March 1, 2002 Page C6
Upconverter
75 ohm type F female connectors
Input signal frequency 44 MHz; level range +38 dBmV to +45 dBmV.
Output signal frequency 477 through 577 MHz; maximum signal level +60 dBmV.
100 Mbps Ethernet Switch
The Ethernet switch is the connection point for all TCP/IP data flow on the
ARCi Internet
side of the gateway (subnet).
Subscriber traffic flows through the Gateway to the Internet via the Switch, as does
Network Management traffic to and from the WMTS and the Internet. Other devices such
as a laptop computer can be plugged into the switch provided that they are configured
with the proper TCP/IP addresses for the system subnet.
Network Manager PC
The network manager PC provides services to the ARCi Internet system such as DHCP,
TFTP, SysLog and time servers. It also provides remote operational visibility and control
into the
ARCi Internet
via SNMPc. Note that with appropriate address translation in the
Gateway, the Network Manager may be installed at a remote location such as the ISP’s
control center. See the Vyyo V3000 Wireless Hub Users’ Manual for more detail.
The network manager PC also monitors certain parameters of the transmitter(s) and
receiver(s) located within the associated ARCi hubs. It also enables upstream frequency
selection for each hub receiver. [Telemetry support for this function will be available in
late 2002]..
Gateway / Router / Backhaul
This equipment provides functions required to interface the
ARCi Internet
system to the
backhaul transmission facility to the ISP, which will normally specify and configure this
equipment. It interconnects with the
ARCi Internet
system via a standard port on the
100 Mbps Ethernet switch.
Some notes on the gateway
Once it is configured and running, the ARCi wireless network is simply a standalone IP
network that requires the presence of a gateway through which packets are routed
between the ARCi network and the Internet. The network interface on the ARCi side of the
gateway must be 100baseT Ethernet. The gateway itself is typically one of two types
depending on the network IP address:
Summary of Contents for AR1255
Page 4: ...March 1 2002 Page A1 A Table of Contents ...
Page 6: ...March 1 2002 Page B1 B Introduction C t t ...
Page 9: ...March 1 2002 Page C1 C System Description ...
Page 18: ...March 1 2002 Page D1 D Antenna and Frequency Planning ...
Page 24: ...March 1 2002 Page E1 E Hub Installation Detail ...
Page 29: ...March 1 2002 Page E6 Figure E4 Hub Antenna and Cable Installation Cable Access ...
Page 40: ...March 1 2002 Page F1 F Subscriber Inst l Details ...
Page 46: ...March 1 2002 Page G1 G Link Budget Parameters ...