This was an interesting article on the UPS handheld especially when compared with the one developed by Itronix for Itron. At any one time there will be at least three different communication mechanisms within the handheld (the DIAD IV) as described in the following quote:
"Each DIAD IV will feature a built-in Global Packet Radio Service or Code Division Multiple Access radio (depending on the area of the world in which it is operating); an acoustical modem for dial-up access if necessary, and wireless local area network connectivity (WiFi) to enable transmission within a UPS center. The device also features a Bluetooth wireless personal area network and an infrared port to communicate with peripheral devices and customer personal computers."
3:50:02 PM
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