psu

Can anyone recommend the best relay (and PSU to use with it) to trigger garden flood lights via the alarm out please? There are so many out there its a bit of a mine field. I have two floodlights, both with PIR. One is reliable, the other isn't. The larger of the two is 70w, the other one is...

Hi, is it possible to connect the ds kv 6113 wpe1(C) to a door lock without using a 12V supply? Additionally some local people who install this system said that The psu should be a 12V ac one instead of a dc. The reason he gave was so the door lock doesn't make a loud noise when opening the...

Like many other threads on here, I found my new DS-7608NI-K2-8P unbearably loud. It has a channel well technologies PSU (KSA-180S2) with a 12v 5A rail, a 52v 2.5A rail and a really noisy 40mm fan, and then a second not-quite-as-noisy 40mm fan on the case. Everyone has a different sensitivity...

I have a DS-7604NI-K1/4P NVR, fitted with a 3TB HDD and 4x 5MP turret camera’s. Over the past few days the 48v external power supply gets very hot until it cuts out completely. It won’t power back up until the PSU has cooled down. When I power it up again with all 4x camera’s connected it will...

Testing microphones with Hikvision cameras A frequent question we get asked regarding Hikvision cameras is how to wire an external microphone to the camera as well as what microphone to use in the first place. The latter is a very broad question, and depends largely on the user's own...