2-5
Installing the Switch 2650
Installation Procedures
Installing the Switch 2650
■ Installation Location - Before installing the switch, plan its location and
orientation relative to other devices and equipment:
• In the front of the switch, leave at least 7.6 cm (3 inches) of space for
the twisted-pair and fiber-optic cabling.
• In the back of the switch, leave at least 3.8 cm (1 1/2 inches) of space
for the power cord.
• On the sides of the switch, leave at least 7.6 cm (3 inches) for cooling,
except if the switch is installed in an open EIA/TIA rack.
Fiber Optic Cables
Gigabit-SX
(on Gigabit-SX-LC
mini-GBIC)
62.5/125 µm or 50/125 µm core/cladding
diameter, graded-index, multimode fiber-optic
cables that are fitted with LC connectors
•62.5 µm cable:
– 160 MHz*km = 220 meters
– 200 MHz*km = 275 meters
•50 µm cable:
– 400 MHz*km = 500 meters
– 500 MHz*km = 550 meters
Gigabit-LX
(on Gigabit-LX-LC
mini-GBIC)
Single-mode cables fitted with LC connectors.
62.5/125 µm or 50/125 µm core/cladding
diameter, graded-index, multimode fiber-optic
cables may also be used, but a mode
conditioning patch cord may be needed — see
“Mode Conditioning Patch Cord for Gigabit-LX”
on page B-3 for more information.
• single-mode cable = 5 kilometers
• multimode cable = 550 meters
Gigabit-LH
(on Gigabit-LH-LC
mini-GBIC)
Single-mode cables fitted with LC connectors. • single-mode cable = 70 kilometers
Port Type Cable Type Length Limits
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