Specifications

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Access
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ACE-2002 and 2002E Access Concentrator/ATM Termination Unit
The ACE-2002 can be used as a carrier-owned demarcation device or as a corporate concentrator connected to the public ATM
network.
The ACE-2002E is an enhanced version of the ACE-2002 that can accommodate additional E1/T1 interfaces. Information about
ACE-2002 also pertains to ACE-2002E unless otherwise specified.
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). 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 combination 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 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.
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 a CBR connection. It can be defined with end-to-end OAM flows and act as a regular VP connection in the public network.
Traffic ManagementBoth users and network operators benefit from spacing bursty traffic. For the user, more traffic can pass
through the link at no additional cost. For the operator, spacing enables better statistical efficiency while keeping the same
backbone equipment and QoS. ACE-2002 offers a built-in mechanism that supports up to 983 spaced 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 IMA/UNI 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 six LAN ports in the ACE-2002E). 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.
ACE 2002
Equipment Order Number
ACE 2002 DC Chassis ACE-2002/48
ACE 2002E DC Chassis ACE-2002E/48
ACE 2002 AC Chassis ACE-2002/AC
ACE 2002E AC Chassis ACE-2002E/AC
4xT1 Module M/CES/4T1
Ethernet Module M/ETH
Ethernet + E1 Module M/ETH/CES/E1
Ethernet + T3 Module M/ETH/CEST3
OC-3 Module M/SC13L/155
T1 Module M/T1
T3 Module M/T3
ACE 2002E