ASUSTOR AS5402T User manual

Quick Installation Guide
Applicable Models
AS5402T / AS5404T
Ver.2.3.0903 (2015-3-2)
Ver.4.2.0407 (2023-4-7)

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Table of Contents
NOTICES....................................................................................................................................................................... 3
SAFETY PRECAUTIONS .................................................................................................................................................. 4
1. PACKAGE CONTENTS................................................................................................................................................. 5
2. OPTIONAL ACCESSORIES ........................................................................................................................................... 6
3. HARDWARE INSTALLATION GUIDE............................................................................................................................. 7
TOOLS NEEDED FOR HARD DISK INSTALLATION ................................................................................................................................... 7
HARD DISK INSTALLATION............................................................................................................................................................... 7
SECURING THE POWER CORD .......................................................................................................................................................... 9
CONNECTING AND POWERING ON THE NAS....................................................................................................................................... 9
UPGRADING SYSTEM MEMORY...................................................................................................................................................... 10
INSTALLING M.2 SSD .................................................................................................................................................................. 13
4. SOFTWARE INSTALLATION GUIDE............................................................................................................................ 18
DOWNLOAD CENTER INSTALLATION................................................................................................................................................ 18
WEB INSTALLATION ..................................................................................................................................................................... 20
INSTALLATION USING A MOBILE DEVICE .......................................................................................................................................... 21
5. APPENDIX............................................................................................................................................................... 23
LED INDICATORS......................................................................................................................................................................... 23
FRONT PANEL............................................................................................................................................................................. 24
REAR PANEL............................................................................................................................................................................... 25
SHUTTING DOWN YOUR NAS........................................................................................................................................................ 26
TROUBLESHOOTING ..................................................................................................................................................................... 27

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Notices
Federal Communications Commission Statement
This device complies with FCC Rules Part 15. Operation is subject to the following two conditions:
This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a class A digital device, pursuant to Part 15 of the
Federal Communications Commission (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 interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority
to operate the equipment.
CE Mark Warning
CE marking for devices without wireless LAN/Bluetooth
The shipped version of this device complies with the requirements of the EEC directives 2004/108/EC "Electromagnetic
compatibility" and IEC60950-1:2005 (2nd Edition)+A1:2009 "Information technology equipment-Safety ".”
The Adopted Trademarks HDMI, HDMI High-Definition Multimedia Interface,
HDMI trade dress and the HDMI Logos are trademarks or registered
trademarks of HDMI Licensing Administrator, Inc. in the United States and
other countries.

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Safety Precautions
The following safety precautions will increase the life of the NAS. Follow all precautions and instructions.
Electrical Safety
Unplug this product from the power source before cleaning.
Use only the bundled power adapter. Using other power adapters may damage your device.
Ensure that you plug the power adapter to the correct power input rating. Check the label on the power adapter for the
power rating.
Operation Safety
DO NOT place this product in a location where it may get wet.
Place this product on a flat and stable surface.
Use this product in environments with an ambient temperature between 0°C and 40°C.
DO NOT block the air vents on the case of this product. Always provide proper ventilation for this product.
DO NOT insert any object or spill liquid into the air vents. If you encounter technical problems with this product,
contact a qualified service technician or your retailer. DO NOT attempt to repair this product yourself.
DO NOT throw this product in municipal waste.
This product has been designed to enable proper reuse of parts and recycling. This
symbol of the crossed out wheeled bin indicates that the product (electrical and
electronic equipment) should not be placed in municipal waste. Check local regulations
for disposal of electronic products.

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1. Package Contents
Applicable Models : AS5402T, AS5404T
Model Name
AS5402T
AS5404T
Power Cord
x1
x1
Adapter
x1
x1
RJ45 Network Cable
x2
x2
Screws for use with 2.5”
HDD
x8
x16
Quick Installation Guide
x1
x1

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2. Optional Accessories
The items below may be purchased from the ASUSTOR Accessories Store http://shop.asustor.com.

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3. Hardware Installation Guide
All data stored on the hard disk(s) will be erased and CANNOT be recovered. Please back up all important data before
initializing the system.
Tools Needed for Hard Disk Installation
⚫Phillips head screwdriver
⚫At least one 2.5 or 3.5 inch SATA hard disk. (For a list of compatible hard disks, please see
http://www.asustor.com/service/hd?id=hd)
Hard Disk Installation
1. Remove the front panel as shown in the image below.
AS5402T AS5404T
2. Using the latch, gently pull the disk tray out of the disk bay.
AS5402T AS5404T
3. Mount the hard disk to the disk tray.
To install a 3½" hard drive, please remove the two rails on both sides of the hard drive tray. Place the hard drive
into the tray, align and insert the rails to secure the hard drive and insert it into the NAS.

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To install a 2½" hard drive, please remove the two rails on both sides of the hard drive tray. Align the hard drive
with the 4 holes labeled 2.5" with the SATA connector facing outward. While maintaining a grip on the hard
drive and tray, turn the tray upside down and secure the drive with four included M3 screws as demonstrated
below.
4. Slide the disk tray onto the rails of the disk bay. Using the latch, gently push the disk tray all the way into the disk bay.
Secure the disk tray in place by pushing down on the latch. The latch should close easily and snap in with an audible
‘click’. Please make sure that the disk tray is pushed all the way into the disk bay before attempting to secure the latch.
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5. Return the front panel.
AS5402T AS5404T
Securing the Power Cord
Note: You can use the provided cord bracket to secure the power cord in place, if you are concerned about the NAS
power cord becoming detached when the NAS is moved.
Attach the bracket to the power cord as shown in the graphic below.
AS5402T AS5404T
Connecting and Powering on the NAS
1. Connect the NAS to its power supply.
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2. Connect the NAS to your router, switch or hub using an Ethernet cable.
3. Press and hold down the power button for 1 –2 seconds until the blue power LED indicator is lit. This indicates that the
NAS is now powered on. While the NAS is being powered on, the green system status LED indicator will flash and the blue
network LED indicator will be lit as well.

