TS-351
User Guide
Document Version: 1
04/09/2018
Contents
1. Preface
About This Guide.......................................................................................................................................... 3
Audience.......................................................................................................................................................3
Document Conventions................................................................................................................................ 3
2. Product Overview
About the TS-351..........................................................................................................................................4
Hardware Specifications............................................................................................................................... 4
Package Contents........................................................................................................................................ 6
Components................................................................................................................................................. 6
Front Panel...............................................................................................................................................7
Rear Panel................................................................................................................................................7
System Board...........................................................................................................................................8
Front Drive Numbering............................................................................................................................. 9
Installation Requirements............................................................................................................................. 9
Setting Up the NAS.......................................................................................................................................9
3. Installation and Configuration
Hardware Installation.................................................................................................................................. 11
Drive Installation..................................................................................................................................... 11
Replacing Memory Modules...................................................................................................................27
QTS Installation.......................................................................................................................................... 33
Installing QTS Using Qfinder Pro........................................................................................................... 33
Installing QTS Using the Cloud Key....................................................................................................... 34
Installing QTS Using an HDMI Connection............................................................................................ 36
4. Basic Operations
Power Button.............................................................................................................................................. 37
Reset Button............................................................................................................................................... 37
USB One Touch Copy Button..................................................................................................................... 37
LEDs........................................................................................................................................................... 38
Beep Alarm................................................................................................................................................. 39
5. Troubleshooting
Forcing Qfinder Pro or myQNAPcloud to Locate the NAS......................................................................... 40
Hot-swapping Failed Drives........................................................................................................................40
Recovering Unintentionally Removed Healthy Drives................................................................................ 41
Support and Other Resources.................................................................................................................... 41
6. Glossary
CloudKey.................................................................................................................................................... 42
CloudLink....................................................................................................................................................42
myQNAPcloud............................................................................................................................................ 42
myQNAPcloud ID........................................................................................................................................42
Qfinder Pro................................................................................................................................................. 42
QTS.............................................................................................................................................................42
7. Notices
Limited Warranty.........................................................................................................................................43
Disclaimer................................................................................................................................................... 43
TS-351 User Guide
1
GNU Public License....................................................................................................................................43
FCC Notice................................................................................................................................................. 51
CE Notice....................................................................................................................................................51
SJ/T 11364-2006.........................................................................................................................................52
2
1. Preface
About This Guide
This guide provides information on the QNAP TS-351 NAS and step-by-step instructions on installing the
hardware. It also provides instructions on basic operations and troubleshooting information.
Audience
This document is intended for consumers and storage administrators. This guide assumes that the user has
a basic understanding of storage and backup concepts.
Document Conventions
Symbol Description
Notes provide default configuration settings and other supplementary
information.
Important notes provide information on required configuration settings and other
critical information.
Tips provide recommendations or alternative methods of performing tasks or
configuring settings.
Warnings provide information that, when ignored, may result in potential loss,
injury, or even death.
TS-351 User Guide
Preface 3
2. Product Overview
This chapter provides basic information about the QNAP TS-351 NAS.
About the TS-351
The TS-351 is equipped with an Intel® Celeron® J1800 dual-core 2.4 GHz processor and can support up to
8 GB of DDR3L memory. The TS-351 provides multimedia support through its HDMI connection and features
USB One Touch Copy for easy and efficient backup and synchronization. In addition to its two memory slots,
the TS-351 comes with two M.2 PCIe SSD slots to accommodate your data management needs.
Hardware Specifications
Important
Modifying the hardware or software of your QNAP product invalidates the warranty. QNAP
is not responsible for any damage or data loss caused by unauthorized modifications and
installation of unsupported third-party applications.
Component TS-351
Ordering Information
Ordering P/N • TS-351-2G
• TS-351-4G
Processor
CPU Intel® Celeron® J1800
Frequency Dual-core 2.41 GHz base/2.58 GHz turbo
Architecture 64-bit x86
Graphics Intel® HD Graphics
Memory
Pre-installed memory • 2 GB RAM: 1 x 2 GB DDR3L
• 4 GB RAM: 1 x 4 GB DDR3L
Use only QNAP memory modules to maintain system performance and
stability. For NAS devices with more than one memory slot, use QNAP
modules with identical specifications.
