Posted
14 October 2003

Access concentrator for backhaul apps

Supplier
Proactive Communication Solutions

RAD Data Communications has unveiled the ACE-2002E, an addition to the company's ACE family of ATM access devices. The product, an enhancement of RAD's ACE-2002 Multiservice Access Concentrator and ATM Network Termination Unit (NTU), combines up to 20 E1/T1 UNI/IMA ports or up to 20 E1/T1 CES ports. Its two main markets are cellular backhauling and extension of LAN and leased line services over ATM.

The high E1/T1 port density offered by the ACE-2002E is particularly suitable for the cellular environment. It is suitable as a platform for concentrating TDM-based E1/T1 links from cellular BTSs and ATM-based E1/T1 links from Node Bs over a single ATM transport network. Therefore, it is suited to offer cellular operators a smooth migration path from 2G and 2.5G to 3G.

Because it mixes and matches different forms of traffic, carriers can use the ACE-2002E to enhance traditional E1/T1 services with ATM's inherent quality of service (QoS). In addition to popular LAN over ATM services, the ACE-2002E allows carriers to provision a large number of E1/T1 circuits over ATM. Carriers can use the ACE-2002E to generate additional revenue from existing ATM backbones.

The ACE-2002E also allows carriers to provide customers with service level agreements (SLAs) tailored for differentiated services. The plug-and-play ACE-2002E offers advanced capabilities, including fault localisation, delay measurement and performance monitoring. The device performs traffic shaping and spacing, which improves efficiency of statistical multiplexing. It also implements ITU-T I.610 OAM (operation, administration and maintenance) flows, providing end-to-end QoS.