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  1. guykuo

    Natural Gas Generators

    Another tidbit to tuck in your head is the earthquake valve that should get installed along with the generator. We have one for the house and another for the generator. Post minor tremors, those valves may shut off the gas supply. We had one partially shut after nearby heavy earth mover...
  2. guykuo

    Natural Gas Generators

    If you can place a bit further from house, it will be quieter. Ours is OK, but one of our neighbors had his put about 30 feet away. Cost a bit more for the gas plumbing and electrical, but probably worth considering. Remember, it will run 20 minutes every two weeks to keep itself in good...
  3. guykuo

    Natural Gas Generators

    Nice, liquid cooled. We didn't have space for that size unit.
  4. guykuo

    Natural Gas Generators

    In a 240 volt household feed, there are two 120 volt legs. Thing of them like two batteries in series. Your household 120 circuits are distributed to connect with one leg or the other. 240 volt appliances straddle both legs. Well balanced power systems put about the same average load on each...
  5. guykuo

    Natural Gas Generators

    Never did measure consumption. It would vary with electrical load and we basically go on with our lives when the generators were running. With NG fuel source, there isn't the "when will the fuel run out?" monitoring concern as with a gasoline or LPG generator. Several day long outages no longer...
  6. guykuo

    Network Redesign Help

    Dual NIC is easiest way to achieve full isolation of cameras from WAN.
  7. guykuo

    Natural Gas Generators

    Not many would recognize that unit. I've had to take it apart and replace its caps, but it's still working for the few devices that are still X-10. Most are now Insteon. And yes, both lighting control systems work during Cummins generator power. The Kohler was a bit more troublesome in that it...
  8. guykuo

    Natural Gas Generators

    We've had both Kohler and Cummins NG generators. The Kohler required a higher NG gas pressure and we had to put in a new gas main and regulator to accommodate its needs. That generator was OK for about 8 years, but starts developing their characteristic RPM instability as they age. Service /...
  9. guykuo

    Ubiquity EdgeRouter X - Configuring to Isolate Surveillance Networks

    As you explore the EdgeRouter and its rules, it really helps to keep in mind.... All rules are relative to the router. Inbound rules are for packets entering the router. Outbound rules are for packets exiting the router. Local rules are for packets accessing the router's internal services...
  10. guykuo

    Ubiquity EdgeRouter X - Configuring to Isolate Surveillance Networks

    I power my Edgerouter via 12 volt plugin. All my POE devices are powered via POE+ switches. Depending on the model of Ubiquity access point, powering via a POE switch may or may not work. Some of them use "passive" POE which is not the kind of POE supplied by switches. See the table UniFi -...
  11. guykuo

    How to create a low humidity environment to put bullet camera back together?

    When I did resealing, I put the camera and silica packs into my dehydrator for a few hours. Then reassembled while hot.
  12. guykuo

    Paint my LPR Camera or no?

    I used different color spray cans of paint intended for camo. Home depot has them.
  13. guykuo

    In ground camera placement ideas

    It's really not a matter of the lens angle. It's the IR illuminators output cone touching any nearby objects and reflecting back onto the front glass of the camera. That creates halos whenever the IR is on. You can demonstrate this yourself by putting objects within a foot of the camera but just...
  14. guykuo

    In ground camera placement ideas

    Only issue I can think of with the rocks being placed is IR back reflection clouding the image. None of my cameras like anything near their lens unless the object is way off axis. Otherwise, it's halo city when the IR illuminator comes on. I guess you could also go with separate illuminators.
  15. guykuo

    Same form factor as SD1A203T-GN but with better camera?

    I replaced one of my SD1A203T-GN with 4MP SD1A404XB-GNR (both from Andy). Definitely a noticeably sharper image in the daytime. Night time performance is a touch less light sensitivity than the 2MP version. It's still a lot better in the dark than a non-starlight, and I can see everything I...
  16. guykuo

    Budget Dahua Cams or china alternatives under $100?

