Hitron CODA-551x User Manual

Version 1.1, 09/2020. Copyright 2012 Hitron Technologies
47
Version 1.1, 09/2020. Copyright 2020 Hitron Technologies
47
Hitron CODA-551x User’s Guide
Correcteds This displays the number of blocks received that
required correction due to corruption, and were
corrected.
Uncorrectables This displays the number of blocks received that
required correction due to corruption, but were unable to
be connected.
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
(see OFDM on page 40).
FFT Type This displays the type of Fast Fourier Transform in use
on the relevant OFDM receiver (see FFT on page 40).
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 CODA-551x how to decode the
OFDM signal, and what power level to use. Once the
CODA-551x 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 CODA-551x which codewords
are to be used for OFDM communication, and which
profile to use for each codeword. Once the CODA-551x
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 CODA-551x receives an MDC1
without errors, the MDC1 is locked and subsequent
communication can continue.
PLC Power (dBmV) This displays the power level the CODA-551x 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 9: The Status: DOCSIS WAN Screen (continued)

Hitron CODA-551x Specifications

General

Brand	Hitron
Model	CODA-551x
Category	Gateway
Language	English