Using unsupported modules may degrade performance, cause errors, or
prevent the operating system from starting.
Total memory slots 2 x SODIMM DDR3L
Maximum memory 8 GB RAM: 2 x 4 GB
Flash memory 512 MB USB DOM
Storage
Drive bays 3 x 3.5-inch SATA:
• Drive bays 1 and 2: SATA 3 Gbps
• Drive bay 3: SATA 6 Gbps
TS-351 User Guide
Product Overview 4
Component TS-351
Drive compatibility • 3.5-inch SATA hard disk drives
• 2.5-inch SATA hard disk drives
• 2.5-inch SATA solid state drives
Note
TS-351 drive tray caddies require additional drive tray
bases for installing 2.5-inch SATA drives.
You can purchase tray bases from QNAP or an
authorized reseller. For details, go to https://
shop.qnap.com/.
Hot-swappable Yes
M.2 SSD slots 2 x PCIe NVMe 2.0 x1, 5 Gbps
M.2 SSD form factor 2280
SSD cache acceleration
support
Yes
Note
• Drive bays 1 and 2 do not support SSD cache
acceleration.
• SSD cache drives are not hot-swappable.
• M.2 SSDs are not hot-swappable.
Network
Gigabit Ethernet ports 1 x Gigabit RJ45
External I/O Ports & Expansion Slots
USB ports • Front: 1 x USB 3.0 Type-A
Note
This USB port supports One Touch Copy.
• Rear: 2 x USB 2.0 Type-A
HDMI outputs 1 x HDMI 1.4a
Audio • 1 x 3.5 mm line-out jack
• 1 x speaker
Note
You cannot use the speaker and the line-out jack
simultaneously.
Interface
Buttons • Power
• Reset
• USB One Touch Copy
Dimensions
Form factor Tower
TS-351 User Guide
Product Overview 5
Component TS-351
Dimensions (H x W x D) 142 x 150 x 260.1 mm
(5.59 x 5.90 x 10.24 in)
Net weight 1.64 kg (3.62 lbs)
Other
Power supply unit 65W, 100-240V AC, 50/60 Hz
System battery CR2032 lithium battery (3V, 225 mAh)
Warning
To avoid potential injury or damage to components,
ensure that you replace the existing battery with a battery
of the same type.
Sound level 21.8 dB(A)
Note
The sound level was tested at a bystander position,
which is within one meter of the NAS. The test NAS
operated at low speed with the maximum number of
drives installed.
Fans System: 1 x 90 mm, 12V DC smart fan
Warning
To avoid potential injury or damage to components, do
not touch the fan while the NAS is connected to a power
source.
Operating temperature 0˚C to 40˚C (32˚F to 104˚F)
Relative humidity • Non-condensing relative humidity: 5% to 95%
• Wet-bulb temperature: 27˚C (80.6˚F)
Security slot Kensington security slot
Tip
Model specifications are subject to change without prior notice. To see the latest
specifications, go to https://www.qnap.com.
Package Contents
Item Quantity
TS-351 NAS 1
Drive tray caddy pins 3
AC power adapter 1
Power cord 1
Ethernet cables 1
Heatsinks for M.2 SSDs 2
Quick Installation Guide (QIG) 1
Components
TS-351 User Guide
Product Overview 6
Front Panel
No. Component No. Component
1 Status LED 7 M.2 SSD 1 LED
2 LAN LED 8 M.2 SSD 2 LED
3 USB LED 9 Power button
4 Drive 1 LED 10 USB One Touch Copy button
5 Drive 2 LED 11 USB One Touch Copy port
6 Drive 3 LED - -
Rear Panel
TS-351 User Guide
Product Overview 7
No. Component No. Component
1 Reset button 6 Power input
2 3.5 mm line-out jack 7 Speaker
3 HDMI 1.4a port 8 Kensington security slot
4 Gigabit Ethernet RJ45 port 9 Smart fan
5 USB 2.0 Type-A ports - -
System Board
Note
This image does not include the chassis.
