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serial cable color coding — Parallax Forums

serial cable color coding

ArchiverArchiver Posts: 46,084
edited 2003-09-16 01:05 in General Discussion
Would anyone happen to know of a resource that lists the standard serial
cable color coding?

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Comments

  • ArchiverArchiver Posts: 46,084
    edited 2003-09-14 02:18
    Yea, It's call an OHM METER. Would that be CHINA STANDARD or KOREA STANDARD
    or JAPAN STANDARD or CANADIAN STANDARD or USA STANDARD ?
    Original Message
    From: Christian Wentz [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=L0I3_Jf7AcQfj4D4j4sIbYzbSWGJB8AaWYv5tPnUNKdeKvZPKjTtaP66QPl1ik5Pgdpx0qhSgQIaSgZ_h5dx]cwentz86@h...[/url
    Sent: Saturday, September 13, 2003 7:19 PM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] serial cable color coding


    Would anyone happen to know of a resource that lists the standard serial
    cable color coding?

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  • ArchiverArchiver Posts: 46,084
    edited 2003-09-14 02:27
    I don't think there is a standard, but an old tech who used to work for
    me would do them (at least the first 10) in resistor color code, black,
    brown, red, etc.

    Al Williams
    AWC
    * Control 8 servos at once: http://www.al-williams.com/pak8.htm


    >
    Original Message
    > From: Christian Wentz [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=OHdg7x65FVcKQGLkB0l9AZZKO_RSk4coOG9xSWngRk1SX3knG8tKg8Yc1P7p8w3uipSwSD0scOhDBgNv]cwentz86@h...[/url
    > Sent: Saturday, September 13, 2003 6:19 PM
    > To: basicstamps@yahoogroups.com
    > Subject: [noparse][[/noparse]basicstamps] serial cable color coding
    >
    >
    > Would anyone happen to know of a resource that lists the
    > standard serial
    > cable color coding?
    >
    > _________________________________________________________________
    > Send and receive larger attachments with Hotmail Extra Storage.
    > http://join.msn.com/?PAGE=features/es
    >
    >
    > To UNSUBSCRIBE, just send mail to:
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    > from the same email address that you subscribed. Text in the
    > Subject and Body of the message will be ignored.
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    >
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    >
  • ArchiverArchiver Posts: 46,084
    edited 2003-09-14 02:28
    There is no general standard for wire color on PC cabling, with the
    exception of marking pin 1 on ribbon cables, and the color of power
    supply and fan wiring. Everything else is probably gonna be factory or
    manufacturer specific.

    What Jim is trying to say is that because everyone has a different color
    code, you need to use an ohm meter or continuity tester to figure out
    what color wire goes to which pin on the cable that you have.


    > Yea, It's call an OHM METER. Would that be CHINA STANDARD or KOREA STANDARD
    > or JAPAN STANDARD or CANADIAN STANDARD or USA STANDARD ?

    > Would anyone happen to know of a resource that lists the standard serial
    > cable color coding?
  • ArchiverArchiver Posts: 46,084
    edited 2003-09-14 02:34
    It may depend on if they use the metric or US color code as well? <grin>
    And don't get me started on the metric versus US electricity.

    > I don't think there is a standard, but an old tech who used to work for
    > me would do them (at least the first 10) in resistor color code, black,
    > brown, red, etc.


    > > Would anyone happen to know of a resource that lists the
    > > standard serial
    > > cable color coding?
  • ArchiverArchiver Posts: 46,084
    edited 2003-09-14 04:15
    In a message dated 9/13/2003 6:27:55 PM Pacific Daylight Time,
    alw@a... writes:
    I don't think there is a standard, but an old tech who used to work for
    me would do them (at least the first 10) in resistor color code, black,
    brown, red, etc.

    Al Williams
    AWC
    +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

    I do the same, and think it is a good idea. If you are consistent with this
    method, at least one knows number 1 through 10


    [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2003-09-14 05:03
    I do not think the color coding of cables is arbitrarily.
    If you look a telephoneman splicing hundreds of wires , they follow
    a color code scheme.
    Perhaps there is an ANSI standard (they have standards for almost
    everythinng).
  • ArchiverArchiver Posts: 46,084
    edited 2003-09-14 16:23
    If you are a telephone man, with a 50-pair telephone
    cable, you'd better have a standard for what pair
    of wires goes where. If you're installing a
    50 foot 8-wire cable between a PC and a Modem, you have
    a lot more lattitude.

