Ethernet And Fast Ethernet - Cisco Catalyst 6500 Series Installation Manual

Determining Cable Distances

Ethernet and Fast Ethernet

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