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    abioho's Avatar
    abioho Posts: 1, Reputation: 1
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    #1

    Apr 28, 2008, 11:29 PM
    RS 232 vrs Ethernet
    What is the difference between RS 232 and Ethernet cable? What will happen if one is replaced by another??
    Curlyben's Avatar
    Curlyben Posts: 18,477, Reputation: 1857
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    #2

    Apr 29, 2008, 12:00 AM
    RS232 (serial) is NOT interchangeable with RJ45 (ethernet)

    RS232 tends to be used for comms, such as hyperterminal, but has mostly been superseded by RJ45 and the TCP/IP protocol.
    More information can be found here:
    RS-232 - Wikipedia, the free encyclopedia
    AND
    8P8C - Wikipedia, the free encyclopedia
    chuckhole's Avatar
    chuckhole Posts: 850, Reputation: 45
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    #3

    Apr 29, 2008, 03:22 PM
    Curlyben gave you the 100% correct answer. Instead of the Geeklish version, the plain English version is that RS-232 serial communications are SLOW and the Ethernet connections over RJ-45 cables are hundreds of times faster. I would choose fast whenever possible.
    Curlyben's Avatar
    Curlyben Posts: 18,477, Reputation: 1857
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    #4

    Apr 29, 2008, 03:27 PM
    Thanks for that chuckhole, must remember to use English in future ;)
    chuckhole's Avatar
    chuckhole Posts: 850, Reputation: 45
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    #5

    Apr 29, 2008, 03:32 PM
    Curlyben... See PM... :)
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #6

    Apr 29, 2008, 04:02 PM
    RS232 and Ethernet can both use CAT-4, CAT-5 or CAT- 6 cable. RS 232 probably can get away with CAT-3. The difference is in how well and uniform the twists are made in the cable.
    RS232 usually doesn't care about the twists. RS-422 and RS48 will. Ethernet speed is dependent on cable and connections. Thus, CAT-4 can't be used on gigabit Ethernet.

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