On Fri, Oct 3, 2014 at 10:28 AM, Chuck Anderson <[email protected]> wrote: >> A DC voltmeter with RJ-45 modular plug on a pigtail should let you >> check for PoE ? > > No, power won't be applied unless the PSE (power-sourcing equipment) > detects a PD (powered device) at the far end. A simple resistor > should allow that to happen though.
So an RJ-45 pigtail for PoE testing with a VOM needs a 25 kΩ bleeder in shunt (or in series on mA scale). Good to know. Thanks. (Alternatively, the periodic PSE DC pulse checking for new PD current draw would be seen on an O-scope when setting up for TDR, or otherwise detected with DSP sampling.) -- Bill Ricker [email protected] https://www.linkedin.com/in/n1vux _______________________________________________ Discuss mailing list [email protected] http://lists.blu.org/mailman/listinfo/discuss
