September 2001
Beginner
528 pages
14h 14m
English
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DCE—Connections to Telephone Lines
Data circuit-terminating equipment (DCE), also referred to as analog and digital modems, sit between the telephone line and computers or multiplexers. The multiplexers, computers and PBXs, data terminating equipment (DTE) (see Figure 7.1) is connected to the modem. The increase in the computing power of chips and functionality of digital signal processors (DSPs) has resulted in the shrinking size of DCE devices. The following are sample configurations:
Modems for PCs are either cards located in an internal slot of PCs or external devices that plug into the serial port of the computer. In either case, they are plugged directly into a telephone company jack. Standalone modems need their own power source. Integrated ...
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