Puzzled! TECH MCIG51V not working with POE

[Creakyknees]

Hi all, I have a question that I hope the collective can help with. I have 2 x 5MP (ZX TECH MCIG51V) (DC 12V 750mA) IP POE Cameras. I have no problems with networking them and viewing them when they are powered from a 12v 1A adaptor mains adaptor.

However, when I try and power them using POE (using a 12v 1A POE injector), the cameras are not receiving power. I have tried several POE injectors and network cables, so that is not the problem. There does not appear to be any software configuration to change and nothing is mentioned in the manual (leaflet) that came with them. I contacted the supplier who stated I should use one of their 4 port POE injectors, however I am reticent to do this as there is only one camera at each location so I do not need the other three ports. They do not seem to have single POE units.

The only thing I can think of why these will not work is that the POE injectors I am using are passive. Do I need active and if so can anyone recommend a single suitable unit.

Thanks in advance.
Creakyknees

 

[Phil]

Your passive POE injectors very likely do not comply with the IEEE 802.3af/t standards, which is what the camera is expecting.

Tenda PoE30G-AT 30W PoE Injector

The Tenda PoE30G-AT is a Gigabit PoE injector that delivers both power and data through one Ethernet cable for easy network extension. This unit has a maximum transmission distance of 100m and can be used for IEEE802.3af compatible devices.

www.use-ip.co.uk