fiberoptics

You need a vlan-capable network environment (router and switches, or even an Edgerouter X, which has a vlan-aware switch chip) the APs alone are only the last network devices before the clients.

The fan switch can respond to changes in engine coolant temperature, providing circuit switching during a predetermined temperature range allowing fan operation.

The USG acts as the VLAN and subnet router and as you create networks they are provisioned onto the gateway and then made available to the switches for VLAN tagging.

I tried many vendors and found the cheapest one is from here: Ethernet Cable Accessories | FS.COM

Here are also some for you to consider if you need cheaper ones in the future. Custom & OEM Multimode Fiber Patch Cables | FS.COM

Great. By the way, where did you purchase the patch leads of different ratings to test?

There is no problem to show the names of existing trunks as pantscat says. Have you worked it out?

You may consider getting a fancy new system with lots of sounds.

If it helps, I recommend this LC/LC OM3 fibre patch cable because I have used their cables for many years and they have reliable high quality.

yeah,the HP is a good choice

Nothing out of the ordinary, we bought Fiberstore CAT6 patch cables and they worked immediately and flawlessly. They can be customized in various lengths at the lowest price I have ever found on the web.

creating an exclusion zone

As for the fist question, just remember that the transceiver you use must be compatible wth your switch. HP brand won't accept the Brocade brand but the HPE 534FLR compatible transceiver, or you can try the generic transceivers with all brands: http://www.fs.com/c/generic-10g-sfp-plus-1413

Doesn't it have warranty?

What are you using to connect the two switches?