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external modem

   Also found in: Medical, Wikipedia, Hutchinson 0.07 sec.

A self-contained modem that is connected via cable to the serial port of a computer. It draws power from a wall outlet. The advantage of an external modem is that a series of status lights on the outside of the case display the changing states of the modem (off-hook, carrier detect, transmitting, etc.). In varying degrees, the communications program informs the user as well. However, having the indicators on the unit itself is very helpful if a problem occurs. Contrast with internal modem.

External Modem
The status lights on external modems, such as on this Courier V.Everything modem from U.S. Robotics, keep you informed throughout your communications session. They are very helpful when something goes wrong. (Image courtesy of U.S. Robotics.)


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The external modem plugs into a standard socket in the back of a personal computer.
These include the Avatex 1200 external modem, the Cardinal 1200 external modem, the Smalltalk 1200 external modem, and the Everex 1200 external modem.
This internal modem bay eliminates external modem wiring, power supply and mounting costs, enabling streamlined installation and more complete and faster (thus lower cost) pre-assembly.
 
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