Recommend a PoE Splitter That Can Output 30W+

[CaptainCalculon]

Since the DH-SD6C3425GB-HNR-A-PV1 TiOC 2.0 PTZ PoE+ camera doesn't come with a built-in mic but bare wires for audio input,
I went about and setup an external mic using the following as a template:

https://ipcamtalk.com/attachments/wires1-jpg.89709/

When I went onto power on the camera and the mic, I found that the PoE splitter I was using initially wasn't outputting enough power.
The mic switched on, but the camera refused to power on.

This was the PoE splitter used initially:

https://www.amazon.com.au/Splitter-Ethernet-Adapter-5-5x2-1mm-Waterproof/dp/B0BLG7D9QL/

It was absolute rubbish since it also introduced a lot of noise.

Next I tried this one:

https://www.amazon.com.au/jingfei-PS5712TG-Ethernet-Splitter-IEEE802-3/dp/B0BR4R5G94/

Output 12V/2A MAX
Standard IEEE802.3 /at(30W)
I am not sure why they falsely rate it as 30W, when max power output is 24W (W = V x I).

After trying another el-cheapo PoE splitter which also fell short on output power, I tried the slightly more expensive Edimax model (GP-101ST):

https://www.amazon.com.au/Edimax-Pro-GP-101ST-Gigabit-PoE-Splitter/dp/B06WLHZ5QX/

Again, not enough power.

I had my cabler run a second PoE cable around this camera for a PoE Horn Speaker.
He decided to use this second CAT6A cable for tapping the power from it (using the Edimax PoE splitter) to power the mic.

While the above solution works, I would like to free up the second CAT6A cable for its intended purpose.

TL;DR: Please, I need your recommendation for a PoE splitter that can output at least 30W so that both an external mic and the DH-SD6C3425GB-HNR-A-PV1 TiOC 2.0 PTZ camera can be powered from the splitter's DC barrel plug using a 2-way DC power splitter.

 

[Teken]

Since the DH-SD6C3425GB-HNR-A-PV1 TiOC 2.0 PTZ PoE+ camera doesn't come with a built-in mic but bare wires for audio input,
I went about and setup an external mic using the following as a template:

https://ipcamtalk.com/attachments/wires1-jpg.89709/

When I went onto power on the camera and the mic, I found that the PoE splitter I was using initially wasn't outputting enough power.
The mic switched on, but the camera refused to power on.

This was the PoE splitter used initially:

https://www.amazon.com.au/Splitter-Ethernet-Adapter-5-5x2-1mm-Waterproof/dp/B0BLG7D9QL/

It was absolute rubbish since it also introduced a lot of noise.

Next I tried this one:

https://www.amazon.com.au/jingfei-PS5712TG-Ethernet-Splitter-IEEE802-3/dp/B0BR4R5G94/

Output 12V/2A MAX
Standard IEEE802.3 /at(30W)
I am not sure why they falsely rate it as 30W, when max power output is 24W (W = V x I).

After trying another el-cheapo PoE splitter which also fell short on output power, I tried the slightly more expensive Edimax model (GP-101ST):

https://www.amazon.com.au/Edimax-Pro-GP-101ST-Gigabit-PoE-Splitter/dp/B06WLHZ5QX/

Again, not enough power.

I had my cabler run a second PoE cable around this camera for a PoE Horn Speaker.
He decided to use this second CAT6A cable for tapping the power from it (using the Edimax PoE splitter) to power the mic.

While the above solution works, I would like to free up the second CAT6A cable for its intended purpose.

TL;DR: Please, I need your recommendation for a PoE splitter that can output at least 30W so that both an external mic and the DH-SD6C3425GB-HNR-A-PV1 TiOC 2.0 PTZ camera can be powered from the splitter's DC barrel plug using a 2-way DC power splitter.

Im going to keep this simply because none of the solutions you’re using is going to work. First, what brand and model POE Switch is in use now?

