Synology DS120j Manual

Synology NAS DS120j
Hardware Installation Guide

Table of Contents
Chapter 1: Before You Start
Package Contents 3
Synology DS120j at a Glance 4
Hardware Specication 5
Safety Instructions 6
Optional Accessories 7
Chapter 2: Hardware Setup
Tools and Parts for Component Installation 8
Install Drives 8
Start Up Your Synology NAS 10
LED Indicator Table 11
Chapter 3: System Maintenance
Replace the Malfunctioning Fan 12
Initial Troubleshooting Guide 13
Chapter 4: Install DSM on Synology NAS
Install DSM with Web Assistant 14
Learn More 14
Synology_HIG_DS120j_20190712
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Thank you for purchasing this Synology product! Before setting up your new DS120j, please check the package
contents to verify that you have received the items below. Also, make sure to read the safety instructions carefully
to avoid harming yourself or damaging your Synology NAS.
Note: All images below are for illustrative purposes only, and may di󰀨er from the actual product.
Package Contents
Main unit x 1 AC power adapter x 1
RJ-45 LAN cable x 1
Screws for hard drives x 6
Screws for case x 3
Before You Start 1
Chapter
3
3

4Chapter 1: Before You Start
Synology DS120j at a Glance
No. Article Name Location Description
1 Status Indicator
Front Panel
Displays the status of the system. For more information, see "LED Indicator
Table".
2 LAN Indicator Displays the status of the network connection. For more information, see "LED
Indicator Table".
3 Disk Indicator Displays the status of the installed drive. For more information, see "LED
Indicator Table".
4 Power Button
1. Press to power on the Synology NAS.
2. To power o󰀨 the Synology NAS, press and hold until you hear a beep sound
and the Power LED starts blinking.
5 Fan
Back Panel
Disposes of excess heat and cools the system. If the fan malfunctions, the
Synology NAS will emit a beeping sound.
6 LAN Port Connect a network cable here.
7 USB 2.0 Port Connect external hard drives or other USB devices to the Synology NAS here.
8 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.
9 Kensington
Security Slot Attach a Kensington security lock here.
10 Power Port Connect the AC power adapter here.

5Chapter 1: Before You Start
Hardware Specication
Item DS120j
Compatible Drive Type 3.5" / 2.5" SATA x 1
Maximum Internal Raw Capacity 16TB (1 x 16TB HDD)
External Ports USB 2.0 x 2
LAN Port 1GbE (RJ-45) x 1
Size (H x W x D) (mm) 166 x 71 x 224
Weight (kg) 0.7
Supported Clients • Windows 7 and 10
• Mac OS X 10.11 onward
File Systems • Internal: ext4
• External: ext3, ext4, FAT, NTFS, HFS+, exFAT1
Supported RAID Types Basic
Agency Certications • FCC Class B • CE Class B • BSMI Class B • EAC • VCCI • CCC
• RCM • RoHS Compliant
HDD Hibernation Yes
Scheduled Power On/O󰀨 Yes
Wake on LAN Yes
Language Localization
Environment Requirement
• Line voltage: 100V to 240V AC
• Frequency: 50 to 60Hz
• Operating Temperature: 32 to 104˚F (0 to 40˚C)
• Storage Temperature: -5 to 140˚F (-20 to 60˚C)
• Relative Humidity: 5% to 95% RH
Note: Model specications are subject to change without notice. Please refer to www.synology.com for the latest information.
1The support for exFAT can be enabled after you have purchased and downloaded exFAT Access in Package Center.

6Chapter 1: Before You Start
Safety Instructions
Keep away from direct sunlight and away from chemicals. Make sure the environment does not
experience abrupt changes in temperature or humidity.
Place the product right side up at all times.
Do not place near any liquids.
Before cleaning, unplug the power cord. Wipe with damp paper towels. Do not use chemical or
aerosol cleaners.
To prevent the unit from falling over, do not place on carts or any unstable surfaces.
The power cord must plug in to the correct supply voltage. Make sure that the supplied AC voltage is
correct and stable.
To remove all electrical current from the device, ensure that all power cords are disconnected from
the power source.
Risk of explosion if battery is replaced with an incorrect type. Dispose of used batteries appropriately.

7Chapter 1: Before You Start
Spare Parts
Visit www.synology.com/products/spare_parts if you need to replace system fans, disk trays, or power supply
units.
Model Name Picture Description
Adapter 36W Set Adapter 36W Wall Mounted Level VI
Disk Holder (Type C) 2.5" Disk Holder Type C
Fan 60*60*15_1 System Fan

Tools and Parts for Component Installation
Please prepare the tools and parts below before setting up your Synology NAS:
• A Screwdriver
• At least one 3.5” or 2.5” SATA drive (please visit www.synology.com/compatibility for compatible drive
models).
Warning: If you install a drive that contains data, the system will format the drive and erase all existing data. Please
back up any important data before installation.
Install Drives
1 Push the upper case in the direction as shown below. Lift the upper case and set it aside.
2 Install drives:
• For 3.5” drives with 3 screw holes on each side (indicated below):
a Slide the drive into the hard drive bay, and push it all the way until it’s rmly connected to the SATA
connector.
b Secure the drive with the screws provided.
• For 3.5” drives with 2 screw holes on each side (indicated below):
a Slide the drive into the hard drive bay, and push it all the way until it’s rmly connected to the SATA
connector.
b Secure the drive with the screws provided.
Hardware Setup
8
2
Chapter

9Chapter 2: Hardware Setup
• For 2.5” drives:
a Place the drive in the 2.5" Disk Holder (Type C, sold separately), and then tighten the 2.5" screws to
secure the drive.
b Slide the 2.5" Disk Holder into the hard drive bay, and push it all the way until the drive is rmly connected
to the SATA connector. Secure the Disk Holder with the screws provided.
3 Replace the upper case, and tighten the screws on the back panel.

10 Chapter 2: Hardware Setup
Start Up Your Synology NAS
1 Push the button on the adapter provided in the package and pull out the plug case as illustrated below.
2 Slide the plug adapter provided into the slots by pushing it downward. Note that the plug adapter that comes
with your Synology NAS varies depending on your region. The image below is for reference only.
3 Connect one end of the AC power adapter to the power port of the Synology NAS. Connect the other end to a
power outlet.
4 Use the LAN cable to connect the Synology NAS to your switch, router, or hub.
5 Press the power button to turn on the Synology NAS.
Congratulations! Your Synology NAS is now online and detectable from a network computer.