Sir Lenscelot

I think you will find a proper firewall will protect LAN to LAN, WAN to LAN and LAN to WAN. Both inbound and outbound. As i said if data is exiting your highly secure network then i suggest its your exit point you look at. Your lack of knowledge regarding this shows how dangerous it is to have CCTV installers configuring networks without the proper background in networking and network security. And your welcome to have my IP information and logins if i felt the need to install them, However it would do you no good as my network would be secure with a properly configured, good quality firewall. You know the kind that actually can be deemed a firewall which protects all directions.

What version of ivms?

Shouldn’t that be smtp.gmail.com?

If security is paramount, would you trust a cctv vendor to protect you. If it’s little old dears falling down stairs that you want to spy on then I say to China and anyone else, get on with it. If it’s truly high security then your protection should start and end at your network entry point. Nothing should leave your network without you knowing about it. Properly implemented firewalls are what should be protecting you. Or better yet just keep it off the net.

Hi Macklington Sounds like you may be on the right track with the power issue. In this instance i would firstly check that you are receiving 12v at the camera's location using a multi-meter. However it is possible depending on length of cable and condition there may be some volt drop, so i would secondly test while the camera is connected to the power source. . You can do this by putting your meter across the two screw heads. (Your new camera might draw more power than your old one). Also double check polarity of your power connection. Another Check is if your PSU is fused then check the small glass fuses in the PSU. These can blow easily if when swapping camera you accidentally shorted the terminals. They can also blow if your camera draws more current than your previous camera as typically they can be installed with only 500mA fuses. As a last resort rig up a temporary 12v supply downstairs to power the camera locally which should eliminate any power issues/cabling issues. Other issue it could be is that your existing cabling is not suitable for TVI. Now i know that the CCTV supplies sell AHD and Turbo HD like its the best thing since sliced bread and that it will work on existing cabling but that isn't always the case. Poor cabling or unsuitable coax can cause problems, especially over greater distance. And the nature of digital surveillance is that it either works or it doesn't. So try as a test setting the camera to CVBS which should mimic your old camera setup. Analogue signal is more resilient in this way because their isn't just on and off but grades in between, interference will be visible on the display. It isn't either on or off. Hope this helps Sir Lenscelot

Hi Macklington A ground loop isolator can be very useful in reducing ground loop interference. To get no picture at all is unusual but not unheard of. Your photo suggests some other things i would check. It seems to me you have bought HD camera's which can be connected over coax but also with the ability to select transmission format. So i am assuming that your are attempting to use one of the HD formats, such as AHD or TVI. Can you please confirm? So obvious questions first Is the recorder compatible with AHD/TVI (i,e a hybrid recorder) or is it just an old school analogue CVBS format? What cabling type you using? If using cat5 and baluns, have you got the Polarity correct on the installed cable? Have you tested you get an image out of the camera while its in its installed location?, with a test monitor or even just hooking the recorder up near the camera itself and running a short lead you know works? Are your ends crimped on correctly? Is there a short between the core and the screen? can be tested with a multimeter. Model numbers of Hik recorder and camera's would be useful? Thanks Sir Lenscelot