Power over Cable

[user845984]

Hi

I am trying to commission an old 7761-CM the client has sourced, apparently taken from a commercial environment, in a large home environment but am unclear on the power requirement.

I can see that it accepts power over coaxial cable, 40-90v AC but I am not a commercial installer so am unsure how to "inject" that into the coaxial cable. The AP will not be used as a cable modem but connected via CAT6 to a ZoneDirector.

Can anyone help me understand what I need to do to get power to it without blow it, or myself, up?

Marc

[slasher_6634965]

I actually purchased a 7761-CM on eBay and managed to use it as a really nice access point. Before i had to use 3 different access points to cover my not so large home, now 7761-cm does the job by itself. Al I needed was a 48V transformer wired to a regular coax cable. I am not using it as a cable modem so I did not have to inject power over cable in it, just used the coax input for power. 

[user845984]

May I ask what model of transformer you used? I can't find anything outputing 40-90V AC...

Marc

[slasher_6634965]

Me neither, they are hard to find. I ended up using two 24v transformers connected in series.

[slasher_6634965]

Something like this will work too, but it's a bit of overkill 🙂 But it will certainly work.

http://www.ebay.com/itm/DIY-Audio-Amp...