dnfakrnl

Let's say the 12v dc camera is getting 1-2v extra. So it would have around 13v-14v What will happen to the camera? Same goes to 24v ac cameras, if they have 1-2 extra voltage, will they go bad? or just not function like low voltage? One of my camera(PTZ- http://www.ebay.com/itm/151632720693?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT) from is getting a lower voltage and I can't shorten the cable(rg59) anymore so I need to get the regulator. My regulated power supply has output of 13.8v DC and other one supplies 14.2v DC. The PTZ camera is getting 10.8v~10.9v, which is enough during the day and night with infrared activated. However my issue is, when I set up preset and have sequence mode on, it stops working during night time when infrared activates. Other than that it functions well enough during the day. I was assuming anything between 12v-13v would be considered safe. I was curious what will happen if cameras get higher than regular voltage and what is the actual safe voltage?

total of 4 of them. Is that so? How long do PTZ usually last? Both 12v and 24v. These PTZ's will be moving 24/7 on a sequence.

Thanks very much Phil! This explained alot, I will make sure I check the specs next time!!

I can't agree more. But it was a huge construction and installing cables can't be done anymore. So I'm trying my best to do anything from this point. I honestly thought 70-80 ft would be tolerable even for PTZ camera despite being 12vdc. There are a lot more dramas. The owner of this gas station is being a prick so I'm just trying to wrap things up as fast as I can. Worst case scenario, he won't pay me although I've been working on this for about 2 month. Time was running out and I found this out at the very end.. But I learned a lot from this and I won't make the same mistake. So moving on to topic, thanks for the reply.

I want to install cameras at a gas station and the owner wants the license plates to be visible. I can't install that many cameras, as the channels were already occupied. So I'm left with 7-8 channels. Anyway this place is pretty big. Is there a really good quality camera that can pick up license plates and even scratches of the car without zooming in very much, that's not an IP system? What are some factor for a good quality display? MP + resolution + ? Thank you in advance and a happy new year Edit. I have a DVR + 32(SD + HD + PTZ) at the spot Edit.1 I did some more search and I found HD-SDI cameras are one of the best?

If I install HDCVI 1080p cameras like following: Will the license plate be visible when I zoom in from the recorded footage of DVR?

http://www.ebay.com/itm/151632720693?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

I have installed 4 PTZ camera at a 76 gas station. 4 PTZ are all outdoor and I tried my best to shorten the distance between the cameras and its power. However, 2 out of 4 is still not functioning to the fullest. 2 PTZ cameras that are working are getting 11.5v and 11.7v. Other two that aren't working so hot is getting 11.0v~11.1v and 10.8v~10.9v. I haven't checked the camera that gets 11.0v~11.1v if it is functioning well because it's always on the bright side, so the infrared was never on to check. So my guess is these PTZ camera will fully function when it''s above 11.3v+ During the day time, everything is perfect. Even the presets, sequence, motion tracking, everything works completely fine. So my idea since I can't shorten the wire anymore, I will try to get a power supply and increase the voltage. I had 2 existing power supplies and they supply 13.8v and 14.2v. Now I'm hesitating to try this. Will this kill the camera? What usually happens when a camera is getting more than 1.0v~2.0v? Thanks for the answers in advance!

I've used RG-59, the distance between the power and camera should be 80-100 ft. Two of the camera that's working properly are around 30-40 ft. These cameras are getting 11.4v and 11.7v These two camera work perfectly fine even with infrared. The distance between the power and the PTZ used to be 200ft but I was not getting sufficient voltage at all, around 8v-10v so I cut down all the wires and installed power supply as closest to the camera as I can. So if this 14.2v power supply plan doesn't work, for example, if its too risky for cameras to get higher than certain voltage, that means I'm gonna have to set up another power supply box outdoor in the open, which the owner doesn't prefer. I will try to explain every details if I was asked. Thanks for the reply

