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Chapter 1: Introducing the AT-2973SX, AT-2973T, AT-2973T/4, and AT-VNC10S Adapters
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Functional Descriptions
The AT-2973SX, AT-2973T, AT-2973T/4, and AT-VNC10S Broadcom
NetXtreme II adapters are a new class of Gigabit Ethernet (GbE) and 10
Gigabit Ethernet (10GbE) converged network interface controllers
(C-NIC). They can perform accelerated Ethernet data networking and
storage networking simultaneously for all popular protocols used in the
data center, and include features such as:
TCP Offload Engine (TOE) for accelerating TCP
Internet Small Computer Systems Interface (iSCSI) offload for
accelerating network storage access
Enterprise networks that use multiple protocols and multiple network
fabrics benefit from the C-NICs ability to combine data communications,
storage, and clustering over a single Ethernet fabric and to boost server
CPU processing performance and memory utilization while alleviating I/O
bottlenecks.
The basic characteristics of the adapters are listed in Table 1.
Table 1. Network Adapter Cards
Adapter
Number of Ports
or Slots
Speed
Maximum
Distance
Bus
Connector
AT-2973SX Two fiber optic
ports with duplex
LC connectors
1000 Mbps
(1000Base-SX)
220 (722 feet) or
550 meters (1,804
feet)
1
PCIe x4
AT-2973T Two twisted pair
ports with RJ-45
connectors
10, 100, or 1000 Mbps
(10/100/1000Base-T)
100 meters (328
feet)
PCIe x4
AT-2973T/4 Four twisted pair
ports with RJ-45
connectors
10, 100, or 1000 Mbps
(10/100/1000Base-T)
100 meters (328
feet)
PCIe x4
AT-VNC10S Two slots for SFP+
transceivers
10 Gbps
-
2
PCIe x8
1. The maximum operating distances of the fiber optic ports on the AT-2973SX adapter depend on the fiber optic
cable.
2. The maximum operating distances of the SFP+ slots on the AT-VNC10S adapter depend on the transceivers.
Contact your Allied Telesis sales representative for a list of supported transceivers for the AT-VNC10S
adapter.