null modem cable compared with serial cable ?

how can you tell the difference between a null modem cable and a
serial cable?

i've heard that a null modem cable is for connecting 2 computers
together. So I guess a serial cable is just for connecting a computer
to a device. ?

Is it like a straight through vs a crossover ?

On Mon, 15 Oct 2007 02:35:02 -0700, "
wrote:

how can you tell the difference between a null modem cable and a
serial cable?

i've heard that a null modem cable is for connecting 2 computers
together. So I guess a serial cable is just for connecting a computer
to a device. ?

Is it like a straight through vs a crossover ?

Yes.
A serial cable creates a straight connection.
Typically between a DTE (like a PC) and a DCD (modem).

A cross-cable allows you to make a connection between two similar
devices (like 2 PCs).
It does that by connecting Sender to Receiver pins and vise
versa.
Details: www.hardwarebook.info
There, you can also see that a straight cable is always the same
cable while a crossover may come in many forms and shapes.
Some crossed cables may not work in a given situation!

--
Kind regards,
Gerard Bok