What is the measured VDC at the camera? How long is the cable run and what is the diameter of the Ethernet cable in use?

You could skip all of this heartache by installing a POE Injector that actually provides POE+ / POE++ at the switch. I’m confident that once that POE+ injector is in place both the camera and microphone will operate just fine.

Obviously, I’ll state this assumes the rest of the network infrastructure is sound and meets the most basic requirements!

 

[CaptainCalculon]

Im going to keep this simply because none of the solutions you’re using is going to work.

That statement sounds somewhat arrogant. Why?
I have gotten all of the PoE splitters to work with a Reolink PoE (IEEE 802.3af) camera.
Obviously, the Reolink camera is not PoE+ which the DH-SD6C3425GB-HNR-A-PV1 is.

First, what brand and model POE Switch is in use now?

TP-Link TL-SG1218MP 18 Port Gigabit Rackmount Switch with 16 PoE+ High Power SFP

Power Budget: 250W

What is the measured VDC at the camera?

Let me get back to you on this one.
I will have to reconfigure everything since the DH-SD6C3425GB-HNR-A-PV1 camera is now powered by a PoE+ cable.

How long is the cable run and what is the diameter of the Ethernet cable in use?

When it was in the test lab, I used a 5m CAT6A S/FTP 28AWG patch cable.
From the installation location to the patch panel, the cable length is ~ 12m.

Cable used when mounted outside: CAT6A S/FTP Cable w/ PVC Jacket (taken from a 305m reel)
23AWG x 4Pair, 100% Bare Copper

installing a POE Injector that actually provides POE+ / POE++ at the switch

Completely unnecessary when I know with 100% certainty that the power budget on my PoE+ switch has not been exceeded.
A PoE++ switch/injector is simply overkill for this camera.

The camera powers on and functions correctly via power injection from the TP-Link TL-SG1218MP PoE+ switch.
I have also tried a dedicated PoE+ injector to rule out power budget issues from the switch (i.e. isolation test).

I’m confident that once that POE+ injector is in place both the camera and microphone will operate just fine.

Nah! The issue is the PoE splitter DC output (not compliant with IEEE 802.3at standard).
This is from all of my testing within the lab.

I am astounded that you are jumping to the conclusion that the PoE+ injector / switch is faulty.
If that was the case, then none of my PoE+ devices would actually work including this camera.

Obviously, I’ll state this assumes the rest of the network infrastructure is sound and meets the most basic requirements!

Obviously. Otherwise, I would have bigger issues with all of my PoE devices and cameras, and powering an external mic would be the least of my concern.

 

[Teken]

That statement sounds somewhat arrogant. Why?
I have gotten all of the PoE splitters to work with a Reolink PoE (IEEE 802.3af) camera.
Obviously, the Reolink camera is not PoE+ which the DH-SD6C3425GB-HNR-A-PV1 is.



TP-Link TL-SG1218MP 18 Port Gigabit Rackmount Switch with 16 PoE+ High Power SFP

Power Budget: 250W



Let me get back to you on this one.
I will have to reconfigure everything since the DH-SD6C3425GB-HNR-A-PV1 camera is now powered by a PoE+ cable.



When it was in the test lab, I used a 5m CAT6A S/FTP 28AWG patch cable.
From the installation location to the patch panel, the cable length is ~ 12m.

Cable used when mounted outside: CAT6A S/FTP Cable w/ PVC Jacket (taken from a 305m reel)
23AWG x 4Pair, 100% Bare Copper




Completely unnecessary when I know with 100% certainty that the power budget on my PoE+ switch has not been exceeded.
A PoE++ switch/injector is simply overkill for this camera.

The camera powers on and functions correctly via power injection from the TP-Link TL-SG1218MP PoE+ switch.
I have also tried a dedicated PoE+ injector to rule out power budget issues from the switch (i.e. isolation test).



