9XCite"燨EM燫F燤odule?燩roduct燤anual爒2.1燵2007.01.04]
2007燤axStream,營nc.
牋牋?
2.燫F燤odule燨peration
2.1. Serial Communications
The XCite OEM RF Module interfaces to a host device through a CMOS-level asynchronous serial
port. Through its serial port, the XCite Module can communicate directly with any UART-interfaced
or RS-232/485/422 device.
2.1.1. UART-Interfaced Data Flow
Devices that have a UART interface can connect directly through the pins of the XCite OEM RF
Module as is shown in the figure below.
Figure?01.  Data燜low爄n燼燯ARTinterfaced爀nvironment 
(Lowasserted爏ignals燿istinguished爓ith爃orizontal爈ine爋ver爏ignal爊ame.)
2.1.2. RS-232 and RS-485/422 Data Flow
The XCite Module can enable a host device to communicate wirelessly. To transmit, the host device
simply sends serial data to the XCite Module pins. The XCite Module then converts the data into
FCC-approved RF data. Once transmitted, the RF data can be detected by receiving XCite Modules,
checked for integrity and then sent to a receiving device.
Figure?02.  Data燜low爄n燫S232燼nd燫S485/422爀nvironments.?SPAN class="pst XIB-R_2124010_3"> 
(Lowasserted爏ignals燿istinguished爓ith燼爃orizontal爈ine爋ver爏ignal爊ame.)
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