gb5102

Plenum ceiling is when they use the area above the drop ceiling for the HVAC system's air return. http://en.wikipedia.org/wiki/Plenum_space Make sure your cables are rated for the intended application, most patch cables aren't rated. NEC article 800 applies, also 725 since PoE is class-2 power-limited circuit. Cable ratings reference: http://www.hca.hitachi-cable.com/products/hcm/faq/data/NEC-UL-hierarchy.pdf

Forgot to add: I would be cautious buying GV cams thru amazon, they are on the un-authorized resellers list http://www.usavisionsys.com/?page_id=120

Good quality cat5e will be fine, my cable of choice for cams is Berk-Tek LanMark-350(Made in USA!). Cat6 is definitely higher performing cable, but as long as your cable/crimps/distances/etc are within spec, you won't see any difference. If the cable is being run in a plenum space make sure you get CMP rated cable. Also if you are 'green' at terminating your own cables, check out EZ-RJ45 connectors: http://www.ezrj45.com/ezrj45plugs.php You need their crimper but they definitely make it easy and quick for a beginner to make a proper crimp. I learned with those, once I got the feel for it i 'graduated' to standard RJ45s. And make sure you don't cheap out on the connectors, there is some pretty bad ones out there- shatter when you crimp, contacts bend over instead of down...etc. AMP/Tyco is good...

RUN FAR AWAY FROM THIS CABLE!!!! Its copper-clad aluminum, not solid copper. Absolute garbage...and not allowed by code. Get a reputable brand like commscope, belden, berk-tek, etc. I would buy the cable from an electrical/datacom supply house

1. NVR will centralize the access to the video, so definitely much easier to manage compared to not having NVR and using local SD cards installed in each cam for recording 2. not sure what you mean here 3. I personally would use GV-NVR, it is a solid system with plenty of customization options, there may be a learning curve on your first install, but really its not too bad and you seem to be intelligent... 4. IP cams would connect to PoE switch, NVR would connect to the switch also. I would use a dedicated network for the cams, either VLAN or completely seperate 5. I have not had a real need for this feature though I have played with it and found SD card recording to be unreliable with GV cams, specifically I have seen the filesystem on the card become corrupted after a power outage, however I have not tested it on the most recent firmware so maybe its fixed.

If you are using all Geovision IP cams, you do not need a license dongle or any PCI cards to run GV-NVR software, just download and install it. The only time you need license is if you want to use non-Geo cams with the GV-NVR.

Also, just a heads up, there is a setting for h264 codec called 'noise detection to reduce file size' which basically 'blurs' areas of the image where it sees a lot of noise. It does save space, but i find the effect to be really annoying, also it causes loss of video information so you could easily miss something important, IMO.

Yes, that's the right screen, click the green arrow next to "Round-the-clock" No way to set CBR...

Its normal for nighttime recordings to be larger with many cams since there is more 'noise' in the image at night, but your file sizes are definitely excessive. If you have really cheap/noisy cams, that's probably the root cause, but there's a few things to check on the DVR. -make sure you are using h264 codec, its much more efficient than older gv-mpeg4 codec(in the 'camera configure' menu) -set the 'noise tolerance' setting to high to limit false motion detection(in the 'camera configure' menu) -you can also enable the low-pass filter(in the 'video analysis' menu) -if your cameras are super noisy at night you might just have to live with it or replace them with something better. If cams have a setup menu or dip-switches you might be able to tweak some settings there to improve the nighttime image Let me know if this helps!

First, where did you get the GV-800B? Authorized distributor? Please don't say aliexpress...there's counterfeits on the market that are simply garbage, so if that's your problem, i'd just give up now... Otherwise, remove the PNY video card, see if its stable using the Intel on-board graphics. It looks like your Optiplex only has a 250W power supply which may be undersized to power both the GeForce and GV-800B. You should have a minimum of a 350W power supply with at least 20-amps on the 12V rail.

