Enterasys Networks 2G4072-52 - Manual (Page 26)

10BASE-T Network
2-2 Network Requirements
For details about the commands involved with configuring the Link Aggregation
function, refer to the Enterasys Matrix N Standalone Series Configuration Guide.
10BASE-T Network
When connecting a 10BASE‐T segment to any RJ45 front panel ports of the 2G4072‐52,
ensure that the network meets the Ethernet network requirements of the IEEE 802.3‐2002
standard for 10BASE‐T. Refer to the Cabling Guide for details.
100BASE-TX Network
The RJ45 front panel ports provide a connection that supports Category 5 UTP cabling.
The device at the other end of the twisted pair segment must meet IEEE 802.3‐2002
100BASE‐TX Fast Ethernet network requirements for the devices to operate at 100 Mbps.
Refer to the Cabling Guide for details.
1000BASE-SX/SX+/LX Network
The four Mini‐GBICs provide Gigabit Ethernet fiber‐optic connections operating at
1000 Mbps (1 Gbps). Other Mini‐GBICs may support different types of cabling
connections. The device at the other end of the fiber‐optic connection must meet IEEE
802.3‐2002 Gigabit Ethernet requirements for the devices to operate at Gigabit speed.
Refer to
Appendix A for Mini‐GBIC specifications.
1000BASE-T Network
The 2G4072‐52’s 48 ports support 10/100/1000 Mbps through RJ45 front panel connectors.
These links accommodate copper wire connections that can operate up to 1000 Mbps. The
device at the other end of the twisted pair segment must meet IEEE 802.3‐2002
10/100/1000BASE‐T network requirements for the devices to operate at Gigabit speed.
Note: If a port operates at 100 Mbps, Category 5 cabling must be used. Category 3
cabling does not meet 100 Mbps specifications. For 10 Mbps operations only, Category 3
or Category 5 cabling can be used.
Note: The RJ45 ports support Category 5 UTP cabling with an impedance between 85
and 111 ohms for 100 Mbps operation.
The 2G4072-52 is capable of operating at either 10 or 100 Mbps. It automatically senses
the speed of the connected device and adjusts its speed accordingly.
Note: The 48 ports of the device support Category 5 UTP cabling with an impedance
between 85 and 111 ohms for 100 and 1000 Mbps operation.
Ports 1 through 48 can operate at either 10, 100, or 1000 Mbps. The device automatically
senses the speed of the connected device and adjusts its speed accordingly.