Advantech UNO-1251G User manual

User Manual
UNO-1251G
嵌入式工業電腦
ARM®Coretex®-A8 Micro DIN-
Rail Industrial IoT gateway w/
2 x LAN, 1 x USB, 1 x CAN, 3 x
COM, 2 x MicroSD,
1 x MicroSIM

UNO-1251G User Manual ii
Copyright
The documentation and the software included with this product are copyrighted 2016
by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right
to make improvements in the products described in this manual at any time without
notice. No part of this manual may be reproduced, copied, translated or transmitted
in any form or by any means without the prior written permission of Advantech Co.,
Ltd. Information provided in this manual is intended to be accurate and reliable. How-
ever, Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringe-
ments of the rights of third parties, which may result from its use.
Acknowledgements
ARM®and Cortex® are the trademark of ARM Limited.
All other product names or trademarks are properties of their respective owners.
Support
For more information on this and other Advantech products, please visit our websites
at: http://www.advantech.com
For technical support and service, please visit our support website at:
http://support.advantech.com/
* UNO-1251G
UNO-1251G-A0AE
UNO-1251G-A5AE
UNO1251GA0A1601E-T UNO1251GA0A1701E-T
UNO1251GA0A1602E-T UNO1251GA0A1702E-T
UNO1251GA0A1603E-T UNO1251GA0A1703E-T
UNO1251GA0A1604E-T UNO1251GA0A1704E-T
UNO1251GA0A1605E-T UNO1251GA0A1705E-T
UNO1251GA0A1606E-T UNO1251GA0A1706E-T
UNO1251GA5A1601E-T UNO1251GA5A1701E-T
UNO1251GA5A1602E-T UNO1251GA5A1702E-T
UNO1251GA5A1603E-T UNO1251GA5A1703E-T
UNO1251GA5A1604E-T UNO1251GA5A1704E-T
UNO1251GA5A1605E-T UNO1251GA5A1705E-T
UNO1251GA5A1606E-T UNO1251GA5A1706E-T
UNO1251GA5A1801E-T UNO1251GA5A1901E-T
UNO1251GA5A1802E-T UNO1251GA5A1902E-T
WA-HU1251G-R15H0AE WA-HU1251G-R15H001
WA-HU1251G-R15H0BE WA-HU1251G-R15H002
WA-HU1251G-R15H0CE WA-HU1251G-R15H003
WA-HU1251G-R15H0DE WA-HU1251G-R15H004
WA-HU1251G-R50H0AE WA-HU1251G-R15H005
Part No. 2003W25100 Edition 1
Printed in China May 2016

iii UNO-1251G User Manual
WA-HU1251G-R50H0BE WA-HU1251G-R15H006
WA-HU1251G-R50H0CE WA-HU1251G-R15H007
WA-HU1251G-R50H0DE WA-HU1251G-R15H008
WA-HU1251G-R15H009 WA-HU1251G-R15H010
Product Warranty (2 years)
Advantech warrants to you, the original purchaser, that each of its products will be
free from defects in materials and workmanship for two years from the date of pur-
chase.
This warranty does not apply to any products which have been repaired or altered by
persons other than repair personnel authorized by Advantech, or which have been
subject to misuse, abuse, accident or improper installation. Advantech assumes no
liability under the terms of this warranty as a consequence of such events.
Because of Advantech’s high quality-control standards and rigorous testing, most of
our customers never need to use our repair service. If an Advantech product is defec-
tive, it will be repaired or replaced at no charge during the warranty period. For out-
of-warranty repairs, you will be billed according to the cost of replacement materials,
service time and freight. Please consult your dealer for more details.
If you think you have a defective product, follow these steps:
1. Collect all the information about the problem encountered. (For example, CPU
speed, Advantech products used, other hardware and software used, etc.) Note
anything abnormal and list any onscreen messages you get when the problem
occurs.
2. Call your dealer and describe the problem. Please have your manual, product,
and any helpful information readily available.
3. If your product is diagnosed as defective, obtain an RMA (return merchandize
authorization) number from your dealer. This allows us to process your return
more quickly.
4. Carefully pack the defective product, a fully-completed Repair and Replacement
Order Card and a photocopy proof of purchase date (such as your sales receipt)
in a shippable container. A product returned without proof of the purchase date
is not eligible for warranty service.
5. Write the RMA number visibly on the outside of the package and ship it prepaid
to your dealer.
Declaration of Conformity
CE
This product has passed the CE test for environmental specifications when shielded
cables are used for external wiring. We recommend the use of shielded cables. This
kind of cable is available from Advantech. Please contact your local supplier for
ordering information.

