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Matt,

Were you using 24v ac? I have been using 24v mostly these days and I notice that when the camera first fires up it takes a second to recognize 24v and then kicks in. With 12v it seems to go right on. In my case, it seems like the camera never "kicks in".

Also, maybe its just me, but I have been using cat5 with baluns for video and power (2 pairs for power) with 24v and the picture is great. When I tried 12v with cat5 it sometimes was wavy and the image was not stable. Why is this? I did use siamese however on my current job, and I don't think the wiring has anything to do with the problem camera.

I'll take it back to the distributor Monday and we'll fool with it. If it doesn't come back, I'll just get another one. Thanks for the help and input.

Matt,

Did you get a picture at first and then it went out? I did make sure all the connections behind the camera were pushed in to place, but it didn't do anything. I had a feeling that was the case that something may have gotten loose. I'm glad this happened to someone else and not just me so I don't think I am crazy. What got me is that is worked, and then it went out. I did turn the camera and focus it so maybe something could have gotten loose, but this never happened before and I have installed a lot of them. At first I thought is was a voltage issue that may have blown out the camera, but I tested it and the voltage was fine. something must have gotten loose, but like you said, it's brand new, so I should just get another one Monday. Let me know how your testing turns out. I would be interested to see if loose wires are the culprit.

I had an install today. The usual, except one of the cnb cameras (CNB VCM-24VD) worked for a few minutes, and then went blank (sort of off white) and would not come back. I tested the voltage and it was fine. I am using a 24v power supply. I tried another of the same camera at that location and it was fine. I brought the non working camera to the dvr and tried it there with the same result. The service port didn't work either. Is there a way to reset the camera, or do you think it is bad? I have never had a cnb camera go bad, but since another camera does work at that location, I'm guessing it may be. The voltage at the camera location is 26.8, but the book says it can range from 20v to 28v with no problem, so I don't think that is the problem, and since video is not the problem either, I am at a loss. If anyone has any ideas I would really appreciate it. Thanks.

With the cnb camera armor domes, or any outdoor dome for that matter, when you mount directly to the wall as opposed to using a bracket, can you see directly down or across the wall? For example, is anything out of your line of sight by wall mounting? Does the 3-axis gimble allow for enough play to not miss anything?

Thanks Scorp. I'll most likely go with one of them. Only bad thing is if customer is recording on the dvr it will get interrupted.

Thanks. Scorp, you're right. Channel Vision makes this type of device. I have to see if I have a cable going to the tv though. Do you have a diagram of how the setup looks?

I have a client who has digital cable and an analog cctv system. I want to connect the dvr to the cable system so they can view the cameras on the tv's throughout the house. What is the best way to accomplish this? I haven't done this since before the digital days so I am a little out of the loop.

I had a customer come to me asking if I could install cctv IN his car. I know the police have this, and buses, but I'm not too familiar with it. He is having a problem with on street parking and vandalism. Is there an affordable option that I can recommend to him, and is it similar to regular cctv in installation? Thanks.

Will be running xp pro with 1480 16ch pci-e card with possibility of adding a second 1480 pci-e in the future.

1 INTEL CORE i5 SYSTEM

1 INTEL I5-750 2.66G 8M LGA1156

1 INTEL HEATSINK AND FAN

1 P55M-GD41 INTEL P55 CHIPSET MOTHER BOARD

2 2GB (2X2GB) DDR3 1333MHz MEMORY

1 WD 160GB 7200RPM SATAII WD500AAKS (for operating system and geo software only)

1 INTEGRATED AUDIO ON BOARD

1 RADEON HD4350 512MB DDR2 DVI/HDMI

1 INTEGRATED 10/1000 GIGABIT ETHERNET CONTROLLER

1 22X DVDRW SATA OPTICAL DRIVE

1 COOLER MASTER ELITE 330 W/350W PSU

1 5X 3.5" INTERNAL EXPANSION SLOTS FOR EXTRA HARD DRIVES

I am going to add 2 1tb drives for video storage. Other than that, how are the specs? What would you upgrade the power supply to? Is the video card good enough? Am I missing anything?

Granted my internet is not the best, but I can't get more than 4 cams to come up out of 21. Can anyone get it to work properly, or is this a known problem?

I have searched the internet but I can't find any info. If anyone can help, let me know. Thanks.