    If you are installing an "RS-232" "Standard" cable
    (ansi standard RS-232, RS-232b, RS-232c) well:
    You could install a DB25 with all pins connected,
    all pins defined -- but I don't think they spec
    the color.

    You could install a DB25 with only the common 8
    lines -- RX,TX, CTS,RTS, DCD,DTR,DTS, and Ground.
    Oops, forgot 'RI' (ring) used by the PC as IRQ input.

    Or you could do DB9. Or you could do RJ45 (like
    DEC and Stallion did). Or you could do 'three-wire'
    (TX, RX and Ground).

    The point is: the RS-232 'Standard' came out so
    early that it's evolved quite a lot, and been
    used in MANY form factors. It's amazing
    that it's as portable, and still works, as it is.
    There IS a specification, but I really don't think
    it calls out wire colors.


    --- In basicstamps@yahoogroups.com, "Albert Catano"
    <acatano2002@y...> wrote:
    > I do not think the color coding of cables is arbitrarily.
    > If you look a telephoneman splicing hundreds of wires , they
    follow
    > a color code scheme.
    > Perhaps there is an ANSI standard (they have standards for almost
    > everythinng).
  • ArchiverArchiver Posts: 46,084
    edited 2003-09-14 18:02
    Well I would think there would be a standard ! if nothing more than just pin
    to color standard ! But I can't find anything. I have used wire color to pin
    numbers, but can't find the chart, and it wasn't specific to rs232.

    Larry Gaminde


    Original Message
    From: "Bill Boyer" <daweasel@s...>
    To: "Basic Stamp List" <basicstamps@yahoogroups.com>
    Sent: September 13, 2003 6:28 PM
    Subject: RE: [noparse][[/noparse]basicstamps] serial cable color coding


    > There is no general standard for wire color on PC cabling, with the
    > exception of marking pin 1 on ribbon cables, and the color of power
    > supply and fan wiring. Everything else is probably gonna be factory or
    > manufacturer specific.
    >
    > What Jim is trying to say is that because everyone has a different color
    > code, you need to use an ohm meter or continuity tester to figure out
    > what color wire goes to which pin on the cable that you have.
    >
    >
    > > Yea, It's call an OHM METER. Would that be CHINA STANDARD or KOREA
    STANDARD
    > > or JAPAN STANDARD or CANADIAN STANDARD or USA STANDARD ?
    >
    > > Would anyone happen to know of a resource that lists the standard serial
    > > cable color coding?
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2003-09-15 02:00
    Now I lay me down to sleep
    With a roll of cable at my feet
    If I should die before I wake
    White, Blue, Orange, Green, Brown, Slate.
    Original Message
    From: "Allan Lane" <allan.lane@h...>
    To: <basicstamps@yahoogroups.com>
    Sent: Sunday, September 14, 2003 8:23 AM
    Subject: [noparse][[/noparse]basicstamps] Re: serial cable color coding


    > If you are a telephone man, with a 50-pair telephone
    > cable, you'd better have a standard for what pair
    > of wires goes where. If you're installing a
    > 50 foot 8-wire cable between a PC and a Modem, you have
    > a lot more lattitude.
    >
    > If you are installing an "RS-232" "Standard" cable
    > (ansi standard RS-232, RS-232b, RS-232c) well:
    > You could install a DB25 with all pins connected,
    > all pins defined -- but I don't think they spec
    > the color.
    >
    > You could install a DB25 with only the common 8
    > lines -- RX,TX, CTS,RTS, DCD,DTR,DTS, and Ground.
    > Oops, forgot 'RI' (ring) used by the PC as IRQ input.
    >
    > Or you could do DB9. Or you could do RJ45 (like
    > DEC and Stallion did). Or you could do 'three-wire'
    > (TX, RX and Ground).
    >
    > The point is: the RS-232 'Standard' came out so
    > early that it's evolved quite a lot, and been
    > used in MANY form factors. It's amazing
    > that it's as portable, and still works, as it is.
    > There IS a specification, but I really don't think
    > it calls out wire colors.
    >
    >
    > --- In basicstamps@yahoogroups.com, "Albert Catano"
    > <acatano2002@y...> wrote:
    > > I do not think the color coding of cables is arbitrarily.
    > > If you look a telephoneman splicing hundreds of wires , they
    > follow
    > > a color code scheme.
    > > Perhaps there is an ANSI standard (they have standards for almost
    > > everythinng).
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2003-09-15 02:01
    As Allan and others have said, there is not a standard for wire colors.
    Each factory lot will use the same color sequence, but different
    factories/lots will vary. We use a M-F DB9 cable for a commercial
    device, by cutting the cable at one end, discarding the connector, and
    wiring the cable to our circuits, using a few hundred per year. We try
    to buy from the same place, but periodically check the colors and pins
    to avoid circuit disasters. We like and use black cables from Jameco,
    to match our black instrument cases.

