cabling guidelines C-8
Fiber Optic Cables
In North America, use EIA-569-A horizontal 62.5/125 µm multimode optical fiber
cable (ANSI/EIA/TIA-492AAAA).
Internationally, use ISO/IEC 11801 62.5/125 µm multimode optical fiber cable (IEC
793-2 type A1b, with 1.0db/km attenuation and 500 MHz/km bandwidth). Refer to
Table C-2 for the minimum requirements of fiber optic cable.
Fiber Cable Specifications
Table C-2 lists the electrical requirements of fiber cable.
Table C-2.Electrical Requirements of Fiber Optic Cable
Specification Fiber Optic Cable
Number of strands Two
Cable type 62.5/125 µm multimode
fiber optic cable
Numerical aperture 0.275
Total link budget 11 db
Modal band 500 MHz/km
Zero dispersion wavelength 1295 to 1365 nm
Dispersion slope < 0.093 ps/nm 2 -km
Gigabit Cable Guidelines
Table C-3 lists the distance limitations for Gigabit fiber connections.
Table C-3.Gigabit Cable Guidelines
Multimode Fiber 62.5/125-Micron 50/125-Micron
Operating Range 2 to 260 meters 2 to 550 meters
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