UNO-1251G User Manual iv
FCC Class A
Note: This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Opera-
tion of this equipment in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at his own expense.
Technical Support and Assistance
1. Visit the Advantech web site at www.advantech.com/support where you can find
the latest information about the product.
2. Contact your distributor, sales representative, or Advantech's customer service
center for technical support if you need additional assistance. Please have the
following information ready before you call:
–Product name and serial number
–Description of your peripheral attachments
–Description of your software (operating system, version, application software,
etc.)
–A complete description of the problem
–The exact wording of any error messages
Safety Precaution - Static Electricity
Follow these simple precautions to protect yourself from harm and the products from
damage.
To avoid electrical shock, always disconnect the power from your PC chassis
before you work on it. Don't touch any components on the CPU card or other
cards while the PC is on.
Disconnect power before making any configuration changes. The sudden rush
of power as you connect a jumper or install a card may damage sensitive elec-
tronic components.
警告使用者：這是甲類資訊產品，在居住的環境中使用時， 可能會造成射頻干擾，在
這種情況下，使用者會被要求採取某些適當對策。

v UNO-1251G User Manual
Safety Instructions
1. Read these safety instructions carefully.
2. Keep this User Manual for later reference.
3. Disconnect this equipment from any AC outlet before cleaning. Use a damp
cloth. Do not use liquid or spray detergents for cleaning.
4. For plug-in equipment, the power outlet socket must be located near the equip-
ment and must be easily accessible.
5. Keep this equipment away from humidity.
6. Put this equipment on a reliable surface during installation. Dropping it or letting
it fall may cause damage.
7. The openings on the enclosure are for air convection. Protect the equipment
from overheating. DO NOT COVER THE OPENINGS.
8. Make sure the voltage of the power source is correct before connecting the
equipment to the power outlet.
9. Position the power cord so that people cannot step on it. Do not place anything
over the power cord.
10. All cautions and warnings on the equipment should be noted.
11. If the equipment is not used for a long time, disconnect it from the power source
to avoid damage by transient overvoltage.
12. Never pour any liquid into an opening. This may cause fire or electrical shock.
13. Never open the equipment. For safety reasons, the equipment should be
opened only by qualified service personnel.
14. If one of the following situations arises, get the equipment checked by service
personnel:
–The power cord or plug is damaged.
–Liquid has penetrated into the equipment.
–The equipment has been exposed to moisture.
–The equipment does not work well, or you cannot get it to work according to
the user's manual.
–The equipment has been dropped and damaged.
–The equipment has obvious signs of breakage.
15. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT WHERE THE
STORAGE TEMPERATURE MAY GO BELOW -20° C (-4° F) OR ABOVE 60° C
(140° F) for UNO-1251G.THIS COULD DAMAGE THE EQUIPMENT. THE
EQUIPMENT SHOULD BE IN A CONTROLLED ENVIRONMENT.
16. CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY
REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE
RECOMMENDED BY THE MANUFACTURER, DISCARD USED BATTERIES
ACCORDING TO THE MANUFACTURER'S INSTRUCTIONS.
17. ATTENTION: Danger d'explosion si la batterie est mal REMPLACE. REM-
PLACER UNIQUEMENT PAR LE MEME TYPE OU EQUIVALENT RECOM-
MANDÉ PAR LE FABRICANT, jeter les piles usagées SELON LES
INSTRUCTIONS DU FABRICANT.
18. The sound pressure level at the operator's position according to IEC 704-1:1982
is no more than 70 dB (A).
DISCLAIMER: This set of instructions is given according to IEC 704-1. Advantech
disclaims all responsibility for the accuracy of any statements contained herein.

