Choosing The Correct Cables For The 1000Base-X Sfp Ports - 3Com 4500 Getting Started Manual

Choosing the Correct
Cables for the
1000BASE-X SFP Ports
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 14 1000BASE-X SFP Port Cable Range
Fiber Type
1000BASE-SX
Multi-mode
Multi-mode
Multi-mode
Multi-mode
1000BASE-LX
Multi-mode
Multi-mode
Multi-mode
Single-mode
1000BASE-LH70
Single-mode
Diameter Modal
(microns) Bandwidth
(MHz . km)
62.5 160
62.5 200
50 400
50 500
62.5 500
50 400
50 500
9 -
9 core -
The Power-up Sequence
Transmission Range in meters
(in feet)
2m - 220m (6.6 ft - 721.8 ft)
2m - 275m (6.6 ft - 902.3 ft)
2m - 500m (6.6 ft - 1640.5 ft)
2m - 550m (6.6 ft - 1804.6 ft)
2m - 550m (6.6 ft - 1804.6 ft)
2m - 550m (6.6 ft - 1804.6 ft)
2m - 550m (6.6 ft - 1804.6 ft)
2m - 10,000m (6.6 ft - 32, 810 ft)
2m - 70 km (6.6 ft - 43 miles)
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