Mordavia

Hello, First post here and I am hoping others can help us out. We are a small family company out of the Massachusetts area and have had a major problem with an HD over coax project. The equipment we are using: - 2 Speco analog cameras - 2 Digital Watchdog "DWC-HV421TIR" 2.1 megapixel HD-SDI cameras - 1 12v 8fused altronix power supply - 1 Everfocus DVR "EDR-HD-4H4" The Problem: Everytime we install a digital watchdog camera (located at the driveway) into the DVR at the site it instantly disables the test monitor output and the HD-SDI output. Our Troubleshooting: We have replaced the camera 5 times! (same model) We returned and replaced the DVR (same model) We upgraded and replaced the power supply We check continutity and power output of cabling We checked continuity and reterminated BNCs of video cable (RG59) Put the working digital watchdog camera on all HD DVR ports and they work Whats working: Both analog cameras are working One of the digital watchdog cameras are working (side of building) Non working digital watchdog camera shows ok green LED and IRs light up when covered power test ok BNC ports test ok We had the camera plugged into the DVR at our office and it worked for three days. Once we install it at the site the video outputs of the camera go black. the only thing different at the site is the additional 2 analog cameras and one other digital watchdig camera that is the same model. The coax is professional siemese cable, i forget what brand or specs, but it is RG59 CL2 rated. Any ideas? Has anyone heard of anything like this? Both Digital Watchdog and Everfocus have no advice. Thanks you

Are there any night vision analog cameras near the $150 range that have invisible IRs? I am having the everfocus ED730 shipped, but do all IRs glow red at night? If a camera with a very low lux rating of 0.0002 Lux does not have IRs will it still see at night?

Thank you for taking the time to respond. Would a 15" flat screen computer monitor that is left on at night be enough to illuminate a scene with a camera that has a 0.0002 Lux? I am now thinking the Speco technologies CVC6245IHR This is for an interior office about 20' X 30'

Yes we power cycled. And connected directly to the camera with a test monitor and connected the camera to two other HD over coax DVRS. The camera test and HD-SDI video outputs went black after connecting it to the twisted coax wire. And they never came back up. The inability of the camera to come back stopped us dead in our tracks every time. And we purchased this camera multiple times, and every time the same thing happend. We did not think to replace the wire at first because analog cameras passed through, and the cabling tested ok for continuity. Once the digital watchdog camera went black our troubleshooting was pointless. Maybe it was this particular model, but I will be too paranoid to ever use an HD-SDI camera again. I was lucky to have a patient client for this.

The camera DID disable the video outputs. The HD-SDI camera worked when the camera was connected directly to the DVR using our test cable. The cameras test and HD-SDI outputs went black when connected to the previously installed wiring. The camera never came back up when it was reconnected to the DVR using the test cable. This was the biggest problem of the install, once the camera video output stopped, our troubleshooting was pointless. And it was not fried, the power cabling was never to blame, just a small twist in the coax.

So we ran new cabling. And it worked. I pulled the old cabling out of the ceiling/walls and the only thing I could see was a twist in the coax. Although this wire worked for regular analog cameras it did not work with the digital watchdog camera. Do all HD-SDI cameras disable their video outputs if the coax is not perfect? If HD over coax installations require perfect coax cabling I think we will avoid using this technology in the future. Who know what condition previously ran wire might be in.

The cable is a home run, about 30ft. 10 feet of which i have not visually inspected.

oh, and its mounted to the on-wall exterior mount that is manufactured by Digital Watchdog for that camera. "DWC-V4WM"

We have connected a working analog camera to the run and it works perfect. We connected the non working HD-SDI camera to the DVR with a short cable after it malfunctions on the field and it still does not output video, but it did at the office before installation.......same thing, all five times I am planning on running new cable, we did test for continuity and the inner copper is not touching the copper braids until we force it to. We visually inspected the wire and it seems ok, BUT there is about five feet where a Comcast technician was working that we can’t get to unless we take the ceiling tile down (it's very tightly installed) we are going to do that next time we go back. Is it possible the Comcast technician installed a splitter on our RG59 thinking it was TV? Would an analog camera work through a splitter and would out continuity tests work through a splitter?