User's Manual

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Overview of the XMTS and Modem Configuration – p. 32
5. .
NOTE 1: Five T1s per 3.2MHz upstream channel using
16QAM modulation is the hard limit for the current
system. Attempting to configure more T1s on an
upstream channel than it can support will cause the
modem initialization to fail. Consult your system engineer
for advice on the maximum number of modems per
upstream channel ID.
6. Use the appropriate DHCP tool for your system to bind the modem’s
MAC address to its IP address and modem configuration file. If ipLease
is used, edit and compile the CM.SRC file as needed. If Windows 200x
Server Edition is used then set these values using the graphical user
interface. These procedures are described in section 5.2.2, Windows
200x Server Edition: Modifying the DHCP Options
NOTE: this step is ALWAYS required when adding a
modem
7. Use the modem’s Telnet server interface to set the modem to a
permanent downstream frequency as described in Setting the Modem’s
Downstream Frequency. Having a permanent (fixed) downstream
frequency (or set of frequencies) expedites the modem initialization
process since the modem does not have to scan multiple downstream
frequencies to find one being transmitted from the XMTS. This does,
however, require some pre-planning of the network to pre-allocate
different downstream frequencies to specific modems. Ask your System
Engineer for details.
NOTE: this step is ALWAYS required when adding a
modem with a fixed permanent downstream frequency
8. If a T1 connection is being setup then use the procedures in
Configuring a T1 Connection. Configure the XMTS upstream channel ID
for E1/T1 operation and bind the XMTS upstream channel ID to the
modem E1/T1 interface and to bind the modem’s E1/T1 interface to a
particular port on the E1/T1 card plugged into the XMTS (use the Vyyo
Configuration tool for this procedure.)
NOTE: the Vyyo Configuration tool binding operation will
ALWAYS be required when adding a T1 modem. This
step can be done after the modem is installed at the
customer’s site.
9. Install the modem at the customer site and connect it to the RF
equipment, provide power to the modem and turn it on.
NOTE: This step is ALWAYS required when adding a
modem