Love the time they are taking to make sure it is level. We had Emerson come in to install our Liebert UPS systems and they messed up on 2 Battery units next to the PDU and we cannot open the doors..
Silver ones are 3750 POE editions, however it's hard to tell with the image if they are 3750G editions or not but the Green ones are 3560 non POE 100mb switches.
That's the most strangest thing I've ever heard in my life...I do it all the time...Belden CDT 2 port jacks when you don't have a coupler, works wonders...or even a cross connect...
Haha they would never sign off on your electrical/occupancy permit here in Calgary...if the contractor did that. I hope they run that drainage pipe out of the room..I agree with Red Squirrel, get a float switch installed asap.. :)