• Cable Lacing

    From poindexter FORTRAN@21:4/122 to All on Tue Mar 7 07:09:00 2023
    I started my career in telecom, back when phone systems were a big
    thing, e-commerce wasn't a thing, and mail order retail was big
    business.

    Imagine a time when every desk had a phone on it, fax machines were the
    primary source of getting information in printed form from place to
    place, and your retail company made most of its money via phone orders.

    One of my early gigs was at a building that used to be a switching
    office for Pacific Bell in the 1960s. The upper floor was an open plan,
    with a bathroom that had 8 stalls, no stand-up urinals, and a
    waist-to-ceiling mirror that covered one wall and wrapped around another
    wall. There was a 60's looking poster cautioning women against using
    hair spray while smoking a cigarette in the bathroom. This was the
    bathroom the female operators used.

    Downstairs was a maze of 2-post racks tied together with ladder racking
    above. There was one bathroom with a cracked sink, single toilet, and
    vintage hand soap - this was the bathroom the techs used.

    As we moved into the bottom floor Bell took out some of their cable infrastructure, but left a portion of it running. It was a cabling work
    of art. 2-post racks containing binding posts for circuit terminations,
    large surge isolators meant to protect from lightning strikes, and the
    neatest dressed 66 blocks with cross-connect wire I'd ever seen - each
    one with an almost identical service loop/bend in it.

    It was so well wired that I could order a new phone line, and my tech
    would call me the next day and say she'd left the line on rack X,
    binding post Y - did I need her to come over and wire it up to my panel?

    What struck me was the lack of velcro or zip ties anywhere. The entire
    cable plant was dressed neatly with waxed string, lacing the cables
    together. It turned out that Bellcore had a publication documenting a
    rigid standard for cable lacing that all the Bells followed.

    For those interested, check out:

    https://en.wikipedia.org/wiki/Cable_lacing




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  • From Oldbieone@21:4/122 to poindexter FORTRAN on Wed Mar 8 13:49:11 2023
    Re: Cable Lacing
    By: poindexter FORTRAN to All on Tue Mar 07 2023 07:09 am

    What struck me was the lack of velcro or zip ties anywhere. The entire
    cable plant was dressed neatly with waxed string, lacing the cables together. It turned out that Bellcore had a publication documenting a
    rigid standard for cable lacing that all the Bells followed.

    For those interested, check out:

    https://en.wikipedia.org/wiki/Cable_lacing

    Love reading about all the things that happened behind-the-scenes and the forgotten artforms that surrounded vintage electronics and electromechanical systems!
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  • From Zip@21:1/202 to poindexter FORTRAN on Thu Mar 9 19:20:40 2023
    Hello poindexter FORTRAN!

    On 07 Mar 2023, poindexter FORTRAN said the following...
    What struck me was the lack of velcro or zip ties anywhere. The entire cable plant was dressed neatly with waxed string, lacing the cables together. It turned out that Bellcore had a publication documenting a rigid standard for cable lacing that all the Bells followed.

    This is very cool!

    I'm bad at knots, so using zip ties here. =)

    Best regards
    Zip <-- Hah!

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