Hitron CODA-57 User Manual

Version 1.0, 12/2022. Copyright 2012 Hitron Technologies
31
Version 1.0, 12/2022. Copyright 2022 Hitron Technologies
31
Hitron CODA-57/57-EU 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
(see OFDM on page 25).
FFT Type This displays the type of Fast Fourier Transform in use
on the relevant OFDM receiver (see FFT on page 25).
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-57/57-EU how to decode the
OFDM signal, and what power level to use. Once the
CODA-57/57-EU 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-57/57-EU which
codewords are to be used for OFDM communication,
and which profile to use for each codeword. Once the
CODA-57/57-EU 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-57/57-EU receives an
MDC1 without errors, the MDC1 is locked and
subsequent communication can continue.
PLC Power (dBmV) This displays the power level the CODA-57/57-EU 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-57 Specifications

General

Brand	Hitron
Model	CODA-57
Category	Modem
Language	English