User's Manual

Chapter 1 NCL1135 Overview
2 APCD–NC003–1.0
The NCL1135 is used to extend Ethernet networks, access the Internet at high speed, connect
remote locations, and perform general data networking without the ongoing costs of leased
telephone or data lines.
The NCL1135 provides an Ethernet interface that allows you to connect to most Ethernet
networks or devices. One NCL1135 modulates and transmits data to remote NCL1135s, which
demodulate, decode, and pass the data to the receiving user network. DSSS signal
processing exploits the ability of transceivers to spread the signal information over a wide
channel bandwidth. This reduces the potential for interference with neighboring
communications systems. Because the NCL1135 operates in the microwave frequency range,
a line-of-sight communication link is required, therefore, some installations have the antenna
on rooftops or communications towers.
The NCL1135 is user-configurable and can be remotely upgraded. The NCL1135 operating
system supports simple network management protocol (SNMP) which allows for constant
status monitoring of any NCL1135 in your network.
All aspects of WaveRider’s spread-spectrum transceiver are controlled through the integration
of a powerful microprocessor. The 2.4 GHz radio transceiver allows a single NCL1135
operating in “master” mode to deliver data to and receive data from a maximum of 20
NCL1135 devices operating in “station” mode.
The NCL1135 design permits three master units to operate in close proximity without
interfering with each other. For example, three master units each supporting 20 station units
can operate in close proximity, thus establishing 60 links.