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Does anyone know if there are any alarm input sensors that are triggered by audio/sound? I relly never thought about this before but a big customer brought it up today. They had a break in through a wall that even had motion sensors installed; the motion sensors did not trigger an alert. They were even able to go past the PIR sensors (no idea how; but it seems they even got on camera how they did it). An audio sensor would have saved them from the break in, so now they are trying to improve their system with this. I don't even know if something like this exists; a sensor that when the audio goes over a given number of decibels will just close the relay. Thanks!

I'm not that much on alarm systems, so I really have no clue on how to avoid a PIR detecting someone or how they did it to them. But it did happen. The guy probably knows way more than I do abaout alarms, we are mainly CCTV. But on their case, I am quite sure that an audio alarm would have worked, and it would have worked way in advance to any PIR, vibration sensor, etc., I doubt anyone can go through a wall without any sound being done, and the alert would trigger before they have been able to get inside. What I am looking at preventing is something like this. Not exactly this, but you can get the idea (they didn't just use a hammer and made a hole, that would have triggered the vibration sensors).

It could do the job, audio input so any microphone can be used, and I guess I can make it trigger an alarm output. Not cheap, but at least it can be done.

That is nice, I think I have never seen any camera or DVR that has the option (actually I have never looked for it, maybe it is hiding somewhere on some units). But on this case I would need it just as an external sensor, since it is for an installation that already exists. They have already a few DVRs, cameras, sensors, etc, and would like to add "noise sensors" on the system.

@dexterash, That worked great! VLC is still in beta so it has a few glitches, but it is more than enough for what I need. And the video quality is way better for doing some demos (the camera I am using here has a crappy 2.8mm lens without IR correction). I do get "artifacts" on the video once in a while, no problems. Thank you! " title="Applause" /> http://i.imgur.com/NpAZFVh.jpg http://i.imgur.com/cE8mRB8.jpg

UPnP is for the port forwarding; the DVR will "speak" with your router, and let it know what ports it needs forwarded. Your router must also support UPnP for this to work. DDNS is something completely different, but many different DVR manufacturers support different DDNS services. I mainly use Hikvision and Dahua, they both have their own DDNS system.

Awesome idea, didn't even think of that. Thanks!

Nexus is 10" 1920x1080 screen; there is a HUGE difference between watching a stream at 704x576 and 1920x1080 (I can see the 1920x1080 streams with iVMS4500 HD and Hikvision IP cameras). And the main stream can be accessed remotely, it can be done from PSS from a PC. I am just wondering if it is possible to do it from a tablet/Android. I am also not trying to do it remotely with a bad internet connection, I am right next to the camera.

Those are some weird looking DVRs... Never seen them before, I also think they must be quite new.

Take a look at Dahua IPC-K100W. I still have not tried yet, but I hope to do so soon, it looks like a great camera for home use. 1.3Mp, micro SD, PIR, white led, wireless, bidirectional audio, ... http://www.dahuasecurity.com/products/ipc-k100-k100a--k100w-225.html

IVMS4200 users are NOT the same as your DVRs users. You have a login/password for accessing your DVR, and you have a different login/password for accessing your IVMS. Are you creating a new IVMS account, or a new account on your DVR? Creating an account on IVMS4200 will make that if that usera logs in IVMS4200, even if the software has been set up to fully access your DVR, he will be limited to using those options. But he is still connecting to the DVR with the account you set up when adding the device on IVMS4200. If you want to make sure the account is working, connect to your DVR with Internet Explorer, and try to log in with that account. Doesn't work? Then you created the account on IVMS4200, and not on the DVR.

DS-7204HVI-S build3_2010.1.27.rar Why do you need to upgrade? Feel free to PM me an email address if you want that one, it is the last one I have been able to find. I have newer versions for 7204HVI-ST and later models, but I do not know if they would work with 7204HVI-S. Disclaimer: If you mess up anything, it is not my problem.

Both Hikvision and Dahua have software for Mac available for free from their web site. No clue about Avtech.

