Securame

You don't. I guess those cables are from a zoom camera that is supposed to be mounted on a PTZ enclosure. The PTZ enclosure will be the one with the RS485 receiver, and it will be the one who will tell the camera when to zoom and when to focus. Those 4 wires are not for RS485.

We have done some installs with 2 DVRs on the same place. A hidden NAS somewhere on the local network should also do the trick. I think it is way easier and cheaper on the long term than having to keep remote backups. The real/good one hidden, and another crappy/cheap DVR in plain sight. In the event of a break in, normal behaviour is to steal the DVR as soon as it is found, and they will not think that there is a second DVR recording everything somewhere else (that is what happened the only time there was a break in on a customer with 2 DVR setup, once they found the "bait" DVR they did not look any more, and meanwhile everything was being recorded on another unit hidden on top of the bathroom's ceiling).

Good info, thanks Ilkie!

Is that so? Any Cat5E cable must be pure copper in order to be certified?

If both brands have an SDK available, can it be done? Probably. Will it be easy? Surely not. Is it worth it for you? I don't have the answer there, if you tell me that you have dozens/hundreds of Dynacolor DVRs and dozens/hundreds of Hikvision DVRs, and you want them to work toguether, it is probably worth it to give it a try. Otherwise, I doubt it. Try to find a programmer and ask him for a quote, but if you only have one (or a few) Dynacolor DVRs I can tell you for sure that it would be way easier to just replace them with Hikvision DVRs.

DNS and DDNS (or DynDNS, or DYnamic DNS, or however you want to call it) are two complete different things. If your router did not have a Dyndns client and you wanted to set it up on your DVR, your router IP address would be the right setting to put on your DVR DNS settings (if your router acts as a DNS server), but your router IP would NOT be the right setting to put in your DVRs Dyndns (or DDNS as you say) settings.

What you are looking for is a modulator. You would need to be more specific on what country you are from or what TV system you are using in order for someone to recommend you a given manufacturer/model.

I really just answered to the part I fully understood... I can not tell you what DNS to use on your DVRs. Does your router act as a DNS server? If so, you should be ok having your router IP as the DNS IP on the DVR. What DNS do you have on your computer? The same DNS should work on your DVR. If some of your DVRs do not update the dyndns after a power outage, it might be that the DVR only updates dyndns when it powers up, and maybe the DVR is powering up quicker than your internet connection, so when the DVR tries to update the dyndns it still does not have a working internet connection to do so. That's why it is always better to have the dyndns client on the router.

Router's dyndns client always if the router allows it. The router will be the first one to know if your public IP has changed, so it will update your dyndns domain sooner.

You can't, IVMS4200 is unable to connect to a Dynacolor DVR.

If five DVRs have had the password changed from one day to the next one, this has not been "by mistake", someone has changed it. If you do not have the current password, you will not be able to log in the DVR neither from Internet Explorer, IVMS4200, IVMS4000, or any other way. You can ping the DVR IP to know if it is still up and running (if you get to the login page, it is). Removing the battery will not reset the DVR to factory settings, this is not a computer where you can clear the BIOS settings. If you have to reset the DVR passwords, contact your Hikvision supplier, they should expliain you how to do so and give you temporary passwords to enter the DVR and change the admin password.

Your DVR only updates your dyndns host maybe on powerup, or maybe every X hours, so until that happens there is not much you can do. You could change that 3G dongle to a 3G router that has a dyndns client.

A picture would help. What is "WHEN I ON THE DVR THE DISPLAY"?

2nd and 3rd pics do look better than the first one, that being said, they are not good. The two cameras you are linking, second one is just a normal camera (not good for sunlight/contrasts, indoor camera looking at a glass, etc), the first one is junk.

I am quite sure I have changed the RTSP port on Hikvision DVRs before... But anyway, what would be the problem on having all 3 systems use the same RTSP port? IVMS does not use RTSP at all, so I am not sure if you know exactly what RTSP is for.

Did you mean 2000Kbps/2Mbps there? Because 200Kbps sound like crap... The images you uploaded are with such a low resolution that it is hard to see anything there.

Just as a hint... If you expect to connect the 8 cameras to something else, you will not have enough with a 8 port switch or 2x4 port switch, you will need at least one extra port.

When you log in the web page you must input user, password, and data port, which is 8000 unless you change it. The web port (80) is used only for the web interface, all the data/video is sent through the data port (8000). And the only mobile app I have used is IVMS4500, the one from Hikvision, which works great for me. I do not know if there are any compatible apps from third parties.

lol

Hikvision port forwarding is as easy as it can get; one port for web (default 80) and one port for data (default 8000). Web port only needs to be forwarded if you are going to access the web interface (with Internet Explorer only). Forward both ports both in TCP and UDP (just to be sure, I am not 100% sure it is necessary, but I have done it this way since day one). I also always change port 80 to something else that is not the default web port. Now, if you are goint to access only from clients (iVMS4000 or 4200 on Windows, iVMS4200 on Mac, iVMS4500 on Android or iOS, etc) you really only would need one port forwarded. If you are installing dd-wrt on tp-link routers, you must know what you have in your hands. But, I would tell you to test the DVRs without all that VPN in the middle, just with a normal internet connection, with a normal router, with 80+8000 forwarded to the DVR IP. And the fact that it would work only in your PC, and not on any other PC, makes no sense at all (in case your computer is inside the network, the VPN, or something like that) Can't help with Android 4.2.0, since I use myself 4.0.3 and I have not tried anything newer. Also, check the firmware versions on your DVR to see if they are the same.

It would be good to know where you are from...

If you want to have a perfect vision with no light at all, you will need IR, either with the camera or external to the camera.

If you have an IP camera accessible with telnet from the outside world (or anything else that should not be) I think that the main problem is not that there is a default password to reset the camera, but how your network is set up. And as it has been said, this has nothing to do with ONVIF.

I-Visions web site sucks and isn't updated, so you can not trust the models they list there as being the latest. They have many great models for low light cameras (with no IR), the best I have been able to test msyelf. http://www.ivisioncctv.com

The best one I have seen/used on this size is this one: http://www.securame.com/mini-camara-ivmc608hsiiosd-ccd-sony-13-color-600-tvl-000025lux-28mm-pinhole-senseup-64x-rs485-osd-p-1002.html Sony 1/3" 600tvl, 0.00025lux with sense-up (starlight), OSD with many options, and even RS485 change all the settings remotely. In low light conditions it is just awesome. It has been a few years on the market already, so there might be better options already.