Hak5 - Time Division Multiplexing

[Laphroaig16]

Very good mate!

[amarpritmalhotra]

this was a great video! I wonder if you can make videos about the 7 Network Layers and explain each layer in detail.

[incubuz1980]

Sony :-( You guys should split from Revision3. Sony... that is just not cool...

[hawkeye74011]

thanks for this video. helped alot

[pjtechy]

Hak5 rules

[dxd70]

im a computer science student and u saved my marks .. thxxxxxxxxxxxxxxxxxxxxxxxxxxxx­xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx­xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx­xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx­xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

[Digian]

Hi Darren, just found you guys and loving the Hak5 channel. You should definately do some more technical white boarding sessions. Im in Australia so the E1 info was appreciated, its nice to see you didn't ignore the rest of the world. It's also great to finally find a tech show made by an actual tech! One of the little hacks we had over here with pay per minute isdn data services was to use the signalling channel for free untimed data connections haha. PS. gotta love those old dal.net klines :)

[hubzcaps]

PORN!!!!!!!!  OMFGEEEZY

[haoever]

Shannon is sweet!!! <3

[chamaileon81]

So, the basic difference with T1 is that E1 uses separate time slots for singaling, which is very convinient, leaving us with 30 channels of 64 Kbps each. If you do the math you'll find that: 30x64 = 1920 Kbps

+ 2x64 = 128 Kbps

= 2048 Kbps.

Hope this clears things up a bit. :)

[chamaileon81]

To straight things up an E1 line has 32 channels, 30 channels for transmitting data and 2 channels for synchronization and signaling. So, an E1 frame is separated in 32 time slots. The first slot (TS0) is for syncing, TS1 to TS15 are for data, TS16 for signaling and TS17 to TS31 for data, also. The full bandwidth of an E1 line is 2048 Kbps.

P.S. An E1 line is also used in ISDN and is called a PRI line (Primary Rate Interface, using 30 B channels and 1 D channel).

P.S2. See the above comment.

[alsksk]

Mayn.......I am amazed. Darren knows T1s and E1s when he was 13 years old and I just knew them because I work in an ISP-like company. I am sure the education in our country has a serious problem. Thank you Darren and Shannon..I really enjoyed the video.

[clomax7786]

beats my Telecom class

[dazbush]

Awesome dude, well presented. Always cool to do something different.

[Jonas3d]

Ok I love the new style! Sitting us down with a white board and just learning something cool. Something we can't just google and get a quick answer. Thanks Darren! Looking forward to more

[rdcpcguy75757]

Shannon has big boobs :P

[mobiblu07]

Shannon is a hottie 37:06 :)

[blckwaterpark]

Thank you for the info!

[sunnyd911]

whats up with the advert

[salgiefu]

Really enjoyed this segment! As a current data network/Telecom college student, I love learning all that I can and you make it fun and enjoyable.

Can't wait for the next episode!

[imperiajor]

Excellent explanation Darren ^-^

(greetings from Argentina :)

[FunIsPhun]

3 people are jealous of E1 lines

[TheSebazzle]

I want Moar!! :)

Good job.

Make more shows like this plz.

[rhblakeman]

Someone needs to snap the lid on his denatured alcohol can ;-)

[drecklia]

Your drawing skills are second to none!

[jeriellsworth]

I like the format better now. Next time you should use real fire in the PC. Call me and I'll help you out with it.

[mashzmash]

yeah, it's fun to go layer 1 now and then. next week i expect a full review of the laplace transform

[HilmiR1]

Wow, you're doing a great job, both you and Shannon :) I've been following your videos for a while now and must say that you're very clever in explaining things in a very interesting and informative way. My 12-year old son, who like me is interested in IT, and plays with Arduinos and Mindstorms NXT is also a great fan of your vids. One question for you - could you explain how do they squeeze so many channels in a fiberoptic cable? Greetings from the frozen city of Oslo @HilmiR1

[SixString86IIIIII]

Great Job! I actually prefer this show format than the previous ones. Demystifying and informative and it differentiates the show from the other tech podcasts.

*thumbs up*

[distortednetworks]

huh, i did not know silence on all lines is represented as all 1's. thats freaking cool.

I love this series, because playing with old analog phone systems was really fun to me. Cool stuff.

[riseandrule]

Is it possible to explain the E1 more specifically in the upcoming episode?

Thank you!

[dazcwl]

Takes me back to cisco in college :)

[teknorath]

first

[coffeeandtech]

yay, networking, electronics!

[fastjp72]

Hak5 Rules! Peace

[wheel3r6]

Cool show, Yes do more on communications from 90s to fiber and 4g, LTE.

[ngfisher]

Funny stuff... I learned this in my intro to communications class about a month ago.

[First2ner]

nice, more!

[DaBossk]

i can't concentrate on anything since i heard irvin kershner died... fuck im going to bed ):

[cabrita309]

@ 37:08

[kungfumaster12]

nice... :)

[Rufe0]

like the telephone bit

[timar03]

i liked that one because it wasnt that much about technic stuff it was more about a very smart solution to a problem.

i always like to learn something about smart things. :D

cu

[ph34rgeneral]

sweet darren

[tech33012]

Nice video Helps me alot on my networking class!

[esetechy]

1st view