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Chapter 1: Introduction to the AT-29xx Series Gigabit Ethernet Network Adapters
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Functional Description
The AT-29xx Series Gigabit Ethernet Network adapters target the
increased congestion experienced at the backbone and server in today’s
networks. These adapters provide a future upgrade path for high-end
workstations that require more bandwidth than Fast Ethernet can provide.
The adapter connects a PCI compliant server or workstation to a Gigabit
Ethernet network. The adapter incorporates a technology that transfers
data at a maximum rate of 2Gbps—20 times the rate of Fast Ethernet
adapters. In addition, the adapters use fiber optic cabling and a connector
that meets 62.5/125um or 50/125um multimode specifications. These
adapters operate at 1000 Mbps full-duplex mode only.
The AT-29xxSX Series of Gigabit Ethernet adapters includes the following
models:
AT-2916SX
AT-2931SX
AT-2972SX
AT-2972SX/2
The AT-2916 adapter is a 33/66Mhz 32-bit interface (PCI) card and is
available in three versions:
AT-2916SX/SC adapter
AT-2916SX/LC adapter
AT-2916LX10/LC-901 adapter (suitable for long-haul fiber optic
cables)
The AT-2931SX adapter is a 33/66/133Mhz 32/64-bit interface (PCI-X)
card and is available in two versions:
AT-2931SX/SC adapter
AT-2931SX/LC adapter
The AT-2972SX/2, and AT-2972T/2 adapters are both PCI Express 4-
channel devices. The AT-2972SX is a PCI Express 1-channel device.
The AT-2972LX10/LC-901 adapter is suitable for long-haul fiber optic
cables. The AT-2972SX has one port and the AT-2972SX/2 has two ports.
All ports have LC connectors. The AT-2972T/2 has two gigabit copper
ports.