User's Manual

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Overview of the XMTS and Modem Configuration – p. 31
Chapter 4. Overview of the XMTS and
Modem Configuration
This section provides an overview of the steps and tools necessary to configure
both sides of the communications link (XMTS and modem) required to add a data
modem or the data portion of a new E1/T1 modem to the network. Several
different tools and files are used as described below.
1. Make sure that the three required servers are installed and
operational: DHCP, ToD and TFTP. For details see Chapter 8,
Installing Vyyo Servers for XMTS Operation. The failure of the
modem to establish communication with any of these three servers
will prevent the modem from completing the registration process.
1. Review the Network IP Plan and use it to assign an IP address to the
XMTS, then make it permanent by following the procedure in the section
Setting the XMTS IP Address.
2. Verify that the right software version is loaded into the XMTS as
described in Appendix B. See the “readme” notes in the distribution
software for the version number.
3. Review the RF plan for the network and configure the XMTS
upstream and downstream channels accordingly using the procedures in
Setting the Upstream Channel. It may not be necessary to configure new
upstream and downstream channels when adding a modem; but if
required, the Vyyo Configuration tool can be used to modify these
parameters.
4. Review the RF Plan to find out which downstream frequency(ies) and
upstream channel ID(s) the modem will use to communicate with the
XMTS. Use the WMUConfiguration Editor (wmuConfigFileEditor.exe) to
edit the modem configuration file that will be downloaded to the modem
during the modem initialization sequence to reflect these choices and
other needed parameters (e.g., QoS or Class of Service, Max Number of
CPE, BPI Enable/Disable – required for E1/T1, etc.). If you know in
advance that this modem will be used for an E1/T1 connection then
additional edits may be made at this time as described in Chapter 6,
Configuring a T1 Connection.
NOTE: One modem configuration file may be used for
several modems if the same upstream channel ID and
downstream channel are used by all the modems (i.e.,
same “profile”); thus, this step may not be required every
time a new modem is added to the system.