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  #1  
June 5th, 2016, 02:18 PM
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Ufir irda

Hii Buddy , Here Would you please Provide me Infrared Data Association(IrDA) UFIR USB Hard ware Characteristics ?
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  #2  
June 6th, 2016, 09:10 AM
Super Moderator
 
Join Date: Mar 2013
Re: Ufir irda

The Infrared Data Association (IrDA) is an Industry-Driven Interest Group

It was Founded in 1993 by around 50 companies.

IrDA Provides Specifications for a complete set of protocols for wireless infrared communications, and the name "IrDA" also refers to that set of protocols.


The main Reason for using IrDA had been wireless data transfer over the “last one meter” using point-and-shoot principles.


Main characteristics of this kind of wireless optical communication is physically secure data transfer, line-of-sight (LOS) and very low bit error rate (BER) that makes it very efficient.

Specifications :


IrPHY

The mandatory IrPHY (Infrared Physical Layer Specification) is the physical layer of the IrDA specifications. It comprises optical link definitions, modulation, coding, cyclic redundancy check (CRC) and the framer. Different data rates use different modulation/coding schemes:
SIR: 9.6–115.2 kbit/s, asynchronous, RZI, UART-like, 3/16 pulse
MIR: 0.576–1.152 Mbit/s, RZI, 1/4 pulse, HDLC bit stuffing
FIR: 4 Mbit/s, 4PPM
VFIR: 16 Mbit/s, NRZ, HHH(1,13)
UFIR: 96 Mbit/s, NRZI, 8b/10b
GigaIR: 512 Mbit/s – 1 Gbit/s, NRZI, 2-ASK, 4-ASK, 8b/10b
5/10GigaIR: seems to be a new IrPHY coming soo


Characteristics are:
Range:
standard: 1 m;
low-power to low-power: 0.2 m;
standard to low-power: 0.3 m.
The 10 GigaIR also define new usage models that supports higher link distances up to several meters.
Angle: minimum cone ±15°
Speed: 2.4 kbit/s to 1 Gbit/s
Modulation: baseband, no carrier
Infrared window
Wavelength: 850–900 nm


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