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Chapter 1: Overview
12
Twisted Pair Ports
The AT-x210-9GT, AT-x210-16GT, and AT-x210-24GT Layer 2 Gigabit
Ethernet Switches feature 9, 16, and 24 twisted pair ports, respectively. All
ports are 10Base-T, 100Base-TX, and 1000Base-T compliant. You can
set the port speeds and duplex modes either automatically with IEEE
802.3u Auto-Negotiation or manually with the management software.
The twisted pair ports feature 8-pin RJ-45 connectors. For the port
pinouts, see “Connectors and Port Pinouts” on page 54.
The ports have a maximum operating distance of 100 m (328 feet). For 10
Mbps operation, the ports require Category 3 or better 100 ohm shielded
or unshielded twisted pair cabling. For 100 or 1000 Mbps operation, the
ports require Category 5 or Enhanced Category 5 (5E) 100 ohm shielded
or unshielded twisted pair cabling.
The ports feature auto-MDI, which automatically configures the ports as
MDI or MDI-X. This feature allows you to use straight-through twisted pair
cables regardless of the wiring configurations of the ports on the end
nodes.
Note
A switch port connected to an end node that is not using Auto-
Negotiation should not use Auto-Negotiation to set the speed and
duplex mode, because a duplex mode mismatch may occur. In this
case, disable Auto-Negotiation and set the port’s speed and duplex
mode manually.