Cabletron Systems TRBMIM-T User Manual page 70

Token ring bridge/management module
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MEDIA SPECIFICATIONS
Table B-4 Single Tolerance For Single-Mode Fiber Optic Cable
Cable Type
Single Mode
8/125-12/125 m
Typical Signal Attenuation Rate: < 0.5 dB/km
Attenuation Testing
Fiber optic cable must be tested with an attenuation test set adjusted for
an 850 nm wavelength for Multimode and 1300 for Single Mode. This
test ensures that a cable's signal loss is within acceptable limits.
B-4
Allowable Attentuation
10.0 dB or less
Maximum Drive Distance
10 km (10936.0 yards)

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