Hikvision Camera Dead No POE - But Green & Red Lights On

[fishcakes]

Ok, tried again it with the recommended wiring.
- still nothing
- managed to type a few letters but unresponsive

This is the new wiring as recommended.
- (cut & stripped insulation with a pair of household scissors)
- let me know if that's correct & should work



Also tried swapping red + black cables from the camera. No response in putty.

Tried your recommended 115200 Speed/Baud rate + default 9600 rate. Also no response.

At this point I think the unit is just dead.
- at least I can't access it via putty

The last thing I can imagine would be my dodgy wiring. These TTL connectors seem to be for pins rather than raw wires.
- (I could go extreme and cut off the TTL connectors and splice the cables together)

The system seems to be running since whenever I plug the LAN cable into the NVR - the green light comes on.


Probably a dead unit?

 

[Billiboy]

The cables are as far as I can see right.
I've got a connection with Putty, so I use Tera Term.
Try it please.
Download File List - Tera Term - OSDN

 

[alastairstevenson]

That new arrangement does not look correct.
Assuming consistency in the wiring colours amongst PL2303 adaptors, and assuming the pins on the male connector on the camera board have their slight offset towards the side away from where the white arrow is located, in your case away from the edge of the board, you need to plug the connector in to miss the pin where the white arrow is.
Then you need to swap the red and yellow wires from the camera connector.
Yellow from the camera to green of the PL2303
Red from the camera to black of the PL2303
Black from the camera to white of the PL2303 (as you already have it).

This is a (temporary) worked example I just hooked up to test:
Oh, and 115,200baud no parity 8 bits is the correct setting.

 

[Billiboy]

Did not I write this up?

In the Auction i found

Black cable-----GND
Green cable----TXD
White cable----RXD
Red cable ---- VCC (5V)

Red Cable --- Do not you need (I hope you have nothing destroyed with the 5V)
Black cable-----GND--- to Your Red
Green cable----TXD---to RX-- Yellow Cable
White cable----RXD--- to TX---Black Cable


Are you sure that the right pin is gnd? Is there a small white triangle on the board at the soldered pin? Then there is the gnd, next to the tx then the rx, and the RX and TX is to cross.

 

[Billiboy]

 

[Billiboy]

 

[alastairstevenson]

The cables are as far as I can see right.

Did not I write this up?

Yes indeed - but the pictures in post #21 don't match.

 

[Billiboy]

Up´s.. Sorry...

 

[fishcakes]

Ok, so tried all those things that you guys recommended again (thanks)
- different wiring configs
- using Tera Term (nice auto detection of COM3 Prolific port)
- wiring as recommended by alastair:



But unfortunately none of them worked.

As a side note found that those spare connector blocks are excellent for making sure the raw wires are solidly connected to the TTL ends!
- (See blocks in picture above)

So tried loads of different random configurations.

Found that only 1 consistently lets me type in putty - but provides no feedback from the device



No idea why though.

Tested while live - if I remove either the Black OR Yellow cable (from Camera end) - then I can no longer type.
- removing the Red cable, I can still type

 

[alastairstevenson]

That wiring looks OK to me.

- removing the Red cable, I can still type

Are you saying that what you type is being echoed on the screen?
That usually requires activity by the camera, unless Tx and Rx are joined together somehow.

I presume you've tried just watching the screen when you power on the camera?
It does sound like it's more of a brick than many that have appeared on the forum. Pity.

 

[fishcakes]

Yea, what I type is being echoed on the screen - when wired in the configuration of that last picture.

I presume you've tried just watching the screen when you power on the camera?

Yes, also tried watching screen when powering on - no results.

Yea thinking it must be just a brick then =(

 

[alastairstevenson]

It does seem like it.
Where in the UK are you?

 

[fishcakes]

In London

 

[fishcakes]

Just as a follow up - opened up an different working Hikvision camera (same model) and connected via putty using Alistair's wiring method.

Worked fine - full boot screen loaded in putty.
- then Windows crashed....

But in any case - proof of concept. Alistair's wiring method works.
- Billiboy's labelling shows correct layout for reference in Post #25

Any way to get this unit repaired (assuming it needs spare parts)?
- or should be sent to dump?
- Hikvision's centre is in the Netherlands and won't take it

 

[alastairstevenson]

Worked fine - full boot screen loaded in putty.
- then Windows crashed....

Well, that's a good confirmation that the method of checking is OK.
I don't think you have mentioned if you have tested the camera with an external 12v power supply instead of the PoE source.

 

[fishcakes]

Yea, used an external power block like this:

 

[alastairstevenson]

No, I meant a 12v power supply, plugged in to the power pigtail, avoiding the PoE method, just in case the PoE convertor in the camera is the problem.

 

[fishcakes]

Oh. No haven't got one of those for testing.

 

[Billiboy]

Repairing is such a thing. I have just exchanged the Lan chip, but unfortunately is still not. Must be even more defective.

So a power supply you should take time to test, no POE.