Zhone Technologies 600 - Manual (Page 75)

Server Cards 4-1
ATM Card Introduction
Chapter 4
ATM Card
4.1 Introduction
This chapter provides installation, configuration, and troubleshooting information for the
Asynchronous Transfer Mode (ATM) Server Card.
With ATM firmware (641xx) the ATM Concentrator is an application running on the
Advanced Communications Server (ACS), providing a DS3 ATM port. It supports both
constant bit rate and variable bit rate applications and offers connectivity from WAN, HSU
analog voice, FRAD and BRI. Note that this card is labeled as an ACS card on its faceplate
ejector. It is called an ATM card only in the user interface screens described in this chapter.
Throughout this chapter, it is referred to as the ACS-ATM card.
The acceleration in ATM deployment has created an opportunity for users to migrate legacy
applications to both the private ATM backbone and to public ATM services. The incentives
for integrating the existing applications with the typically higher-speed ATM traffic are
primarily financial in nature, but another significant benefit is the resultant streamlining of
network operations and management.
4.2 ACS-ATM Card Descriptions
4.2.1 ACS-ATM Card Description (882060)
The ACS-ATM card is a high-performance server card designed to concentrate the entire
bandwidth of the Integrated Access System into a high-speed ATM link. The input to this card
is derived from WAN T1 and/or E1 interfaces, from any of the user cards in the system’s eight
chassis user slots and an 10-Base-T ethernet port for wirespeed LAN extension. All existing
user interfaces are supported, including voice and data.
The card currently supports ATM Segmentation and Reassembly (SAR) processor and a DS3
electrical interface (BNC connectors). In this release, only the UNI is supported. The
ACS-ATM card circuitry is capable of supporting ATM Adaptation Layers AAL0, AAL1,
AAL3, AAL4, and AAL5.
The ACS-ATM card connects a wide range of equipment to an ATM network, including
analog PBX/key systems, digital PBXs, low-speed data terminal equipment, N x 56/64 kbps
data terminal equipment, and video codecs.