Installation guide

100BASE-TX Network
2-2 Network Requirements
100BASE-TX Network
Fixed front panel ports of the 4H4282-49, 4H4283-49, 4H4203-72, and 4H4202-72 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. Refer to the Cabling Guide for
details.
1000BASE-SX/LX Fiber-Optic Network
Optional Mini-GBICs provide a Gigabit Ethernet connection to the optional 7G-6MGBIC
interface module to provide fiber-optic connections operating at 1000 Mbps (1 Gbps). 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 further details on Mini-GBIC specifications.
1000BASE-TX Network
Optional Mini-GBICs can also provide a copper-wire connection that supports Category 5
UTP cabling. The device at the other end of the twisted pair segment must meet
IEEE 802.3-2002 1000BASE-TX Fast Ethernet network requirements for the devices to
operate at 1000 Mbps. Refer to Appendix A for further details on Mini-GBIC
specifications.
100BASE-FX Fiber-Optic Network
The 4H4284-49 DFE-Gold module provides 48 ports that support 100 Mbps multimode
fiber-optic connectivity through 48 fixed front-panel MT-RJ connectors, which support
100BASE-FX fiber-optic cabling. The device at the other end of the fiber-optic segment
must meet 100BASE-FX Fast Ethernet network requirements for the devices to operate at
100 Mbps. IEEE 802.3u 100BASE-FX characteristics for Multimode Fiber is a segment
length of 412 meters (switched port) in half duplex, 2 kilometers (switched port) in full
duplex. This distance will be considerably shorter from a repeater port. Make sure to
check your network diameter specifications. Refer to the Cabling Guide for details.
Note: The fixed ports of the module support Category 5 UTP cabling with an impedance
between 85 and 111 ohms for 100 Mbps operation.
The module is capable of operating at either 10 or 100 Mbps. The module automatically
senses the speed of the other device and adjusts its speed accordingly.