Check whether the golden fingers, end face, pull rings, etc. of the SFP's are not damaged before installation；
Install the SFP's on the optical port of the device；
The effect after correct installation；
Attention! After the SFP's is installed, please take dust-proof measures before fiber patch cord inserted；
Fiber patch cord installed；
When taking out the SFP's, please remove the fiber patch cord first, and then take out the SFP's；
