User guide

3.3 Cable Modem - Downstream Ubee Interactive
14 DDW3612 Subscriber User Guide • July, 2010
3.3 Cable Modem - Downstream
This section explains how to use the Downstream screen of the web interface. The
Downstream screen displays detailed information on the device’s connection to
downstream channels from the service provider.
1. Access the web interface. Refer to page 7, if needed.
2. Click the Downstream link from the left side of the screen. Field explanations are
listed below the following screen example.
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 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 Displays the receiver power level after ranging process.