Need network (re) cabling advice

First of all, I fix computer software problems for work. And I do work on network problems also. What I don't do is any of the cable runs and physical terminations of cat5 cables. But I told a friend that I help him out on a small issue and I need some advice.

His building was struck by lighting. There was lot's of damage to the electronics and network devices. After replacing the modem, router and switch and completing the setup, the network was back up and running and all functionality was restored except for one issue.

One of the ports coming from the switch didn't seem to be hot. As it happens, that port and the cable coming out of it fed into the copy room where the Konica copier resides...so it's an important run of cable. The copier has since been replaced. When first troubleshooting the bad cable, I went to remove it from the switch and the plug basically fell off the end of the cable. So I thought this would be an easy repair. I grabbed a new plug, clipped off the end of the cable, made sure that the color sequence was correct and clamped the new plug on. Nothing.

Then I checked the outlet where the cable terminates in the copier room. The cable there is split to also accommodate a phone line in that room. I know even less about phone cabling than I do about network cabling. The color sequence is different for the copy room termination than on the switch end. I'll post a few pics of both ends and will appreciate any advice on how to resolve this problem. I wondering if it's possible that the cable itself was fired as a result of the electrical damage, OR is this simply a matter of wiring the two ends of the cable correctly.

Switch end:



Copy room end:

 

The cabling looks the same to me?

The choice of pairs is a little bizarre - usually it's solid - dash on all pairs - but it doesn't really matter so long as it's the same on both ends.

 

Looks like one of them is mirrored relative to the other?

 

That's what I was thinking but if it worked before then it's just that odd plug that makes it look reversed?

Unless the previous hardware has some advanced miscabling detection that the new one doesn't have.

 

It's hard to tell green stripe from blue stripe, but pretty much every wire is in the wrong place.
This is standard Cat5

Pairs are 1-2, 3-6, 4-5, 7-8. Ethernet occupies 1-2 & 3-6. Telephone could use either of the other pairs.
You could flip same color solid for stripe at both ends and it will still work, but each color solid-stripe is a twisted pair. If you mix up beyond reversing a pair, even if done the same at both ends, you're gonna have crosstalk because now the signal is split over two wires in separate pairs and there's no noise self-cancellation

 

It's also possible the lightning took out transmit/receiver chip at one or both ends. There are simple Cat5 cable testers that inject a signal at one end and confirm you have correct connection at the other end. If you rewire and pass this test, then the problem is a chip on a board somewhere. If the cable test fails, then you know you've got to re-terminate.