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 ...
Those of us with separate modems and routers (some Internet connections have the two functions combined into a single device) are likely to focus on the router and ignore the modem. But, like a router ...
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