A –4 dBm signal is sent through a fiber link. The fiber has two splices, each with 0.6 dB loss. The link also passes through a patch panel with 0.7 dB loss. The fiber has a loss of 4.5 dB due to attenuation. What's the signal strength at the far end of the fiber?
A –4 dBm signal is sent through a fiber link. The fiber has two splices, each with 0.6 dB loss. The link also passes through a patch panel with 0.7 dB loss. The fiber has a loss of 4.5 dB due to attenuation. What's the signal strength at the far end of the fiber?
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1.a. A 25/75 T coupler is used to split a 3 dBm signal from a fiber optic cable. What signal strength is output
from each port?
A. –6.7 dBm and –1.7 dBm
B. 9.7 dBm and 4.7 dBm
C. 6.7 dB and 1.7 dB
D. –3.7 dBm and 1.3 dBm
1.b. A –4 dBm signal is sent through a fiber link. The fiber has two splices, each with 0.6 dB loss. The link
also passes through a patch panel with 0.7 dB loss. The fiber has a loss of 4.5 dB due to attenuation.
What's the signal strength at the far end of the fiber?
A. –9.8 dBm
B. –2.4 dBm
C. –5.9 dBm
D. –10.4 dBm
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