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ak357

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Posts posted by ak357

  1. Posted

    I've only purchased Axis (4 206s, 3 241Qs, 211A, 233D) and an IQEye 703 so far. They have all been rock solid with no issues so far in 6 months.

     

    I have avoided the smaller brands so far because I needed to make sure everything just worked and it seemed like the other brands had random software issues, or low quality images, etc. I have been looking for other options that can be just as reliable and hopefully a bit cheaper to make further expansion easier.

     

    I read jhonovich's review of ACTi and would like to hear if anyone else likes and recommends ACTi, and what cameras specifically you like. I'm also thinking about getting an Arecont to try out; metafizx, let me know what you think of yours when you get it.

     

    I tried ACTI ACM 4200 and ACM 1231 did not like both

    return back to distrubutor

    in my opinion poor noisy pix

    was talking to ACTI tech support and prove to them it is not acceptable

     

    I can get better pix on certain Vivotek models (not mega pix)

    talking about reg day time shots

  7. Posted

    Can someone tell me why they say that it can record in 4CIF and the next sentence they say it´s D1?

    ("It rivals over its predecessor (RTA) with double the recording resolution at full D1")

    Not a huge difference but still not the same. And the name of the DVR includes D1.

     

    D1 = 704x480 in the ntsc video standard. 720x480 = the ntsc DVD video standard.

     

    quote]

     

    Can you tell me please where in NTSC standard it says 704x480 ?

    Thanks

  9. Posted

    I'm trying to determine whether using PoE 802.3af to power a ptz IP camera reduces the connection speed of the camera down to 10mb from 100mb? In other words, does using one of the twisted pairs for DC reduce the number of twisted pairs avail for data since 100mb needs all 4 pairs? Or does the standard simply piggyback DC and data down one of the twisted pairs?

     

    Thanks

     

    The IEEE 802.3af standard uses the same "data" pairs as ethernet, leaving the "spare" pairs free. This PoE adds DC power to the data pairs using signal transformers, and pickes off power at the far end the same way. A comprehensive set of technical standards for Power Sourcing Equipment (PSE) and Powered Devices (PD) create an "idiot proof" system protected from shorted wiring, polarity reversal, or accidentally plugging in non-PoE equipment. IEEE 802.3af is technically complex and best implemented with power management chips specially designed for the purpose, supplied by Dallas, Maxim, Linear Technology, Texas Instruments, and others, that are intended to be embedded into the PoE devices themselves.

     

    The new IEEE 802.3af standard alternatively allows the "spare" wire pairs to be energized, to be compatible with both types of wiring. You may mix 802.3af with older or homebrew PoE devices, but the result may not be "idiot proof". If your mixed network has only PoE sources that are IEEE 802.3af compliant, your mixed network is pretty safe from damage, but older devices may or may not operate correctly. This mixed PoE allows brands to migrate to the common standard.

  12. Posted

    .

     

    I bought it from the manufacturer.

     

     

    ICrealtime are not manufacturer

    unit made in china

    u want me to give adress ?

     

    Yes please.

     

    check your inbox plz

     

    I almost chopped my LCD screen in half because of your avatar!

    hope u like it

  15. Posted

    Well I called them up after reading all the good post in this forum about there equipment and they said that they manufactured there equipment and that the founder of the company was some guy who is involved in the development of new technology for CCTV.

     

    He went on to say a whole lot more ear candy, then we did a remote demo for which he insisted I used the DVR Manager Center and not the Client Software or the Web Browser even tough I mentioned that I will like to demo the unit the same way my customers will be using it which is mainly through a Web Browser which is a high point of the sale.

     

    "REMOTE MONITORING FROM ANYWHERE IN THE WORLD."

    'As long as you have a Computer and High speed Internet.'

     

    So I gave in and ordered a Demo. My exact words was I will like to Demo the best unit you have to offer.

     

    He told me about the Flex R-30M which is the R-30 with built in matrix.

     

    Even tough he didn't send the unit I ordered I really didn't mind, since I was so excited to finally have put my hands on a "Full D1 30Fps Per Channel DVR I just couldn't wait to take it out and set it up.

     

     

    The really mest up part of this, is that I stayed home to setup this unit and missed my sons game and had a little fight with the wife about it

     

    200711715341203.jpg

     

     

    this is pix of model which according to true manufacturer should give D1

    res at all 16 ch real time

  21. Posted

    I did not know that you could run that much power from a poe system. Does anyone know if you can run like a double latch retraction device with POE?

     

    Clause 33 of IEEE 802.3-2005 (commonly referred to as IEEE 802.3af)

     

    selectable current of 10–400 mA subject to a maximum load power of 15.40 W.

    Only about 12.95 W are available after counting cable losses

  23. Posted

    Never judge a camera by the picture you get over the network.

     

    Yea I found that out tonight

     

    Well I recorded some video but the file straight from my camcorder is 168mb zipped, so I converted it to h.264 and lost a little quality but the file is now 28mb. Here is the link if anyones interested:

     

    http://www.mediafire.com/?nt0y5trofzi

     

    Here's a link for a few seconds at full quality (keep in mind its 62mb)

     

    http://www.mediafire.com/?zztbhzzbsno

     

    Thanks

     

    wooow 4 sec of video about 60 meg with bitrate of 129k

    meaning 1 sec about 15 meg so much better then blueray

    u use SnagIt Screen Capture Software right ?

    what tools do u use to convert ?

    thx for samples

  24. Posted

    if you go megapixel, consider the iqeye sentinel series (http://www.iqeye.com/iqeyesentinelseries.html) which is designed for the outdoors

     

    Seaports are generally quite big so you are probably best served with megapixel cameras as it will cut down total camera count, reduce installation costs and provide broader coverage

     

    you should go gigabit for 79 ip cameras, let's say they are megapixel and stream at 5 Mb/s, that's a total of almost 400 Mb/s

     

    just some initial thoughts, let me know if you have follow up questions or comments

     

    just to note even 1.3megapix stream at least 10Mb/s +

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