Missed the 'C50' part...how about this one? http://www.ebay.com/itm/1x-AD0412MX-C50-ADDA-FAN-6700-RPM-40-x-40-x-20-mm-8-3-CFM-12-V-Hypro-Bearing-DC-/350997136996

http://www.mouser.com/ProductDetail/ADDA/AD0412MX-K90-LF/?qs=um4kG1jfMZ0YaRjjRy2mpg== Says they are in stock, minimum order = (1)

Sometimes the function 'shockwave199' mentioned is called 'key frame' or 'GOP' or 'Group of Pictures', but same here- I'm not sure if applies to HD-SDI. Keyframe is associated with h.264 encoding, I would guess the DVR compresses the SDI stream using h.264....but I have never seen this setting cause the artifacts you describe. Can you post a screenshot?

Sweet! Glad to hear you got it fixed! Never had to repair a cam like this, but the cams I've seen look like they use normal cat5 'patch cable' which is definitely NOT normally what you want to punch-down, but I have done it in a pinch in a different scenario and had no issue. Otherwise you likely could have crimped on an RJ45 plug, or worst case scenario you could have used a board-mount RJ45 jack(like what you'd see soldered to a circuit board)

also if your camera is in fact 802.3af compliant, the 12v rating you are seeing is for the secondary power connection if you power it via a separate power cable and not the ethernet connection.

option 1 is a standard 802.3af PoE midspan injector. 'True' PoE devices adhere to the 802.3af standard and run on 48v DC @ up to 15-watts. There is also 802.3at Hi-Power standard which can deliver 25-50w depending on the implementation. Option 2 I don't know....is it advertised as 802.3af compliant? If not then its probably made for specific 'non-standard' type powered devices such as Ubiquiti NanoStation, Mikrotik, etc. Option 3 just uses normal 'wall-wart' power supply and piggybacks it onto 2 unused pairs in the cable(only work with 10/100, no GigE). They might work for maybe like a 30' wire run but any longer I think you will have too much voltage drop If your camera is 802.3af PoE, then your best/safest option is 802.3af compliant power source.

If you are trying to power it via the ethernet cable you need a 48v 802.3af-compliant power source. Option 1. Those other 12v passive inserters will likely fry your camera(they are not PoE/802.3af)

my GUESS would be: Red = Power+ Blue = Video+ Black = Ground (shared video and power) But again its a guess based on the fact that USUALLY red wire is power+. If you can open the cam you might find labels stamped on the PCB near the point where the wires attach to the board. Can you give the model# of cam?

I agree with 'finalwish' - try to straighten the pins first. I'd try a safety pin or small nail and bend the tip into an 'L' shape to get under the pins and pry them up. If that doesent work then replace with a keystone.

Interesting post! I encounter this carelessness all the time- I see WAY too many diy and also 'pro' installs online with default pass. Strong/unique password should be COMMON SENSE these days!!

Great warning/advice! Speaking of lazy, I can't tell you how many dvr's I've come across(DIY and 'pro' installs...) that someone put on the web without even changing the DEFAULT login info...way too common

you got scammed. There is NO WAY you will EVER find a legit GV-800-16 for $85

where did you order your card? gv-800v4 (aka GV-800A) is old card, you want GV-800B card. also i don't believe you can blame anyone for the compatibility issues. its the state of current technology- things change/evolve and in the process certain things become obsolete. 'old' v4 card uses 'old' chipset. however, v4/A-series cards do work on modern chipsets which feature native PCI such as intel B75. Most modern chipsets do not have built-in/native PCI and rely on a bridge chip of some sort.

No experience with those cams, but looking at the camera manual it sounds like if you set the Protocol to HTTP under Local Configuration>Live View Parameters menu then you will only need to forward the single HTTP port(default is port 80). if the above does in fact work, then you can leave the cams set to default port 80, and use different outside port which directs to the correct 'inside' port and 'inside' ip address. So you would then connect by opening a web browser and navigating to or whatever... According to manual the e3000 router has configuration options for external port and internal port, so this should work. Page 34: http://downloads.linksys.com/downloads/userguide/Linksys_E3000_UG_USA_V10_NC-WEB.pdf

probably the best thing you could do with what you have is to use non-standard ports on the outside. Port 80 for example is a common port that script kiddies would be scanning for. At minimum I would set up port forwarding in your router to forward(for example) external port 21080 to internal port 80. Then you would connect to the cam using(example) from the outside.