01-Plesiochronous Digital Hierarchy(PDH),

[@stavan2003]

Nice one...starts from the very basics....keep going...!!!

[@german31051984]

your video is very good friend congratulations and your english is so good thanks from Peru.

[@nadineatef140]

More than perfect explanation

[@ry8156]

very nicely explained sir plzz keep uploading more with some practical stuffs too

[@parmeswarchavan5717]

As per you Video in PDH Network if we retrieve 2Mbps from 140 Mbps then we have to go 34Mbps and 8 Mbps. why it is required and can u explain how it works..

[@hosameldinyahoo]

very very very helpful, I am fixed transmission Engineer at LCC Egypt. How can I ask you if I need something, I appreciate your effort and that helps me alot :D

[@bencipherx]

Nice video sire, can you simplify for less technically inclined personel like myself, am a computer scientist and I just wanna know the principles behind SDH PDH WDM. I work for a large telecom company and we have optix manager for maintenance.

[@mohamedfirnas9606]

Excellent

[@darshb38]

Thank You sir :)