Carrier-owned multiservice concentrator/ATM demarcation device (CLE -customer-located equipment) or enterprise access concentrator

Extends carrier management and control up to the customer premises

Allows service providers to offer LAN, Frame Relay, ATM and voice/TDM services over ATM networks or terminate ATM services

Supports CBR, VBR (rt and nrt), ABR, UBR and UBR+

Allows multiple traffic management options, including traffic monitoring, policing and shaping

Enables VBR (rt and nrt) and CBR traffic shaping with hierarchical traffic scheduling

Enhanced control capabilities according to ITU-T I.610 OAM standard, providing end-to-end ATM QoS control, fault localization, delay measurements and performance monitoring

Aggregation of up to six STM-1 links to STM-1 or STM-4 Aggregation of up to 20 E1/T1 links to STM-1/OC-3 or STM-4/OC-12

ATM interfaces: STM-4/OC-12, STM-1/OC-3, E3/T3, IMA (4/8 x E1/T1), 25 Mbps and E1/T1

Interworking interfaces

- Ethernet/Fast Ethernet

- 1/4/8 x E1/T1 CES

- hybrid - Ethernet/CES E1/T1 or Ethernet/CES E3/T3

- 1/4 X Frame Relay (FRF.5, FRF.8)

- 1/4 X HDLC

Plug-and-play installation

Service Level Agreement (SLA) enabled by events and statistics collection

In-band and out-of-band SNMP management and software download

RADview-HPOV network management application (UNIX-based)

Optional redundant hot-swappable network user interfaces and power supplies

Compact, suitable for 19" racks
ACE-2002: 1U high
ACE-2002E: 1.5U high

The ACE-2002E is an enhanced version of the ACE-2002 that can accommodate additional E1/T1 interfaces.

As a demarcation device, the ACE-2002 enables carriers and service providers to define the boundary between their ATM-based public services and the customer private network (customer-located equipment – CLE) or between two public networks (network junction unit – NJU). A clear demarcation point at the customer premises increases the service reliability, improves network efficiency and ensures end-to- end QoS support.

The ACE-2002 can be used for a mix of legacy services such as voice, LAN, Frame Relay, HDLC and ATM, or as a demarcation device for native ATM traffic.

The ACE-2002 has built-in features that enable the extension of ATM network facilities up to the customer premises. These features support various ATM services, such as advanced traffic management (policing, scheduling and shaping) and full I.610 OAM (Operation, Administration and Maintenance) flow support. In addition, the wide range of ATM modules further enhances the flexibility of service offerings.

When used as an interworking device, the ACE-2002 enables smooth migration of legacy equipment such as PBXs and routers operating over ATM networks. Using multiport modules and up to three user slots, the ACE-2002 can be used as a concentrator for medium to large corporations. The unit enables the most efficient utilization of public ATM services for transporting different types of corporate traffic, including ATM.

ACE-2002 supports both NNI and UNI addressing with full bit range of VPI/VCI fields. ACE-2002 can support up to 1,024 connections (VPC and/or VCC). In addition, full switching capability is available between each VC or VP (from either the user or the network) to obtain maximum flexibility in connection assignment.

To enhance carriers' service offerings, ACE-2002 supports VP tunneling. This enables bundling multiple VCCs into a single VPC while maintaining all the VCC QoS characteristics and I.610 OAM capabilities at F4 and F5 layers. Each tunnel can be shaped as either a CBR or VBR connection. It can be defined with end-to-end OAM flows and act as a regular VP connection in the public network.

Traffic Management

Both users and network operators benefit from shaping bursty traffic. For the user, more traffic can pass through the link at no additional cost. For the operator, shaping enables better statistical efficiency while keeping the same backbone equipment and QoS.

ACE-2002 offers a built-in mechanism that supports up to 983 shaped connections and employs enhanced per-VC queuing.

In addition, ACE-2002 supports hierarchical traffic scheduling. The layers are set per VC, per VP or VP tunnel and per network interface. In these cases, ACE-2002 schedules the traffic to meet pre-defined traffic parameters. This ensures fair bandwidth sharing between different connections while preserving the requirements of the individual connections.

In order to improve service resilience, ACE-2002 offers a protection mechanism on the user and network sides, which enables standard SDH/SONET protection of the last physical segment from the service exchange to the customer premises.

ACE-2002E can combine up to 20 E1/T1 UNI/IMA ports, or up to 20 E1/T1 CES ports. The high E1/T1 port density is especially suitable for cellular applications.

ACE-2002 can be equipped with multiple LAN modules (up to 6 LAN ports). The LAN module performs bridging and routing (RFC 1483/2684) with IP ToS and 802.1D priority support. In addition, multiple VLANs can be configured, optimizing ACE-2002 for LAN and IP access applications.

The ACE-2002 comes in a 1U high enclosure suitable for mounting in a 19" rack. The ACE-2002E is 1.5U high.