View unanswered posts | View active topics


Reply to topic  [ 2 posts ] 
Author Message
  
 Post subject: Troubleshooting Short term DC on PoE cameras.
PostPosted: Thu Aug 24, 2017 5:40 am 
Registered User

Joined: Aug 2017
Posts: 2

Offline
Hello,

Hell of a first post incoming.

I have total 7 PoE cameras installed in a manufacturing facility.
Since i had no experience, i did the best i could while designing the system.
I have one camera per PoE switch -> data switch -> PC/Server (Scheme added)
I got the system up and working only this way when there were no cameras connected to "Data switch" hence the reason calling it data.
So i have an issue where 4 of the cameras are unstable (right side data switch( cabling marked with "?")) Long loading times, connection drops, latency etc.
No cable (Cat5e) should be longer than 100m/330ft.
Power is supplied from single wall socket to whole system.
Switches are 40W maximum output supporting IEEE802.3at, af. 10/100Mbps (up to 150meters)
Most powerful/biggest camera max 20W usage.
Usually when one camera drops connection, all 4 go down from that side. 5 seconds to couple of minutes. Usually couple of seconds.
If it was power requirement, all 7 cameras would drop, same with bandwith limit i guess.
The connection drops usually occur when i try to access camera via ip or simply trying to PTZ.

I've been thinking about:
New/secondary cable from data to data swith as it's been patched couple of times. (Rats bigger than cats, video on request)
An PCI-e networking card specifically for cameras?
UPS
Gigabit data switch
Eliminating link between two data switches and bringing two cables to server from each data switch.

Any suggestions, troubleshooting/testing ideas welcome.

Best Regards,
H.

PS! There is a router between pc and data switch. Also i have few empty leads for future cameras.

Edit// 2 of the cameras on connection drop side are 1080p (one PTZ) and 2 704x576px (both PTZ)


You do not have the required permissions to view the files attached to this post. Please sign-in or register to view or download.


Top
 Profile  
Reply with quote  

  
 Post subject: Re: Troubleshooting Short term DC on PoE cameras.
PostPosted: Tue Sep 05, 2017 6:11 am 
Registered User

Joined: Aug 2017
Posts: 2

Offline
Another anomaly I discovered:
When I am locally connected directly to the camera via ip, and I have a remote client connected over mobile internet -
Remote client always sees movement/picture update first. Local image can freeze for minutes while remote client has no issues. (Unless connection drops)
The internet connection is mobile/no cable.

I use Axis cameras and Milestone VMS


Top
 Profile  
Reply with quote  

Display posts from previous:  Sort by  
Reply to topic  [ 2 posts ] 


Who is online

Users browsing this forum: No registered users and 4 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

It is currently Tue May 22, 2018 2:28 pm

The contents of this webpage are copyright © 2003-2016 CCTVForum.com. All Rights Reserved.