Data Acquisition Web

There are optionals layers, all considered high-level protocols, and are not strictly required by IrDA. However, some of them are essential within the context of certain use models, in the same way that HTTP is essential for web access, even if it’s not part of a basic TCP/IP protocol stack.

The optional protocols are:

• IrCOMM - provides COM (serial and parallel) port emulation for legacy COM applications, printing and modem devices.
• IrOBEX - provides object exchange services similar to HTTP.
• IrDA Lite - provides methods of reducing the size of IrDA code while maintaining compatibility with full implementations.
• IrTran-P - provides image exchange protocol used in Digital Image capture devices/cameras.
• IrMC - specifications on how mobile telephony and communication devices can exchange information. This includes phonebook, calendar, and message data. Also how call control and real-time voice are handled (RTCON) calendar.
• IrLAN - Describes a protocol used to support IR wireless access to local area networks.

The use of the optional layers depends upon the particular application.