Solved: the most common csu/dsu in asia and north america

sarahr202 · ‎02-22-2009

Hi every body!

i am just wondering which csu/dsu(brand) is most common in asia and usa?

Thanks a lot!

Edison Ortiz · ‎02-22-2009

Very hard to tell.

If you purchase a Cisco router, you will most likely purchase an internal CSU/DSU.

However, if you were to purchase a non-Cisco router, you would purchase that vendor's internal offering or purchase a 3rd party external CSU/DSU.

Internal CSU/DSUs are ideal as you can manage/configure them directly from the router.

HTH,

__

Edison.

View solution in original post

Edison Ortiz · ‎02-23-2009

It could be an stand alone unit but if you buy a Cisco router, you often end up with the internal option and it looks like this:

http://www.cisco.com/en/US/prod/collateral/routers/ps221/product_data_sheet09186a00801a9184.html

HTH,

__

Edison.

View solution in original post

Richard Burts · ‎02-23-2009

Sarah

Yes that is what it means. The internal CSU/DSU has the functionality built into the serial card. The CSU/DSU functions take place within the chassis and there is no external unit.

HTH

Rick

HTH

Rick

View solution in original post

Edison Ortiz · ‎02-23-2009

All current Cisco routers have a slot allocated for internal CSU/DSUs.

The last router NOT to have a slot allocated for internal CSU/DSU was the 2500 Series router which was a non-modular router.

View solution in original post

Edison Ortiz · ‎02-22-2009

Very hard to tell.

If you purchase a Cisco router, you will most likely purchase an internal CSU/DSU.

However, if you were to purchase a non-Cisco router, you would purchase that vendor's internal offering or purchase a 3rd party external CSU/DSU.

Internal CSU/DSUs are ideal as you can manage/configure them directly from the router.

HTH,

__

Edison.

sarahr202 · ‎02-22-2009

Thanks a lot Edison!

What do we mean internally? Does it mean csu/dsu is not stand alone unit,rather implemented inside the chasis.

Edison Ortiz · ‎02-23-2009

It could be an stand alone unit but if you buy a Cisco router, you often end up with the internal option and it looks like this:

http://www.cisco.com/en/US/prod/collateral/routers/ps221/product_data_sheet09186a00801a9184.html

HTH,

__

Edison.

sarahr202 · ‎02-23-2009

Thanks Edison!

Do the routers such as 2600 xm come with bay which can be removed to install this csu/dsu card or this card comes pre-installed in routers?

thanks a lot!

Edison Ortiz · ‎02-23-2009

All current Cisco routers have a slot allocated for internal CSU/DSUs.

The last router NOT to have a slot allocated for internal CSU/DSU was the 2500 Series router which was a non-modular router.

Richard Burts · ‎02-23-2009

Sarah

Yes that is what it means. The internal CSU/DSU has the functionality built into the serial card. The CSU/DSU functions take place within the chassis and there is no external unit.

HTH

Rick

HTH

Rick