Re: [NTLK] Q:Nitro/IrDA docking, speed?

From: Eckhart Köppen (
Date: Sun Jun 01 2003 - 12:37:32 PDT

On Sun, 01 Jun 2003 19:48:34 +0200, WL wrote:
> What do you folks think about IR docking (Backup, PKG install, ...) and how
> fast could this IRDA go?

SIR (Slow IrDA) is 115200 kbit/sec maximum. But that is only the raw
speed. The protocol overhead is quite heavy: frames (2k in size for
OBEX, 512 bytes for IrCOMM) are sent in turns (IrDA is half-duplex),
time between turns is 0.5 seconds. So ideally, you'd be able to
transfer 2 * 2k per second.

It is still quite usable, but you should maybe not use it to transfer
MP3 files...


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