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Joined: May 2005
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I'm using a 16 channel CD-Rw with Lan functions.
So if i run the coax and the 12vDC next to each other up the wall cavity to the cameras. I shouldn't have any problems, aslong as i keep at least a 30cm away from 240V AC power. Or do you reccomend run a conduit down the wall cavity as insulation?
No part of the cables will be exposed to weather conditions.
Brite Spark.
PS; Hope the install goes well. Let us no how is goes.
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Joined: May 2005
Posts: 54
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Britespark,
just got back to the office, me and my crew just finished that little CCTV project and i am proud to say it went very well!!
lots ofcable trunking (aka raceway) all over the place, (very tidy i might add).
the client decided on 8 cameras outside and eight cameras inside, all well within the reach of the system,
one monitor to the front door of the club, one monitor to the bar area, and the main one, a rather large 21" monitor in the main office together with the DVR and main power supplies.
all pictures are perfect, with a little adustment by yours truly, to what the client wanted to see.
the DVR i used was the COP one order no: 15 - VT16 - cd/rw.
what a good bit of kit!!!
we will be using a few more of these in the future, my IT man came in and set up the Router and LAN coonection.
and the best of all the client gave me the cheque!!!
a little thing if you are going to be doing a lot of CCTV get yourself a test monitor, they are a life saver, (and time saver as well).
COP order no; 15 - MC035K £148.90 PLUS VAT
bye for now. i am going home now, as i am a little bit tired.!!!
Britspark
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Joined: Jul 2002
Posts: 8,443 Likes: 3
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Britespark,
You could tape the 12VDC wires to the coax and have no worries at all.
As far as 240VAC goes, as long as your wires cross the Mains wires at 90 degrees there shouldn't be a problem.
Induced voltage really only occurs where Mains and lower voltage cables run alongside each other for an appreciable distance.
As far as bend radii goes, RG-59 wins though.
And don't forget to Heatshrink your connectors, moisture is a killer.
[This message has been edited by Trumpy (edited 11-04-2005).]
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Joined: May 2005
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Hey there, sorry i havent posted for a while i've been on holidays.
Good to see the install went well Britspark.
Since i'm a little experienced now with CCTV i'm going to do an install at my house. I'm using a 16 channel DVR - Top of the range, 15-DVR16SA CR-RW.
These are the cams i'm using:
3 x 15-CD351 - 12V DC ±10% 3.8W(Max) @ 119ma / 320ma(IR on)
1 x 15-CD47CAI - 12V DC ±10% 8W(Max) @ 200ma / 670ma(IR on)
2 x 15-CM35VAI - DC12V @ 100mA(IR off) / 160mA(IR on)
All the cams are IR, apparently they draw quite a bit of current.
How do you reccommend i power the cams?
Through a central PSU or individual PSU's?
Runs again will not be more than 30 metres for both coax and 0.75 2 core flex.
Brite Spark.
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Joined: Jul 2002
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BriteSpark,
Would Line-powering be feasible?.
As in sending 12VDC down the Coax, via a Capacitive link?.
Some of the KingRay gear here will allow you to insert a Maximum of 1.2A of voltages up to 17.5VDC.
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Joined: May 2005
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Britespark
i would reccommend feeding each camera/ir set up from one power supply unit per camera, the loading is quite high so this is the best way to do it.
Britspark
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Joined: Dec 2004
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Also to avoid the cameras interfering with each other, use separate non-grounded supplies for each camera.
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Posts: 32
Joined: June 2004
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