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From: "Carlos E.R." <robin_listas@es.invalid>
Newsgroups: comp.os.linux.advocacy,comp.os.linux.misc
Subject: Re: Rewriting SSA. Is This A Chance For GNU/Linux?
Date: Sat, 5 Apr 2025 22:10:57 +0200
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On 2025-04-05 21:20, rbowman wrote:
> On Sat, 5 Apr 2025 11:41:11 +0100, The Natural Philosopher wrote:
> 
>> Project I worked on was undersea repeater for optical cables.
>> Probably the worst organised and specified project ever, but that's a by
>> the by. They said 'you are lucky we are allowed to use a silicon
>> processor, up to 5 years ago we had to use germanium' 'Why?' Because
>> that was the only technology more than 15 years old that could be
>> guaranteed to last the 15 years'
> 
> When we built sequential runway lighting controllers the wire harnesses
> had to be laced because the nylon ties used in industry hadn't had a
> couple of decades of use.
> 
> https://en.wikipedia.org/wiki/Cable_lacing
> 
> Luckily all our techs were women, most of whom had knitting or macrame
> skills. The heart of the system was an electro-mechanical stepper that was
> also mostly obsolete in industry.
> 
> The SSA probably has people saying 'Rust? Well maybe after it's proven
> itself for 60 years like COBOL.'

I prefer cable lacing to the nylon ties.

I have seen nylon ties degrade and break, specially under the sun.

Nylon ties are often tied very tight, so tight that they can damage the 
cable insulation and perhaps the outer conductors.

Nylon ties cut your hand when you push it trough the mesh of cables 
trying to get one.

Maybe the #2 and #3 are due to not using a certified tool for tying 
them, but I have never seen such a tool. It was mentioned, but nobody 
had one.


Oh, I have seen steel ties, Chinese made.

-- 
Cheers, Carlos.