UNO-1251G User Manual vi
BSMI-ROHS 限用物質含有情况說明書
設備名稱： 電腦 ，型號 （型式）： UNO-1251G
單元 Unit 限用物質及其化學符號
鉛Lead
(Pb)
汞 Mercury
(Hg)
鎘 Cadmium
(Cd)
六價鉻
Hexavalent
chromium
(Cr+6)
多溴聯苯 Poly-
brominated
biphenyls
(PBB)
多溴二苯醚
Polybrominated
diphenyl ethers
(PBDE)
電路板 － ○ ○ ○ ○ ○
機殼
( 外殼、支架
…等)
○○ ○ ○ ○ ○
其它固定組件
(螺絲
○○ ○ ○ ○ ○
配件(線材) － ○ ○ ○ ○ ○
儲存 ○ ○ ○ ○ ○ ○
OLED 面板 ○ ○ ○ ○ ○ ○
備考 1. 〝超出 0.1 wt %〞及 〝超出 0.01 wt %〞係指限用物質之百分比含量超出百分比含量基準值。
Note 1：“Exceeding 0.1 wt %” and “exceeding 0.01 wt %” indicate that the percentage content of the restricted substance exceeds the refer-
ence percentage value of presence condition.
備考 2. 〝○〞係指該項限用物質之百分比含量未超出百分比含量基準值。
Note 2：“○” indicates that the percentage content of the restricted substance does not exceed the percentage of reference value of presence
備考 3. 〝－〞係指該項限用物質為排除項目。
Note 3：The “−” indicates that the restricted substance corresponds to the exemption
Type designation (Type)
Equipment name
Restricted substances and its chemical symbols

vii UNO-1251G User Manual
安全指示
1. 請仔細閱讀此安全操作說明。
2. 請妥善保存此用戶手冊供日後參考。
3. 用濕抹布清洗設備前，請確認拔除電源線。請勿使用液體或去污噴霧劑清洗設備。
4. 對於使用電源線的設備，設備周圍必須有容易接觸到的電源插座。
5. 請勿在潮濕環境中試用設備。
6. 請在安裝前確保設備放置在可靠的平面上，意外摔落可能會導致設備損壞。
7. 設備機殼的開孔適用於空氣對，從而防止設備過熱。請勿覆蓋開孔。
8. 當您連接設備到電源插座前，請確認電源插座的電壓符合要求。
9. 請將電源線佈置在人們不易絆倒的位置，請勿在電源線上覆蓋任何雜物。
10. 請注意設備上所有的警告標示。
11. 如果長時間不使用設備，請拔除與電源插座的連結，避免設備被超標的電壓波動損
壞。
12. 請勿讓任何液體流入通風口，以免引起火灾或短路。
13. 請勿自行打開設備。為了確保您的安全，請透過經認證的工程師來打開設備。
14. 如遇下列情况，請由專業人員維修：
電源線或插頭損壞；
設備內部有液體流入；
設備曾暴露在過度潮濕環境中使用；
設備無法正常工作，或您無法透過用戶手冊來正常工作；
設備摔落或損壞；
設備有明顯外觀損；
15. 請勿將設備放置在超出建議溫度範圍的環境，即不要低於 ‐20 ℃（‐4℉）或高於 60
℃（140 ℉），否則可能會造成設備損壞。
16. 注意：若電池更換不正確，將有爆炸危險。因此，只可以使用製造商推薦的同一種或
者同等型號的電池進行替換。請按照製造商的指示處理舊電池。
17. 根據 IEC704‐1:1982 規定，操作員所在位置音量不可高於 70 分貝。
18. 限制區域：請勿將設備安裝於限制區域使用。
19. 免責聲明：請安全訓示符合 IEC704‐1要求。研華公司對其內容之準確性不承擔任何
法律責任。

