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We use a company called Northern Video, although Nitek is sold through most security distributors such as Tri-Ed, ADI, SES, Systems Depot, etc.
The Nitek stuff isn't the cheapest, but it works, has good tech-support, and most important simplifies your camera installations.
As for cost overall, it is true that CAT5 and RG59 might be close in price and the Nitek baluns add cost to each camera, but the reward in flexibility, and in our case not having to home run RG59 back to the DVR has been significant. You can essentially get 4 cameras per CAT5 wire.
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And don't forget, if you ever decide to jump to IP cameras, your wire is already compatible.
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Originally posted by EV607797:
Like AnthonyH mentioned, it's best if you are going in there blind to go ahead with the Siamese cable. If the power pair isn't needed, it just won't be used. Come to think of it, most Siamese RG59 is 95% braid anyway, so you probably won't be able to buy it any other way.
22 gauge solid for basic RG59 with 95% braid should be fine unless the runs are unusually long. If so, then bump it up to 20 gauge. The 95% means the coverage of the braid, meaning that there are 5% worth of "holes" in the braid. That's fairly typical for CCTV, so any supplier will understand what you want. Funny the contractor didn't mention siamese cable. Come to think of it. We're pulling 18/2 to a "local" power supply. Our electricians will install an outlet close to each camera. Maybe the runs were too long to power with siamese cable. A couple of them are 300'. About the gauge and braiding issue, the contractor responded to an email saying "RG59 is only a 20 gauge, solid core." So, is RG59, RG59 because of the gauge of the center core or not? I know RG6 is bigger. Isn't it RG6 because the center core is bigger? And, I'm pretty sure I've seen RG59 with a stranded center core. :confused:
Candor - Intelligence - Good Will
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Originally posted by TexasTechnician:
Hm, this guy doesn't want to run the cable?
... Personally, unless I'm going to use existing cable that is in good shape I like to run my own cable. But when I do use existing cable or if the customer wants some of their people to run it I always add a note to the contract stating I won't be responsible for any cable problems in the future and that I will bill for my time to troubleshoot any problems that occur.
Out of curiosity, what reason is he giving for not wanting to run the cable? He made two proposals to us. One with him (his crew) installing the cable and one where we (me and my college student apprentice), install the cable. He wanted about $6,500 to install the cable, for about 20 cables. I argued for him doing it, although I knew it was expensive, just for the very reason you cite about possible finger pointing if there is a "cable" problem.
Candor - Intelligence - Good Will
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Originally posted by starion:
Just another thought, but our company has stopped using siamese and coax in favor of CAT5 and baluns for cameras. The benefits are many, and have paid off big time for us in terms of simplifying installations. That was an option. The contractor said it would cost more to use Cat5. Something about the cost of the added hardware. And, I kinda like the idea of the cameras not connecting into our data network at different various and sundry points.
Candor - Intelligence - Good Will
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Using Cat 6 cable and baluns does not mean connecting the cameras into your data network. You are just substituting the Cat 5 cable for the coaxial cable during part of the cable run.
Camera--RG59--Balun--CAT5--Balun--RG59--Monitor
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When you use the cat 5 and baluns, it does not connect to your network. It is just using the cat 5 cable as the transport medium, with baluns on each end to convert to BNC. I used a set on the last job I did, because I could not run a coax cable, but had several unused cat 5 cables in place. It just uses one pair for the video signal.
Jeff
Jeff Moss
Moss Communications
Computer Repair-Networking-Cabling
MBSWWYPBX, JGAE
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Originally posted by The Grim Reaper:
Using Cat 6 cable and baluns does not mean connecting the cameras into your data network. You are just substituting the Cat 5 cable for the coaxial cable during part of the cable run.
Camera--RG59--Balun--CAT5--Balun--RG59--Monitor Ok. Grima and jeff. Thanks for clearing that up.
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