IRDA

IRDA may refer to:

List of Dragonlance creatures

The list of Dragonlance creatures attempts to list the races that can be found in the Dragonlance setting.

Dragons

According to the Dragonlance Campaign Setting, dragons are the original beings of Krynn, born from the world and the elements. The dragons of Krynn are distinguished from other dragons because they take active roles in the fate of the lesser races.

The dragons of Dragonlance appear much as their counterparts in other Dungeons & Dragons worlds.

Chromatic Dragons

The chromatic dragons are red, white, green, black and blue varieties of dragons. They are evil and work under the direction of Takhisis before her departure from the world. They generally work in order to bring about Takhisis's reentry into the world, prior to her death.

Black dragons are malevolent, tricky, and self-serving. They take interest only in themselves. They serve Takhisis out of fear, and disdain the lesser races of the world. They prefer to live in swamps and marshes. They are capable of changing lands into swamp to suit them. They are suspicious of everything and everyone. They are skilled at using magic, using it for deception in battle. They rarely fight honorably, instead using their cunning to win and retreating if they cannot. Their breath weapon is acid.

Infrared Data Association

The Infrared Data Association (IrDA) is an industry-driven interest group that 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. Thus, it has been implemented in portable devices such as mobile telephones, laptops, cameras, printers, medical devices. 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: