Co Ax or Ethernet HD System

[Earl Weiss]

I see some 1080 P Systems use Co Ax and some use Ethernet. Pros or cons for each? One pro is I can use existing cabling.

 

[MEP001]

Ethernet or IP cameras send a digital image which should have no noise and will be clearer. A lot also depends on the DVR.

 

[RAATCB]

Ethernet or IP cameras send a digital image which should have no noise and will be clearer. A lot also depends on the DVR.

Using Coxial Cable is very easy to use, install, and troubleshoot. 1080p @ 2.1 megapixel quality is more than enough for any car wash application. You are wasting time replacing existing coxial cable to cat5/6. Make sure purchase 1080p DVR and 1080 2.1 megapixel bullet/dome cameras.

 

[Earl Weiss]

Can't find the camera megapixel spec on this or how the spec "•1930x1088 Effective Pixels" translates to megapixels

http://www.costco.com/.product.1001...categorypageHorizontalTop|CategoryTopProducts

This one says 2 MP - Big difference from 2.1?
http://www.costco.com/Lorex-16-Channel-HD-Security-System-Bundles.product.100162999.html

This one 3mp - Big Dif?
http://www.costco.com/Swann-16-Chan...nd-8-3MP-HD-IP-Cameras.product.100144944.html

 

[RAATCB]

All systems are good. But 2tb hard drive recording at max frame rate will only give you about 2 days of recording. You need at least 6tb hard drive. Some DVRs will have space to add extra hard drives. You rather go buy a DVR with a 6tb hard drive.

 

[mjwalsh]

All systems are good. But 2tb hard drive recording at max frame rate will only give you about 2 days of recording. You need at least 6tb hard drive. Some DVRs will have space to add extra hard drives. You rather go buy a DVR with a 6tb hard drive.

Earl & others,

At some point as we transition to POE cameras with the proper Ethernet Switch we hope to have a nifty NAS dedicated for video storage. We are partially waiting for the price of multi terabyte storage to come down more. Hopefully the crime scene does not get so bad that the NAS needs to be set up as a ... more foolproof against a temporary hard drive failure ... RAID. I have been known to tell some loiterers & others that the cameras don't lie ... so that could make us feel more dependent on cameras all the time. The loiterers are still coming into this area from some of the high unemployment cities even though the price of oil is down.

mike walsh www.kingkoin.com

 

[MEP001]

1080P is 1920 x 1080, or about 2 million pixels, so a camera above that will not give a better recorded picture quality if the DVR records at that resolution. The only advantage to a higher megapixel is if you want to digitally zoom.

You probably won't be recording at full frame rate except for motion-triggered events, and most of your cameras likely won't ever need to be full frame rate, so you should get effectively two weeks of storage.

RAID setup is for PCs, not stand-alone DVRs. There are Network Access Storage drives that can use up to four hard drives in various RAID configurations, but that still does you no good if the DVR can't record to NAS.

 

[mjwalsh]

I have only 2 ip cameras at this point being used with Blue Iris Software for about 6 months now. To make this work for continuous viewing & recording ... I do have to have a local network computer on 24/7. I am pretty sure I can record these 2 cameras to my 5 Terabyte USB 3.0 external hard drive since I am doing it now to an internal sata drive. I really am not seeing at this point why a good NAS gigabit ethernet on the same local network as the PC won't allow a large number of cameras to record reliably. As far as Raid that could speed up the recording ability but it seems like covering the chance of one of the hard drive going bad (leaving potentially temporary no recording) would be more important. There are ethernet switches so that explains why a more proprietary hardware DVR is not always necessary.

I do know that there are port forwarding considerations & other issues with IP cameras so the jury could be still out on how good they are for us self service car washers for the long term.

 

[DiamondWash]

RG6 Siamese cable is the way to go I just ripped out a mile of Cat 6 I hate that stuff!!! then we installed RG6 Siamese cable and the owner couldn't be happier with the quality of the video. Got everything from RuggedCCTV

 

[MEP001]

I have only 2 ip cameras at this point being used with Blue Iris Software for about 6 months now. To make this work for continuous viewing & recording ... I do have to have a local network computer on 24/7. I am pretty sure I can record these 2 cameras to my 5 Terabyte USB 3.0 external hard drive since I am doing it now to an internal sata drive. I really am not seeing at this point why a good NAS gigabit ethernet on the same local network as the PC won't allow a large number of cameras to record reliably. As far as Raid that could speed up the recording ability but it seems like covering the chance of one of the hard drive going bad (leaving potentially temporary no recording) would be more important. There are ethernet switches so that explains why a more proprietary hardware DVR is not always necessary.

I do know that there are port forwarding considerations & other issues with IP cameras so the jury could be still out on how good they are for us self service car washers for the long term.

You're talking about IP cameras and mass storage. The subject at hand is coaxial-cabled cameras and a standalone DVR, which you would have known if you had looked at the links.

RAID has nothing to do with speeding up the recording ability of a camera. Certain RAID configurations can write slightly faster, but if a single hard drive can handle the datarate then any RAID setup intended for speed would be pointless.