To be clear, you said
The first option has a cable length of 1 mile max
But the bullet point you refer to stated the opposite:
Handles cable runs over a mile
Which needs clarification for sure. I found this forum exchange between an engineer from Justaddpower and a user.
I'd like to share a couple things when it comes to using Just Add Power over long distance.
1) The official "supported" distance for CAT5E is 330ft (100M) between network points. If you put an extra baby switch in the middle (a dirt cheap 4 port GB switch for under $30 will work), you can easily go 660ft. Add another baby switch, and you are up to 990ft from the main switch to the display.
2) Going through fiber to expand the network is also supported. I'm personally aware of installations over fiber that have exceeded 6 miles from the HDMI source to the target HDMI display using our devices.
3) The longest distance install I've encountered was over 20 miles using some pretty sophisticated network extenders.
4) We have had dealers call to report that they were able to use a single CAT5e cable over 500ft long with no problem, but that's just crazy talk.
5) If you can build a working network with sufficient bandwidth, there is really no distance limitation using our products.
Which, if they really are using IP and Ethernet as they claim, is what you would expect.
I'd be *very* skeptical that they would work acceptably over a corporate LAN that includes a distant site.
I couldn't say without knowing the details of the LAN, that's why I said only for him to 'take a look'. Which seemed helpful since the prevailing wisdom at the time was
You're unlikely to find this device directly
Sorry about the link, if it just hung for a while it's because it a big pdf.