l To ensure compliance with CISPR 24 and the EU's EN55024, Intel® 10 Gigabit Server
Adapters and Connections should be used only with CAT 6a shielded cables that are properly
terminated according to the recommendations in EN50174-2.
l For 1000 Mbps operation (1000BaseT), use Category 5 or better (must be 4-pair wiring). Make sure you
use Category 5 cable that complies with the TIA-568 wiring specification.
NOTE: To insure compliance with CISPR 24 and the EU’s EN55024, devices based on
the 82576 controller should be used only with CAT 5E shielded cables that are properly ter-
minated according to the recommendations in EN50174-2.
l For 100 Mbps operation (100BaseTX), use Category 5 wiring or better.
l For 10 Mbps operation (10BaseT), use Category 3 wiring or better.
l In all cases:
l Segment length is limited to 100 meters (328 feet, 1 inch).
l The adapter must be connected to a compatible link partner, and may be set to auto-negotiate
speed and duplex.
l For more information on this specification, see the Telecommunications Industry Association's web-
site: www.tiaonline.org.
CAUTION: If using less than 4-pair cabling, you must manually configure the speed and
duplex setting of the adapter and the link partner. In addition, with 2- and 3-pair cabling the
adapter can only achieve speeds of up to 100Mbps.
Insert the twisted pair, RJ45 network cable as shown.
CX4
Physical cabling characteristics for the Intel® CX4 Dual Port Server Adapter must meet IEEE Std 802.3ak,
Clause 54 specifications. The required cable connector is an MDI latch-type receptacle, as defined by IEC
61076-3-113.
The IEEE standard defines a worst-case cable length of 15 meters, based on 100 O, twinaxial cable
characteristics. However, commercial cable manufacturers may offer enhanced products that will permit
successful operation over greater distances.
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