How to add a camera that requires 24v to a built-in POE NVR?

tubac

tubac

Pulling my weight
Aug 22, 2014
267
113
15 minutes from Mexico
I have a new Dahua OEM16 channel w/16 built in Poe switch and want to add a Dahua ptz that requires 24v to power. How would I wire this using a 24v Poe+ injector?
Should I plug in the injector into the built in switch?
NVR
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PTZ

Thanks
Tubac
 
I dont know the answer but I do see the NVR spec says
PoE:Max 25.5w for single port, 130w in total, and max power consumption on the PTZ is 22w
 
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The specs you linked state "DC 12V/3A, PoE+(802.3at) ", no mention of "24v".

I'd get a good PoE+(802.3at) injector, power it (the PTZ) over some CAT-5e Ethernet up to 150 ft. or 23 AWG CAT-6 if over 150 ft.
Run the LAN side of the injector (DATA IN) right into the NVR's POE port.

So "yes'" on your question "...Should I plug in the injector into the built in switch? " BUT.... it's a PoE+(802.3at) injector, not 24v.

Unless someone else has a better recommendation, this one here is highly rated.
 
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TonyR said:
The specs you linked state "DC 12V/3A, PoE+(802.3at) ", no mention of "24v".

I'd get a good PoE+(802.3at) injector, power it over some CAT-5e Ethernet up to 150 ft. or 23 AWG CAT-6 if over 150 ft.
Run the LAN side of the injector (DATA IN) right into the NVR's POE port.

So "yes'" on your question "...Should I plug in the injector into the built in switch? " BUT.... it's a PoE+(802.3at) injector, not 24v.

Unless someone else has a better recommendation, this one here is highly rated.
Click to expand...
I will give it a try. I presupposed that Poe+ meant 24 v . I guess I was wrong.
Thank you for your input ! I will let you know how it goes...
 
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just to be clear, the cam requires PoE+ (802.3at -- more than 15W) ONLY if/when using the heater
(your model may not even have it, and you probably don't need it in Mexico, unless you're at extreme altitude...)

without the heater, regular PoE (802.3af) will be fine.
 
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pozzello said:
just to be clear, the cam requires PoE+ (802.3at -- more than 15W) ONLY if/when using the heater
(your model may not even have it, and you probably don't need it in Mexico, unless you're at extreme altitude...)

without the heater, regular PoE (802.3af) will be fine.
Click to expand...
You were right. Works a treat plugged into the built-in Poe on the NVR. All ptz functions work without issue . No lag. Very happy camper, thanks again!

Tubac
 
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