Nah! The issue is the PoE splitter DC output (not compliant with IEEE 802.3at standard).
This is from all of my testing within the lab.

I am astounded that you are jumping to the conclusion that the PoE+ injector / switch is faulty.
If that was the case, then none of my PoE+ devices would actually work including this camera.




Obviously. Otherwise, I would have bigger issues with all of my PoE devices and cameras, and powering an external mic would be the least of my concern.

If this was a serious installation there would be the appropriate sized power wire in place with the Ethernet cable.

There obviously isn’t as such you’re stuck using a band aid solution of a POE Splitter!

Nobody serious in the security industry uses these none safety rated / tested products because they are another failure point. As well as another power consuming piece of equipment.

As you clearly learned none of the junk you purchased (POE Splitters) offer what is advertised!

You could use a real (Pass Through) switch. This would allow you to power the camera. You could then use those cheap POE Splitters in another port to obtain the 12 VDC to power the microphone.

All other solutions require a DC source to power the so called splitter. Given you don’t have a dedicated power wire in place that obviously isn’t a choice.

Ultimately, if you find another POE Splitter and it works now. You’re going to experience a rather hard and expensive lesson because that device will result in best case scenario just failing.

To it taking out your camera, switch, both!

 

[guykuo]

Were this my camera, I would simply modify its POE board to output DC from its DC power input jack. Some have done this by simply shorting the block diode to permit the reverse power flow. Since the external mics require miniscule amounts of DC power, I use a resistor rather than completely shorting the diode. It's super convenient camera mod because the camera itself then powers the external mic. Course, you'd need someone with a modicum of electronics skill to modify the POE board at the top of camera housing.

 

[tigerwillow1]

Has anybody noticed that the DC input for this camera is for 24 volts?


SD6C3425GB-HNR-A-PV1_S0_datasheet_20240327

There are some fairly rare splitters that pass power through to the network output port, but the only ones I've noticed are for 803.2af, and you need 803.2at. You could try something unconventional that has worked for me. Get a passive (i.e. dumb) splitter, plug the camera into one output port, and the poe splitter into the other. Then use the splitter's DC output for the microphone, and don't connect it's network output. I'd expect it corrupts the data stream to some extent. I've got one of these at the end of a 200+' cable, working with no problems. Example: RJ45 Splitter Adapter 1 to 2 Ways Dual Female Port CAT6/5/7 LAN Ethernet Cable | eBay

 

[bp2008]

Has anybody noticed that the DC input for this camera is for 24 volts?

That is a very interesting observation! It probably explains why it wouldn't work when fed 12 volts.

You could use a real (Pass Through) switch. This would allow you to power the camera. You could then use those cheap POE Splitters in another port to obtain the 12 VDC to power the microphone.

That is what I'd try. Ubiquiti makes a PoE passthrough switch called the USW-Flex that should be able to handle it when fed with a 60 watt PoE++ (802.3bt) PoE injector or switch. Maybe it would work with a 30 watt PoE+ source, but for best reliability I'd want to find a trustworthy 60 watt source. Ubiquiti also makes a 60 watt injector and it happens to be a very good price.

 

[Teken]

That is a very interesting observation! It probably explains why it wouldn't work when fed 12 volts.



That is what I'd try. Ubiquiti makes a PoE passthrough switch called the USW-Flex that should be able to handle it when fed with a 60 watt PoE++ (802.3bt) PoE injector or switch. Maybe it would work with a 30 watt PoE+ source, but for best reliability I'd want to find a trustworthy 60 watt source. Ubiquiti also makes a 60 watt injector and it happens to be a very good price.

Exactly what I was going to recommend. There are more than a dozen other 1st / 2nd tier companies that make reliable pass through switches.

If people go with other 3rd tier to literally no name brands you have absolutely no idea if the output never mind the long term reliability will be there.

Neither the USW-Flex and PSU is expensive and is only marginally higher in price vs a no name brand.