Archive for the ‘Cabling’ Category:

2021-12-21 RS-232 Sharing Box, RS-485, Poll-Select, Etc.

I had hundreds of CRT terminals around campus, connected to 16 RS-232 ports on the mainframe computer, back in the ’80s and ’90s. The protocol was Burroughs poll-select. Each of a dozen or so terminals was given its own address by dip switch. They were all running at 9600 bps over telephone lines driven by

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2020-10-21 Wiring Harnesses And Automation

I worked at a company that built automated test equipment for assembling cables and wiring harnesses. During the year I was there they sent reps to Detroit to help GM build wiring harnesses for Buicks. This was in 1980 and GM was using relays to implement the logic system to assure that the wiring harness

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2020-01-02 Coax Cable and Crimp-On Connectors

FB comment Years ago at work (community college) we had an IBM mainframe and the terminals were connected with coax cables. We also had thin Ethernet cabling. I had the proper connectors and thousand foot boxes of coax, and most importantly the proper stripping and crimping tools. I installed hundreds of coaxes, and I was

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