Version 1.0, 11/2017. Copyright 2012 Hitron Technologies
31
Version 1.0, 11/2017. Copyright 2017 Hitron Technologies
31
Hitron E31N2V1 User’s Guide
Uncorrectables
This displays the number of blocks received that
required correction due to corruption, but were unable to
be connected.
Channel ID
This displays the ID number of each channel on which
the downstream signal is transmitted.
Reset FEC Counters
Click this to return the Forward Error Connection (FEC)
columns (
Correcteds
and
Uncorrectables
).
OFDM Downstream Overview
Receiver
This displays the index number of the OFDM receiver
).
FFT Type
This displays the type of Fast Fourier Transform in use
on the relevant OFDM receiver (see
).
Subcarr 0 Frequency
(Hz)
Each OFDM signal consists of multiple subcarriers.This
displays the frequency, in Hertz, of the first OFDM
subcarrier on the relevant receiver.
PLC Locked
This displays whether or not the relevant OFDM
connection’s physical link channel (PLC) data is locked.
The PLC tells the E31N2V1 how to decode the OFDM
signal, and what power level to use. Once the E31N2V1
receives a PLC without uncorrectable errors, the PLC is
locked and subsequent communication can continue.
NCP Locked
This displays whether or not the relevant OFDM
connection’s next codeword pointer (NCP) data is
locked. The NCP tells the E31N2V1 which codewords
are to be used for OFDM communication, and which
profile to use for each codeword. Once the E31N2V1
receives an NCP without uncorrectable errors, the NCP
is locked and subsequent communication can continue.
MDC1 Locked
This displays whether or not the relevant OFDM
connection’s Multipath Delay Commutator (MDC) data
is locked. This provides information about the method of
Fast Fourier Transform (FFT) to be used on the OFDM
connection. Once the E31N2V1 receives an MDC1
without errors, the MDC1 is locked and subsequent
communication can continue.
PLC Power (dBmV)
This displays the power level the E31N2V1 has been
instructed to use on the relevant OFDM connection by
the physical link channel (PLC) data, in dBmV (decibels
above/below 1 millivolt).
Table 5:
The Status: DOCSIS WAN Screen (continued)
