Elpro Technologies 450U-E Wireless Ethernet Modem & Device Server User Manual
Rev Version 1.0.12-Beta7
www.cooperbussmann.com/wirelessresources
7
CHAPTER 1 - INTRODUCTION
The 450U-E Industrial 802.11 based Wireless Ethernet module provide wireless connections between Ethernet devices
and/
450U-E, 5 Watt max power
The 450U-E is a fixed frequency wireless transceiver that operates in the 380MHz to 520 MHz frequency communications
band. There are various frequency bands available depending on the model purchased.
The 450U-E unit provides two serial connections as well as the Ethernet connection. It is possible to use all three data
connections concurrently, allowing the 450U-E to act as a Device Server where wireless connections can be made
between serial devices and Ethernet devices. The 450U-E also
. Appropriate driver applications will be required in the host devices to
handle other protocols.
The modem is capable of passing VLAN tagged frames.
The 450U-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 19.2Kbit/sec depending on model, band, encryption
methods, and radio paths.
Network Topology
1.0
The 450U-E is an Ethernet device, and must be configured as part of an Ethernet network. Each 450U-E must be
configured as an:
(Station)
You can also connect to the 450U-E via a RS232 or RS485 serial port using serial server and allowing the 450U-E to
connect the serial communications into the Ethernet network.
Access Point vs. Client
The Access Point unit acts
. The Access Point accepts and authorises links initiated by the
client units, and controls the wireless communications.
Clients (Stations) are slave units and when connected to the Access Point becomes transparent Ethernet links.
The first diagram shows a connection between two Ethernet devices using 450U-E Ethernet modems. In this example
one 450U-E is configured as an Access Point and the other as a Client.
Figure 1 AP-Client
