Cell Relay Archive

[Brad Reese <reese@alliancedatacom.com>]

Hi Tim,

The differences are actually only the application(s) involved, number of
inbound and outbound lines, protocols, etc.  The Edge Switch is usually one
where several lower speed lines are aggregated in the box and then shipped
out over one ATM line.  The concentrator is usually a box that takes in and
sends out multiple ATM circuits as well as other lower speed circuits or
even higher speed circuits.  The ADC Kentrox AAC-3 is an ATM concentrator.

http://www.alliancedatacom.com/adc-kentrox-access-concentrators-multiplexers.htm

Hope this helps.

Best regards,

Brad Reese
The Frame Relay Resource Center
http://www.alliancedatacom.com
Dallas, Texas USA
800-444-5851
214-503-7400

Tim wrote:

> Folks,
>
>       Can anyone tell me what ATM access concentrator is?  My friend
> tells me that he uses an ATM access concentrator to concentrate all the
> traffic from a remote site to the aggregate STM-1, which is sent via SDH
> network to the central ATM switch for outgoing traffic. What is the
> difference between the ATM edge switch and ATM access concentrator? What
> is the difference if ATM edge switch is put in the remote site instead
> of ATM access concentrator for the broadband traffic (eg. video)
>
> Thnaks. Pls email to me: 2207leung@hknet.com if you have any ideas.