You have a rowboat that'll carry you and any one of the three and you've got to get grain, chicken and fox all across a body of water without ever leaving a fox/chicken or chicken/grain pair alone on either side. I think it was XKCD (Randall Munroe) who pointed out the real solution: Leave the fox. Foxes aren't domestic animals.*
Of course, he is brilliant.
Me, what I have is perspiration. I also had to get four 250 foot runs of not-very-flexible LMR-400 coax from the roof of an oversized two-story building through a conduit run that included not less than nine 90-degree bends, four of them in very close pairs, including one into a vertical. open-fronted wire duct above a suspended ceiling. The conduit wasn't big enough to run them one at a time, so there was a fat bundle to fight. --Oh, and two of the 90s are above the ceiling, between a wall and a lighting fixture, requiring vertical-limbo skills to reach.
The usual way to do this, assuming you are insane or desperate enough to make the attempt, it to station a person at each end and every 90 or close pair of 90s, and everyone helps the thick, awkward mess along. It works well.
That would call for at least six and preferably seven people. I had four, two of whom had better things to do -- oh, and about 25 feet of the run wasn't in conduit, but through a very "busy" raised floor under an in-use control center.
We did it, mostly by me bouncing between three of the worst corners (yes, including the two above the ceiling) and the application of plenty of brute force and utter guile on everyone's part, but it wasn't quick and it certainly wasn't easy.
I won't know if we "killed" any of the cable runs until later today An overlooked kink will destroy the stuff worse than a network cable. Wish me luck -- I'll be connectorizing the bottom ends and applying a Time-Domain Reflectometer. What's a TDR? Think of it as "radar on a rope:" it bounces signals off the far end and looks to see how well they make the round trip, with a presentation similar to a radar A-scope. I hope not to see any bogies.
* Leave the fox and grain, take the chicken across. Leave the chicken, go back and get the grain. Goodbye, fox! Good luck!
T. R. MCELROY'S STREAMLINED TELEGRAPH KEYS
1 year ago