Allied Telesis AT-SB*81CFC960, Руководство по установке

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Chapter 2: Ethernet Line Cards
64 Section I: Hardware Overview
Twisted Pair Ports
This section applies to the twisted pair ports on the following line cards
and expansion modules:
 AT-SBx81GT24 Ethernet Line Card
 AT-SBx81GT40 Ethernet Line Card
 AT-SBx81GP24 Ethernet Line Card
 AT-SBx81XLEM/GT8 Expansion Module
 AT-SBx81XLEM/XT4 Expansion Module
Connector Type
The ports on the line cards and expansion module have 8-pin RJ-45
connectors, except for the ports on the AT-SBx81GT40 Line Card, which
have 8-pin RJ point 5 connectors.
The ports use four pins at 10 or 100 Mbps and all eight pins at 1000 Mbps.
or 10 Gbps. The pin assignments are listed in “Port Pinouts” on page 352.
Speed
The port speeds are listed here:

AT-SBx81GT24, AT-SBx81GT40, and AT-SBx81GP24 Line Cards
and AT-SBx81XLEM/GT8 Expansion Module - 10, 100, or 1000
Mbps

AT-SBx81XLEM/XT4 Expansion Module - 1000 Mbps or 10 Gbps
The switch can set the speeds automatically through Auto-Negotiation, the
default setting, or you can manually set them with the AlliedWare Plus
Operating System.
Note
Twisted-pair ports have to be set to Auto-Negotiation to operate at
1000 Mbps or 10 Gbps. You cannot manually set twisted-pair ports
to 1000 Mbps or 10 Gbps.
Duplex Mode
The twisted-pair ports on the AT-SBx81GT24 and AT-SBx81GP24 Line
Cards and AT-SBx81XLEM/GT8 Expansion Module can operate in either
half- or full-duplex mode at 10 or 100 Mbps. Ports operating at 1000 Mbps
can only operate in full-duplex mode. The twisted-pair ports are IEEE
802.3u-compliant and Auto-Negotiate the duplex mode setting.
You can disable Auto-Negotiation on the ports and set the duplex mode
manually.