It might depend on your climate, but generally speaking, it is not ok. No matter if the camera is protected from rain, it will not be protected from humidity, dust, dirt, etc. so eventually it will be more likely to fail than if it is was installed indoors. But it will also depend on the type of camera. Some cameras are better protected than others, so even if they are not rated for outdoor usage, they might work ok if the climate is not harsh. A PTZ foscam outdoors... I doubt that one would run for many years

You can have other browsers run an Internet Explorer inside a tab (like, google "IE tab" for Chrome or Firefox). But you will still be running Internet Explorer, since other web browsers can not execute ActiveX.

Yeah, I am always used to PAL numbers. 100fps@1080p PAL or 120fps@1080p NTSC. Thanks!

I am subscribing to this thread hoping that someone can tell if the fps can be split among several cameras. Like, 3216 can record 400fps@D1, 200fps@720p, or 100fps@1080p. I assumed that with that you could record 4 cameras at 1080p 25fps each camera, but that maybe you could also record 8 cameras at 1080p 12fps each camera. So, that the total fps that the NVR can record at a given resolution can be split between several cameras. Is that so? Can someone correct me if I am wrong?

Wow... I would love to be able to charge $1500/camera

I am seting up a Dahua 0404LF-AS with two alarm inputs for triggering push alerts and email messages. On Alarm1 input I have connected a PIR sensor, no problem here. When the PIR detects motion detection it warns the DVR, which then triggers a given action. On Alarm2, I want to connect a door bell that currently works at 220v. This way when someone rings the bell, I make the DVR send an email with a screenshot of the door camera. Question is, how can I connect this 220v to an alarm input? I am quite sure that inputing 220v on an alarm input is not a good idea, but how about 12v? Or what do I need to connect those 220v to an alarm input? Thanks!

Well, the door bell seems to be quite standard, at least here in Spain. I went to check for new door bells this morning to an electrical supplies shop, and they had like 8-10 different models, all of them were 220v. I checked one out, and to me it did seem that it was about the same thing that is currently installed. I asked if they were ok, and they say it is legal to have 220v door bells.

I am not an electrician. I did ask an honest question when I asked what is the risk. What is the difference between this button+bell, and any button+light bulb which also works at 220v? If I was to remove the bell and put a light bulb on its place taht would be "safe", but the bell is not safe? I really do not get it. I do not see this having any more risk than any 220v light bulb, and I do not see myself telling anyone to replace all their house lights with 12v led lights becuse they are safer, and that 220v lights are not OK any more.

If you have 2 routers, one behind the other, you have to configure them both. From your ISP's router you have to forward the ports to your router's IP; and then from your router you have to forward the ports to your DVR. You have to understand that this is an inbound connection, someone on the outside of the network is connecting on the network to see your DVR. The connection comes from the internet, so your ISP router needs to know where to send it too, which is your inside router. And then your router needs to know also where to send a connection to a given port, your DVR's IP.

ak359 please don't missunderstand me, I do not mean to be rude and I do appreciate the help on this forum; but I am here installing the CCTV system, and I was asked if it was possible to wire one alarm input so it will alert when someone rings the bell. That is my task, I really have no need to replace the bell, the front door button, etc, unless I think there is some risk on how it is set up right now, and I am really unable to see any problem on how it is currently working. Thanks!

Tom, I tried to get back on topic, but it didn't seem to work; we install CCTV, not door bells. I am really not that much interested on knowing what doorbells spanish law allows, since I have never installed any, and I doubt I will. But even then, I don't see the point on 220v bells being forbidden. 220v light bulbs are allowed, right? I can have a button that will turn on a 220v light bulb, but not a 220v door bell? Could someone explain me the difference? 1, I am not sure what you are saying there; but I am geting voltage reading because I am pushing the button outside the door while I am taking that picture. 2, It has no earth. But I will say it again, any light bulb also does not. Are they also unsafe? If you found something that is actually 35E and that I can use to replace this bell with and will also give me a relay output, please feel free to post a link. Otherwise, this thread really was not meant to be a thread about replacing a door bell, but a thread on how to connect from 220v, to an alarm input on a DVR... Thanks!

Aaaah, of course... I was always thinking on puting a 220v to 12v in there; but since I am not able to just connect 12v to the alarm input, it will be easier to buy a 220v relay, than a 12v relay with a 220v to 12v adapter. I see if I can find one tomorrow, thanks!