4
Chapter 1: Before You Start
Synology SA3400 at a Glance
No.
Article Name
Location
Description
1
Power Button and Indicator
Front
1. Press to power on your Synology NAS.
2.
To power off the Synology NAS, press and hold until you hear a beep
sound and the Power LED starts blinking.
2
Status Indicator
Displays the status of the system. For more information, see "LED Indicator
Table."
3
Alert Indicator
Displays warnings regarding fan or temperature. For more information, see
4
Beep Off Button
Press to deactivate the beeping sound that is emitted when a malfunction
occurs.
5
Drive Status Indicator
Displays the status of drives. For more information, see "LED Indicator Table."
6
Drive Tray
Install drives (hard disk drives or solid state drives) here.
7
Rail Kit Release Tab
Push in and hold to release the Synology NAS from the rail kit lock.
1
8
Power Port
Back
Connect power cords here.
9
PSU Indicator and Beep Off
Button
1. Displays the status of the power supply unit (PSU). For more information,
see "LED Indicator Table."
2. Press to deactivate the beeping sound that is emitted when a malfunction
occurs.
10
PSU Fan
Disposes of excess heat and cools the PSU.
11
Console Port
This port is used for manufacturing use only.
12
PCI Express Expansion Slot
Supports additional PCIe network interface cards.
13
SAS OUT Port
Connect to Synology Expansion Unit
2
here.
14
1GbE LAN Port
Connect RJ-45 network cables here.
15
10GBase-T LAN Port
Connect RJ-45 network cables here.
16
USB 3.0 Port
Connect external drives, USB printers, or other USB devices to the Synology
NAS here.
17
RESET Button
1. Press and hold until you hear a beep sound to restore the default IP
address, DNS server, and password for the
admin
account.
2. Press and hold until you hear a beep sound, then press and hold again until
you hear three beep sounds to return the Synology NAS to “Not Installed”
status so that DiskStation Manager (DSM) can be reinstalled.
1
For more information about the rail kit installation, please refer to the Quick Installation Guide that comes with the rail kit.
2
For more information about Synology Expansion Unit supported by your Synology NAS, please visit