    Dennis
    Original Message
    From: Allan Lane [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=FmrytL7QLfgUs1sJp5oYCdZLUDbW_U7ffyheg03TSRnZ2KqzzdSfMnye_6XC6f75-KcH1pVU3QL_Slq5vkilbVTR9IqjNw]allan.lane@h...[/url
    Sent: Sunday, September 14, 2003 8:24 AM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] Re: serial cable color coding


    If you are a telephone man, with a 50-pair telephone
    cable, you'd better have a standard for what pair
    of wires goes where. If you're installing a
    50 foot 8-wire cable between a PC and a Modem, you have
    a lot more lattitude.

    If you are installing an "RS-232" "Standard" cable
    (ansi standard RS-232, RS-232b, RS-232c) well:
    You could install a DB25 with all pins connected,
    all pins defined -- but I don't think they spec
    the color.

    You could install a DB25 with only the common 8
    lines -- RX,TX, CTS,RTS, DCD,DTR,DTS, and Ground.
    Oops, forgot 'RI' (ring) used by the PC as IRQ input.

    Or you could do DB9. Or you could do RJ45 (like
    DEC and Stallion did). Or you could do 'three-wire'
    (TX, RX and Ground).

    The point is: the RS-232 'Standard' came out so
    early that it's evolved quite a lot, and been
    used in MANY form factors. It's amazing
    that it's as portable, and still works, as it is.
    There IS a specification, but I really don't think
    it calls out wire colors.


    --- In basicstamps@yahoogroups.com, "Albert Catano"
    <acatano2002@y...> wrote:
    > I do not think the color coding of cables is arbitrarily.
    > If you look a telephoneman splicing hundreds of wires , they
    follow
    > a color code scheme.
    > Perhaps there is an ANSI standard (they have standards for almost
    > everythinng).


    To UNSUBSCRIBE, just send mail to:
    basicstamps-unsubscribe@yahoogroups.com
    from the same email address that you subscribed. Text in the Subject
    and Body of the message will be ignored.


    Your use of Yahoo! Groups is subject to
    http://docs.yahoo.com/info/terms/
  • ArchiverArchiver Posts: 46,084
    edited 2003-09-15 02:31
    Speaking of that, does anyone still make a cable with removeable shells?
    Most everything I see has molded ends, which means you have to chop off
    one end and put on a fresh connector if you need to make a custom cable.


    > As Allan and others have said, there is not a standard for wire colors.
    > Each factory lot will use the same color sequence, but different
    > factories/lots will vary. We use a M-F DB9 cable for a commercial
    > device, by cutting the cable at one end, discarding the connector, and
    > wiring the cable to our circuits, using a few hundred per year. We try
    > to buy from the same place, but periodically check the colors and pins
    > to avoid circuit disasters. We like and use black cables from Jameco,
    > to match our black instrument cases.
  • ArchiverArchiver Posts: 46,084
    edited 2003-09-15 16:08
    Bad -- Black -- 0
    boys -- Brown -- 1
    race -- Red -- 2
    our -- Orange -- 3
    young -- Yellow -- 4
    girls -- Green -- 5
    behind -- Blue -- 6
    victory -- Violet -- 7
    garden -- Gray -- 8
    walls -- White -- 9

    Above is a non-bawdy version of the resistor
    numbering color sequence, which DOES NOT apply
    (necessarily) to RS-232. ("Bad boys rape our
    young girls, but violet gives willingly" is
    the 'PG-13' version)

    Note that CAT-5 cable has Orange/Orange-Stripe,
    Blue/Blue-Stripe, Green/Green-Stripe,
    Brown/Brown-Stripe. This CAN be used for
    RS-232 also.

