W
N/A
Settings status
Indicates whether the modulator settings are consistent
and valid (‘ok’), or an error indication. Refer to section
3.5 for a list of errors.
RO
RO
3.2.5 Status
The status information is available for each of the 4 channels.
Variable
Description
Web
SNMP
Operational status
Operational status of the modulator channel:
Ok
. The channel is working properly.
Disabled.
The channel is disabled. The RF output of the
channel is turned off.
Settings error
. The (new) settings of the channel are not
correct. The settings should be modified before they
can be applied.
No input error
. The channel is enabled but no valid IP
stream is present.
RO
RO
Protocol
IP protocol used by the incoming IP stream (UDP / RTP)
RO
RO
Number of TP per IP
Number of Transport Packets per IP packet in the
incoming IP stream
RO
RO
FEC number of rows
Number of FEC rows in the incoming IP stream
RO
RO
FEC number of
columns
Number of FEC columns in the incoming IP stream
RO
RO
Lost before FEC
Number of IP packets lost before FEC reconstruction
RO
RO
Lost after FEC
Number of IP packets lost after FEC reconstruction
RO
RO
IP jitter tolerance
The time (in ms) that the channel waits to receive
'late' IP packets. This delay enables the channel to tolerate
IP jitter up to the indicated value
RO
RO
FEC delay
The time (in ms, excluding jitter) required to receive all
FEC packets corresponding to a 2D FEC block
NA
RO
TS packet size
Size of the MPEG-2 packets in the received Transport
Stream
RO
RO
TS bitrate
Estimated bitrate of the Transport Stream (188-byte
Transport Packets)
RO
RO
TS PCR present
Indicates whether the incoming Transport Stream contains
PCRs
RO
RO
