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10G SFP+ Transceiver-180x180.JPG)
10G XENPAK
40G QSFP+ TransceiverPerformance Feature
Stable
Low cost
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High speed
Hot-pluggable
Good EMI, EMC
Wide appliaction field
DDM function available
Long transmission distance
Good Anti-static performance
Module Knowledge
Recommended
Overload Optical Power
The maximum receivable power is called the Overload Optical Power, also called the Saturation Power, which means max optical power detected by the receiving end of the optical module. The value of the Saturation Power is usually -3dBm.
When the Received Optical Power is greater than the Saturation Power, it will lead to the Error Code. Therefore, for the optical module, whose emitting optical power is very large and without attenuation loopback test, will appear error phenomenon.
According to the worst value design ideas, if Received Optical Power do not overload, the optical module must meet: Max. Transmission Optical Power – Actual Attenuation Value of the optical fiber transmission end < Received Overload Power. Otherwise, it needs to add the fiber optic attenuator.
Usually, for a long distance optical device, there may be the overload. Generally speaking, whether single mode or multimode interface, the received power is more reasonable in the scope of -5-15dBm.
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