UNO-1251G User Manual viii

ix UNO-1251G User Manual
Contents
Chapter 1 Overview...............................................1
1.1 Introduction ............................................................................................... 2
1.2 Specifications ............................................................................................ 2
1.3 Safety Precautions .................................................................................... 3
1.4 Accessories............................................................................................... 4
Chapter 2 Hardware Functionality.......................5
2.1 Introduction ............................................................................................... 6
Figure 2.1 Front Panel of UNO-1251G ........................................ 6
Figure 2.2 Top Panel of UNO-1251G .......................................... 6
Figure 2.3 Bottom Panel of UNO-1251G ..................................... 6
Figure 2.4 Left Panel of UNO-1251G .......................................... 7
2.2 Serial Connections .................................................................................... 7
2.2.1 Serial Mode and Terminator Resistor Selection ........................... 7
2.2.2 Debug Port.................................................................................... 8
2.3 Ethernet LAN Connector ........................................................................... 8
2.4 LED Indicators........................................................................................... 8
2.5 OLED Indicators........................................................................................ 8
2.6 Power Connector ...................................................................................... 8
2.7 USB Connector ......................................................................................... 9
2.8 CAN Port ................................................................................................... 9
2.9 Reset Button ............................................................................................. 9
2.10 Antenna Mounting ..................................................................................... 9
2.11 microSD card Slot ..................................................................................... 9
2.12 Micro SIM card Slot................................................................................. 10
2.13 PCI Express Mini Card Socket................................................................ 10
Chapter 3 Initial Setup ........................................11
3.1 Chassis Grounding.................................................................................. 12
Figure 3.1 Chassis Grounding Connection................................ 12
3.2 Inserting a microSD card/microSIM card (Optional)................................ 12
3.3 Installing a Wireless module Card and Antenna (Optional) .................... 13
3.4 Din-rail Kit Assembly ............................................................................... 14
Figure 3.2 UNO-1251G with Din-rail mounting .......................... 14
3.5 Connecting Power................................................................................... 15
3.6 Remote Access ....................................................................................... 15
Appendix A System Settings and Pin Assignments
.............................................................17
A.1 Board Connectors and Switches............................................................. 18
Figure A.1 Connector & Switch Locations (front))...................... 18
Table A.1: Connectors and Jumpers ......................................... 18
A.2 RS-485 Serial Port (COM1), RS-4222/485 Serial Port (COM2) and console
port .......................................................................................................... 19
Table A.2: Connectors and Jumpers ......................................... 19
A.3 Switch setting of RS-485 Serial Port (COM1) & RS-4222/485 Serial Port
(COM2) ................................................................................................... 20
A.4 RS-232 Serial Port (COM3) .................................................................... 20
Table A.3: Connectors and Jumpers ......................................... 20

UNO-1251G User Manual x
A.5 CAN Port................................................................................................. 21
Table A.4: Connectors and Jumpers ......................................... 21
A.6 Switch setting of CAN port ...................................................................... 21
A.7 Power Connector .................................................................................... 22
Table A.5: Connectors and Jumpers ......................................... 22
A.8 USB Connector....................................................................................... 22
Table A.6: Connectors and Pin Assignments ............................ 22
A.9 LAN Connector ....................................................................................... 23
Table A.7: Connectors and Pin Assignments ............................ 23

Chapter 1
1Overview
This chapter provides an overview
of UNO-1251G specifications.
Sections include:
Introduction
Safety precautions
Accessories

UNO-1251G User Manual 2
1.1 Introduction
The UNO-1251G is an Industrial IoT DIN-rail gateway. This gateway features dual
LAN ports & expansible Wi-Fi/3G connectivity. There are also some user friendly
design elements such as: a programmable OLED display to indicate the system sta-
tus; and a front accessible microSD card/micro SIM slot. With WebAccess/HMI sup-
port, it is compatible with 450 types of PLC, controllers & I/O devices. User can easily
access UNO-1251G through mobile devices by VNC. It is the ideal solution for auto-
mation control as a cloud enabled HMI platform.
1.2 Specifications
General
Certification CE, FCC, CCC, BSMI, UL
Dimensions ( W x D x H ) 50 x 90 x 100 mm (1.97" x 3.54" x 3.94")
Form Factor Micro Size
Enclosure Aluminum Housing
Mounting DIN-rail
Weight (Net) 0.4 kg (0.88 lbs)
Power Requirements 10~36 VDC
Power Consumption 5.3W(Typical), 20W(Maximum)
OS Support WEC7 / Embedded Linux (kernel v2.6.37)
System Hardware
Processor RISC 32 bit, 600 MHz (ARM® Cortex™-A8)
Backup Memory FRAM 128KB
Memory Onboard DDR2 256MB 166MHz (Optional 512MB)
LED Indicators LEDs for Power(PWR), COM1~3(Tx/Rx) and
CAN(Tx/Rx)
Storage Bootloader and image:
1 x microSD 1G (Built-in) (SDHC)
External storage:
1 x microSD card slot (SDHC)
Expansion 1 x Full-size mPCIe slot (USB2.0 signal only)
I/O Interfaces
Isolated Serial Ports 1 x RS485, terminal block, auto direction control,
300~115.2k bps
1 x RS422/485, terminal block, auto direction control
(RS-485), 300~115.2k bps
1 x RS232, DB9, auto flow control 300~115.2k bps
CAN CANbus, version 2.0A/B compliant (terminal block,
10k~500k bps)
LAN Ports 2 x RJ45, 10/100 Mbps
USB Ports 1 x USB 2.0
Power Connector 1 x 4 Pin, Terminal Block , supports dual power input
Grounding Protection Chassis Grounding
SIM 1 x Micro SIM card slot
Environment
Operating Temperature - 20 ~ 60°C (-4 ~ 140°F) @ 5 ~ 85% RH
Storage Temperature - 40 ~ 85°C ( -40 ~ 185°F)
Relative Humidity 10 ~ 95% RH @ 40°C, non-condensing

