Installation guide

Chapter 2 Preparing for Installation
Determining Cable Distances
2-4
Catalyst 6500 Series Switch Module Installation Guide
78-15725-02
Ethernet and Fast Ethernet
Table 2-3 lists the IEEE maximum transmission distances for Ethernet and
Fast Ethernet.
Table 2-4 lists the optical characteristics for 10BASE-FL. Table 2-5 lists the
optical characteristics for 100BASE-FX.
Table 2-3 Ethernet and Fast Ethernet Maximum Transmission
Distances
Transceiver
Speed Cable Type Duplex Mode
Maximum Distance
Between Stations
10 Mbps Category 3 UTP Full and half 328 ft (100 m)
10 Mbps Multimode fiber Full and half 1.2 mi (2 km)
100 Mbps Category 5 UTP Full and half 328 ft (100 m)
100 Mbps Single-mode fiber Full 6.2 mi (10 km)
100 Mbps Multimode fiber
Single-mode fiber
Half 1312 ft (400 m)
Table 2-4 10BASE-FL Optical Characteristics
Characteristic Specification
Optical source LED
Wavelength 850 nm
Transmitter output power –20 to –12 dBm
Receiver sensitivity –32.5 to –12 dBm