IrDA

IrDA can be used to communicate using Infrared to other IrDA compliant devices, such as other Notebooks, PDAs and mobile phones.

Pre-2006 IBM ThinkPads have integrated IrDA that can be used in one of two modes, SIR or FIR.

• SIR is limited to serial datarates up to 115.2Kb/s
• FIR is the preferred mode of IrDA operation and operates at a bandwidth of 4 Mbps

Some very old ThinkPads only support SIR mode, or might not have IrDA support at all.

A newer VFIR standard exists, which supports speeds upto 16Mbps. However for the moment no ThinkPads support this.

Linux support

See How to make use of IrDA.

External Sources

• Linux-IrDA Project (External)
• Linux PCMCIA Project (External)
• tpctl homepage (External)
• Linux Infrared Remote Control (External)

ThinkPad Models featuring this Technology

IrDA 1.0 (SIR - 115Kbps)

• 365C, 365CD, 365CS, 365CSD, 365E, 365ED, 365X, 365XD
• 535, 535E
• 560
• 755CD, 755CDV, 755CE, 755CSE, 755CV, 755CX
• 760C, 760CD, 760E, 760ED, 760EL, 760ELD, 760L, 760LD, 760XD, 760XL
• 765D, 765L
• PC110

IrDA 1.1 (FIR - 4Mbps)

• 240, 240X
• 380, 380D, 380E, 380ED, 380XD, 380Z
• 385D, 385ED, 385XD
• 390, 390E, 390X
• 535X
• 560E, 560X, 560Z
• 570, 570E
• 600, 600E, 600X
• 770, 770E, 770ED, 770X, 770Z
• A20m, A20p, A21e, A21m, A21p, A22e, A22m, A22p, A30, A30p, A31, A31p, A275, A285, A475, A485
• i Series 1720, i Series 1721
• R30, R31, R32, R40, R50, R50p, R51, R52
• T20, T21, T22, T23, T30, T40, T40p, T41, T41p, T42, T42p, T43, T43p, T60, T60p
• X22, X23, X24, X30, X31, X32, X40, X41, X41 Tablet, X60, X60s
• Z60m, Z60t, Z61m
• TransNote