×
INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

How is an E3(34mb) signal multiplexed to form a STM-1(1.5mb)signal

How is an E3(34mb) signal multiplexed to form a STM-1(1.5mb)signal

How is an E3(34mb) signal multiplexed to form a STM-1(1.5mb)signal

(OP)
How is an E3(34mb) signal multiplexed to form a STM-1(1.5mb)signal

RE: How is an E3(34mb) signal multiplexed to form a STM-1(1.5mb)signal

Based on my understanding an STM-1 is 155 Mbits/s SDH pipe. At a high level PDH transmission systems can be mapped onto an STM-1 payload. The overall standard is based on the CCITT recommendation G.709.

A simple mapping can be 4 34 Mbits/s onto a 139/140 PDH, and 1 140 Mbit/s mapped onto an STM-1 payload, or a standards based soloution of 3x34 Mbit/s payloads mapped onto an STM-1.

Actual mapping is a little more complex.

RE: How is an E3(34mb) signal multiplexed to form a STM-1(1.5mb)signal

(OP)
I realize that a 45mb ds3 in to a c3 to vc-3 to u-3 to tug-3 x3 to vc-4 to au-4 to aug = stm-1 155mb.
what container sequence (cx) is a 34mb e3 multiplexed at.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login


Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close