    --- In basicstamps@yahoogroups.com, "Stephen H Chapman"
    <chapman@t...> wrote:
    > Now I lay me down to sleep
    > With a roll of cable at my feet
    > If I should die before I wake
    > White, Blue, Orange, Green, Brown, Slate.
    >
    >
    Original Message
    > From: "Allan Lane" <allan.lane@h...>
    > To: <basicstamps@yahoogroups.com>
    > Sent: Sunday, September 14, 2003 8:23 AM
    > Subject: [noparse][[/noparse]basicstamps] Re: serial cable color coding
    >
    >
    > > If you are a telephone man, with a 50-pair telephone
    > > cable, you'd better have a standard for what pair
    > > of wires goes where. If you're installing a
    > > 50 foot 8-wire cable between a PC and a Modem, you have
    > > a lot more lattitude.
    > >
    > > If you are installing an "RS-232" "Standard" cable
    > > (ansi standard RS-232, RS-232b, RS-232c) well:
    > > You could install a DB25 with all pins connected,
    > > all pins defined -- but I don't think they spec
    > > the color.
    > >
    > > You could install a DB25 with only the common 8
    > > lines -- RX,TX, CTS,RTS, DCD,DTR,DTS, and Ground.
    > > Oops, forgot 'RI' (ring) used by the PC as IRQ input.
    > >
    > > Or you could do DB9. Or you could do RJ45 (like
    > > DEC and Stallion did). Or you could do 'three-wire'
    > > (TX, RX and Ground).
    > >
    > > The point is: the RS-232 'Standard' came out so
    > > early that it's evolved quite a lot, and been
    > > used in MANY form factors. It's amazing
    > > that it's as portable, and still works, as it is.
    > > There IS a specification, but I really don't think
    > > it calls out wire colors.
    > >
    > >
    > > --- In basicstamps@yahoogroups.com, "Albert Catano"
    > > <acatano2002@y...> wrote:
    > > > I do not think the color coding of cables is arbitrarily.
    > > > If you look a telephoneman splicing hundreds of wires , they
    > > follow
    > > > a color code scheme.
    > > > Perhaps there is an ANSI standard (they have standards for
    almost
    > > > everythinng).
    > >
    > >
    > > To UNSUBSCRIBE, just send mail to:
    > > basicstamps-unsubscribe@yahoogroups.com
    > > from the same email address that you subscribed. Text in the
    Subject and
    > Body of the message will be ignored.
    > >
    > >
    > > Your use of Yahoo! Groups is subject to
    http://docs.yahoo.com/info/terms/
    > >
    > >
    > >
    > >
  • ArchiverArchiver Posts: 46,084
    edited 2003-09-15 18:31
    I collect these.

    There are many variations on the Bad boys... I have also heard Bad Beer
    Rots Our Young Guts but Vodka Goes Well.

    Bad Betty runs over your garden but Violet Gray won't

    Billy Brown Revives On Your Gin, But Values Good Whisky

    Better Be Ready, Or Your Great Big Venture Goes West

    Black Beetles Running On Your Garden Bring Very Good Weather

    The one about batman is unrepeatable but the clean version is
    Batman Bests Robin On Yonder Gotham Bridge; Very Good, Will Get
    Superman Next

    Al Williams
    AWC
    * Add floating point math to your Stamp program:
    http://www.al-williams.com/pak1.htm


