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HP ProCurve Series 6600 Installation And Getting Started Manual: Twisted-pair Cable/connector Pin-outs

Procurve 6600 series switches.
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Cabling and Technology Information

Twisted-Pair Cable/Connector Pin-Outs

Twisted-Pair Cable/Connector Pin-Outs
Auto-MDIX Feature: The 10/100/1000-T ports support the IEEE 802.3ab
standard, which includes the "Auto MDI/MDI-X" feature. In the default
configuration, "Auto", the ports on the Switch 6600 all automatically detect
the type of port on the connected device and operate as either an MDI or MDI-
X port, whichever is appropriate. So for any connection, a straight-through
twisted-pair cable can be used -- you no longer have to use crossover cables,
although crossover cables can also be used for any of the connections.
If you connect a Switch 6600 twisted-pair port to another switch or hub, which
typically have MDI-X ports, the Switch 6600 port automatically operates as an
MDI port. If you connect it to an end node, such as a server or PC, which
typically have MDI ports, the Switch 6600 port operates as an MDI-X port. In
all cases, you can use standard straight-through cables or crossover cables.
If you happen to use a correctly wired crossover cable, though, the switch will
still be able to automatically detect the MDI/MDI-X operation and link
correctly to the connected device.
Other Wiring Rules:
All twisted-pair wires used for 10 Mbps, and 100 Mbps operation must be
twisted through the entire length of the cable. The wiring sequence must
conform to EIA/TIA 568-B (not USOC). See "Twisted-Pair Cable Pin
Assignments" later in this appendix for a listing of the signals used on each
For 1000Base-T connections, all four pairs of wires in the cable must be
available for data transmission. See
ments" on page B-2
for more information on 1000Base-T cabling.
For 10 Mbps connections to the ports, you can use Category 3, 4, or 5
unshielded twisted-pair cable, as supported by the IEEE 802.3 Type
10Base-T standard.
For 100 Mbps connections to the ports, use 100-ohm Category 5 UTP or
STP cable only, as supported by the IEEE 802.3u Type 100Base-TX stan-
For 1000 Mbps connections, 100-ohm Category 5e or better cabling is
"Note on 1000Base-T Cable Require-


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