Appendix B Cable and Connectors
Cables and Adapters
Table B-2 | Fiber-Optic SFP Module Port Cabling Specifications (continued) | | |
| | | | | | |
| | | | Core | Modal | |
| | Wavelength | | Size/Cladding | Bandwidth | |
Type of SFP Module | (nanometers) | Fiber Type | Size (micron) | (MHz/km)1 | Cable Distance |
Extended temperature SFPs | | | | |
| | | | | |
100BASE-LX/LH | 1300 | MMF or | 62.2 | 500 | 1804 feet (550 m) |
(SFP-GE-L) | | | SMF | 50 | 400 | 1804 feet (550 m) |
| | | | 50 | 500 | 1804 feet (550 m) |
| | | | 9/10 | — | 6.2 miles (10 km) |
| | | | | | |
100BASE-SX | | 850 | MMF | 62.5 | 160 | 722 feet (220 m) |
(SFP-GE-S) | | | | 62.5 | 200 | 902 feet (275 m) |
| | | | 50.0 | 400 | 1640 feet (500 m) |
| | | | 50.0 | 500 | 1804 feet (550 m) |
| | | | | | |
100BASE-ZX | | 1550 | SMF | 9/10 | — | 43.5 miles (70 km) |
(SFP-GE-Z) | | | SMF | 8 | | 62 miles (100 km) |
| | | | | | |
100BASE-EX | | 1310 | SMF | G.652 | — | 24.9 miles (40 km)2 |
(GLC-EX-SMD) | | | | | |
| | | | | | |
100BASE-ZX | | 1310 | MMF | 62.5 | 500 | 1804 feet (550 m) |
(GLC-LH-SMD) | | | 50.0 | 400 | 1804 feet (550 m) |
| | | | 50.0 | 500 | 1804 feet (550 m) |
| | | SMF | G.652 | — | 6.2 miles (10 km) |
| | | | | | |
100BASE-ZX | | 850 | MMF | 62.5 | 160 | 722 feet (220 m) |
(GLC- SX-SMD) | | | 62.5 | 200 | 902 feet (275 m) |
| | | | 50.0 | 400 | 1640 feet (500 m) |
| | | | 50.0 | 500 | 1804 feet (550 m) |
| | | | 50.0 | 2000 | 3281 feet (1 km) |
| | | | | | |
1.Modal bandwidth applies only to multimode fiber.
2.1000BASE-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.
3.A mode-field diameter/cladding diameter = 9 micrometers/125 micrometers.
4.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).
Note 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.
Cisco IE 2000 Switch Hardware Installation Guide
