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Cable specifications and interfaces Page 445 of 544
Option 11C and 11C Mini Technical Reference Guide
Table 136 lists the minimum optical requirements for Multimode and Single
Mode glass fiber optic cable used with the Option 11C.
Note: The typical power budget for the glass fiber link is typically 8 dB.
The fiber link is limited to a maximum length of 3 km, even though with
many optical cables the optical power budget of 8 dB could support
greater lengths. To guarantee reliable operation a bandwidth of 150%
should be maintained. If the link is increased beyond the 3 km length the
150% margin is deteriorated possibly resulting in link malfunction under
some conditions.
Table 136
Multimode and Single Mode glass optical cable requirements
Parameter Minimum Typical Maximum Units
Glass Fiber Cable Length 3.0 km
Cable Attenuation @1300 nm 1.5 2.0 dB/km
Modal Bandwidth @1300 nm 200 500 MHz * km
Chromatic Dispersion @1300 nm 6 ps / nm * km
Typical 3dB Optical Bandwidth 180 MHz * km