From: Jason Gardiner (gardiner@xxxxxxxxxx)
Date: Fri May 18 2001 - 20:49:04 GMT-3
Hello,
The CSU/DSU is actually 2 separate functions that takes the single serial
signal coming from the router and channelizing it into 24 64Kbps channels.
Each side requires a clock. Typically, the router provides clock for the
DSU, telco for the CSU (I think I've got that right), as each uses
different methods of ensuring data synchronization. But the router _can_
provide clocking across the whole circuit if the CSU/DSU allows it to.
Thanks,
Jason Gardiner
Engineering Services
Sprint E|Solutions
"The only thing to prevent what's past is to put a stop to it before it happens
."
- Sir Boyle Roche
On Fri, 18 May 2001, Jeongwoo Park wrote:
> hi all
> Shouldn't router's source clocking be configured depending on csu/dsu's
> source clocking?
> For example, csu/dsu's source clocking was configured as internal. Then what
> type of clocking source should the router that is directly connected with
> this csu/dsu have?
> Should this router have line or internal or something else?
> Or am I totally missing something?
>
> thanks in adv
>
> oh, one more thing that pops out of my head..
> I have seen a router 1740 that has csu/dsu module within the router. Then
> what is the deal in this case?
>
> jp
> **Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:30:45 GMT-3