3 UNO-1251G User Manual
Chapter 1 Overview
Shock Protection Operating, IEC 60068-2-27, 50G, half sine,11ms
Vibration Protection Operating, IEC 60068-2-64, 3 Grms, random,
5 ~ 500Hz, 1 hr/axis
1.3 Safety Precautions
The following sections tell how to make each connection. In most cases, you will sim-
ply need to connect a standard cable.
Warning! Always disconnect the power cord from your chassis whenever you are
working on it. Do not connect while the power is on. A sudden rush of
power can damage sensitive electronic components. Only experienced
electronics personnel should open the chassis.
Warning! Toujours à la terre pour éliminer toute charge d'électricité statique avant
toucher UNO-1251G. Appareils électroniques modernes sont très sensi-
bles à charges d'électricité statique. Utilisez un bracelet antistatique à
tout moment. Placez tous composants électroniques sur une surface
antistatique ou dans un statique-sac blindé.
Caution! Always ground yourself to remove any static electric charge before
touching the product. Modern electronic devices are very sensitive to
static electric charges. Use a grounding wrist strap at all times. Place all
electronic components on a static-dissipative surface or in an anti-static
bag.
Caution! Toujours débrancher le cordon d'alimentation de votre boîtier lorsque
vous êtes travailler. Ne branchez pas lorsque l'appareil est allumé. Un
afflux soudain de puissance peut endommager les composants électro-
niques sensibles. Seulement connu personnel de l'électronique
devraient ouvrir le châssis.

UNO-1251G User Manual 4
1.4 Accessories
Please refer below for the accessory list:
4-pin phoenix connector for power wiring (Advantech P/N: 1652000292)
10-pin phoenix connector for COM1/COM2/Console port
(Advantech P/N: 1652005896)
3-pin phoenix connector for CAN port (Advantech P/N: 1652000049)
Din-Rail Mounting kit (Advantech P/N: 1960018849T021)
3 x screws for Din-Rail kit (Advantech P/N: 1930000686)
1 x screws for mPCIe card (Advantech P/N: 1935020300)
Warranty card
If anything is missing or damaged, contact your distributor or sales representative
immediately.

Chapter 2
2Hardware
Functionality
This chapter shows the UNO-
1251G’s hardware functions,
including:
Introduction
Serial connections
Ethernet LAN Connector
LED Indicators
OLED indicators
Power connector
USB connector
CAN port
Reset Button
Antenna Mounting
microSD card slot
micro SIM card slot
PCI Express Mini card socket

UNO-1251G User Manual 6
2.1 Introduction
The following figures show the panel configuration on UNO-1251G. More information
of each peripheral is included in the following sections.
Figure 2.1 Front Panel of UNO-1251G
Figure 2.2 Top Panel of UNO-1251G
Figure 2.3 Bottom Panel of UNO-1251G

