dudu_georgescu

Is there a hybrid software that would support both a Hikvision DS-4208 card and some AXIS IP cameras? Thanks

1) Curious: why only standalone DVRs, do they have a particular advantage over the PC based systems? 2) I would have no clue where to buy a netvision dvr card and how it compares (pricewise and featurewise) with a hikvision or geovision card 3) How did the IW2000 (or whatever hikvisions' DVR software's name is) and netvisiondvr compare?

Which software do you think is better? Did you purchase a license for the Netvision software?

As far as I can see, the Geovision card is twice as expensive as the Hikvision card, and I am unable to make up the difference between the two cards. Here are the specs: 1) Hikvision: http://www.securityone.com.ar/product_pdf/HIKVISIONDS-42xxCompressionCard.pdf 2) Geovision: http://www.geovision.com.tw/english/Datasheet/Datasheet_4008.pdf Perhaps someone can shed some light as to why should I pay more for the Geovision card. As I can see, both cards can do 4QCIF recording, both have hardware compression, etc. But perhaps I am missing something Thanks!

Bugger! I have a JS-8RTA-D1 and was hopping to use ipads and itouches as home automation controls (with iports). That puts everything on ice. Also, the fact that the iphone app does not work is weird...as their GenIV surveillance software (for PCs) works ... I just tried it out ...

Question: any idea WHY it does not work? I have tried the surveillance software made for GenIV with a JS-8RTA-D1 DVR and it works. Wonder why wouldn't the IPhone app work ... Has anyone actually tried it?

Hi, I am using the a pair of the following balun: Muxlab 50032 (http://www.muxlab.com/assets/files/datasheets/VE_Quad_Video_Balun.pdf) to run 4 video signals through the same cat 5e cable (Belden cable). Unfortunately I am getting some signal interference (i.e. waves on the screen of the four cameras) significant enough to trigger the motion detection of the DVR each couple of seconds. If I disconnect any three cameras, then the remaining one works properly, no interference. My questions would be: (i) is this interference normal (because if that is the case, I would have no choice but run more cables and I hate drilling holes in-between floors) (ii) could it be a problem with the cable (good quality, Belden fast-cat 5e, rated for 350MHZ, works with no problem if I only use it for one camera) (iii) could it be a faulty balun (No shielding in between signals) (iv) could it be some static, and if I discharge it somehow, then everything would work fine (iv) some other thing Any kind of help would be greatly appreciated. George

Gentlemen, a question for you: do the IR illuminators automatically turn off during the day and on during the night?

Thank you Mike for all your help and patience Will let you know.

Yep, did that and more like tried to change the protocol, but to no avail. RMA time.

Yep, did exactly that, and I am getting with a baudrate of 2400 (near the receiver) - 0.462 V in neutral - bunch of numbers (in between 0.4 to 0.25) when attempting to move the camera With load, same numbers. In the attic, near the camera, same numbers. With or without the balun. At this point, I am mostly inclined to believe that something is wrong with the camera. Thanx! George

Hi Mike, When you mention "without the load" I infer that you have disconnected the PTZ camera, and then took the readings directly onto the pins of the DVR. Am I correct in my assumptions? Thanx! George

If I read correctly the RS 485 standard, "At the transmitter end the voltage difference should not be less than 1.5 Vdc and not exceed 5 Vdc." "At the receiver end the voltage difference should not be less than 0.2 Vdc." Well, apparently, my receiver has no chance of working. If the numbers you told me are correct, then not even yours is in a better shape lol --> however if the difference is the same on the receiver end, then yours has a sporting chance of working properly. Thanx! George P.S. 1 Of course, I have no clue how accurate these readings are without an osciloscope. P.S. 2 I keep reading about a resistor that needs to be mounted at the camera end in between the RS 485 wires (100 ohms) How accurate is this? Did you mount such a resistor?

Hi Mike, Sorry ... my mutimetre was broken, got a new one. I am doing the same readings as you do, but my results are quite different. I am reading 0.462 VDC when in neutral, when attempting to move the camera, I am getting a bunch of numbers, all of them in between 0.442 VDC to 0.418 VDC. So quite a difference. Do you think this is the problem? Thanx! George

Hi, I basically have two of these: http://www.ezcctv.com/attributes/cmplx_dt_sht/filename/Muxlab-500022.pdf one connected to the camera, and one connected to the DVR. Am I doing something wrong? Thanx! George