Back Panels
S3900-24T4S-R
ON
OFF
S3900-24F4S-R / S3900-48T6S-R
ON
OFF
Button
Power switch
Installation Requirements
Only professionals are allowed to install or replace the switch.
Before you begin the installation, make sure that you have the following:
Screwdriver
Static-proof wristband
Ethernet cable
Other Ethernet terminal devices
Control terminal
Dual Power Supplies
Power Switch
Dual Power Supplies
Description
ON means the power is switched on, while OFF means the power is cut o .
Power Switch
Grounding Point
ON
OFF
Grounding Point
ON
OFF
5