User's Manual

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www.aradtec.com
Arad Technologies Ltd.
Yokneam Elite 20692, Israel
Tel: [phone], Fax: [phone]
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1. Introduction
TheAllegrorepeater(“2WREP”)isaplugandplaymulti‐channel/frequencyRF
transceiverunitoperatesat450–470MHzISMband.
The2WREPunitisdesignatedtotransceiver/collectswirelesstransmissionsof
watermeter.
The2WREPsendsthecollecteddatathroughexternalantenna.
The2WREPincludesthefollowingon
boardinterfaceswhichareusedtosendthe
collecteddata:
 TCP/IPstackand10/100BASE‐TEthernetconnection
 USB
 RS232
 DigitalI/O:LogicHighLevelVcc‐0.6V,LogicLowLevel0‐0.6V,Current30mA
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2. About2WREP
1. ElectricalPerformance
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TheRepeaterisanarrowbandradiothatcomplieswithFCCPart90
Thereare2modesofoperation
 TransmitnarrowchannelcompliesPart90
 Receivenarrowchannel