Enterasys Networks Enterasys Platinum Distributed Forwarding Engine 7G4285-49 - Manual (Page 31)

100BASE-TX Network
DFE-Platinum Series Hardware Installation Guide 2-3
100BASE-TX Network
The fixed front panel ports of the 7G4285‐49 and 7G4205‐72 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. The fixed front‐panel ports also support the 802.3af‐2003
standard for Power over Ethernet (PoE) power sourcing applications over existing
cabling. For more information about PoE, refer to
Appendix C .
1000BASE-T Network
The 7G4285‐49 and 7G4205‐72 support 10/100/1000 Mbps via fixed RJ45 front panel
connectors. These connectors support 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 network requirements for the devices to operate at Gigabit speed.
Note: The fixed ports of the modules support Category 5 UTP cabling with an impedance
between 85 and 111 ohms for 100 Mbps operation.
The modules are capable of operating at either 10, 100, or 1000 Mbps. The module
automatically senses the speed of the other device and adjusts its speed accordingly.
Note: The fixed ports of each module support Category 5 UTP cabling with an
impedance between 85 and 111 ohms for 100 and 1000 Mbps operation and can
automatically sense the port speed of the other device and adjusts its speed accordingly.