DS0 - beginning of digital telephony (T1, T3, E1, E3)

In last video, we talked about PCM, pulse Code Modulation, a method used to convert analog signals, such as a telephone call, to digital signals. PCM is a basis for understanding today’s topic: Digital Signal 0, or DS0, which is a fundamental key for understanding digital telephony.
In this video, we will also discuss about T-carrier’s T1 line, T3 line and E-carrier’s E1 and E3 lines.
My topics are organized by playlists:
/ sunnylearning
My most popular videos:
czcams.com/users/sunnylea...
Wireless and Wi-Fi
• CSMA/CA - Wireless Med...
Remote Access/WAN technologies
• Circuit Switching vs. ...
This is my education channel. My topics cover networking, security, programming, data structure, algorithm, programming and other computer-related materials.
Please leave comments, questions and subscribe!
Thank you very much!
Sunny Classroom

[@RyanxDunn]

That last point of "residential users don't use these lines because we have other high-speed options available" made me understand this whole concept of T and E-series lines. I was so confused as to where they actually factored in to today's technologies that we use, not knowing that they've been surpassed.

[@Felix2011y]

Great as always

[@mahmoudibrahim1715]

very helpful, thank you Sunny 💛

[@shahidahmad1219]

Your Videos are always full of learning. Kindly share a video on Dedicated lines and shared lines.

[@ramshidbnuhassan5451]

Its a best class in my view.

[@sunnyclassroom24]

thanks a lot!

[@asoteico9528]

Awsome...!!!

[@ahmedusama2173]

Wonderful, thank you so much

[@sunnyclassroom24]

You are welcome!

[@music_of_spirit]

Thanks Sunny ! Good Job

[@sunnyclassroom24]

You are welcome!

[@christopherapps6177]

Thanks. It helped me.

[@sunnyclassroom24]

YOu are welcome!

[@sathiyag]

very nice video to understand the terms

[@sunnyclassroom24]

Glad to hear that!

[@muhammadfahadkhalidsiddiqu3659]

for T1: 24 Channel x 8 bit each channel + 1 framing bit per frame = 193 x 8000 samples per second = 1,544,000 bps = 1.544 Mbps

[@notchippy]

Why is there a difference in the number of voice calls carried in a DS1 signal and a E1 signal?

[@willtaylor754]

very nice

[@sunnyclassroom24]

thanks.

[@gospelchcha5527]

Not explained properly what is T1 & E1 abbrivation

[@shahidahmad1219]

Kindly make a video on Dedicated internet lines and Shared lines. and also share information that FTTH technology give us dedicated lines or shared internet lines.

[@auditorofauditors862]

Yes. Shared, if carrier uses GPON. 32 to 64 customers share ~2.5Gb.
Most carriers use a GPON architecture for FTTH. 2.5Gb uplink from OLT PON port provides circuit to one splitter. That splitter can be a 1x2 split or 1x16 or 1x32. Whatever the combination of splitters or if the design calls for just one splitter , most companies don’t split a GPON pon port more than 64 ways. Typically, the pon port travels directly to/from a 32-way splitter. The 32 pigtails from the splitters are routed to the various distribution ports of a fiber cross-box. This provides the passive circuit from the exchange to the curb or the home, whatever the case may be.

[@yardencohen5779]

Will you be doing a video on sdh?

[@sunnyclassroom24]

will do!

[@chrismaguire8165]

what are we using now instead of T1 or E1?

[@Brew-doo]

Fiber optic cables that can go up to 100G.

[@fahadoutlook1241]

64 x 24 = 1536
How it become 1544 ?

[@uvebgns8224]

(8bits * 8000times/second) * 24 + (1guard bit *8000 ) = 1544 kbit = DS1

[@sunnyclassroom24]

great! Thanks a lot for your input.