I tend to agree with Mike. Not only is it useful sometimes with 48v power but it's very useful in powering other Mikrotik devices. Especially in building and microwave environments. If it were useless they would sell no powerboxes. Sure it's not a POE switch but that does not make it useless. Matt On 22/11/21 11:47 am, Mike Everest wrote:
I wouldn't necessarily categorise passive PoE-out as 'useless' :-D
When powered by 24v PSU, then sure - there is certainly some limitations on use of the PoE-out feature: as in it can only be used to power other devices that support 24v PoE Input.
But throw away the 24v PSU and poer up your MT using 48v (for those devices that support >=48v supply) then you can power almost anything with that PoE-out port!
Remember - 802.3af/at (etc) is all about the 'power-ing' device and not the 'power-ed' device - those active PoE mechanisms are intended to allow the power-ing device to manage power budget for connected devices and avoid being cooked by too many devices draining more current that the supply can manage. I've not yet come across a device intended to be powered by 802.3af/at that doesn't work when powered by passive 48v PoE - not saying they don't exist, just that I've not encountered one yet ; ) - so long as you have the right wiring scheme (i.e. 'type-A', 'type-B') then passive PoE should work fine for most.
Cheers!
Mike.
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Matt Richards Sent: Friday, 19 November 2021 11:17 AM To: public@talk.mikrotik.com.au Subject: Re: [MT-AU Public] RB4011 and Yealink W60B
My W56P works just fine on 802.3af.
People just need to remember that Mikrotik/UBNT passive 24v PoE is mostly useless.
Matt.
On 19/11/2021 12:16 pm, Andrew Sims wrote:
The Yealink W60B can absolutely be powered via PoE - I've got one sitting in front of me that's powered via PoE, as do many of our customers.
On Fri, 19 Nov 2021 at 09:39, Karl Auer <kauer@nullarbor.com.au> wrote:
On Fri, 2021-11-19 at 05:23 +1000, Joel Cornale wrote:
I install a lot of W60B’s , the base station is a 5v DC jack ( unfortunately doesn’t support PoE Well dang! That's useful to know, because Yealink's documentation says it does:
https://www.yealink.com/upfiles/products/201806/1529547329714.pdf
If it really doesn't then I'm a bit annoyed at Yealink for leading me on a wild goose chase.
Regards, K.
--
~~~~~~~~~ >> Karl Auer (kauer@nullarbor.com.au) work +61 2 64957435 >> http://www.nullarbor.com.au mobile +61 428 957160 >> >> GPG fingerprint: 9FB6 C08F 91CB 5093 30EF 3E2F 8C94 EEBD 117C 4A10 >> Old fingerprint: CF68 0C56 EEE4 CC19 28D4 03B3 BCE0 E800 E31F 7254 >> >> >> >> >> >> _______________________________________________ >> Public mailing list >> Public@talk.mikrotik.com.au >> http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com >> .au >> > _______________________________________________ > Public mailing list > Public@talk.mikrotik.com.au > http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com. > au _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au_______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au
-- /* Matt Perkins Direct 02 8916 8101 Spectrum Networks Ptd. Ltd. Office 1300 133 299 matt@spectrum.com.au ABN 66 090 112 913 Level 6, 350 George Street Sydney 2000 */