No. Component No. Component
1 M.2 SSD slot 1 3 Memory slot 1
2 M.2 SSD slot 2 4 Memory slot 2
TS-351 User Guide
Product Overview 8
Front Drive Numbering
Note
This image shows the NAS positioned on its left side.
Installation Requirements
Category Item
Environment • Room temperature: 0˚C to 40˚C (32˚F to 104˚F)
• Non-condensing relative humidity: 5% to 95%
• Wet-bulb temperature: 27˚C (80.6˚F)
• Flat, anti-static surface with no exposure to direct sunlight, liquids,
or chemicals
Hardware and peripherals • Storage drives
For details on compatible drives, go to https://www.qnap.com/
compatibility/.
• Network cable
Tools • Flat head screwdriver
• Anti-static wrist strap
Setting Up the NAS
1. Place your NAS device in an environment that meets the requirements.
For details, see Installation Requirements.
2. Install the drives.
For details, see the following topics:
•Installing 3.5-inch Hard Drives on 3.5-inch Trays
TS-351 User Guide
Product Overview 9
3. Installation and Configuration
This chapter provides specific hardware and firmware installation and configuration steps.
Hardware Installation
This section provides information on installing drives and replacing memory modules.
Drive Installation
The TS-351 is compatible with 3.5-inch and 2.5-inch hard drives, 2.5-inch solid-state drives, and M.2 solid-
state drives.
Installing 3.5-inch Hard Drives on 3.5-inch Trays
Warning
• Installing a drive deletes all data on the drive.
• Observe electrostatic discharge (ESD) procedures to avoid damage to components.
1. Power off the NAS.
2. Remove the case cover.
a. Position the NAS on its left side.
b. Remove the screws that secure the case cover to the chassis.
c. Slide the cover to the right to detach it from the chassis.
d. Lift the cover off the NAS.
TS-351 User Guide
Installation and Configuration 11
3. Remove a drive tray caddy.
a. Squeeze the clips.
b. Pull out the caddy.
4. Install a drive on the drive tray caddy.
a. Gently pull the sides of the caddy to release the rod.
b. Remove the rod.
TS-351 User Guide
Installation and Configuration 12
c. Place the drive in the caddy.
d. Align the holes on the drive with the pins on the caddy.
e. Insert the pins.
TS-351 User Guide
Installation and Configuration 13
5. Slide the drive tray caddy into the drive bay.
6. Attach the case cover.
a. Place the cover on the NAS.
b. Align the cover with the grooves on the case.
c. Slide the cover to the left to secure it to the chassis.
TS-351 User Guide
Installation and Configuration 14
d. Attach the screws to the back of the NAS.
e. Place the NAS in its normal upright position.
7. Power on the NAS.
Installing 2.5-inch Drives on 3.5-inch Trays
Important
TS-351 drive tray caddies require additional 2.5-inch drive tray bases for installing 2.5-inch
drives. Tray bases are an optional, separate purchase and are not included in the
packaging for the TS-351. Tray bases can be purchased from QNAP or an authorized
reseller. For details, go to https://shop.qnap.com/.
TS-351 User Guide
Installation and Configuration 15
Warning
• Installing a drive deletes all data on the drive.
• Observe electrostatic discharge (ESD) procedures to avoid damage to components.
1. Power off the NAS.
2. Remove the case cover.
a. Position the NAS on its left side.
b. Remove the screws that secure the case cover to the chassis.
c. Slide the cover to the right to detach it from the chassis.
d. Lift the cover off the NAS.
TS-351 User Guide
Installation and Configuration 16
7. Attach the case cover.
a. Place the cover on the NAS.
b. Align the cover with the grooves on the case.
c. Slide the cover to the left to secure it to the chassis.
d. Attach the screws to the back of the NAS.
TS-351 User Guide
Installation and Configuration 18
e. Place the NAS in its normal upright position.
8. Power on the NAS.
Attaching 2.5-inch Drive Tray Bases
1. Gently pull the sides of the drive tray caddy to release the rod.
2. Remove the rod.
3. Remove the rear right pin from the tray caddy.
TS-351 User Guide
Installation and Configuration 19
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