Cisco 1240 - Cable and Adapter Specifications; SFP Cable

B-6
Cisco 1240 Connected Grid Router Hardware Installation Guide
OL-26223-04
Appendix B Connector and Cable Specifications
Cable and Adapter Specifications
Cable and Adapter Specifications
SFP Cable
For detailed information about the SFP ports, see the “Router Hardware Description” chapter.
Table B-9 SFP Port Cabling Specification
SFP Module
Wavelength
(nm)
Cable
Type
Core size/
Cladding Size
(micron)
Modal
Bandwidth
(MHz/km) Cable Distance
1000BASE-SX 850 MMF 62.5/125 160 722 feet (220 m)
62.5/125 200 902 feet (275 m)
50/125 400 1640 feet (500 m)
50/125 500 1804 feet (550 m)
3281 ft (1000 m)
1000BASE-LX/LH 1310 MMF
1
1. A mode-conditioning patch cord is required. Using an ordinary patch cord with MMF or 1000BASE-LX/LH SFP modules
and a short link distance can cause transceiver saturation and 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).
62.5/125 500 1804 feet (550 m)
50/125 400 1804 feet (550 m)
50/125 500 1804 feet (550 m)
SMF G.6522 — 32,808 feet (10,000 km)
1000BASE-EX 1310 SMF — — 131,234 feet (40,000 km)
1000BASE-ZX 1550 SMF G.652
2
— 43.4 to 62 miles
(70 to 100 km)
2
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.
1000BASE-BX-U 1310 SMF — — 32,808 ft (10,000 m)
1000BASE-BX-D 1490 SMF — — 32,808 ft (10,000 m)