    Many thanks for the STL's. I print PETG and polycarbonate here. Should be able to get something to work. That's an elegant looking mounting solution you designed.
  17. guykuo

    Budget Dahua Cams or china alternatives under $100?

    Grabbed two of the Amcrests. Thanks for the tips availability and discount code. Flashed to Dahua firmware..... and definitely a lot better optics and sensor than a cheap, old, 6MP Chinese version, hacked English language, Dahua turret. Also, great to have video viewing without plugins. Most of...
  18. guykuo

    Ubiquity EdgeRouter X - Configuring to Isolate Surveillance Networks

    Sorry to hear it didn't work. Without actual xboxes here, I'm afraid I won't be of much further help with that.
  19. guykuo

    Modification SD49425XB-HNR 4MP, Add 12 Volt Microphone Power Output

    Double check that your resistor, capacitor and wiring are not shorted and fit the space available.
  20. guykuo

    Modification SD49425XB-HNR 4MP, Add 12 Volt Microphone Power Output

    Here is the completed wiring to implement what I drew in the schematic overlay. Resistor and capacitor were positioned to fit avoid the very crowed space between board center and camera wire feed. Be sure to observe polarity of your electrolytic capacitor.
  21. guykuo

    Modification SD49425XB-HNR 4MP, Add 12 Volt Microphone Power Output

    We tap that power with a 480 ohm resistor to limit current draw. The other end of the resistor feeds power out what is normally the 12 volt DC input. Filtering is performed with a 100 uFd capacitor.
  22. guykuo

    Modification SD49425XB-HNR 4MP, Add 12 Volt Microphone Power Output

    The +12 volt power is still available on pin 8 of J2
  23. guykuo

    Modification SD49425XB-HNR 4MP, Add 12 Volt Microphone Power Output

    Microphone power output mod for a SD49425XB-HNR (running on POE+ power) to provide 12 volt microphone power. Much as I did for the SD49225T-HN, in Modification - SD49225T-HN Add External Microphone Power The resultant power out the DC input jack of about 25 ma powers a Microseven M7WP-MIC. The...
  24. guykuo

    Ubiquity EdgeRouter X - Configuring to Isolate Surveillance Networks

    192.168.93.82 is the source, not destination Also, might need to double check regular UPNP is not also active. delete service upnp commit save
  25. guykuo

    Ubiquity EdgeRouter X - Configuring to Isolate Surveillance Networks

    You correctly understand the config changes made re UPNP2. I'm surprised that one would also need the additional port rules, but you would put accept rules for those ports from eth3 in the restrict_LANs_In rules, right after the Prevent Access of Protected LANS rule.
  26. guykuo

    Ubiquity EdgeRouter X - Configuring to Isolate Surveillance Networks

    I don't have any gaming machines on my network. So, I can't test the following. Basically, you must enable UPNP2 if you are using multiple Xbox's. Simple port forwarding would work with a single machine, but apparently not multiple. BTW. Do not also have UPNP running simultaneously with UPNP2...
  27. guykuo

    Modification - SD49225T-HN Increase Upward Tilt Range

    Over two year follow-up. My upward tilt enhanced Dahua PTZ's are still working fine. This despite over two years of full exposure to cold and sun - with their entire bodies painted flat black.
  28. guykuo

    Bought a SD1A404XB-GNR on Andy's BlackFriday deals and can't seem to power up

    Minute or two... Yep. This model takes a much longer time to power up and begin motion range calibrations than any of my other Dahuas. The first one of these I purchased I thought was dead. Then I happened to leave power attached longer and it came to life.
  29. guykuo

    IPC-HFW5831E-Z5E - Focus reset on reboot

    Looking for some of my old posts. Should help get you started. Gotchas are the firmware version of your camera may require different format commands for the API commands. Also, digests vs name/password authentication can trip you up when beginning to use scripts...
  30. guykuo

    IPC-HFW5831E-Z5E - Focus reset on reboot

    You could run a periodic script to set the focus to your desired setting.
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