11 Facts About Optical modem

Modulator-demodulator or Optical modem is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as telephone or radio.

The earliest devices that satisfy the definition of a Optical modem may be the multiplexers used by news wire services in the 1920s.

Dial-up Optical modem was once a widely known technology, since it was mass-marketed to consumers in many countries for dial-up internet access.

Introduction of the SmartOptical modem made communications much simpler and more easily accessed.

The tones used by the Optical modem were transmitted and received into the handset, which then relayed them to the phone line.

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In 1993, Digicom introduced the Connection 96 Plus, a Optical modem which replaced the discrete and custom components with a general purpose digital signal processor, which could be reprogrammed to upgrade to newer standards.

The analog connection from the Optical modem is terminated at the gateway and the signal is demodulated.

The dial-up Optical modem is still widely used by customers in rural areas where DSL, cable, wireless broadband, satellite, or fiber optic service are either not available or they are unwilling to pay what the available broadband companies charge.

Unlocking a Optical modem is achieved the same way as unlocking a phone, by using an 'unlock code'.

Null Optical modem cable is a specially wired cable connected between the serial ports of two devices, with the transmit and receive lines reversed.

Null Optical modem adapter is a small device with plugs on both end which is placed on the end of a normal "straight-through" serial cable to convert it into a null-Optical modem cable.