Using The Cable Modem Upstream Option - Ubee DDW262.G User Manual

Using the Cable Modem Upstream Option

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.
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Label
Frequency
Lock Status
Channel ID
Modulation
Symbol Rate (Msym/sec)
Interleave Depth
Power Level (dBmV)
RxMER (dB)
Correctable Codewords
Uncorrectable Codewords
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Ubee DDW262.G Wireless Cable Modem and Router Subscriber User Guide • September 2011
Description
Displays the downstream channel frequency on which the
cable modem is scanning.
Displays if the cable modem succeeded in locking to a
downstream channel.
Displays the downstream channel ID.
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.
Displays the symbol rate. The current cable modem
downstream symbol rates are: QAM64 is 5056941 sym/sec,
QAM256 is 5360537 sym/sec.
Displays the current cable modem downstream Interleave
depth (4/8/16/32/64/128/other).
Displays the receiver power level after ranging process.
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.
Displays the quantity of codewords which are correctable.
Displays the quantity of codewords which are not correctable.
Recaptures and displays screen values.
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