Installation and Reference Guide
25G SFP28 Modules
It is recommended that before installing the fiber-optic lines, not remove the protecting rubber on the optical port of
optical modules.
It is recommended not insert the 25G SFP28 optical module with fiber optics directly into the slot. Please proceed
with the installation after the optical fiber is pulled out.
In the process of installing the 25G SFP28 optical module, please do not directly touch the connecting finger part of
the 25G SFP28 optical module by hand.
Please do not crush, twist, fold fiber or over bend the fiber, otherwise it may lead to reduced system performance or
loss of transmitted data.
Removing the 25G SFP28 Optical Module
1. Pull out the optical fiber line.
2. Pull the 25G SFP28 optical module handle downward to the horizontal position, gently pull the snap, and then pull out
the 25G SFP28 transceiver module smoothly. As shown in the Figure 4-8
Figure 4-8 Schematic Diagram for Pulling out the 25G SFP28 Optical Module
Precautions for removing
Please pull out the optical fiber before removing the optical module.
Please do not forcibly pull out the module without pulling down the handle of the optical module first so as not to
cause any damage.
Please put the dust caps on the detached module and device optical ports immediately to avoid dirt.
Installing the 25G SFP28 Cable Module
25G SFP28 cables include copper cables and AOC cables. This chapter takes SFP28 copper cables as an example.
1. When installing the plug of the 25G SFP28 copper cable module (with power-on), users can use one hand to hold the
plug of the copper cable module, and the other hand to lift the copper cable to the direction that is vertical with the front
panel of the switch port to make sure the installation direction of the 25G SFP28 module at the end of the copper cable is
correct and then gently and smoothly insert it into the 25G SFP28 slot until a click sound is heard. This indicates that the
25G SFP28 copper cable module is correctly installed. As shown in the Figure 4-9:
Figure 4-9 Schematic Diagram for Installing the 25G SFP28 Copper Cable
