Synology NAS SA3200D, Hardware Installation Manual, Page: 19 / 32

19 Chapter 2: Hardware Setup
4 Connect one end of the power cord(s) to the power port of RXD1219sas, and the other to the power outlet(s).
RXD1219sas will automatically power on once the power cords are correctly connected.
Note:
• RXD1219sas 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.
• Your Synology NAS supports up to two expansion units.
Important: Do not remove the expansion cable while the host device is still powered on. Doing so may result
in data loss.
5 Press the power button on the front panel to power on your SA3200D. The expansion unit ID of RXD1219sas
connected to SA3200D will be displayed in sequence on the back panel.
Note: Even with the Synology NAS and expansion unit(s) powered on, you can still expand with one or two
expansion unit if needed. To do so, repeat above steps to connect the expansion cables and power cords of
the other expansion units. Your expansion units will automatically power on if they are correctly connected,
and the expansion unit ID will be displayed accordingly after a few seconds (if DSM is correctly initialized in the
Synology NAS server).