Installation guide

2-4
Catalyst 3560 Switch Hardware Installation Guide
OL-6337-03
Chapter 2 Switch Installation
Preparing for Installation
Warning Ethernet cables must be shielded when used in a central office environment. Statement 171
Warning Avoid direct exposure to the laser beam. Statement 1012
Warning Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into
beams or view directly with optical instruments. Statement 1051
Installation Guidelines
When determining where to place the switch, be sure to observe these requirements:
• For copper Ethernet ports, including 10/100 ports, 10/100/1000 ports, and 1000BASE-T SFP
module ports, cable lengths from the switch to connected devices can be up to 328 feet (100 meters).
• Table 2-1 lists the cable specifications for 1000BASE-SX, 1000BASE-LX, 1000BASE-ZX, and
100BASE-FX fiber-optic SFP module connections. Each port must match the wave-length
specifications on the other end of the cable, and for reliable communications, the cable must not
exceed the required cable length.
Table 2-1 Fiber-Optic SFP Module Port Cabling Specifications
SFP Module
Wavelength
(nanometers) Fiber Type
Core Size
(micron)
Modal
Bandwidth
(MHz/km) Cable Distance
1000BASE-SX 850 MMF 62.5
62.5
50
50
160
200
400
500
722 feet (220 m)
902 feet (275 m)
1640 feet (500 m)
1804 feet (550 m)
1000BASE-LX/LH 1300 MMF
1
SMF
62.5
50
50
9/10
500
400
500
—
1804 feet (550 m)
1804 feet (550 m)
1804 feet (550 m)
32,810 feet (10 km)
1000BASE-ZX 1550 SMF 9/10 — 43.4 to 62 miles (70
to 100 km)
2
100BASE-FX Min.: 1270
Typical: 1300
Max.: 1380
MMF 50/125
62.5/125
500 6,562 feet (2 km)