CCNA Video Training Series

Instant Access, Web or Mobile!

Only $99 for 30 days...
Renew at half price!


Includes FREE Practice Exams!

Member Login

Lost your password?

Not a member yet? Sign Up!

Official Lammle User Forum

Results 1 to 9 of 9

Threaded View

  1. #1
    Join Date
    Dec 2008

    Default CSU/DSU and DCE Quesion

    Hey everyone,

    I am having some problems understanding the CSU/DSU and DCE. I understand that a CSU/DSU is used to connect a DTE (such as a router or computer) to a T1/T3 line. From what I understand, the DTE connects to the CSU/DSU box, and then the CSU/DSU box connects to the circuit. I am a little confused in how that differs from a DCE. I am not really sure on what a DCE is. I understand from Page 30 of Lammle 6th Ed that the DCE is usually located at the service provider. I have researched it online and to me is sounds very similar to a CSU/DSU.

    Wikipedia says: A Data circuit-terminating equipment (DCE) is a device that sits between the data terminal equipment (DTE) and a transmission circuit.
    It also says that the DCE is a modem.

    I though it was the CSU/DSU that sits between the DTE and Transmission Circuit, and I thought the CSU/DSU was the modem.

    This has been really confusing...

    Any help would be appreciated.

    Thank you.
    Last edited by typesh; 12-27-2008 at 09:59 PM.

Similar Threads

  1. Replies: 0
    Last Post: 06-15-2008, 10:48 AM


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts