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Alexander Fedotov2017-02-20 12:24:35
Electronics
Alexander Fedotov, 2017-02-20 12:24:35

Is there a fundamental difference between a PoE injector and PoE built into a switch/switch?

I plan to take Mikrotik CRS109-8G-1S-2HnD-IN to a private house . I like that it has 8 ports and all are gigabit. This will be the gateway. From it, the Internet will be distributed to 3 such pieces of Mikrotik wAP AC , which I plan to power by PoE, and generally hide the cable to them in the wall.
And now the questions:
1) Will everything work OK if I power these 3 access points through a PoE injector? Maybe it's better to take a model like Mikrotik RB260GSP that supports PoE out of the box? Is there a fundamental difference?
2) I read on the network that if you power via PoE from the switch port (which supports it), then in the switch settings you can see all the information on power + remotely reboot the powered device. And if you feed the injector through PoE, then the access point cannot be rebooted remotely. How can this be? What prevents you from accessing the access point over the network and rebooting it?

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12 answer(s)
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Dmitry Shitskov, 2017-02-20
@orderbynull

Please note that Mikrotik has passive POE and will not allow you to use a gigabit connection to your points. Therefore, you need either 802.3af/at injectors or a non-Mikrotik POE switch that supports 802.3af/at

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xtala zen, 2017-10-24
@xtala

Lingualeo + Rosetta Stone.
Lingualeo for vocabulary. Before training, be sure to pass the test and indicate the direction of IT training.
Rosetta Stone for hearing. I was very surprised when I literally worked out with this program a couple of times and began to clearly distinguish almost every word in English audio. Prior to this, he did not perceive speech by ear at all, although he read quite confidently. It was something like: "Blalalala bool bool Blalalala Bool Fuck Suck..."
Lingvaleo is free, Rosetta stone is also hmm.... free... Free on torrents, if you know what I mean :).
You will find everything yourself.
Well, if you don’t find it, then it’s better to go sorting potatoes to a vegetable warehouse.

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kp069, 2017-10-24
@kp069

The algorithm is the same as when learning a language in general. You have to go from simple to complex. If absolutely 0, I would start with a tutorial, for example, Petrova (New English tutorial) or Ovadenko (My own English teacher). They will give you a basic understanding of grammar and some vocabulary. It is advisable to quickly master it and put it on the shelf and no longer use bilingual textbooks. Along the way, to consolidate the grammar, you can use Raymond Murphy textbooks (Start with red, then blue). There is an OK English channel on youtube, where the exercises from them are explained quite clearly. To gain vocabulary, take literature by level and read. You can start with adapted books and then move on to something more complex. Adapted audiobooks are also handy for ear development. You can listen to podcasts e.g. Luke's English. You can watch TED, there are also subtitles, which is generally super for language learners. And you never know you have to watch some kind of video, but you won’t understand anything) Well, in order to learn how to write correctly and speak clearly, you will have to write a lot and talk a lot) There’s no way without outside help.
And find yourself a proper dictionary. It would be highly desirable to abandon Anglo-Russian in the future.
Time is different for everyone. According to my observation, to a confident intermediate (With a correspondingly developed vocabulary, writing, listening, reading and speaking) it takes a year and a half or two, depending on how you practice. If you strain the rolls, you can do it a little faster.

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Anton Filippov, 2017-10-24
@vicodin

Just read and translate, after a month you will contact the translator much less often.

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Alexander, 2017-10-25
@SashaKon

I'll put in my 5 cents. The Anki program helps a lot to replenish vocabulary, there is for PC and Android, I don’t know iOS. The program is completely free, decks on trackers can be downloaded. You put out 10-20-30 words and repeat every day.

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Bjornie, 2017-10-24
@Bjornie

In the example you provided, there are no special words or phrases that are technical. The only thing that can be noted in this case is: “controlled components”. Everything else should be understandable if you know at least somehow English. If you don't understand this, then learn the basics, and then "technical" English.
This term exists in many areas, but I repeat, since you yourself write "English is completely zero", then learn the basics, reach the level where your example will not seem difficult for you to understand. And there you will already understand, because the level will be! = 0.

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Astrohas, 2017-10-24
@Astrohas

hmm, for a simple text, google translate is enough. Half the Freelancers do that. In general, knowledge of technology is sufficient to understand any technical texts.
UPD:
To understand the speech (you never know what you will communicate with the customer), I advise you to watch Ted Talks, quite interesting topics appear there.

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Stalker_RED, 2017-10-24
@Stalker_RED

You already understand well what is written there. Put some extension with a translation and read, over time, the gaps will become less and less.
This is "Google translator", for example:
IhlouEO.png

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yoshidamana, 2017-10-25
@yoshidamana

You have already understood well what is written there. I would advise you to study English as normal English, but do exercises on topics of interest, for example, prepare a change log. For vocabulary, it helps me to google work questions only in English and, accordingly, read only English-language articles from the search results.

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chupasaurus, 2017-10-24
@chupasaurus

  1. Elementary will be clearly not enough, at least intermediate (and in general, it is not without reason that expats are hired with a level of language knowledge not lower than upper intermediate / B2 in the European Union classification).
  2. They should master it in 2-3 years, it strongly depends on the age and digestibility of the material. I recommend starting to train mindfulness, because you have problems with it (convenient when transliterated will resemble the word "convention", from where you can understand the meaning without a dictionary, "handles" never looks like a "headline").

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Ivan, 2017-10-24
@Za0r

Well, look, comrade.
1) engblog.ru/category/grammar
2) Polyglot course on youtube.
3) Look at reviews on phones/cars and what's interesting on YouTube from foreigners :) Helps to hear words.
4) Audio course English for Russian speakers from Dr. Pimsler.

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Dmitry Pacification, 2017-10-25
@dmitry_pacification

In addition to kp069 's answer, when you get to intermediate, you can walk around the peaking clubs

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