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I think I know the answer to this but is there a way to control the relay output from a camera on the DMSS app? This can be done from the web GUI for the camera by pressing the little orange icon: However I don't think there's any way to trigger this on the DMSS app. Anyone found a way to...

Just wondering if anyone has restored the configuration on a Dahua NVR from a backup on a USB? I’m replacing a like for like NVR. Same exact model. The previous one was damaged beyond repair but I have a copy of the configuration. Will this restore all settings from the previous unit onto the...

Hi All, I know this scenario has cropped up many times but this situation is a little odd and hope someone knows what's happened here. I have a 5432-16P NVR and have 20 cameras connected to the NVR with 16 via the PoE ports on the NVR. All of the cameras have installed fine and are all...

Hi, I'm looking to control Dahua NVRs with http API requests. I have successfully been able to switch cameras and split screens but I have been unable to carry out navigation like up, down, right left, enter etc. The reason for needing this is for a centralised system with the NVR connected...

Hi All, I really need some help with this as have tried everything. I used an external USB drive to backup a few days of video from a Dahua NVR. The backups were selected in MP4 format and seemed to backup fine. I then tried to access these backups by plugging the USB drive into a Windows PC...

I have setup an IVS rule for Human triggering which seems to work well. However I'm confused by the Period setting for audio & warning light linkage. In the GUI you have a period setting under warning light linkage - see attached. Is this supposed to control the linkage period for just the...

Hi All, I've been asked to spec up a CCTV security system for a commercial premises. Initially 7 cameras with expansion likely. I therefore am looking at 16CH NVRs. The client also wants floodlights controlled either through PIRs or via triggers from the NVR. Previous experience with Dahua...

Hi All, This is a long shot but hoping someone can help. I purchased an analogue DVR many years ago and have now passed this on to a neighbour. It worked fine when I had it but it was disconnected for some time and although the unit still works it will not save the configuration on reboot...

I’ve done a search but can’t find the answer I’m looking for before buying one of the above. I am gradually replacing all my analogue cams with IP and have purchased many from Andy. All working great. I now need to replace several which are wall mounted and rather than squeeze the cabling into...

Hi All, I've just purchased an SD Card (32gb) for one of my IP cams (HDW5231R-ZE). It's showing successfully through the cams web interface and I've enabled ANR on the NVR (XVR7416) interface for that cameras with a record time set at 3600secs. I had the NVR shutdown for around 20mins today and...

Hi All, I've been working on customising commands to control my Dahua NVR from http commands. Ultimately I will add these into a remote interface for control of the DVR. I've attached the API document I have for NVR/DVRs. This gives commands for most options but I'm struggling to get a command...

I've had IVS Tripwire notification setup for a while and all seems to work fine. However I've noticed a setting on the camera IVS page called "Pixel Counter". Can anyone explain what this is and how to use it?

I've installed quite a few IPC-HDW5231RP-ZE and have always been able to have the pre-terminated RJ45 socket inside whatever structure I'm attaching the camera to. In this new case I need to use a junction box and am struggling to find a cable gland which will install on the junction box and...

I've been trying to setup snapshot recording on the DVR for a local alarm input. I have alarm recording working for the alarm input which works perfectly and I can play these alarm events back through the DVR. However I can't get snapshots to record and then view them on the DVR. I've setup...

Hi, hope someone can help with this. My Dahua DVR was working fine with email notifications of alarm and IVS. However it has suddenly stopped working and I've received no email notifications since the 4th Feb. I've gone into the email settings and done a Test which constantly reports Mail Test...

Hi, Hoping someone can help with this. I have the above DVR with dual HDMI outputs. I'm attempting to configure HDMI 2 to display certain cameras. The problem seems to be that HDMI 2 settings are only allowing me to view the analogue cameras and not the IP cameras as well. Not sure if this...

I've a few Mobotix cameras and am trying to add them to my Dahua XVR7416L but I can't get them to display. Have also attempted via SmartPSS but still no luck. I'm not sure if Mobotix cameras can even be added as they're not listed as a protocol type in SmartPSS or via the NVR setup. Anyone...

Hi All, I need some help with the above DVR. I've just upgraded from an older Dahua DVR to this one and am having a problem with controlling the unit remotely. Let me describe the setup. The unit is housed in a central rack connected to an HDMI 8x8 matrix. This allows distribution of the CCTV...