robert 0 Posted January 30, 2010 Samsung SIR-4160, 12vdc, 7.8w, 650mA with IR leds On. If I use passive balun and 3 pairs of Cat5 for power - what would be max run for power? Will this actually work or those 3 pairs will melt Share this post Link to post Share on other sites
Soundy 1 Posted January 31, 2010 Samsung SIR-4160, 12vdc, 7.8w, 650mA with IR leds On. If I use passive balun and 3 pairs of Cat5 for power - what would be max run for power? Will this actually work or those 3 pairs will melt Maximum run will vary a little bit depending on the ACTUAL output voltage of the power supply - a non-regulated supply will realistically be producing something in the 16.5VDC range, which at 300ft/100m will give you a little over 1V of loss. Share this post Link to post Share on other sites
robert 0 Posted January 31, 2010 I have been looking at many of them, they all are 12v excatly. http://cgi.ebay.co.uk/REGULATED-CCTV-BOXED-POWER-SUPPLY-UNIT-12V-DC-5AMP-9-CH_W0QQitemZ110457924229QQcmdZViewItemQQimsxq20091117?IMSfp=TL091117181002r447 Share this post Link to post Share on other sites
Soundy 1 Posted January 31, 2010 Even at 100'/30m you should only see about .3V drop, so you're probably okay, depending on how sensitive the cameras are to under-voltage. Three pairs of Cat5 is about the equivalent of 18ga. Share this post Link to post Share on other sites
robert 0 Posted January 31, 2010 Even at 100'/30m you should only see about .3V drop, so you're probably okay, depending on how sensitive the cameras are to under-voltage. Three pairs of Cat5 is about the equivalent of 18ga. 30m - thats very short how to get some 100m ? Share this post Link to post Share on other sites
cglaeser 0 Posted March 2, 2010 Samsung SIR-4160, 12vdc, 7.8w, 650mA with IR leds On. What are your impressions of the SIR-4160? Best, Christopher Share this post Link to post Share on other sites
robert 0 Posted March 3, 2010 Not tried yet, but I have heard that built in IR leds have problems called "ghosting" and "spider". God knows what does it mean. Share this post Link to post Share on other sites
cglaeser 0 Posted March 29, 2010 Not tried yet, but I have heard that built in IR leds have problems called "ghosting" and "spider". God knows what does it mean. Did you complete the install of the 4160? Best, Christopher Share this post Link to post Share on other sites
robert 0 Posted March 29, 2010 Not tried yet, but I have heard that built in IR leds have problems called "ghosting" and "spider". God knows what does it mean. Did you complete the install of the 4160? Best, Christopher I didnt install them at the end. Share this post Link to post Share on other sites
