Cogent EM100 PCI Fast Ethernet LAN Adapter

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EM100 PCI Fast Ethernet, an innovative 32-bit, bus mastering adapter designed for PCI Local Bus servers and workstations, is the fastest way to connect to 100 Mbitlsec, Fast ethernet networks. With its processor-independence, very large scale integration, and high 132 MByteslsec. data throughput rate, EM100 PCI Fast ethernet gives networks the extra bandwidth they need. This high speed adapter combines the next revolu- tion in ethernet with the fastest bus architecture available to provide a superior solution for today's networks.

Features

Supports 100 Mbits/sec. system throughput on IEEE 100BASE-TX Fast Ethernet networks.
132 MBytes/sec. burst data rate across the PCI bus
Efficient 32-bit bus mastering design enables data transfers across the bus at maximum transfer rates without putting a load on the host CPU
Predictive Pipelining for greater throughput with lower CPU utilization
Self-configuring design for "plug and go" operation
Full Duplex capability supports cumulative 200 Mbits/sec. system throughput for switched Ethernet networks
Drivers for popular networks including NetWare 2.x, 3.x, 4.x, NetWare Lite, Personal NetWare, LAN Manager, SCO UNIX , NEXTSTEP, Windows NT, Banyan VINES, IBM LAN Server, Artisoft LANtastic, Windows for Workgroups, DEC PATH WORKS for DOS, FTP PC/TCP, LAN Workplace, PC-NFS, and many others
Limited lifetime warranty

High bandwidth networking

Ten times faster than traditional 100 Mbit/sec. Ethernet adapters, EM100 PCI Fast Ethernet is ideal for resource-intensive graphics, multimedia, Microsoft Windows, and mission-critical applications which need high throughput and low CPU utilization to power large amounts of data across the network. Cogent's Predictive Pipelining technology minimizes bottlenecks system-wide and prevents transfers from loading the host CPU. With independent 2 KByte transmit and 4 KByte receive FIFOs (First In, First Out memory) on-board, and powerful DMA capability, EM100 PCI Fast Ethernet can handle increased bus latencies with decreased sensitivity to load.

For maximum throughput, EM100 PCI includes Full Duplex Fast Ethernet (FDFE) capability which doubles the cumulative system throughput rate in switched Ethernet networks. FDFE capability is easily enabled via software configuration. Completely independent transmit and receive circuitry means that EM 1 00 PCI Fast Ethernet can handle receive and transmit requests simultaneously for true 200 Mbit/sec. operation at Minimum Interframe Spacing. Full Dupiex Fast Ethernet servers provide workstations with the maximum performance advantage.

"Plug and go" configuration provides flexibility

The EM100 PCI Fast Ethernet is self-configuring; its base configuration is automatically set in BIOS for maximum convenience.

EM100 PCI adds flexibility to the system by allowing PCI configuration registers to be mapped to either I/0 space or memory. By providing flexibility in how the registers are accessed, EM100 PCI makes it easy to avoid conflicts with existing resources.

Product Specifications

  Systems Supported
     PCI Local Bus computers, based on
     Intel, DEC Alpha, and MIPS processors
     in 100BASE-TX networks

  Bus Interface
     PCI, 32-bit bus master
  
  Ethernet Controller
     DECchip 21140 LAN coprocessor chip

  Hardware Interrupts
     PCI interrupt A
     supports shared interrupts

  Base I/0 or Memory Address
     Assigned by BIOS

  PCI Configuration Space
     Suppofts DWORD, WORD, and BYTE access

  Reliability
     Calculated MTBF >100,000 hours

  Power Requirements
     +5 volts @ 1.5 Amp. max

  Environmental Operating Range
     Temperature: O' C to 50' C
     Relative Humidity: 5% lo 85% non-condensing
     Altitude: 3000m maximum

  Interface Connections
     RJ-45 female
     supports CAT 3 STP, CAT 5 UTP,
     and CAT 5 STP cabling
   
  Dimensions
     5.075" x 3.9" (conforms to PCI Short Card
     specification)

  Standards Compliance
     IEEE 802.3u 100BASE-TX

  Drivers Available
     3.5' diskefte
     NetWare2.x, 3.x, 4.x, NetWare LRe, Personal
     NetWare, LAN Manager, SCO UNIX,
     NEXTSTEP, Windows NT, Banyan VINES, IBM
     LAN Server, Attisoft LANtastic, Windows for
     Workgroups, DEC PATHWORKS for DOS,
     FTP PC/TCP, LAN Workplace, ODI for
     Windows NT, PC-NFS
     NDIS 3: Windows NT, Windows NT for
     DEC Alpha

  Diagnostic LEDs
     Link lntegrfty, Network Activity

  Warranty
     All EMASTER+ series adapters are
     protected by a limited lifetime warranty

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