User's Manual

System Configuration Guide
www.vyyo.com
Adding a Modem to the WMTS – p. 57
5.3 Configuring the WMTS
NOTE: Before you can perform this procedure you must
have previously edited the regtree.txt file, compiled it and
downloaded it to the WMTS to set its IP address. See
Chapter 7. Setting the WMTS IP Address.
This section assumes that you have previously installed
NMS Version 7. See Installing and Uninstalling the NMS
for brief instructions.
The upstream and downstream channels of the WMTS must be configured
before a modem can communicate with the WMTS. This is done using the Vyyo
Configuration Tool. Before proceeding, launch the Vyyo Configuration Tool as
described in Launching the Vyyo Configuration Tool.
5.3.1 Setting the WMTS Upstream Parameters
1. Expand the WMTS tree in the left pane of the Vyyo Configuration Tool
and select the Upstream Channel ID you wish to configure using the
mouse. The Channel ID refers to the physical port on the upstream RF
card that you are configuring. This connection is described in WMTS US
Port Mapping. In this example upstream channel 1 is selected and all of
its parameters are displayed in the right pane of the window.
You may change the frequency the modem is told by the WMTS to
transmit on (labeled “Tx Frequency”), the receive frequency that the
upstream RF port expects to receive the modem’s signal on (this is
labeled “Rx frequency”), its bandwidth, modulation, and the associated
downstream channels, antenna diversity and admin status as needed.
These parameters are transmitted by the WMTS as part of the upstream
channel descriptor (UCD) sent during the DOCSIS modem initialization
process. These parameters should be determined by the system
engineer responsible for the RF planning and are outside the scope of
this manual.