7 UNO-1251G User Manual
Chapter 2 Hardware Functionality
Figure 2.4 Left Panel of UNO-1251G
2.2 Serial Connections
2.2.1 Serial Mode and Terminator Resistor Selection
UNO-1251G provides 3 serial Com ports, COM1 provide RS-485, COM2 provides
RS-422/485 and COM3 provides RS-232. The default setting of COM2 is RS-422.
Users could change COM2 Port serial types to RS-422 or RS-485 by SW7 DIP
switch selection.
The RS-422/485 terminator resistor is default enabled to match impedance. Espe-
cially in fields with electric noise, enabling terminal resistors is helpful to stabilize
communications. Users could change COM2 serial port type and RS-422/485 termi-
nator resistor settings by SW7/Serial Port Setting DIP switch located inside of the
expansion lot on the left side of the UNO- 1251G system. Refer to Appendix A for
their pin assignments and switch setting.

UNO-1251G User Manual 8
2.2.2 Debug Port
Debug port is reserved for engineers to proceed debug and / or console
access.
2.3 Ethernet LAN Connector
The UNO-1251G is equipped with two 10/100MB LAN controllers. The controllers
can interface to UTP3,4,5 in 10Base-T and UTP5 in 100Base-TX with HP Auto-
MDIX. Those are fully compliant with the IEEE 802.3u Spec. The Ethernet port pro-
vides a standard RJ-45 jack on board, and LED indicators on the front side to show
its Link (Orange LED) and Active (Green LED) status.The default IP Address of LAN
A is 10.0.0.1 and LAN B is 10.0.0.2.
2.4 LED Indicators
There are four LEDs indicating the status of the system power, serial and CAN are
located on the front panel of UNO-1251G, and each of them has its own specific
meaning, as shown in the table below.
PWR: Green light means normal
COM1~3: Flashing green means COM 1, COM2 and COM3 signals are being
transmitted and received.
CAN: Flashing green means CAN signals are being transmitted and received.
2.5 OLED Indicators
The UNO-1251G also has a built in programmable OLED display which provides an
intuitive way for diagnosing the system status through the displayed messages. It
comes with a range of default messages, but is also able to be programmed, using
the OLED Display API.
2.6 Power Connector
The UNO-1251G comes with a Phoenix connector that carries 10~36 VDC external
power input, and features reversed wiring protection. Therefore, it will not cause any
damage to the system by reversed wiring of ground line or power line. In the power
connector, there is a secondary power input that helps users plug-in a second power
source to prevent main power source failure.
The UNO-1251G supports AT-type for system booting up. The system will automati-
cally boot up once the power is connected.

9 UNO-1251G User Manual
Chapter 2 Hardware Functionality
2.7 USB Connector
The USB interface supports Plug and Play, which enables you to connect or discon-
nect a device whenever you want, without turning off the computer. The UNO-1251G
provides one connector of USB interfaces, which gives complete Plug & Play and hot
swapping for up to 127 external devices. The USB interface complies with USB
EHCI, Rev. 2.0 compliant.
2.8 CAN Port
UNO-1251G provides one CAN port which is version 2.0A/B compliant.
2.9 Reset Button
Press the “RST” button to activate the hardware reset function. The system reset but-
ton is on the top panel shown in Figure 2.2.
2.10 Antenna Mounting
The UNO-1251G provides two antenna mounting holes with pre-cut cover that allows
users to install antenna kit for Wi-Fi, GPRS/3G or other wireless functions. The two
antenna mounting holes are on the top panel shown in Figure 2.2.
2.11 microSD card Slot
UNO-1251G provides one board microSD slot for OS and one externally accessible
microSD slot for data storage. It is fully compliant with SD command / response sets
as defined in the SD Memory Card Specifications, V2.0 including high capacity
SDHC cards up to 32GB. User can insert microSD card from the bottom panel shown
in Figure 2.3.

UNO-1251G User Manual 10
2.12 Micro SIM card Slot
There is one externally accessible micro SIM card slot on UNO-1251G. User can
insert standard micro-SIM card from the bottom panel shown in Figure 2.3.
2.13 PCI Express Mini Card Socket
The UNO-1251G supports one full-size PCI Express Mini (mPCIe) card expansion,
refer to Figure 2.4. The mPCIe slot only provides USB signal and connecting with
SIM card slot.