User's Manual

21
Chapter 2: Hardware Setup
Note:
• Once the Synology NAS is powered on/o󰀨, your expansion units will automatically power on/o󰀨 if they are
connected correctly.
• With your Synology NAS and expansion units powered on, it is still possible to add one or more expansion
units when needed. To do so, repeat the above steps to connect the expansion cables and power cords
of the additional expansion units. Your expansion units will automatically power on if they are connected
correctly (if DSM is correctly installed on the Synology NAS server).
• Do not remove the expansion cable while the host device is still powered on. Doing so may result in data
loss.
Start up Your Synology NAS
1
Connect one end of each power cord to the power ports located on the back of the RS4021xs+ and the other
end to a power outlet.
2
Connect at least one LAN cable to one of the LAN ports and the other end to your switch, router, or hub.
3
Press the power button to turn on the RS4021xs+.
Congratulations! Your Synology NAS is now online and detectable from a network computer.