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XYR301E Wireless Ethernet
Chapter One
The XYR301-E Industrial 802.11 Wireless Ethernet module provide wireless connections between Ethernet devices
and/or Ethernet wired networks (LAN's) and complies with relevant IEEE 802.11 standard.
XYR301-E 802.11 630mW max power
The XYR301-E uses a 900 MHz Direct Sequence Spread Spectrum (DSSS) wireless transceiver. There are four bands
with each band utilizing different frequencies and bandwidths dependent on the country and their radio regulations. See
Section 3.1 "Selecting a Channel" for a more detailed overview.
The XYR301-E unit also provides two serial connections as well as the Ethernet connections. It is possible to use all
three data connections concurrently, allowing the XYR301-E to act as a Device Server. Wireless connections can be
made between serial devices and Ethernet devices. The XYR301-E provides connection functionality between serial
"Modbus RTU" devices and Ethernet "Modbus TCP" devices. Appropriate driver applications will be required in the
host devices to handle other protocols.
The XYR301-E has a standard RJ45 Ethernet connection which will operate at up to 100Mbit/sec. The module will
transmit the Ethernet messages on the wireless band at rates between 1 and 54 Mbit/sec & 6 and 54 Mbit/sec depending
on model, band, encryption methods, and radio paths.
1.1
The XYR301-E is an Ethernet device, and must be
configured as part of an Ethernet network. Each
XYR301-E must be configured as an:
"Access Point" or "Sta", "Station", Client"
Also needs to be configured as a:
"Bridge" or "Router".
You can also connect to the XYR301-E via a RS232 or RS485 serial port using serial server or PPP (point-to-point)
protocol. PPP allows the XYR301-E to connect serial communications into the Ethernet network.
Access Point vs Client
The Access Point unit acts as the "wireless master" unit. The Access Point accepts and authorises links initiated but
client units, and controls the wireless communications.
Clients (Stations) are slave units and when connected to the
Access Point becomes transparent ethernet link.
The first diagram shows a connection between two Ethernet
devices using XYR301-E ethernet modems. In this example
one XYR301-E is configured as an Access Point and the
other as a Client - the Access Point can be connected.
Page 14
INTRODUCTION
Network Topology
User Manual
April 2012
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