Network engineers, teaching materials, DTE and DCE use RS - 232 - C interface between cable connection, and then spread to a wide area network (lines) in the
I want to ask, if the connection is a computer and modem, is actually a twisted-pair connection with eight points, not a 9-pin serial port line, and not to the com from the com, but from the front-end ports to the front-end ports,
Excuse me, how long before the computer and modem is what kind of connection?
Provide the best design. Thank you

CodePudding user response:

Telephone line connection, it has become history, 2000 freshmen match with this, when a computer on the Internet need to use telephone dial-up, was to buy a bunch of Confucius temple 201 phone CARDS, speed can slow a meter, so the computer magazine before what would match the CD, because game software and so on application online update too waste of time also is too expensive, with the CD is the best choice, then a sophomore ADSL broadband slowly begin to generalize the mid, 512 k, then keep the dial

CodePudding user response:

I said is built-in, external use, PCI interface, have to do is find a card slot plug in

CodePudding user response:

The period room inside the network is to use a serial port, is nine transmission, Ethernet appear after just like with nokia smartphone!

CodePudding user response:

Communication is to use a phone line before, a pulse signal, and the cat to your house then WAN mouth dial-up modem,

CodePudding user response:

Divided into a built-in and external cat cat, outer cat with RS232 serial port is connected to a computer, connect the network with the phone lines, dial-up Internet access