Appendix B Transceiver, Chassis Connectors, and Cable and Adapter Specifications
Transceiver Support for Uplink Ports
Table B-2lists the specifications for the 1000BASE-T and 1000BASE-X SFP transceivers.
Table B-2 | 1000BASE-T and 1000BASE-X SFP Transceiver Specifications | | |
| | | | | | | |
SFP Transceiver | | Interface | Nominal | Network | Fiber Core | Modal | Cable Distance1 |
Module and Product | Connector | Wavelength | Cable Type | Size | Bandwidth | |
Number | | | (nm) | | (micron) | (MHz/km) | |
| | | | | | | |
1000BASE-T | | RJ-45 | — | Category 5, | — | — | 328 ft (100 m) |
(GLC-T=) | | | | 5e, or 6 | | | |
| | | | UTP/FTP | | | |
| | | | | | | |
1000BASE-SX | | LC duplex | 850 | MMF | 62.5 | 160 | 722 ft (220 m) |
(GLC-SX-MM=) | | | | | 62.5 | 200 | 902 ft (275 m) |
| | | | | 50.0 | 400 | 1640 ft (500 m) |
| | | | | 50.0 | 500 | 1804 ft (550 m) |
| | | | | | |
1000BASE-LX/LH | LC duplex | 1300 | MMF2 | 62.5 | 500 | 1804 ft (550 m) |
(GLC-LH-SM=) | | | | | 50.0 | 400 | 1804 ft (550 m) |
| | | | SMF | 50.0 | 500 | 1804 ft (550 m) |
| | | | | G.6523 | — | 6.21 mi (10 km) |
1000BASE-ZX | | LC duplex | 1550 | SMF | G.6523 | — | 43.4 to 62 mi (70 to |
(GLC-ZX-SM=) | | | | | | | 100 km)4 |
1000BASE-BX10 | LC single | 1490 | SMF | G.6523 | — | 6.21 mi (10 km) |
(GLC-BX-D=) | | | (downstream) | | | | |
| | | | | | |
1000BASE-BX10 | LC single | 1310 | SMF | G.6523 | — | 6.21 mi (10 km) |
(GLC-BX-U=) | | | (upstream) | | | | |
| | | | | | | |
1.Cable distances are based on fiber loss. Additional factors, such as the number of splices and the optical quality of the fiber, can affect cabling distances.
2.A mode-conditioning patch cord is required. Using an ordinary patch cord with MMF, 1000BASE-LX/LH SFP transceivers, and a short link distance can cause transceiver saturation, resulting in an elevated bit error rate (BER). When using the LX/LH SFP transceiver with 62.5-micron diameter MMF, you must also install a mode-conditioning patch cord between the SFP transceiver 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 ft (300 m).
3.ITU-T G.652 SMF as specified by the IEEE 802.3z standard.
4.1000BASE-ZX SFP modules can reach up to 62 miles (100 km) by using dispersion-shifted SMF or low-attenuation SMF; the actual distance depends on the fiber quality, the number of splices, and the connectors.
Catalyst 4948E an Catalyst 4948E-F Switch Installation Guide
