NEW, "bare bones" No-Name 4 channel NVR, suppose to be POE but....

[bbOOmm]

Recently I picked up a massive amount of brand new, never used POE IP camera and NVR equipment. The price was far less than if I would have AliExpress purchased a 16 camera system, I have been looking at upgrading my WiFi based 8 channel cam system, which was to be a temporary system till the loko neighbor died or moved to an old phogie home, but alas, the creature still resides next door. Thus, time to go with a more permanent, much more secure solution and one that does not flood the already congested 2.4ghz WiFi channels and interferes with my DJI Phantom 3A ... then this deal came along and, I just had to buy it.

This stuff is the same stuff that can be found on AliExpress or Alibaba, probably where it was purchased years ago. All of the equipment is of 2014-2016 vintage, 1080p 2MP stuff. All is POE. I have LPR cams, seveal different models of bullet cams, mini-ptz cams, dome cams - most are in cast metal, extruded metal or stamped metal exterior enclosures, and 16 channel NVRs and 4 channel NVRs WITH built in 10.1" LCD monitors, cheap China made "commercial grade" kind of stuff. Not the plastic home owner grade junk.

Anyhoo,

It seems the 4 channel NVR's are missing the POE injector board. Probably was an add-on option since these things came out of the box without any hard drives. Again, these are NO-MAME, not even a model number to be found on the units. Attached to this post are pictures for identification purposes. The 16 channel NVR's didn't come with hard drives, but had the POE injection system installed.

The question is... I'm looking to make these 4 channel NVR's POE like they were intended to be. I can get separate 4-channel POE injectors, but IF the POE board is still available somewhere, I'd rather go that route. I'm looking for one or two of the POE injector boards. When you look at the main board, you can see the header where that injector board would have been installed.

Anyone have any ideas?

Thanks

 

[TonyR]

Anyone have any ideas?

With a 15VDC input on the back panel if its supposed to be some kind of POE it's not going to be 802.3af/at compliant, may be sPOE ("S"implified) like Zmodo, Funlux and another one I can't recall at the moment Sannce. It should be a 48 to 57VDC input if the power is external or 120/240VAC for an internal power supply for logic and 802.3af/at compliant POE.

You might be better off planning on using an outboard 5 port POE switch, depending on what the cams actually require which brings up this question:
Are the cams supposed to be POE as well? If so, they could also be this non-standard "sPOE" crap.

 

[bbOOmm]

With a 15VDC input on the back panel if its supposed to be some kind of POE it's not going to be 802.3af/at compliant, may be sPOE ("S"implified) like Zmodo, Funlux and another one I can't recall at the moment Sannce. It should be a 48 to 52VDC input if the power is external or 120/240VAC for an internal power supply for logic and 802.3af/at compliant POE.

OK, I'm learning something here.
This may be why the cameras didn't work when I used a POE injector with a 12vdc power supply. I --assumed-- the cameras used 12vdc over poe since they have a 12vdc barrel power connector for use with non-poe systems... the cams might actually be the real poe. I know the cameras work with the 16 channel NVR's without having to supply external power to the cameras... the poe is working. I'm assuming that I could measure poe voltage on the RJ45 ports of the WHAT PINS on the RJ45 to test for voltage?

 

[TonyR]

I know the cameras work with the 16 channel NVR's without having to supply external power to the cameras... the poe is working.

The majority of cams that are advertised as 802.3af/at compliant POE and have the coaxial connectors will work with POE on the RJ-45 or 12VDC on the coaxial connector, center pin positive, collar negative.

Mode B or passive can be measured on pins 4&5 (positive) and pins 7&8 (negative) but reading no voltage doesn't mean it's not working: lots of negotiation can be going on between the PD (the IP camera) and the PSE (the power supply) depending on camera design.

Some POE terms here ==>> Power Over Ethernet

Excerpt:

To retain power, the PD must use at least 5–10 mA for at least 60 ms at a time. If the PD goes more than 400 ms without meeting this requirement, the PSE will consider the device disconnected and, for safety reasons, remove power.​

 

[looktall]

POE switch

Agreed.
Just buy a Poe switch and be done with it.

 

[bbOOmm]

Agreed.
Just buy a Poe switch and be done with it.

It just occurred to me.... the NVR that has 4 - RJ45 ports and a 5th RJ45 as the LAN port.... that could be simply a network switch. If that is the case, getting a 4 port POE network switch would work -- I don't necessarily need to get 4 individual POE injectors or a 4 port POE injector. . Am I assuming correct?

 

[wittaj]

That is correct

 

[bbOOmm]

This is the other type of NVR I have. The 16 channel - obviously POE, the board says so LOL.

 

[bbOOmm]

..... and I have dozens of these dome cameras. All new, in the box, cast metal base, thick plastic dome, manual vari-focus with zoom lens. Very robust looking 2MP POE camera. I like the idea of the felt "gasket" around the lens that wipes against the inside of the dome, preventing the IR LEDs from reflecting back into the camera.

 

[bbOOmm]

......... and .... voltage. On the unplugged ports, pulsing 19.5VDC, on the port that has the camera connected, a steady 53.3VDC.

So the cameras and the 16 channel NVR systems are the real deal POE.

 

[TonyR]

It just occurred to me.... the NVR that has 4 - RJ45 ports and a 5th RJ45 as the LAN port.... that could be simply a network switch. If that is the case, getting a 4 port POE network switch would work -- I don't necessarily need to get 4 individual POE injectors or a 4 port POE injector. . Am I assuming correct?

You'd need a 5 port POE switch: 4 POE ports for 4 POE cams and 1 port to connect to the NVR's LAN port or your LAN; oftentimes labelled "UPLINK."
If the 5th port is POE that's OK, too.