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WS-8-150-DC - 802.3af / 802.3af support?

Posted: Tue Jul 26, 2016 2:19 pm
by tioan
Hello,

can the WS-8-150-DC power an 802.3af / 802.3af powered devices, like the WS-6-Mini shown in this picture?

Re: WS-8-150-DC - 802.3af / 802.3af support?

Posted: Tue Jul 26, 2016 2:45 pm
by sirhc
tioan wrote:Hello,

can the WS-8-150-DC power an 802.3af / 802.3af powered devices, like the WS-6-Mini shown in this picture?


First off the WS-6-MINI is NOT 802.3af/at

All of Netonix switches and all of the UBNT airMAX radios, airFIBER, AFX, and most WISO radios are NOT 802.3af/at they are "PASSIVE" POE devices.

Most UBNT airMAX radios are 24V not 48V which is nowhere near 802.3af/at compliant, it is only a "passive" POE standard

Technically 802.3af/at POE is "ACTIVE" POE which means the switch queries the device and the device responds and the switch knows that it is an 802.3af/at POE device and turns POE ON for the port.

In a passive POE switch the operator tells the switch to turn POE for a port and selects which voltage such as 24V and 48V to use.

Now it just so happen that UBNT and Netonix follow the 802.3af/at polarity pin outs.

802.3af ACTIVE POE polarity PIN out:
Pin 1 - No voltage Data Only
Pin 2 - No voltage Data Only
Pin 3 - No voltage Data Only
Pin 4 - 48V DC Positive
Pin 5 - 48V DC Positive
Pin 6 - No voltage Data Only
Pin 7 - DC Negative
Pin 8 - DC Negative

802.3at ACTIVE POE polarity PIN out:
Pin 1 - 48V DC Positive
Pin 2 - 48V DC Positive
Pin 3 - DC Negative
Pin 4 - 48V DC Positive
Pin 5 - 48V DC Positive
Pin 6 - No voltage Data Only
Pin 7 - DC Negative
Pin 8 - DC Negative

Now Netonix offers up to 4 differnt POE options the user can chose from for each port:
24V which is Pins 4,5 + and PINS 7,8 negative @ .75A which is used for most UBNT airMAX radios (not including the Titanium Rocket)

24VH which is Pins 1,2,4,5 + and Pins 3,5,7,8 - @ 1.5 A which the only radios that can use this setting are AFX radios and Metrolink radios. Using this POE option on UBNT airMAX radios will fry the radio and the Port in the switch. NEVER USE 24VH on airMAX radios. However all new AFX radios support 48V and 48VH so why use 24VH

48V which is Pins 4,5 + and PINS 7,8 negative @ .75A which is used for most 802.3af devices like IP Phones, cameras, MIMOSA, and Titanium Rockets.

48VH which is Pins 1,2,4,5 + and Pins 3,5,7,8 - @ 1.5 A which the only radios that can use this setting are airFIBER 5 and 24, MIMOSA radios, and other high power radios that are designed to receive power on 11 4 pair.

You also use 48VH to power our WS-6-MINI, do not power the WS-6-MINI with 48V, you need all 4 pair to deliver enough power.

802.3af maxes out at 15 watts
802.3at maxes out at 25 watts

Our 48VH maxes out at 75 watts BUT YOU HAVE TO MAKE SURE THE DEVICE IS LOOKING FOR POWER ON ALL 4 PAIR.

But to answer your question the WS-8-150-AC has ONE port (Port 1) than can power 48VH so yes the WS-8-150-AC can power 1 WS-6-MINI



I strongly suggest you Google 802.3af/at POE and read about it then Google Passive POE - TWO TOTALLY DIFFERENT ANIMALS.



Re: WS-8-150-DC - 802.3af / 802.3af support?

Posted: Thu Sep 28, 2017 12:20 am
by CCIS
Chris pls edit your helpful post. You have a typo:
Pins 1,2,4,5 + and Pins 3,5,7,8 -
pin 5 listed twice, missing pin 6