3com Switch 4500 26-Port ユーザーズマニュアル

The 1000BASE-SX SFP transceiver supports a direct connection to a 
multi-mode fiber-optic cable. The 1000BASE-LX SFP transceiver supports 
a direct connection to single-mode and multi-mode fiber-optic cables. 
The 1000BASE-LH70 SFP transceiver supports a direct connection to a 
single-mode fiber-optic cable and the 1000BASE-T SFP transceiver uses 
Category 5 copper cabling with RJ-45 connectors and supports segment 
lengths of up to 100 m (328 ft). Table 14 shows the range for each 
connection:

Table 11   1000BASE-X SFP Port Cable Range

Multi-mode

62.5

160

2m - 220m (6.6 ft - 721.8 ft)

Multi-mode

62.5

200

2m - 275m (6.6 ft - 902.3 ft)

Multi-mode

50

400

2m - 500m (6.6 ft - 1640.5 ft)

Multi-mode

50

500

2m - 550m (6.6 ft - 1804.6 ft)

Multi-mode

62.5

500

2m - 550m (6.6 ft - 1804.6 ft)

Multi-mode

50

400

2m - 550m (6.6 ft - 1804.6 ft)

Multi-mode

50

500

2m - 550m (6.6 ft - 1804.6 ft)

Single-mode

9

-

2m - 10,000m (6.6 ft - 32, 810 ft)

Single-mode

9 core

-

2m - 70 km (6.6 ft - 43 miles)