Dahua Gigabit Industrial Managed Switch Quick Start Guide
and confirm the antistatic wrist is well linked to the surface of the gloves.
Step 2
Lift the handle of SFP module upward vertically and make it get stuck to the top hook, hold the SFP
module on both sides and push it gently into the SFP slot till the SFP module is firmly connected to the
slot (it can feel that both the top and bottom spring strip of the SFP module are firmly stuck with the SFP
slot).
3.2.4
GND
Figure 3-8 for the GND terminal.
Figure 3-8
Normal ground connection of the device is the important guarantee of device lightning protection and
anti-interference, therefore the GND wire has to be normally connected by users, and it has to connect to
ground before power on, disconnect ground wire after power off.
There is a GND screw on the device cover board, which is case ground wire and called “case ground”.
Use the ground screw to fix it on the “case ground” after connecting one end of the GND wire to the
cold-pressed terminal, the other end of GND wire is reliably connected to the ground.
Note
The sectional area of the GND wire is more than 2.5mm²; the GND resistance is required to be less than
5Ω.
3.2.5
Power Terminal
Please refer to Figure 3-9 for the power terminal.
