Allied Telesis AT-AR3050S, Руководство по установке

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Chapter 1: Overview
20
WAN Ports
ETH Ports (RJ-
45)
The routers have two ETH ports (RJ-45) that support 10/100/1000 Mbps
twisted pair ports.
The ETH ports are located between the management panel and the
bypass ports. The upper port is ETH 1 port and the lower port is ETH 2
port.
You can use one of the ETH ports to connect the router to the WAN. ETH
1 and ETH 2 ports both support bypass ports.
ETH Ports (SFP)
The routers have two ETH ports (SFP slots) that support 1000Base-X SFP
transceivers which are in accordance with IEEE802.3u and IEEE802.3z.
The ETH ports are located between the LAN ports and bypass ports.
You may use the SFP transceivers to connect routers to the WAN.
Note
You can use either the transceivers or the ETH ports (RJ-45) to
connect routers to the WAN. You can use ETH1 or SFP1, but not
both at the same time. You can use ETH2 or SFP2, but not both at
the same time.
Note
Note that the high availability functionality is for the copper ports
only and is not available if SFPs are used.
You may also use the transceivers to connect routers to other network
devices over large distances, build high-speed backbone networks
between network devices, or connect high-speed devices, such as
servers, to your network.
Note
SFP transceivers must be purchased separately. For a list of
supported transceivers, contact your Allied Telesis distributor or
reseller.
Bypass Ports
The routers have two bypass ports. You can use the bypass ports to
connect the master router to backup routers to maintain the incoming
WAN link.
You may connect an ETH port of the master router to the incoming WAN