Chapter 1: Getting Started
7
Article Name Location Description
8 Fan
Back
Disposes of excess heat and cools the expansion
unit.Ifthefanmalfunctions,theALERTLED
indicator will show a blinking red light.
9 Power Port
ConnecttheACpowercordhere.
10 Expansion Port
ConnectSynologyDiskStationhere.Forthelist
ofsupportedmodels,pleaseseethe
Hardware
Specications
table at Page 8.
11
DEFAULT/
MANUAL
Switch
Inthedefaultmode,theexpansionunitcanauto
power on/off with the linked DiskStation, while in
themanualmode,theexpansionunitcannotauto
power on with the DiskStation when using as its
independentvolume.Formoreinformation,please
see the Default/Manual Switch Behavior table
below.
LED Indicator Behavior
Indicator Color Status Description
POWER
Blue Static
Powered on
Off
Powered off
STATUS
Green Static
Volumenormal
Orange Blinking
Volumedegraded
Off
Novolumeorvolumecrashed
HDD hibernation
ALERT
Red Blinking
Systemfanmalfunctioning
Off Systemfannormal
Drive status
(on trays)
Green
Static
Drive ready and idle
Blinking
Accessingdrive
Orange Static
Drive error
Off
No internal drive
LINK
Green Static
Connected to Synology DiskStation
Off
Not connected to Synology DiskStation
Default/Manual Switch Behavior
Mode Behavior
Default
Autopoweron/off
Manual
No auto power on