The device shown in Figure 17-1 is an RS-232–to–TTL converter board, designed to allow a PC with a serial (RS-232) port to communicate with a device that has a console (TTL) port. External converters ...
A "Cable Modem" is a device that allows high-speed access to the Internet via a cable TV (CATV) network. A cable modem will typically have two connections, one to the cable wall outlet and the other ...
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