So I'm gonna try my best to explain the situation for you guys don't get lost. I am working on installing 7 cameras at a 76 gas station + car wash. They had 32 channel DVR as a system and they had 7 vacant slots on it so I was asked to ask 7 more. He wanted to see everything, including LICENSE PLATES(he emphasize this everytime), in his property. I thought PTZ would do the job with right settings, so I bought 4 PTZ and 3 HD 3mega pixel cameras. Foremost, I tested these cameras(CCTV 1200TVL SONY CMOS 30x Zoom 8IR PTZ DOME) day and night, including its infrared, before I started this job. I have installed RG-59 cables and bnc connectors. They are all outdoor and are about 200-250 ft from the DVR. As I was done installing, I connect its power to the power supply and communication cable. It was working all perfectly! I thought I was all done so I was working on presets and sequence to cover the whole area. Then the night came and the PTZ cameras automatically switched to infrared and this is where the PTZ camera went all wrong. Black screen, can't really see anything, blurred motions and barely visible. I thought it was the power supply box and the box is not supplying enough power so I get rid of the power supply box and hook the power onto the adapters they sent me with the camera. Still the same issue. Only one of them is working fine out of 4. Coincidentally,the only PTZ camera working fine is hooked up on to the coax cable that was there already, I took one of the camera out because it was old. I decided to check cameras system information from the setting and 3 of the cameras that are not working is getting 10.1v, 10.1v and 8.0v. During the day it's functioning okay but every time when infrared is on it goes wrong. So then I try to diagnose the problem, trying to locate where the power is leaking. I test power and it's getting 12.4v in and out. It rained over here in California so I thought the water got into the either the cable or the camera so I give it some time to dry up and try again but still the same low voltage. So I decided to take the camera home and I gave it a test again. Night vision works completely fine at home.. I haven't fully tested at home yet because all the other equipment is at the work location. I can't really think of anything at the moment.. Anyone knows about this issue? Or can guess? I am sure almost everyone here knows a lot more than me about CCTV and it's installation process so I'm betting on it. 1st one gets 8.0v doesn't work 2nd one gets 11.1v (works fine) 3rd one gets 10.0v doesn't work Once again they all work durin the day just doesn't work with infrared. My apology for posting a topic with such a long text. I will frequently get on to answer any questions if I ever get any! Edit1. Forgot to mention that cameras are 12v dc

I'm working on a gas station right now. I was asked to take a look at the camera on top of the register so I took a look and the powers were dead. So I got the new rg-59 in and it's working again. However, the guy is asking me why aren't the texts being displayed. I told him I don't know that's not my issue, since he only told me about fixing the camera and I had no idea he had the text inserter activated. Now he is asking me if I can get the text to be displayed again. Then he told me that 2 cameras on top of the registers were activated with VSI-PROMAX. Thus, I expected 2 VSI-PROMAX but I only found one.. Is there a way to connect 2 cameras with a single text inserting device? The device has 1 video input and 1 video output. I know input goes the camera and output goes to DVR/Monitor. I want to know the ways! Please guide me!

Since one of the camera is already activated with the text inserter I'm assuming it's connected properly. I can't seem to find the cables though. I don't even think the camera is connected to video input of text inserter but it's somehow working. I wanted to know if there was some other way it's done. Such as, having a hub in the middle that is connected with text inserter's video input and output and camera in out also connected to it, then the hub goes to the DVR? I am really new to CCTV world so please don't yell at me =[ Hi. It sounds like you have two AVE UNITS with your customer having said both used to work You say you needed to change the cable for the cameras work ...... And you went direct from camera to dvr and not to the AVE unit This tells me that the AVE unit has lost power and that will also switch camera image off. How many pos systems are at the store ? I don't think there are any POS system. Just two cash register. As in AVE unit, are you referring to Video Input?

Since one of the camera is already activated with the text inserter I'm assuming it's connected properly. I can't seem to find the cables though. I don't even think the camera is connected to video input of text inserter but it's somehow working. I wanted to know if there was some other way it's done. Such as, having a hub in the middle that is connected with text inserter's video input and output and camera in out also connected to it, then the hub goes to the DVR? I am really new to CCTV world so please don't yell at me =[

The camera went directly to DVR. What does two data feeds mean? Is there a way for me to get both cameras to be displayed with text even if it didn't go to pos unit?

haha gotcha sir

I do think it's the resistance of the cable due to the distance is the cause of voltage drop. What if I buy and install voltage regulator or voltage booster? Would they help? Or is there a device that maintains the dropped voltage due to the distance?

I think you guys are all right. It has to be the distance dropping the voltage. I forgot to add this because I didn't know this was gonna be an issue but When I installed RG-59 cameras to the office I laid all the cables in the knee wall or loft whatever it's called. Now that I think about it, I might have A LOT of extra wires rolled up there. So as soon as I go to work Monday I will check them and get rid of the all the extra wires and install a psu near there and send video to the same office that has the DVR. So video cable doesn't have to do anything with it right? It's mainly the power right? Thank you guys. You guys are great.

I'm terrible yes these are 12v dc cameras