Timeline for Will security system wiring cause interference in data cables?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Aug 7, 2012 at 21:26 | comment | added | Brad Gilbert | @Bob Gigabit Ethernet requires all 4 pairs. | |
| Aug 7, 2012 at 19:36 | comment | added | Bob | I'll go a step further: you could even run the security signals WITHIN the CAT5 cables, using pairs 4/5 and 7/8! I've seen active POTS phone lines run over them without issue, and that would be a lot more potential interference. But you probably shouldn't. | |
| Aug 7, 2012 at 13:40 | comment | added | Piotr Kula | DC current does not pose much of a problem. Power over Ethernet proves this.If you start to run AC power it starts to radiate; the higher the voltage 110vac/220vac will usually cause issues when high power devices run. eg microwave/ fridge/etc; 400vac/600vac or higher you should always separate data from power. | |
| Aug 7, 2012 at 10:06 | vote | accept | Steve | ||
| Aug 7, 2012 at 2:01 | comment | added | Niall C.♦ | @Steve: two of the security wires are for power, but it will be DC, probably around 12V and on the order of 10mA current draw. There'd be a small change in current as the sensor's switch opens and closes but not enough to cause any interference. | |
| Aug 7, 2012 at 0:43 | comment | added | Steve | Are motion sensors powered by the security wire? If so, does this change anything? | |
| Aug 7, 2012 at 0:18 | history | edited | Niall C.♦ | CC BY-SA 3.0 |
added 182 characters in body
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| Aug 7, 2012 at 0:08 | history | answered | Niall C.♦ | CC BY-SA 3.0 |