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ak357

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Posts posted by ak357

  1. Posted

    Hello everyone, my wife and I moved into our new home 3 years ago. We opted to prewire 4 outdoor security cameras with the builder. I knew nothing about about security systems. The builder used COAX not CAT6. Seems like anyone prewiring a system should have used CAT6.

     

    Anyhow, I want to purchase an Analogue HD 4 camera system rather than pulling CAT6 through the walls. Can you recommend a 4 camera 720/1080 system which will provide good image quality. 2 cameras pointed at the yard (coax exits the wall about 11' up from ground not eaves), 1 camera pointed at the driveway (coax exits eaves 12' up), and 1 camera for the front door (coax exits wall 7' up from ground). The Hikvision turbo hd looks nice but I cant find anywhere online that sells it. Budget of ~$1000 Canadian.

     

    Any advice is much appreciated. Thanks in advance, Curt

    4 CH TVI plus 4 cams and you done under $ 1000 CA

  6. Posted

    Many thanks,

     

    The cameras are two sentient mini wireless color cams (code N37CX) ( i did say bog standard) can be run on batteries or plugged in, frequency 2.4 ghz, the unit is H-264. It seems as though one cams signal is dominating the frequency, cause if i move one about, for a spit second you get two different pics but always reverts to the same pic on channel one and two. I'm 99% sure they are plugged in proper but their ain't much out there that gives you a 'clear and precise' step by step picture guide.

    Not too sure about the advice for ip addresses would do much as i ain't got has far as viewing them on the web yet.

    Would like to sort it out as i feel a passion coming on for this kind of stuff, but as per usual the initial problems tend to put a damper on...bit like stubbing my toe on the bed post just as the missis is giving me the all clear..

     

     

    You have standard Analog cameras

    All u can do try different channels

  8. Posted

    Trying to put together a high end system to monitor toolcutting on parts via outside the machine at the operators panel. Was looking at the Sentech STC-HD203DV camera and need a motorized zoom lens that can be controlled near the monitor that will be about 30 feet away. Will be purchasing some type of tube enclosure to keep coolant and debris out. Issue is trying to find the correct camera lens combo that will work together. We have a Computar H10Z0812AMSP-2 but do not believe this will work for us.

     

    Check Avigilon Box cameras

    Avail with 20 Optical motorized zoom

    just idea for you

  13. Posted

    Well, ak357, according to the toss, I can do exactly what I originally asked. (Have you read this entire post?) He said that I needed a DVR that has "monitor outputs for each channel" The question I posted today was that I couldn't find a DVR with a "monitor output for each channel" I am assuming that this is not a standard feature on every DVR system because the toss made sure to specify that that is what I needed. My only problem now is finding one. None of the DVR's I have found have this as a listed feature, that is why I was asking if this feature "monitor output for each channel" is called something else.

    What is your budget ?

    Where are u located ?

  19. Posted

    I dont know where you are getting your info but this should be a pretty simple (& cheap) setup. Ironically the cheapest & easiest way to do it WILL be to use a DVR. Ensure the DVR you get has monitor outputs for each channel.

     

    1) Cable from each camera location back to where ever your central monitor (& dvr) will be. You will also need a couple of power points here. The dvr output is fed to your central monitor & can view any or all cameras.

    2) Cable from each channel monitor point to each monitor screen. ( chan 1 cable to monitor 1, chan 2 cable to monitor 2 etc)

     

    You will end up with 4 monitors each displaying one camera and a central monitor that can display any single camera or all cameras together. PLUS the capability of recording if required.

    The cameras dont need to be anything special assuming there is good light in the dance rooms

    I would use TVI not Analog

  20. Posted

    Hi Guys

     

    I have a current project that involves 3 Offices about 5KM apart.

    We have successfully setup 5Ghz wireless bridges between the offices and the IP camera system works fine.

     

    Now for Phase 2, the main Office needs to be able to make public announcements to the remote offices through the existing Data network we have established.

     

    While i have experience installing PA systems but never over data network (just audio cables, etc).

     

    So I was wondering if there's a way I can have traditional PA system "ride" on the data network? Perhaps using an Analog-Digital audio card ?

     

    Or is there a PA system that's IP based?

     

    Or how about using IP PABX system instead?

     

    Or is there a software where i can simply have client computers on each office attached to loud speakers?

     

     

    I'm not that familiar w/ audio stuff so I'm lookin for some ideas and guidance from the community.

