Power over Cable

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  • Updated 2 years ago
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
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MarcN

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Posted 2 years ago

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SorinM

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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. 
(Edited)
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MarcN

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

Marc
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SorinM

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

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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...
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SorinM

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And I posted a review detailing how a 7761-CM can be configured, powered and used in case anybody else has the same question. I have to admit I like it a lot, it really covers my house very well, something that never happened before.

This should cover other similar access points as well.

http://reviewhorizon.com/2016/01/revi...
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Sean

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