Quick and easy explanation of the RS232 cables used with most digital receivers.
serial cable: The ends are RS232 9 pin. It's the same cable you might use on a thermal
printer for UPS, FedEx, DHL, etc. It's a straight through cable. Although it is a 9 pin cable the only connections required are:
pin 2 to pin 2
pin 3 to pin 3
pin 5 to pin 5
null modem cable: Sometimes called a twisted pair cable. The ends are RS232 9 pin.
Although it is a 9 pin cable the only connections required are:
pin 2 to pin 3
pin 3 to pin 2
pin 5 to pin 5
Now that you know the wiring configuration, don't
forget to order the proper ends. These cables come as female to
female, female to male, and male to male.
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Male RS232
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Female
RS232
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I hope this will clear up any confusion and help you
in purchasing the correct cable. RS232 cables are available from your
DMS International dealer. We supply a high quality cable with molded
ends. If you have any problem finding these cables you are welcome to
send me a email and I'll point you to the dealers that carry these.
http://www.dmsiusa.com/sales.htm |