Recent content by kd5mdk

  1. K

    Static or DHCP for IP cams?

    In fact you can likely export the existing reservation list, edit the values to be whatever the new subnets are, and import the revised list with MAC addresses all filled out to your new DHCP server so that everything you wanted to have a reservation will with minimum effort. :D
  2. K

    Static or DHCP for IP cams?

    This is what we do too. Also, in my unusual use case it is common for camera to be dynamically installed at the last minute and we haven't pre-reserved IPs for all of the cameras in inventory so it ends up being "Plug it in, look at the switch to see what IP it picked up, and then decide if I...
  3. K

    Do you use a patch panel?

    This is the part many people skip. A lot of my thinking on this was driven by Selecting the Correct RJ45 Connector | trueCABLE which I do note is talking about high bandwidth connections. I really like their writing style, although it is focused on a much more performant usage of ethernet than...
  4. K

    Temporary POE connection.

    Ok, so this makes a lot more sense. Somehow in the original post I missed that it was a 1:2 PoE splitter instead of a simple injector. So I was trying to figure out how two cameras were going to be powered off of a single injector. Sorry about all that. Does the uplink cable come into the box...
  5. K

    Temporary POE connection.

    What role is the box fulfilling?
  6. K

    Do you use a patch panel?

    One thing to keep in mind is that if you’re going to be poking around where your cables are, having some sort of strain relief is important so you don’t accidentally make a good connection intermittent. Or just pull it off. :). So if this is a switch where some cables are permanently mounted and...
  7. K

    Need help choosing a UPS

    APC, Vertiv/Liebert and other Tier 1 UPS manufacturers already offer LiFePO4 options (at a significant premium) so the chemistry itself is known to be safe. It’s always possible that a careless manufacturer makes a design that is bad but that is also a risk with SLA. One thing to look out for...
  8. K

    Remote (off-network) connection to my Hikvision NVR...public IP is CGNAT IP

    Tallscale is amazing. Just absolute magic.
  9. K

    Optical signal transmission

    I would say the likelihood is 95% there is another connection between those two endpoints and you are causing a loop. (Or the fiber is making a U turn and you’re connecting both ends of it to the same switch. I’ve done that with copper going through a wall.) Especially because you said that the...
  10. K

    Temporary POE connection.

    How are you sealing the mains power input to the PoE injector? Is the box purely an indoor item that is a convenience for holding the injector and a permanent cable receptacle vs having them floating free? In any event, there are connectors like you need with built in cables for the inside the...
  11. K

    Is my neighbor interfering with my cameras?

    Is your phone the only source to view the camera footage?
  12. K

    Doesn't this panel create more problems down the line?

    If you're running bulk wire, you'll need to terminate each end with something. Punching down is in my experience a bit harder to get right than crimping a plug. But not so much harder it's worth crimping your own cables to use a passthrough jack. IT Professionals usually hire an outside...
  13. K

    Zosi camera - how to access

    Interesting, but not necessarily nefarious. WeChat in China is beyond WhatsApp in Europe or email+Amazon in the US. Default customer support / payment / communications method.
  14. K

    New to the site, big vision, many questions..

    What climate are you in? Is your attic finished? I’d be cautious about putting putting a POE switch in an unfinished attic for both overheating and dust reasons. What is your budget? Are you planning to do all the work yourself or have someone do parts for you?
  15. K

    Dahua NVR HTTPS certificate is not valid

    Certificates have expiration dates, did you check that? Is this in Windows or Chrome? Chrome has its own certificate trust store.
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