DIGITAL 2T-ATM51-AA PMC ATM Adapter Installation and

This document is an installation and service guide for the DIGITAL 2T-ATM51-AA PMC ATM Adapter, a PCI Mezzanine Card (PMC) designed for systems with PMC slots to connect to an Asynchronous Transfer Mode (ATM) network.

The guide begins by introducing ATM technology, describing it as a switched network for voice, video, and data using 53-byte fixed-length cells, offering scalable transmission speeds and bandwidth reservation. The adapter itself is highlighted as a high-performance, full-duplex ATM adapter supporting 155 Mb/s multimode fiber-optic (9-pin SC) connections. Key features include support for ATM adaptation layer 5 (AAL5), various flow control mechanisms (ABR/Explicit Rate, GFC, FLOWmaster), 16 MAC addresses, 1024 virtual channels for simultaneous receive/transmit, PCI Rev 2.1 compliance, Quality of Service (QoS) for ABR, CBR, and UBR, and high-performance 32-bit DMA transfers. It also supports higher-level ATM protocols and functionalities like Classical-IP over ATM, PVCs, SVCs, LAN Emulation 1.0, and specific signaling protocols (Q.93B/Q.2931).

The document details system requirements, including compatible AXPvme single-board computers, PCI Rev 2.1 compliant bus master slots, and MMF (SC) cabling. Power requirements (5.2V, 2.4A, 13W) and environmental specifications are provided. Supported operating systems include DIGITAL UNIX, Windows NT, and Novell NetWare, with drivers and release notes available on an accompanying CD-ROM and online.

The installation procedure outlines necessary pre-installation steps such as reading the README.TXT file, verifying system requirements, performing an orderly shutdown, and taking antistatic precautions. It then guides the user through physically installing the adapter into a PCI mezzanine-compatible computer, connecting multimode fiber-optic cables to the network, and checking the adapter's LED status indicators to confirm proper operation and link connection. The guide concludes by directing users to the CD-ROM and online resources for further information and troubleshooting.