Invisible link Computer users on the go can save a significant amount of time and frustration with a new infrared communications adapter from AMP Inc., Harrisburg, Pa. The compact device, called a Phasir, connects to the serial port of a laptop or desktop PC. To transmit data, simply aim the Phasir at an optical port on another system, such as a printer or PC, and execute the function as you normally would over conventional cables.
Phasirs come with a 9 or 25-pin RS-232 connector, power supply, and 2-m cable. They can communicate with any device having an Infrared Data Association (IrDA) compatible IR port or AMP Phasir adapter. The adapter conforms to IrDA SIR protocol with data rates of 115,200 bps, as well as ASK protocol employed by electronic organizers such as the Sharp Wizard. Using other protocols, the adapter can reach speeds of up to 4 Mbps.