User's Manual
Table Of Contents
20
Chapter 2: Hardware Setup
Expansion Unit Deployment and Topology
RS4021xs+ supports RX1217/RX1217RP (12-bay) expansion units, providing seamless storage expansion
whenever needed. This section will guide you through how to connect the expansion units to your Synology NAS.
To connect RX1217/RX1217RP with RS4021xs+
1
Here we use RX1217RP as an example to illustrate how to connect to the expansion units. Connect one end
of the expansion cable to the expansion port of the RS4021xs+ and the other to the expansion port of the
expansion units.
RX1217RP
RX1217RP
RS4021xs+
2
Connect the power cords:
a
For RX1217RP, connect one end of both power cords to a power port on the RX1217RP, and the other to
a power outlet.
Note:
Your RX1217RP comes equipped with a redundant power supply system, allowing two power cords to
be connected. The system may be powered on with only one power cord, but we recommend using two power
cords to avoid unexpected power failures.
b
For RX1217, connect one end of power cord to a power port on the RX1217, and the other to a power
outlet. Press the PSU switch located on the back panel to switch the PSU on.