Huawei S2720 Series Hardware Description page 32

S2720&S2750 Series Ethernet Switches
Hardware Description
Table 2-7 Attributes of a 10/100BASE-TX Ethernet electrical port
Attribute
Connector type
Standards
compliance
Electrical port
attributes
Working mode
Maximum
transmission
distance
1000BASE-X Ethernet Optical Port
A 1000BASE-X Ethernet optical port can send and receive data at only 1000 Mbit/s and cannot
work at 100 Mbit/s.
Table 2-8 Attributes of a 1000BASE-X Ethernet optical Port
Attribute
Connector type
Optical port
attributes
Standards
compliance
Working mode
Combo Port
A combo port consists of an optical Ethernet port and an electrical Ethernet port on the panel.
Each combo port matches only one internal forwarding port. The electrical and optical ports of
a combo port are multiplexed, and only one of them can work at a time. When one of the Ethernet
ports is working, the other port is shut down.
Issue 08 (2015-02-12)
Item
RJ45
IEEE802.3, IEEE802.3u, IEEE802.3ab
MDI/MDIX
NOTE
l A medium dependent interface (MDI) provides the physical and electrical
connection to the cabling medium. Ethernet ports of most NICs are MDIs.
l A medium dependent interface crossover (MDIX) enables connection
between like devices. MDIX ports are usually used on hubs or LAN switches.
10/100 Mbit/s auto-sensing
Full-duplex
100 m
Table 2-8 lists the attributes of a 1000BASE-X Ethernet optical port.
Item
LC/PC
Depend on the optical module used (see
IEEE802.3z
1000 Mbit/s
Full-duplex
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2 Chassis
SFP/eSFP Optical Module)
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