1000Base-T Sfp Modules - Cisco Catalyst 6500 Series Installation Manual

Chapter 2 Preparing for Installation
Table 2-14 SFP Optical Transceiver Module Cabling Specifications
SFP Module
1000BASE-SX
(GLC-SX-MM)
1000BASE-LX/LH
GLC-LH-SM)
1000BASE-ZX
(GLC-ZX-SM)
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).
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.

1000BASE-T SFP Modules

78-15725-02
Wavelength
(nanometers) Fiber Type
850 MMF
1
1300 MMF
SMF
1550 SMF
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 1000BASE-T SFP Transceiver Module
Modal
Core Size Bandwidth
(micron) (MHz/km)
62.5 160
62.5 200
50.0 400
50.0 500
62.5 500
50.0 400
50.0 500
9/10 —
9/10 —
Figure 2-13 shows a 1000BASE-T SFP module.
Catalyst 6500 Series Switch Module Installation Guide
Gigabit Interface Converters
Cable Distance
722 feet (220 m)
902 feet (275 m)
1640 feet (500 m)
1804 feet (550 m)
1804 feet (550 m)
1804 feet (550 m)
1804 feet (550 m)
32,810 feet (10 km)
43.4 to 62 miles (70
2
to 100 km)
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