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Cable and Connectors
Cables and Adapters
A mode-field diameter/cladding diameter = 9 micrometers/125 micrometers.
A mode-conditioning patch cord is required when using 1000BASE-LX/LH SFP modules, MMF, and a short link
distance . Using an ordinary patch cord 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).
1000BASE-ZX SFP modules can send data up to 62 miles (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.
When the fiber-optic cable span is less than 15.43 miles (25 km), insert a 5-decibel (dB) or 10-dB inline optical
attenuator between the fiber-optic cable plant and the receiving port on the 1000BASE-ZX SFP module.
Table 6
Commercial SFPs—Fiber-Optic SFP Module Port Cabling Specifications
Type of SFP Module
Model
1000BASE-BX10-D
GLC-BX-D
1000BASE-BX10-U
GLC-BX-U
1000BASE-LX/LH
GLC-LH-SM
1000BASE-SX
GLC-SX-MM
1000BASE-SX
GLC-SX-MMD
100BASE-BX10-D
GLC-FE-100BX
-D
100BASE-EX
GLC-FE-100EX
100BASE-FX SFP
GLC-FE-100FX
100BASE-LX10
GLC-FE-100LX
Wavelength
Fiber
(nanometers)
Type
1490 TX
SMF
1310 RX
1490 TX
SMF
1310 RX
1310
MMF
SMF
850
MMF
850
MMF
1310 TX
SMF
1550 RX
1310
SMF
1310
MMF
1310
SMF
66
Core
Modal
Size/Claddin
Bandwidth
g Size
(MHz/km)
(micron)
G.652
—
G.652
—
62.5/125
500
50/125
400
50/125
500
G.652
—
62.5/125
160
62.5/125
200
50/125
400
50/125
500
62.5/125
160
62.5/125
200
50/125
400
50/125
500
G.652
—
G.652
—
50/125
500
62.5/125
G.652
—
Cable Distance
6.2 miles (10 km)
6.2 miles (10 km)
1804 feet (550 m)
1804 feet (550 m)
1804 feet (550 m)
6.2 miles (10 km)
722 feet (220 m)
902 feet (275 m)
1640 feet (500 m)
1804 feet (550 m)
722 feet (220 m)
902 feet (275 m)
1640 feet (500 m)
1804 feet (550 m)
6.2 miles (10 km)
24.9 miles (40 km)
6562 feet (2 km)
6.2 miles (10 km)
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