IR220 is a RS232 to RAW IR (IrPHY Only) adapter, it can convert RS232 data to infrared, no need to install driver. It features a RS232 serial cable replacement on PC or embedded system. There are 7 different default rates, 9600 rate by default , you can revise by yourself. WHEN qty is 10pcs or above, you can request to set the bautrate you want. Deriving power from DTR and of standard RS232 interface, user must enable DTR and before using it, or connect DTR/ pin to 3.7V~12V external DC directly. The default rate of IR220 IR adapter is 9600bps, IRXON can also supply adapters with the default rate at 2400, 4800, 19200, 38400, 57600 or 115200 . There is a red LED on the top center of the adapter body, the LED indicate the activity of infrared TX signal. Connection: DB9-F RS232 Serial COM Port Default rate: 9600 Default baudrate : 2400/4800/19200/38400/57600/115200 Communication Distance: 1 to 100 cm. (15optical cone angle) Size and weight: 2.8inch L x 1.63inch W x 0.68inch H ( 67 x 46 x 19 mm) , 2.44oz (73g) RS232 Cable length: 1.2m Power Source: From DTR and pin of DB9 RS232 port Power Consumption: 0.3W Operating Temperature: -10 to 60 Model Number: IR220 infrared adapter SUPPORT: Windows 98SE/Me/2000/XP color:As shown Material:plastic Package Contents: 1 x IR220 RS232 Serial Port IR Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.