    >
    Original Message
    > From: Allan Lane [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=XlnSmZBlTCLZtiTaoYfCzkIkPVPn2BL1yCuNR1emK2ZhDrom9vbdEt2mE_m4U8SvbYxvozGLG9lgiLn_l1-d6wAHWHE]allan.lane@h...[/url
    > Sent: Monday, September 15, 2003 10:09 AM
    > To: basicstamps@yahoogroups.com
    > Subject: [noparse][[/noparse]basicstamps] Re: serial cable color coding
    >
    >
    > Bad -- Black -- 0
    > boys -- Brown -- 1
    > race -- Red -- 2
    > our -- Orange -- 3
    > young -- Yellow -- 4
    > girls -- Green -- 5
    > behind -- Blue -- 6
    > victory -- Violet -- 7
    > garden -- Gray -- 8
    > walls -- White -- 9
    >
    > Above is a non-bawdy version of the resistor
    > numbering color sequence, which DOES NOT apply
    > (necessarily) to RS-232. ("Bad boys rape our
    > young girls, but violet gives willingly" is
    > the 'PG-13' version)
    >
    > Note that CAT-5 cable has Orange/Orange-Stripe,
    > Blue/Blue-Stripe, Green/Green-Stripe,
    > Brown/Brown-Stripe. This CAN be used for
    > RS-232 also.
    >
    > --- In basicstamps@yahoogroups.com, "Stephen H Chapman"
    > <chapman@t...> wrote:
    > > Now I lay me down to sleep
    > > With a roll of cable at my feet
    > > If I should die before I wake
    > > White, Blue, Orange, Green, Brown, Slate.
    > >
    > >
    Original Message
    > > From: "Allan Lane" <allan.lane@h...>
    > > To: <basicstamps@yahoogroups.com>
    > > Sent: Sunday, September 14, 2003 8:23 AM
    > > Subject: [noparse][[/noparse]basicstamps] Re: serial cable color coding
    > >
    > >
    > > > If you are a telephone man, with a 50-pair telephone
    > > > cable, you'd better have a standard for what pair
    > > > of wires goes where. If you're installing a
    > > > 50 foot 8-wire cable between a PC and a Modem, you have
    > > > a lot more lattitude.
    > > >
    > > > If you are installing an "RS-232" "Standard" cable
    > > > (ansi standard RS-232, RS-232b, RS-232c) well:
    > > > You could install a DB25 with all pins connected,
    > > > all pins defined -- but I don't think they spec
    > > > the color.
    > > >
    > > > You could install a DB25 with only the common 8
    > > > lines -- RX,TX, CTS,RTS, DCD,DTR,DTS, and Ground.
    > > > Oops, forgot 'RI' (ring) used by the PC as IRQ input.
    > > >
    > > > Or you could do DB9. Or you could do RJ45 (like
    > > > DEC and Stallion did). Or you could do 'three-wire'
    > > > (TX, RX and Ground).
    > > >
    > > > The point is: the RS-232 'Standard' came out so
    > > > early that it's evolved quite a lot, and been
    > > > used in MANY form factors. It's amazing
    > > > that it's as portable, and still works, as it is.
    > > > There IS a specification, but I really don't think
    > > > it calls out wire colors.
    > > >
    > > >
    > > > --- In basicstamps@yahoogroups.com, "Albert Catano"
    > > > <acatano2002@y...> wrote:
    > > > > I do not think the color coding of cables is
    > arbitrarily. If you
    > > > > look a telephoneman splicing hundreds of wires , they
    > > > follow
    > > > > a color code scheme.
    > > > > Perhaps there is an ANSI standard (they have standards for
    > almost
    > > > > everythinng).
    > > >
    > > >
    > > > To UNSUBSCRIBE, just send mail to:
    > > > basicstamps-unsubscribe@yahoogroups.com
    > > > from the same email address that you subscribed. Text in the
    > Subject and
    > > Body of the message will be ignored.
    > > >
    > > >
    > > > Your use of Yahoo! Groups is subject to
    > http://docs.yahoo.com/info/terms/
    > > >
    > > >
    > > >
    > > >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the
    > Subject and Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to
    http://docs.yahoo.com/info/terms/
  • ArchiverArchiver Posts: 46,084
    edited 2003-09-15 18:42
    Could you send me the R or X versions off list.

    Larry Gaminde


    Original Message
    From: "Al Williams" <alw@a...>
    To: <basicstamps@yahoogroups.com>
    Sent: September 15, 2003 10:31 AM
    Subject: RE: [noparse][[/noparse]basicstamps] Re: serial cable color coding


