QNAP Systems Ts 253 User Guide

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Note: This equipment has been tested and found to comply with the limits for a Class B digital device, 
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection 
against harmful interference in a residential installation. This equipment generates, uses, and can 
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may 
cause harmful interference to radio communications. However, there is no guarantee that...

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Document Annotation 
 
Annotations in this document 
Warning: This indicates the instructions must be strictly followed. Failure to do so could result in 
injury to human body or death. 
Caution: This indicates the action may lead to disk clearance or loss OR failure to follow the 
instructions could result in data damage, disk damage, or product damage. 
Important: This indicates the information provided is important or related to legal regulations.  

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Safety Information and Precautions 
 
1. The NAS can operate normally in the temperature of 0ºC–40ºC and relative humidity of 0%–95%. 
Ensure the environment is well-ventilated. 
2. The power cord and devices connected to the NAS must provide correct supply voltage (100W, 
90–264V). 
3. Do not place the NAS in direct sunlight or near chemicals. Ensure the usage environments 
temperature and humidity is suited for using electronics. 
4. Unplug the power cord and all connected cables before...

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Getting Started 
 
New NAS users are advised to follow the below steps to complete their NAS installation. For users who 
already own a QNAP NAS and would like to move the data to a new QNAP NAS, refer to Migrating NAS 
for detailed instructions. 
 
For New NAS Users:  
1. Hardware Installation 
2. Software Installation 
3. Getting Utilities 
4. Connecting to the Shared Folders 
5. Connecting to the NAS by Web Browser 
 
For Existing NAS Users: 
Migrating NAS  

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Hardware Installation 
 
After unpacking the NAS, first follow these instructions to install your hardware:  
1. Install the hard drives. Before doing so, ensure the hard drives (HDDs) that you use are 
compatible with the NAS. Go to the Hard Disk Drive Compatibility List section for more details. 
2. Connect the QNAP NAS to the same network as your PC and power it on. During your installation 
process, pay attention to LEDs and alarm buzzers to make sure that the NAS functions properly....

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Hard Disk Drive Compatibility List 
 
This product works with 2.5-inch and 3.5-inch SATA hard disk drives and/or solid-state drives (SSD) 
from major hard drive brands. For a full list of compatible drives, check the compatibility list on the 
QNAP website (http://www.qnap.com/compatibility). 
 
Note: If you encounter a Device not found message, ensure that:  
1. Your NAS has been powered on;  
2. The network cable is connected to the NAS and the orange and green indicator lights 
on...

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Checking System Status 
 
LED Display & System Status Overview 
 
LED Color LED Status Description 
System 
Status 
Red/ 
Green 
Flashes green and 
red alternately every 
0.5 sec  
1) The hard disk drive on the NAS is being 
formatted. 
2) The NAS is being initialized. 
3) The system firmware is being updated. 
4) RAID rebuilding is in process. 
5) Online RAID capacity expansion is in process. 
6) Online RAID level migration is in process. 
Red 
1) The hard disk drive is invalid. 
2) The disk...

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LED Color LED Status Description 
mode. 
Power1 Green 
Flashes green The NAS is booting up. 
Green The NAS is on and ready. 
LAN Orange 
Orange The disk data is being accessed from the network. 
Flashes orange The NAS is connected to the network. 
10 GbE Green 
Green The 10GbE network expansion card is installed. 
Off No 10GbE network expansion card is installed. 
HDD Red/ 
Green 
Red A hard drive read/write error occurs. 
Flashes green The disk data is being accessed. 
Green The hard drive can be...

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Beep sound No. of Times Description 
Short beep  
(0.5 sec) 
1 1) The NAS is starting up. 
2) The NAS is being shut down (software shutdown). 
3) The user presses the reset button to reset the NAS. 
4) The system firmware has been updated. 
Short beep  
(0.5 sec) 
3 The NAS data cannot be copied to the external storage device 
from the front USB port. 
Short beep  
(0.5 sec), long 
beep (1.5 sec) 
3, every 5 min The system fan is out of function (TS-119 does not support 
smart fan.) 
Long beep...

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Software Installation 
 
After installing the NAS hardware, proceed to software installation. There are three approaches for 
software installation:  
1. Smart Installation Guide 
2. Cloud Installation 
3. HDMI Installation 
 
Online installation and cloud installation are available for all new NAS models. All users are 
encouraged to use cloud and online installation if possible. Contact our technical support 
department if any problem arises during the installation process...