What is typical Transmit Power (dBm) for 1000BASE-SX
I have a particular situtaion that will result in a 9 db loss on a fibre cable between two devices. The data sheet for the 1000BASE-SX SFP states a Transmit Power (dBm) range of -4 to -9.5 . The receiving 1000BASE-SX SFP has a Receive Power Range (dBm)0 to -17. I want to understand the reasons for the -4 to -9.5 range. I am not able to guarantee to my customer that this solution will work, that is if the SFP transmits at -9.5 db.
The solution may work when installed but are there factors that could stop the solution working in the future, e.g. reasonable variations in temperature , deteriation of the device over a few years etc leading to lower Transmit Power (dBm).
Some manufacturers specific typical db levels as well as min and max but I've not found this for the Cisco SFPs.
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