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Those 220v are not "outside", this is not a home, but an apartment (the other side of the door is not "outdoors"). No idea on how one of this bells/chimes are supposed to work, but from what I have googled it seems quite common to have them work at 220v. In fact this one seems to be manufactured in 96/97, so it is not that old. Not sure what kind of button you expect on the other side of the door, but the only difference with one you would use to turn on/off lights is that this one turns off when you stop pushing. Anyway; I tried using one small 1.5V battery to close the alarm input, it did not do anything. I tried with two batteries (3V), it also didn't do anything. I tried with a 9V battery, no luck. I just tried with two cables, and it did work. So I guess it just can not be activated with any voltage, so I think I just need a 12v relay, something like this: http://www.ehow.com/how_7224593_wire-12v-relay.html

So it is 220v, and the chime seems to be just some electromagnet that will make a metal part inside hit the metals on top and bottom. What is sure is that I have 220v, so the question stands, how could I connect a 220v input to a DVR alarm input? Should I just convert it to 12v and input those 12v, or will I fry the DVR? Thanks! Edit: I could probably connect it like tomcctv says, using the button on the outside, but geting my cable there would be a pain in the ass. Not impossible, but something I would rather not do.

There is no jumper on SATA HDs, and being a WD AV-GP 1.5Tb HD it is surely SATA. Master/slave jumpers are only for IDE (ATA) HDs.

Ok, I will take my tester with me today so I can check it again at home, and see what is under the CE plastic cover. Thanks!

At the front door button? I will try to do so tonight, I do not have the tester with me. But on the chime/bell which is where I will be conecting myself, I have 220v. But if I can input 12v on the Dahua alarm input, that would be no problem, I could just connect a 220v->12v power supply on the chime, and from there to the alarm input. I just did not want to try that without being sure that conecting 12v to an alarm input is safe.

I also use mainly wide screen resolution setups, and I have never had a problem with PSS. I am right now at 1920x1080 and PSS adjusts perfect to use all the available space.

Sorry, I am not native english so I did not explain myself right. Maybe I should have said my "chime", bell... and it surely does work with 220v, I did test it to make sure. And there is no "back door button", just one outside that will make the bell ring inside. So, when someone pushes the button outside the door, the bell inside gets 220v and it rings. Here is picture.

If the leds are always on, I would say those are defective cameras. Image might be better or worse depending on the camera quality, but the leds should turn off when the ambient light is enough to work in colour mode.

I guess that is the reason why Dahua and DVR manufacturers in general do not put for download firmwares on their web sites... The fact that your DVR is 0404LE-AS and the firmware filename says xx04LH-X should have ring a bell.

Camera not powered up, non working camera, bad cabling, PAL/NTSC setting opn your DVR wrong, ... who knows. Try to connect one of those cameras directo to a TV to see if you get any video.

Check your DVR box for accessories, it probably comes with your DVR.

You do not need a hard disk installed in order the view the cameras live.

It does have RS485, so you can indeed control the OSD menus from the DVR!

The camera is the one you linked above? Because that one is an analog camera, and it does not say anything about RJ45 or RS485.

D1 resolution is about 0.4MP, so even at 1MP resolution you are geting 2.5 times the resolution you have with analog. So of course IP cameras are much better when you are looking at IP cameras over 0.4MP resolution.

You can't. To be able to do that, the camera would need to have RS485 for controlling remotely the OSD menus (like PTZ cameras). You can only adjust the settings from the camera itself.

I did try it today with a 3108E and it did work, indeed... So I guess that the password works on all models with current firmwares. dexterash, while I agree that the password should not be given around happily, you can not keep a document/password like that "confidential" forever. For security's sake there should not be such an easy way to reset a DVR without even having phisycal access to the machine, I doubt anyone will have a DVR set up with telnet access from outside, but I am sure almost anyone does not protect their DVRs behind a firewall for telnet access from inside their own network.

Is that password (vizxv) the same for all Dahua DVRs? Anyone with telnet access to your DVR is able to reset the password, really?

You are not puting the login data on the RTSP command. It should be like: rtsp://IP:PORT/cam/realmonitor?channel=CHANNEL&subtype=ENCODING&authbasic=LOGIN Login is encoded; you can encode it on the following web site (admin:123456 would come out as YWRtaW46MTIzNDU2): http://www.base64encode.org/ Something like: rtsp://192.168.1.100:554/cam/realmonitor?channel=1&subtype=00&authbasic=YWRtaW46MTIzNDU2

Probably just a cheap camera. Connect it direct to a TV, and you will probably find out that your DVR has nothing to do with the bad image quality you are geting.

No, with Gmail the username is your whole email address. Here are some screenshots on how to configure email sending on Hikvision and Dahua DVR using a Gmail account. http://www.securamente.com/como-mandar-emails-por-smtp-desde-un-dvr-o-camara-ip-utilizando-gmail/

It does indeed look like it has 3 axis, and both models seem to share the same casing, thanks!

How weird... I think this is the third time I read about this subject on the last days, while I do not remember this being asked before. We have installed several times double DVR systems; leave the old DVR on plain sight, install the new one hidden somewhere, so if there is a break in, they will just take the old unit without even thinking that there might be another one installed somewhere else. We use what we call a video distributor 2x4ch, 2x8ch or 2x16ch like the following: http://www.securame.com/video-distributor-2x4ch-bnc-distribuidor-de-video-c0408-p-967.html http://www.securame.com/video-distributor-2x8ch-bnc-distribuidor-de-video-c0816-p-968.html If all the cabling is in place, we will find a place with enough room where we can cut all the cables and put BNC connectors on the two sides. From there, the cable from the camera will go to an input on the video distributor (In 1), the cable to the old DVR will go to an output 1 from input 1 (Out 1.1), and we will just install short cable to go from output 2 from input 1 (Out 1.2) to the new DVR. I hope I am explaining myself enough!

Change port 80 to something else; many routers do not like outsiders trying to connect to port 80 (their web interface port).

Making the same question 9 times on 9 different subforums and typing in this huge font will probably make everyone just ignore you.