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Fiber Cabling Guidelines
such as IP phones and wireless access points, which translates into greater network
availability.
The switch provides four slots for SFP-compliant fiber-optic transceivers.
Note that all 1000BASE fiber optic ports operate at 1 Gbps full duplex. The 100BASE
fiber optic ports operate at 100 Mbps full duplex.
Table 11: Maximum Gigabit Ethernet Fiber Cable Lengths
Cable Type
1000BASE-SX
62.5/125 micron multimode
50/125 micron multimode
1000BASE-LX
9/125 micron single-mode
1000BASE-LH
9/125 micron single-mode
Table 12: Maximum Fast Ethernet Fiber Cable Lengths
Type
Cable Type
100BASE-FX
50/125 or 62.5/125 micron multimode
9/125 micron single-mode
Note:
The length of fiber optic cable for a single switched link should not exceed
the relevant standards specified in this section. However, power budget constraints
should also be considered when calculating the maximum fiber optic cable length
for a particular link.
Note:
Maximum distances may vary for different SFP vendors.
To ensure proper operation when installing the switch into a network, make sure
that the current fiber cables are suitable for 1000BASE or 100BASE operation. Check
the following criteria against the current installation of your network:
◆
Be sure to secure fiber cables properly and route them away from the switch.
Fiber Bandwidth
Maximum Cable Length
160 MHz/km
2-220 m (7-722 ft)
200 MHz/km
2-275 m (7-902 ft)
400 MHz/km
2-500 m (7-1641 ft)
500 MHz/km
2-550 m (7-1805 ft)
N/A
2 m - 10 km
(7 ft - 6.2 miles)
N/A
2 m - 80 km
(7 ft - 50 miles)
Max. Cable Length
2 km
20 km
– 34 –
Chapter 6
| Port Connections
Fiber Cabling Guidelines
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