     

    Thanks guys

    What cameras and VMS are u using ?

     

    Number of IP cams has Audio In/Audio Out

    then VMS/Comp out

  21. Posted

    let me see if I can assist a little and I am not promoting or endorsing any link I post just simply doing some

    quick googling to give you some info links.

     

    Q's:

    1- How to know from the datasheet of the camera if it's analog or digital?

    If the camera has only a BNC Coax port it's analog, if the resolution states 420TVL,

    540TVL, 600TVL, D1, 4CIF, 960H, SDI, TVI, CVI, AHD it's analog. 720P (1 megapixel-mp), 1080p (2mp),

    3mp, 5mp, 8mp (4K), etc.. are going to be IP and they will have an Ethernet RJ45 connection on them

     

    2- Is this a model of camera or a company ( NKF )?

    What Rachel said

     

    3- Can we use CAT6 with analog camera ? if yes why in some cases we are using COAX ?

    Cat5 or 6 cabling is already prewired, use a balun or possible longer distances

    some info - http://tinyurl.com/num3spr

     

    4- why to use the Video Tx and Rx for the analog cameras and why we connect them to fiber optic cable, is it

    because the long distances?

    Fiber definitely allows for longer distances and less noise interference more info - http://tinyurl.com/o82xhzp

     

    5- Can we use the COAX for the long distance?

    how long is long to you? usually RG59 cable goes about 600-700ft and RG6 like 1000ft

     

    6- when to use the RJ 45 connector?

    for what? analog cctv? refer back to question 3? or when to use IP cameras? better resolutions and options.

     

    7- How they calculate the network bandwidth? which calculations and formulas they used?depending on what?

    typically for analog going to DVR's I don't think you need to worry about bandwidth to the DVR and the cameras will

    probably do anywhere from 100-800kbps. IP camera bandwidth to the recording server is dependent on the resolution

    of the camera, frame rate, compression (H.264, MJPEG, MPEG4), and image quality. Typically 1-5 megapixel type cameras

    could do anywhere from 500kbps to 12Mbps roughly of bandwidth each back to the recording server.

     

    8- Is SFP in switches 1 GbPs or 10 Gbps?

    Small Form Factor Pluggable (SFP) is generally 1 Gigabit or there are some 100Mbps Fiber modules

    SFP+ is for 10 Gigabit. SFPs come in multimode fiber (MMF) or singlemode (SMF) so, you do need to know which

    type of cabling is being run or the distances you need to go. Using MMF you can go 500meters on 50 micron cabling or 220m if

    using 62.5 micron. Need to go farther look at SMF. 100mbps fiber generally goes 2km on multimode.

    SFP info link - http://tinyurl.com/yk9fznu

     

     

    9- why we connecting the encoder to the industrial switch with CAT6

    If you are talking about an IP based encoder with analog/coax ports on it then it's because it's

    an IP device. The analog signals will be converted to digital, travel across the network through the Ethernet switch

    and be recording to a server and viewed with software. An industrial switch is used if it's a temperature issue, outside issue, or something

    that needs more protection then just a regular indoor commercial switch.

     

    hope this helps

    All my customers will be given your ph number

  23. Posted

    I'm Andres and I work with wireless networks, about 15 years ago

    on wISP market, using Mikrotik and Ubiquiti.

     

    And 2 or 3 years started working with CCTV and IP Cameras.

     

    I've done some projects city-urban-security with IP Avigilon and Dahua

    but mostly with CCTV .

     

    My website is http://www.netpro-ar.com

    and we are on Bahia Blanca , Argentina.

     

    Best regards...!!

    AHD and 960 sucks big time

     

    Stick with Avigilon and/or Dahua

  25. Posted

    Running different battery types in series can be tricky, as the current will be limited by the battery with the highest internal resistance, but it's easy enough to test. You won't get a lot of current out of a setup like that.

     

    That said, most 9V batteries contain 6 1.5V AAAA batteries, so you can probably do it with no problem.

    http://www.instructables.com/id/how-to-open-a-9v-battery/

     

    A 9V battery typically can supply around 500mA, for 4.5W, which is enough to run many cams. It will only last an hour or less, depending on exactly what brand and type you buy.

     

    You'd be better off with a set of 6 AA batteries in a holder - more current, more run time, not much bigger. A good quality set of AAs will run the same 500 mA (6W) for more like 2-3 hours.

     

    .

    12 Volt battery from cordless Drill may be

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