    > I collect these.
    >
    > There are many variations on the Bad boys... I have also heard Bad Beer
    > Rots Our Young Guts but Vodka Goes Well.
    >
    > Bad Betty runs over your garden but Violet Gray won't
    >
    > Billy Brown Revives On Your Gin, But Values Good Whisky
    >
    > Better Be Ready, Or Your Great Big Venture Goes West
    >
    > Black Beetles Running On Your Garden Bring Very Good Weather
    >
    > The one about batman is unrepeatable but the clean version is
    > Batman Bests Robin On Yonder Gotham Bridge; Very Good, Will Get
    > Superman Next
    >
    > Al Williams
    > AWC
    > * Add floating point math to your Stamp program:
    > http://www.al-williams.com/pak1.htm
    >
    >
    > >
    Original Message
    > > From: Allan Lane [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=NOcWQOhv4Mxv5xa3_zLVDHdyta_dqLekdkipYqrlFZGVT44sauoKZSKMybl9gZzTb-x2opcS6f3aej9mz5N3jA9Q]allan.lane@h...[/url
    > > Sent: Monday, September 15, 2003 10:09 AM
    > > To: basicstamps@yahoogroups.com
    > > Subject: [noparse][[/noparse]basicstamps] Re: serial cable color coding
    > >
    > >
    > > Bad -- Black -- 0
    > > boys -- Brown -- 1
    > > race -- Red -- 2
    > > our -- Orange -- 3
    > > young -- Yellow -- 4
    > > girls -- Green -- 5
    > > behind -- Blue -- 6
    > > victory -- Violet -- 7
    > > garden -- Gray -- 8
    > > walls -- White -- 9
    > >
    > > Above is a non-bawdy version of the resistor
    > > numbering color sequence, which DOES NOT apply
    > > (necessarily) to RS-232. ("Bad boys rape our
    > > young girls, but violet gives willingly" is
    > > the 'PG-13' version)
    > >
    > > Note that CAT-5 cable has Orange/Orange-Stripe,
    > > Blue/Blue-Stripe, Green/Green-Stripe,
    > > Brown/Brown-Stripe. This CAN be used for
    > > RS-232 also.
    > >
    > > --- In basicstamps@yahoogroups.com, "Stephen H Chapman"
    > > <chapman@t...> wrote:
    > > > Now I lay me down to sleep
    > > > With a roll of cable at my feet
    > > > If I should die before I wake
    > > > White, Blue, Orange, Green, Brown, Slate.
    > > >
    > > >
    Original Message
    > > > From: "Allan Lane" <allan.lane@h...>
    > > > To: <basicstamps@yahoogroups.com>
    > > > Sent: Sunday, September 14, 2003 8:23 AM
    > > > Subject: [noparse][[/noparse]basicstamps] Re: serial cable color coding
    > > >
    > > >
    > > > > If you are a telephone man, with a 50-pair telephone
    > > > > cable, you'd better have a standard for what pair
    > > > > of wires goes where. If you're installing a
    > > > > 50 foot 8-wire cable between a PC and a Modem, you have
    > > > > a lot more lattitude.
    > > > >
    > > > > If you are installing an "RS-232" "Standard" cable
    > > > > (ansi standard RS-232, RS-232b, RS-232c) well:
    > > > > You could install a DB25 with all pins connected,
    > > > > all pins defined -- but I don't think they spec
    > > > > the color.
    > > > >
    > > > > You could install a DB25 with only the common 8
    > > > > lines -- RX,TX, CTS,RTS, DCD,DTR,DTS, and Ground.
    > > > > Oops, forgot 'RI' (ring) used by the PC as IRQ input.
    > > > >
    > > > > Or you could do DB9. Or you could do RJ45 (like
    > > > > DEC and Stallion did). Or you could do 'three-wire'
    > > > > (TX, RX and Ground).
    > > > >
    > > > > The point is: the RS-232 'Standard' came out so
    > > > > early that it's evolved quite a lot, and been
    > > > > used in MANY form factors. It's amazing
    > > > > that it's as portable, and still works, as it is.
    > > > > There IS a specification, but I really don't think
    > > > > it calls out wire colors.
    > > > >
    > > > >
    > > > > --- In basicstamps@yahoogroups.com, "Albert Catano"
    > > > > <acatano2002@y...> wrote:
    > > > > > I do not think the color coding of cables is
    > > arbitrarily. If you
    > > > > > look a telephoneman splicing hundreds of wires , they
    > > > > follow
    > > > > > a color code scheme.
    > > > > > Perhaps there is an ANSI standard (they have standards for
    > > almost
    > > > > > everythinng).
    > > > >
    > > > >
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  • ArchiverArchiver Posts: 46,084
    edited 2003-09-16 01:05
    Just remember, B is blue, while black is K on alot of diagrams.


    > I collect these.
    >
    > There are many variations on the Bad boys... I have also heard Bad Beer
    > Rots Our Young Guts but Vodka Goes Well.
    >
    > Bad Betty runs over your garden but Violet Gray won't
    >
    > Billy Brown Revives On Your Gin, But Values Good Whisky
    >
    > Better Be Ready, Or Your Great Big Venture Goes West
    >
    > Black Beetles Running On Your Garden Bring Very Good Weather
    >
    > The one about batman is unrepeatable but the clean version is
    > Batman Bests Robin On Yonder Gotham Bridge; Very Good, Will Get
    > Superman Next
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