Seeking Advice for CCTV System Design

[BrandonJ]

Would appreciate any input on this system design - choke points? Latency? Suggestions for a better method of transmission.

Regards

 

[yogidabear]

Looks great. Would be nice if the wireless could plug in to the PoE switch, but if they are 24V not many switches do passive. If everything has to feed to the far right, that wireless device could maybe be something better like 60GHz depending on the distance. Just to have ample throughput, but again we dont know what anything is to guess the maximum throughput.

 

[eddief1]

Looks good.

- The newer UBNT kit supports 802.3af POE, so you could potentially get rid of all the injectors-I would recommend u go that route, simpler

- Have you got good line of sight between those ubnt bridges?, what's the distance and what kit u thinking?

- The 3 switches connected by fibre...maybe don't daisy chain them if u have that option. Use 2 cores, one for each switch. At least then if middle switch dies u don't bring the rest down.

The unknown is the microwave links as their quality is determined by local interference, LOS, etc - also depending how they orientated beware u don't interfere with yourself


EDIT: Oops, I see UBNT still does not support Active POE on their outdoor products - I must of confused myself with the Unifi range

 

[itareanlnotani]

I'd hard wire if you can. Wireless links work till they don't.

With Eksdom going up and down like a yoyo, easy to get situations where an AP goes into Factory Reset, and loses its settings. Depending which side of the bridge that is, can be a pain in the rear.

Been there, done that. Wired unless its absolutely impossible otherwise.

Also - stick camera's on their own VLAN. They're notoriously insecure things, so should be delegated to their own network.

Do that on the right hand side.

 

[BrandonJ]

Thanks for all the input - removed the wireless ,no matter what topology we were still getting too many hops through switches and radio's. We also adopted the 2 core fiber solution for the switches to improve redundancy, and to decrease potential latency from the daisy chaining.

 

[yogidabear]

Ok wireless should never have been considered with those distances. Huge improvement, but not sure why you have separate converters if you can just buy a switch with SFP slots.

 

[BrandonJ]

Ok wireless should never have been considered with those distances. Huge improvement, but not sure why you have separate converters if you can just buy a switch with SFP slots.

Thanks - The SFP switch is optimal. We are just catering for the instance were we cannot get them.
Do you have a good source for SFP POE switch?

Regards

 

[BrandonJ]

Would this work and would we still need a SFP Module?

 

[yogidabear]

Would this work and would we still need a SFP Module?

Typically when you see a switch advertising SFP it means the slot which is great as then you can pick your medium, like single mode, or in your case multi mode. Nobody really buys the stand alone media converters any more as they work out too expensive. For example this is a PoE switch with 2 SFP slots yet costs less than some converters https://scoop.co.za/scoop-8-port-gigabit-ethernet-ai-poe-switch-with-2-sfp-uplink.html

 

[BrandonJ]

Typically when you see a switch advertising SFP it means the slot which is great as then you can pick your medium, like single mode, or in your case multi mode. Nobody really buys the stand alone media converters any more as they work out too expensive. For example this is a PoE switch with 2 SFP slots yet costs less than some converters https://scoop.co.za/scoop-8-port-gigabit-ethernet-ai-poe-switch-with-2-sfp-uplink.html

Thanks that's great. I have an account with scoop as well. Only Thing is that I see total PoE payload is 96W.

I have found that Motorized Zoom lens cameras and PTZ cameras, need a lot of power. Some PTZ's we have to connect 1 on it's own to a 4 Port PoE. I know that our manufacturers PoE switches are going to drive the motorized zoom lenses, and if I use a single 4 port will drive the one PTZ.

I am not confident of the PoE payload on other brands, which is why we are taking this approach.

 

[yogidabear]

Only Thing is that I see total PoE payload is 96W.

1W more than the entry level Ubiquiti 24 port PoE at 95W. The devices get hungrier as you said, and the switches are getting lighter. If your camera manufacturer has good switches, great.

Good luck with the install!

 

[netstrider]

Thanks that's great. I have an account with scoop as well. Only Thing is that I see total PoE payload is 96W.

I have found that Motorized Zoom lens cameras and PTZ cameras, need a lot of power. Some PTZ's we have to connect 1 on it's own to a 4 Port PoE. I know that our manufacturers PoE switches are going to drive the motorized zoom lenses, and if I use a single 4 port will drive the one PTZ.

I am not confident of the PoE payload on other brands, which is why we are taking this approach.

You can use PoE injectors, either 60W or 90W standalone injectors for infrared PTZs with wipers.

 

[deweyzeph]

Also - stick camera's on their own VLAN. They're notoriously insecure things, so should be delegated to their own network.

In addition to putting the cameras on their own VLAN, you should also create a firewall rule that prevents any device on that VLAN from accessing the internet. If you're running an NVR to record and monitor all the cameras then there is absolutely no need for any of the cameras to have internet access.

 

[itareanlnotani]

In addition to putting the cameras on their own VLAN, you should also create a firewall rule that prevents any device on that VLAN from accessing the internet. If you're running an NVR to record and monitor all the cameras then there is absolutely no need for any of the cameras to have internet access.

^^^THIS


As for PoE - power, I have several powered PTZ with LED/Full Color at Night cameras running off a UBNT 16 port/95w EdgeSwitch, the max usage on mine is under 9W, night time averages higher, as the lights come on.

Most are Cameras are PoE+, I also feed wifi p2p - older Unifi needs 24v though.

Total load is still comfortably within the limit. I'd recommend the UBNT switches - whichever flavour you prefer - Edge or Unifi, the management side is decent.


Read your camera specs though - and make sure you do have enough headroom to run all the camera's you need, or get additional injectors if not.

 

[BrandonJ]

^^^THIS


As for PoE - power, I have several powered PTZ with LED/Full Color at Night cameras running off a UBNT 16 port/95w EdgeSwitch, the max usage on mine is under 9W, night time averages higher, as the lights come on.

Most are Cameras are PoE+, I also feed wifi p2p - older Unifi needs 24v though.

Total load is still comfortably within the limit. I'd recommend the UBNT switches - whichever flavour you prefer - Edge or Unifi, the management side is decent.


Read your camera specs though - and make sure you do have enough headroom to run all the camera's you need, or get additional injectors if not.


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Thanks again to all for the inputs.