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)