A friend of mine who owns an apartment building in California wants to install a cctv camera system in his building. He has staff that will perform the install. Does he need a permit? If so, what kind? Does he need to use any type of special cable, ie plenum, or is conduit required? I am not from California so I don't know the local laws and I don't want to tell him the wrong thing. If anyone has any knowledge on the subject I would appreciate it. Thanks.

I am doing the cctv at an apartment building. They have asked me to also install a proximity entry reader. I don't want to pass it up, but I have never done one before. The building has an old telephone entry system connected to an electric door strike. There is also a keybox attached to the telephone unit which is how tenants gain entry. They insert and turn their key and the doorstrike releases for 5 seconds to let them in. They want to get rid of the keybox and replace it with a proximity reader so tenants can simply swipe a card on their keychain to get in. Their is one main entry, and possibly 3 or 4 other doors they may want to do the same thing to. I am installing a geovision cctv system, but I don't want to use the geovision readers because they are not tested. I want something simple that is easy to program and not super expensive. I have installed biometric time clocks, and they have live audit trail and can be programmed via a pc through a network. I don't need this level of technology, but it would be nice. So what do you recommend? Thanks.

I like the idea of terminating at the power supply and extending video feeds with cat5e. This way everything is jacketed and better protected. This sounds like the best way to go. It's neater too. I think I will use this method for the upcoming job.

Those are good solutions. I just wouldn't want to leave thin cat5e wires hanging or extending into another room all by themselves.

Soundy what do those b clips look like? I have some that have a gel like insulation in them. I always thought you had to strip the wires though.

Getting back to using cat5e as an all in one solution: In the control room where the dvr and power box are located, how do you separate the power wires and the video wires? I'm guessing you strip the cat5e and separate the wires and put a balun on for video and connect the power wires to the power box, but the wires are so thin, do you use anything to protect them since they no longer have a jacket on them? If the power box and dvr are not close to one another you might have a long run of cat5e wires with no jacket which could easily get knicked or ripped out. How do you handle this?

I understand, but if you are using 24v and distances are in the 300-400ft range or less, even at .5a in theory you should still be fine. I just don't understand why this is not deemed "professional". If you were to do a job like I described above, would you use anything but cat5e, regardless of the situation?

I know this has been gone over ad infinitum on this forum, but what would be the advantage of using anything but cat5e for a job like this in the future if voltage losses are so minimal? Siamese is bulkier, more expensive, and harder to install in tighter spaces. From what I can gather using 3 pairs of cat5e for power is essentially 18ga anyway. Using the cat5e also plans for future ip camera use. So why do most recommend against using cat5e for power?

An upcoming job requires 8 cameras with no economical way to run cabling. Cat5e is present however in all proposed camera locations. I have always used nothing but siamese cable for power and video, but here it is not possible. My question is, will I be able to successfully use the existing cat5e for power? Basically what I am asking is has anyone had luck with this type of setup in the past? The runs will be no longer than 300-400 feet. Here is the camera I will be using:

http://www.cnbusa.com/en/html/product/product.php?inc=spe&seqx_prod=1066#p_v1

If I use one pair for video, and 3 pairs for power, will this work and be stable?

I see that using 3 pairs is somewhat equivalent to 18ga wire, but I have never done this, so that is why I am asking.

I have a 32 cam geovision system running 8.3 software. I would like to create a webpage with 4 to 8 camera views that I can log into and monitor, and maybe have a few user names and limit what they can see. I set something like this up before with older software, but before I begin I remember I had an issue with codes and downloads. Is there anything I should know to make this easier without a lot of trial and error? Thanks.

Yes. I already have a dyndns name at this location. They are in the process of purchasing a new sonic wall, and until then I need to access the system remotely via dyndns. When the new sonicwall arrives, it will take care of the dyndns and I can remove it from the geo pc.

Have any of you added dyndns to a geovision pc, and if so, does it cause any problems? If not, what other methods are you using to log in remotely with a dynamic ip that changes often?

I just put together a new 32 cam geovision dvr:

intel q45 motherboard

3g ram

1tb seagate sv hardrive

160g seagate drive

512 nvidia video card

600w power supply

2gv-1480 cards

dvd rw

Could I have simply used the onboard video card attached to the motherboard instead of the nvidia card? What is the purpose of the extra video card?

Well, the problem was a polarity issue! The guy that wired before me didn't have a uniform way of wiring and wired some backwards! My question now is why did the power supply not trip the breaker? Other power boxes I have used tripped the breaker when the polarity was reversed. Is this not a feature on all power supply boxes? Also, how much damage can be done to a camera by reversing the polarity?