Adaptec ANA-6944A/TX Specifications

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Adaptec ANA-6944A/TX Specifications - Page 2
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ADAPTEC QUARTET
Four-port ANA
-6944A PCI server adapter
for Fast Ethernet environments
®
Product Highlights
Four connectors supporting four
separate network segments, all
at full bandwidth
Each of the four channels oper-
ate at independent speeds for
maximum flexibility (10 Mbps,
20 Mbps, 100 Mbps, 200 Mbps)
Full Duplex Fast Ethernet on
UTP, for up to 800 Mbps
throughput on one adapter
NWay auto-negotiation of
maximum line speed on
10/100 TX adapters
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Overview
The Adaptec Quartet four-port adapters
are the ultimate performance solution for
PCI servers operating on Fast Ethernet and
Ethernet networks.With four channels
on a single board and Full Duplex support,
these adapters have the features today’s
32-bit Fast Ethernet and Ethernet servers
need to handle user’s graphics, multimedia,
database, and mission-critical applications.
These innovative adapters provide ample
bandwidth for even the most demanding
networks. They support up to four net-
work segments on separate channels for a
cumulative throughput of up to 800 Mbps
(depending on model). The Adaptec Quartet
adapters multiply flexibility,performance,
and cabling compatibility by four, and pro-
vide easy migration paths from Ethernet to
Fast Ethernet network solutions.
Key Features and Benefits
Scalability
Using Adaptec’s four-port adapter, I.S.
organizations can increase the total network
bandwidth without the need to buy addition-
al new servers. Though the PCI bus offers
132 MBps of bandwidth, typically only a
limited number of slots are available,
thereby restricting the number of segments
a server can handle. The Adaptec Quartet
adapters solve this problem by providing
the power of four Fast Ethernet, or Ethernet,
segments on a single adapter. These adapters
use an on-board PCI-to-PCI bridge chip to
extend the machine’s internal bus. Multiple
four-port adapters can be installed on each
server for even greater overall bandwidth.
Full duplex mode
Full Duplex Fast Ethernet (FDFE) and Full
Duplex Ethernet (FDE) capabilities double
the cumulative system throughput in Fast
Ethernet and Ethernet networks. Servers
using the four-port adapters can handle,
receive, and transmit requests simultane-
ously, over multiple ports so workstations
benefit from much faster service.
Designed for performance
The adapters’ efficient bus master design
minimizes CPU utilization for optimum
throughput. Independent transmit and
receive FIFO buffers (First In, First Out
memory) for each port onboard, and
a powerful DMA capability mean consis-
tently high performance, even during
periods of peak network activity.
Flexible configuration
Adaptec Quartet adapters support all four
network channels at full cable bandwidth.
Each channel is fully independent and is
automatically configured by the system
BIOS. Each of the adapters’four ID
nodes can be customized at load time.
Adaptec Quartet adapters support NWay
auto-negotiation to automatically detect
the networks maximum line speed. No
adapter configuration is necessary. For
maximum flexibility, this AutoSense feature
is compatible with all 10 and 100 Mbps
devices, including those without NWay
line speed negotiation.
Duralink™ software enabled
Adaptec’s 10/100 PCI adapters are enabled
to work with Adaptec’s innovative Duralink
suite of software. This suite includes
Duralink Failover and Duralink Port
Aggregation software. Duralink Failover
software establishes an FDDI-like port
resiliency with both active and hot-standby
links. In the event that the active link fails,
the standby link is automatically activated
to preserve the network link and maintain
the server’s availability. Duralink Manager
software, included with all adapters, is a
data compilation tool that simplifies
adapter monitoring and configuration.
Duralink Port Aggregation software lets
users aggregate up to 12 ports per workgroup
for speeds up to 1.2 Gigabits per second.