3Com 155 PCI manual Introduction, Product Features

1 INTRODUCTION

This chapter describes the hardware and software features of the 3Com® 3C975 ATMLink™ 155 PCI network interface card (NIC), hereafter called the 3C975 ATMLink NIC.

Product Features

The 3Com ATMLink 3C975 NIC is available in two models: the 3C975-F and the 3C975-UTP. The 3C975-F NIC has an SC duplex fiber-optic cable connector for double-strand 62.5/125 ∝m multimode fiber-optic cable. The 3C975-UTP NIC has an RJ-45 connector and requires Category 5 unshielded twisted-pair cable. Both 3C975 ATMLink NICs are high- performance single-slot, bus master, half-length PCI cards that provide 155.52 megabit per second (Mbps) SONET (STS-3c) physical layer support.

The 3C975 ATMLink NICs support the following features:

■ATM Forum standard LAN Emulation Client (LEC)

■ATM Forum AAL5 ATM adaptation layer

■ATM Forum UNI 3.0/3.1 standard signaling for switched virtual circuit (SVC) connections

■Up to 4 NICs per system

■Up to 16 emulated LANs (ELANs) per NIC

■Up to 512 active connections per NIC

■Up to 4,096 open and 1,024 simultaneously active virtual channel connections per system

■Resilient Server Link capability to protect against link failure

■Compliance with PCI Local Bus Specification, revision 2.0

■Link LED to indicate connection status