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AS5402T AS5404T
4. The NAS is ready for operation once the green system status LED indicator has stopped flashing and remains steadily lit.
At this time, you should also hear a ‘beep’ from the system buzzer. Hardware installation is now complete. Please move
on to the software installation guide to configure your system settings.
Upgrading System Memory
Notes and Precautions
All AS54 Series NAS devices support up to 16GB of memory. Before adding or removing memory modules, please read the
following precautions thoroughly.
•Your NAS and memory modules use high precision components and electronic connector technology. To avoid
invalidation of the warranty during your product warranty period, we recommend that:
✓Memory for AS54 series devices may be purchased from local dealers or the online ASUSTOR Accessories Store
(http://shop.asustor.com).
✓You should not install a memory module by yourself, if you are not familiar with upgrading memory on a
computer.
✓You should not touch the connectors or open the memory module compartment cover.
•Addition or removal of memory modules by yourself may result in an accident or malfunction of your NAS caused by
breakage of the slot and module or a connection mistake. In this case, a repair fee will be charged.
•Be careful not to injure your hands or fingers with sharp edges of the memory module, inner components, or circuit
boards of your NAS.
•ASUSTOR does not guarantee that third party memory modules will work in your NAS.
•Be sure to turn off your NAS and peripherals and disconnect all attachments and connection cables before adding or
removing memory modules.
•To prevent damage from electrostatic discharge to memory modules, follow the instructions below:
✓Do not work at a location that produces static electricity easily, such as on a carpet.
✓Before adding or removing memory modules, touch an external metal object other than your NAS to ground
yourself and eliminate static electricity. Do not touch any metal parts inside the NAS.
•Do not insert a memory module into the slot facing in the wrong direction. It may cause damage to the module or slot,
or cause the circuit board to catch fire.

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•Use a screwdriver that matches the size of the screws.
•Do not remove or loosen screws that are not specified to be removed.
Parts and Tools Needed
Phillips head screwdriver
Removing the Cover
1. Shutdown the NAS by selecting [Shut down] from the ADM User Menu.
2. Disconnect all cables and devices connected to the NAS including the power cord.
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3. Use a screwdriver to loosen the three screws found on the rear of the NAS as shown in the illustration.
AS5402T AS5404T
4. Grip the cover from both sides with two hands and then gently push it back to remove it from the chassis.
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AS5404T
Installing Memory
Diagonally slide the new memory module into slot (as shown in the graphic below) making sure that the memory module’s
connectors are fully inserted into the slot. Using two fingers, carefully push down and then back on the memory module until
it clicks into place. You should be able to hear an audible “click”.
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AS5404T
Replacing the Cover
1. Replace the cover and tighten the three screws that were removed previously.
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2. Reconnect all cables including the power cord and then start up the NAS.
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Installing M.2 SSD
M.2 Installation Precautions
The AS5402T and AS5404T provide four M.2 SSD slots. For maximum compatibility, click here for a list of compatible M.2
SSDs.
Parts and Tools Needed
Phillips head screwdriver

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Removing the Cover
1. Shutdown the NAS by selecting [Shut down] from the ADM User Menu.
2. Disconnect all cables and devices connected to the NAS including the power cord.
AS5402T
AS5404T
3. Use a screwdriver to loosen the three screws found on the rear of the NAS as shown in the illustration.
AS5402T
AS5404T

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4. Grip the cover from both sides with two hands and then gently push it back to remove it from the chassis.
AS5402T
AS5404T
Installing M.2 SSDs
1. For the best possible experience, install SSDs in the order as shown in the pictures below.
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2. Insert M.2 SSD at an angle, align the notch with the connector and insert the M.2 drive. Ensure M.2 SSD is fully
inserted, hold plastic lever and press down on the M.2 SSD until it clips into the slot.
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AS5404T
3. Repeat the process for all other M.2 SSDs.
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Replacing the Cover
1. Replace the cover and tighten the three screws that were removed previously.
AS5402T
AS5404T
2. Reconnect all cables including the power cord and then start up the NAS.
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AS5404T

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4. Software Installation Guide
There are 3 different installation methods that you can choose from. Please select the method most suitable for you. You
can go to the download section of the ASUSTOR website (http://www.asustor.com/service/downloads) to download the
latest software.
Download Center Installation
Windows Users
1. After ASUSTOR Control Center has been installed, it will automatically begin to scan your network for ASUSTOR NAS
devices.
2. Select your NAS from the list and follow the installation wizard’s instructions to complete the configuration process.

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Mac Users
1. After ASUSTOR Control Center has been installed, it will automatically begin to scan your network for ASUSTOR
NAS devices.
2. Select your NAS from the list and follow the installation wizard’s instructions to complete the configuration
process.

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Web Installation
1. If you already know your NAS’s current IP address, you can open up a web browser and enter in your NAS’s IP
address (for example: http://192.168.1.168:8000) to begin initialization.
2. Please follow the instructions from the installation wizard to complete the configuration process.