Strange icon on Dahua IP camera server page

H

hdtvjeff

Getting the hang of it
Nov 19, 2014
216
19
Hi,

I just mounted a 8MP Dahua IP camera (4831) Touret firmware upgradeable

Two things,

It works perfectly during the day, then at night connects and disconnects constantly, either on camera server page or Blue Iris

Using 12v 2a power 100 feet from camera ( which are most of my installs)

Now, all of a sudden an icon appears on camera page ( looks like a battery, or low battery indicator.

Can anyone shed light on this? Thanks!

Jeff
 

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That camera is not on an ideal MP/sensor ratio, which leads me to believe the camera CPU is underpowered for what the camera is trying to achieve.

Since it happens at night, I suspect that the IR kicks on and the camera doesn't have enough power and for some reason is showing a low battery icon for some reason.

For testing, drop the FPS to like 3 or 4 FPS and a bitrate of 1,000 and see if the problem goes away.

If not then turn off the IR and see if it goes away.

But it sounds like a power issue associated with IR lights drawing more power, coupled with the distance you are running on a camera that is put on a sensor that is not powerful enough.
 
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100 feet is a long distance for a 12 volt supply. What gauge wire are you using? The camera is obviously being starved for power.
 
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sebastiantombs said:
100 feet is a long distance for a 12 volt supply. What gauge wire are you using? The camera is obviously being starved for power.
Click to expand...


From the poe splitter at the camera end I use cat 5 cable which terminates 100 feet away at the switch and power outlet for the POE transformer, might 12v 3A be an option?
 
So the camera is supplied by PoE. At the camera is a splitter to give you 12 volts for the camera. Is the splitter rated at two amps? What does the spec sheet for the camera list for its' current draw?
 
$11.49. For 15 bucks more you could probably have a 4 port POE switch and be done with all the bullshit.
 
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Ok i see them from $25 to $69 bucks, heres one i'd probably buy.

 
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So, basically Dahua camera with splitter attached to it only gets the cat 5 from POE box? leave power connector on camera splitter alone?
 
just power the camera with the Power over Ethernet switch. the 12VDC splitter stuff is dropping down too much apparently.
 
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Still trying to figure out your power connection - do you have cat5 going to the camera from a POE switch and you are using 12V power? Or you are trying to split power out at the camera?

These cameras do not need the 12VDC power if you have a POE switch.
 
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Current configuration : Dahua camera with hard wired splitter mated with another splitter with the only out put being cat 5...That then runs 100 feet and at that point that cat 5 cable in put into a splitter, one part of the splitter gors to the 12v 2a transformer and the cat 5 connector on that splitter goes to 10/100/1000 unmanaged switch.

Is the standalone POE that people are talking here have more juice than a 12v/ 2a power transformer?
 
12 v2a is hard, use a POE spliter to power the cam maybe better if you just have one cam, if has more poe cams, can use a poe switch, very cheap for a 4ch one.
 
Yes. Stand alone Poe switches have more Juice.
From a Google search. You may want go this route.

What Is the 802.3at PoE Standard?
The original IEEE 802.3af-2003 PoE standard provides up to 15.4 W of DC power on each port.
The updated IEEE 802.3at-2009 PoE standard, also known as PoE+ or PoE plus, allows for up to 30 W of power to Type 2 devices. That’s sufficient power for devices such as VoIP phones, wireless access points, and security cameras. But it’s not enough for technology like flat screen displays, LED lighting, or retail POS terminals.

An IEEE standard for powering network devices via Ethernet cable. Also known as "Power-over-Ethernet" (PoE), the 802.3af specification provides 48 volts over 4-wire or 8-wire twisted pair. The 8-wire cable uses one twisted pair for the power, while the 4-wire transmits the power over the same pair as the data, but uses different frequencies. Designed for such devices as IP phones, cameras and Wi-Fi access points, 802.3af allows them to be placed in locations that have no electrical outlets. Only the Ethernet cable needs to be connected.
 
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Standard implementation
Property802.3af (802.3at Type 1) "PoE"802.3at Type 2 "PoE+"
Maximum power delivered by PSE15.40 W30.0 W
Voltage range (at PSE)44.0–57.0 V50.0–57.0 V
Voltage range (at PD)37.0–57.0 V42.5–57.0 V
Maximum current Imax350 mA600 mA
 
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Flintstone61 said:
Standard implementation
Property802.3af (802.3at Type 1) "PoE"802.3at Type 2 "PoE+"
Maximum power delivered by PSE15.40 W30.0 W
Voltage range (at PSE)44.0–57.0 V50.0–57.0 V
Voltage range (at PD)37.0–57.0 V42.5–57.0 V
Maximum current Imax350 mA600 mA
Click to expand...

Thank you for the info! I guess I don't understand why a spec with 350mA or 600mA can trump 2A with a 12v transformer
 
Thank you for the info! I guess I don't understand why a spec with 350mA or 600mA can trump 2A with a 12v transformer especially over a 100 foot run. I guess Voltage is key here not amperages, forgot electricity 101 or PIE
 
If you have a large enough wire, you can probably send the 12V 100 feet, but since you have to run ethernet cable anyway to the camera, it just makes the most sense to also allow that to also power the camera to minimize the number of cables being used. The cameras are designed for that function.

Very few here use the 12v power option for these cameras.
 
Understand not you do, buy POE switch you will. I'm no expert. the idea of 17 camera's with 17 power injectors in a tiny rack space was a nightmare i wanted to avoid.
Here is my very first attempt at POE switches. a Cisco with 802.3 af only 12 ports are POE. knowing what I know now... I would have bought something else. Which I eventually did.

download (3).jpg

IMG_3646.JPG
 
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Flintstone61 said:
Understand not you do, buy POE switch you will. I'm no expert. the idea of 17 camera's with 17 power injectors in a tiny rack space was a nightmare i wanted to avoid.
Here is my very first attempt at POE switches. a Cisco with 802.3 af only 12 ports are POE. knowing what I know now... I would have bought something else. Which I eventually did.

View attachment 106240
Click to expand...
Actually read all of that in a Yoda voice... Thanks for the laugh :rofl:
 
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