Using the Cable Modem Upstream Option
Ubee Interactive
22
Ubee DDW262.G Wireless Cable Modem and Router Subscriber User Guide • September 2011
listed following the screen example.
4.4
Using the Cable Modem Upstream Option
The
Upstream
screen displays detailed information on the device’s connection to
upstream channels to the service provider.
Label
Description
Frequency
Displays the downstream channel frequency on which the
cable modem is scanning.
Lock Status
Displays if the cable modem succeeded in locking to a
downstream channel.
Channel ID
Displays the downstream channel ID.
Modulation
Displays the modulation method that’s required for the
downstream channel to lock on to by the cable modem. This
method is determined by the service provider.
Symbol Rate (Msym/sec)
Displays the symbol rate. The current cable modem
downstream symbol rates are: QAM64 is 5056941 sym/sec,
QAM256 is 5360537 sym/sec.
Interleave Depth
Displays the current cable modem downstream Interleave
depth (4/8/16/32/64/128/other).
Power Level (dBmV)
Displays the receiver power level after ranging process.
RxMER (dB)
Displays the Receiver Modulation Error Ratio. The RxMER is
used to quantify the performance of a digital radio receiver in a
communications system using digital modulation.
Correctable Codewords
Displays the quantity of codewords which are correctable.
Uncorrectable Codewords
Displays the quantity of codewords which are not correctable.
Refresh
Recaptures and displays screen values.
