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Appendix F. Establishing IR Communications
Transport® Model PT878 Portable Liquid Flowmeter User’s Manual 257
Appendix F. Establishing IR Communications
As discussed in Chapter 2, the PT878 includes an infrared transceiver for
communication with IR products that comply with the IrDA protocol.
However, you must also be sure that the operating system of your personal
computer offers IrDA compatibility and either a built-in IR port (available
on most laptops) or an IR dongle (IR to RS232 adapter for PCs without a
built-in IR port). Be sure to position the interface in a way that permits
transmission between the interface and the infrared sensor on the PT878,
shown in Figure 2 on page 6.
Note: The dongle connection is RS232. The configuration options are either
RS232 or IRDa. Selecting the RS232 does not link the meter to the
dongle. IrDa must be selected for the link to work.
Table 10 below lists IrDA compatibility for various past and current
Microsoft Windows operating systems. IrCOMM is an infrared standard
supported by Microsoft, while OBEX is a newer infrared standard which
allows more straightforward use and faster file transfers, while tolerating IR
interruptions better.
Table 10: IrDA Compatibility of Windows Operating Systems
Operating System IrCOMM OBEX
Windows XP No Yes
Windows 2000 No Yes
Windows NT 4.0 QuickBeam* QuickBeam*
Windows Me* Yes Yes
Windows 98 SE* Yes Yes
Windows 98* Yes Yes
Windows 95* Yes Yes
Windows 3.1 No No
DOS 6.22 No No
*May require QuickBeam installation under some circumstances when
Windows built-in support fails. QuickBeam is a recommended infrared
file software transfer utility from Extended Systems, Inc. Since Windows
NT4.0 does not provide built-in support for IR file transfer, QuickBeam is
necessary with this operating system.