I am looking for a PoE Switch Replacement for my Instar 8003 camera. It need to offer MAC Port Security, which I am pretty sure the RB260 does with its SwitchOS.
I am reading conflicting User comments regarding the PoE support though. Mikrotik doesn’t officialy state 802.3af/at support for the switch.
My question now is, will it work with my Instar Camera. Instar lists in its specifications - Voltage 12v - Power Usage 8 watts.
I am not intending to power the switch itself with PoE, but will be using the AC Power Supply.
The Mikrotik tech specs say for PoE output:
Max out per port output (input 18-30 V) 1 A
Max total out (A) 2 A
Can anyone tell me for sure if the switch will be able to power my PoE Camera?
Edit: One more question, does the switch have holes on the back for wall mounting?
For starters: 12V input for that camera is already not 802.3 compliant. So you may need a 12V POE splitter.
Can’t find installation manual for that camera right away so you may have to check there what it says.
Since RB260 is default powered by 24V adapter, that’s going to be the voltage applied to its POE output.
You can change that power adapter and as it happens to be 11V is the lowest you can go. 12V is possible then.
However … specification states that POE output requires an INPUT of 18-30V. And then 12V is out again.
So I already see quite a bit of incompatibilities here … it’s not going to be plug and play.
That 12V splitter looks to me like the only viable option.
In shoret: very likely RB260GSP can’t be used to power your camera.
There are two kinds of PoE:
standard 802.3 af/at/bt
It operates at 48V, different generations (af vs. at vs. bt) differ in maximum power allowed (and number of UTP pairs used to pass power) and in some minor details.
Your camera is rated at 12V … but it’s possible that this only applies to powering using power jack, not to PoE. You have to study the specifications of your camera and pay attention to details.
“passive” PoE … there are a few possible variations and it’s up to each vendor to use one of variants. Which means that inter-vendor compatibility is not guaranteed but it might work.
Also voltages used can wildly vary and one has to make sure that PoE provider (switch) outputs voltage which fits PoE powered device (camera).
With Mikrotik it’s also important to note that PoE-out device doesn’t convert voltages (with a few rare exceptions which use internal power adapters) … so whatever voltage used to power PoE switch is then output. In case of RB260GSP this means 24V which is what standard power adapter outputs. If your camera allows passive PoE but requires 12V, then RB260GSP might fit the bill if you replace power adapter with 12V one (make sure it can output at least 5A). However, specs of RB260GSP says that PoE out is 1A per port when input voltage is between 18V and 30V … which means it’s not clear if powering device with 12V would actually allow you to use PoE out.
This particular switch doesn’t support 802.3 af/at PoE … it would have to allow up to 57V power supply as minimum requirement. Which it doesn’t (input voltage can be as high as 30V).
To further expand on the matter, splitters that take the 24V in and output the 12V for the camera do exist, BUT there is even another issue, Mikrotik (passive) PoE is “mode B”, it has to be checked if the splitter is mode A or mode B: https://www.etherwan.com/support/faq/what-poe-power-pins-assignment-mode-b
(and it is surprisingly difficult to find the actual specs of these devices)
Sometimes these modes are called instead “mid-span” and “end-span”.
And some are 10/100 whilst other are 10/100/1000, usually the mode B ones are 10/100, while the 10/100/1000 are both modes A and B but are intended for 802.3af (48-56V) and not for the passive 24V.
and use an el-cheapo 24V to 12V step down converter (the kind used for trucks are rather handy) and a couple jack connectors.
On the other hand, a test if there is PoE out when it is powered at 12V (probably one would need some 14-15V to actually still have 12V at the other end of the ethernet cable, it depends on distance and quality of cable) would cost very little or nothing.
Yes, there are two holes on the back for wall mounting it.
Netzwerkschnittstelle 10Base-T/100Base-TX RJ45 LAN-Anschluss
PoE (nur für PoE-Version) IEEE 802.3af (+ Pin 4 und 5 / - Pin 7 und >
IF it is the PoE version, it uses Mode B, and the interface is 10/100.
BUT there is an added issue.
Something, to be 802.3af compatible, needs to support BOTH Mode A and Mode B, and actually Mode A is much more common on 802.3af devices.
