Installation guide

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Catalyst 6500 Series Switch Module Installation Guide
78-15725-02
Chapter 2 Preparing for Installation
Gigabit Interface Converters
1000BASE-T SFP Modules
The 1000BASE-T SFP transceiver modules provide Category 5, Category 5e, and
Category 6 support for SFP modules. The 1000BASE-T SFP transceiver modules
use standard four twisted-pair cable at lengths up to 328 feet (100 meters) and
have standard RJ-45 connectors. Figure 2-13 shows a 1000BASE-T SFP module.
Figure 2-13 1000BASE-T SFP Transceiver Module
Table 2-14 SFP Optical Transceiver Module Cabling Specifications
SFP Module
Wavelength
(nanometers) Fiber Type
Core Size
(micron)
Modal
Bandwidth
(MHz/km) Cable Distance
1000BASE-SX
(GLC-SX-MM)
850 MMF 62.5
62.5
50.0
50.0
160
200
400
500
722 feet (220 m)
902 feet (275 m)
1640 feet (500 m)
1804 feet (550 m)
1000BASE-LX/LH
GLC-LH-SM)
1300 MMF
1
SMF
1. A mode-conditioning patch cord is required. Using an ordinary patch cord with MMF, 1000BASE-LX/LH SFP modules, and
a short link distance can cause transceiver saturation, resulting in an elevated bit error rate (BER). When using the LX/LH
SFP module with 62.5-micron diameter MMF, you must also install a mode-conditioning patch cord between the SFP module
and the MMF cable on both the sending and receiving ends of the link. The mode-conditioning patch cord is required for link
distances greater than 984 feet (300 m).
62.5
50.0
50.0
9/10
500
400
500
—
1804 feet (550 m)
1804 feet (550 m)
1804 feet (550 m)
32,810 feet (10 km)
1000BASE-ZX
(GLC-ZX-SM)
1550 SMF 9/10 — 43.4 to 62 miles (70
to 100 km)
2
2. 1000BASE-ZX SFP modules can reach up to 100 km by using dispersion-shifted SMF or low-attenuation SMF; the distance
depends on the fiber quality, the number of splices, and the connectors.
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