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 ...

I am a cable modem installer.<BR><BR>First, you got the model number wrong.<BR>Toshiba PCX1100 or PCX1100u (the latter has a usb port).<BR><BR>Second, that cable modem is programmed via TFTP (a script ...

Most reverse engineering projects we see around here have some sort of practical endpoint in mind. Usually, but not always. Reverse-engineering a 40-year-old cable modem probably serves no practical ...