Advantech ARK-2250L-U6A1E User manual

User Manual
ARK-2250
Computer

ARK-2250 User Manual ii
Attention!
Please note:
This package contains a hard-copy user manual in Chinese for China CCC certifica-
tion purposes, and there is an English user manual included as a PDF file on the
website. Please disregard the Chinese hard copy user manual if the product is not to
be sold and/or installed in China.

iii ARK-2250 User Manual
Copyright
The documentation and the software included with this product are copyrighted 2017
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. However,
Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringements
of the rights of third parties, which may result from its use.
Acknowledgements
Award is a trademark of Award Software International, Inc.
VIA is a trademark of VIA Technologies, Inc.
IBM, PC/AT, PS/2 and VGA are trademarks of International Business Machines Cor-
poration.
Intel® and Pentium® are trademarks of Intel Corporation.
Microsoft Windows® is a registered trademark of Microsoft Corp.
RTL is a trademark of Realtek Semi-Conductor Co., Ltd.
ESS is a trademark of ESS Technology, Inc.
UMC is a trademark of United Microelectronics Corporation.
SMI is a trademark of Silicon Motion, Inc.
Creative is a trademark of Creative Technology LTD.
CHRONTEL is a trademark of Chrontel Inc.
All other product names or trademarks are properties of their respective owners.
For more information about this and other Advantech products, please visit our web-
site at:
http://www.advantech.com/
http://www.advantech.com/ePlatform/
For technical support and service, please visit our support website at:
http://support.advantech.com.tw/support/
Part No. 2006K22500 Edition 1
Printed in China May 2017

ARK-2250 User Manual iv
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 merchandise
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
FCC Class B
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 installa-
tion. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful inter-
ference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interfer-
ence to radio or television reception, which can be determined by turning the equip-
ment 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.

v ARK-2250 User Manual
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
Warnings, Cautions and Notes
Packing List
Before installation, please ensure the following items have been shipped:
1 x ARK-2250 unit
1 x Registration and 2 years warranty card
1 x China RoHS
1 x 2-pole Phoenix to DC jack power cable
1 x Utility CD
1 x Simplified Chinese manual
Warning! Warnings indicate conditions, which if not observed, can cause personal
injury!
Caution! Cautions are included to help you avoid damaging hardware or losing
data.
There is a danger of a new battery exploding if it is incorrectly installed.
Do not attempt to recharge, force open, or heat the battery. Replace the
battery only with the same or equivalent type recommended by the man-
ufacturer. Discard used batteries according to the manufacturer's
instructions.
Note! Notes provide optional additional information.

ARK-2250 User Manual vi
Ordering Information
Optional Accessories
For ARK-2250
Model Number Description
ARK-2250L-U6A1E ARK-2250L Intel Core i7-6600U 2.6GHz system
ARK-2250L-U3A1E ARK-2250L Intel Core i3-6100U 2.3GHz system
Part Number Description
96PSA-A60W12W6 AC-to-DC Adapter, DC12V/5A 60W with lockable DC jack
MOS-1120Y-0201E Isolated RS-232, 2-Ch, DB9
MOS-1120Y-1401E Non-Isolated RS-232, DB37, 4-Ch
MOS-1121Y-0201E Isolated RS-422/485, 2-Ch, DB9
MOS-1121Y-1401E Non-Isolated RS-422/485, DB37, 4-Ch
MOS-2120-Z1101E Giga LAN Ethernet module, 1-Ch
MOS-2220-X1101E Parallel LPT module, 1-Ch, USB I/F
MOS-1130Y-0201E Isolated CANBus, 2-Ch, DB9, PCIe I/F
MOS-2230-Z1201E CANBus module, 2-Ch, USB I/F
MOS-1110Y-0101E Isolated 16 DI/8 DO, 1-Ch, DB37, PCIe I/F
MIOE-PWR2-00A1E 9~36V DC-in power module
96PSA-A65W19P2-1 AC-to-DC Adapter, DC19V/3.42A 65W (for MIOe-PWR2)
AMO-2201E 4x RS232/422/485+ removable 2.5" drive (2nd layer)
AMO-2203E 2x isolated CAN-Bus (2nd layer)
AMO-2204E 3x GbE + iDoor (2nd layer, this iDoor support USB I/F only)

vii ARK-2250 User Manual
Safety Instructions
1. Please read these safety instructions carefully.
2. Please keep this User’s Manual for later reference.
3. Please disconnect this equipment from AC outlet before cleaning. Use a damp
cloth. Don’t use liquid or sprayed detergent for cleaning. Use moisture sheet or
clothe for cleaning.
4. For pluggable equipment, the socket-outlet shall near the equipment and shall
be easily accessible.
5. Please keep this equipment from humidity.
6. Lay this equipment on a reliable surface when install. A drop or fall could cause
injury.
7. The openings on the enclosure are for air convection hence protecting the
equipment from overheating. DO NOT COVER THE OPENINGS.
8. Make sure the voltage of the power source when connecting the equipment to
the power outlet.
9. Place the power cord such a way 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 long time, disconnect the equipment from mains
to avoid being damaged by transient over-voltage.
12. Never pour any liquid into ventilation openings; this could cause fire or electrical
shock.
13. Never open the equipment. For safety reasons, only qualified service personnel
should open the equipment.
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 -40° C (-40° F) or above 85° C (185° F). 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. The sound pressure level at the operator's position according to IEC 704-1:1982
is no more than 70 dB (A).
18. RESTRICTED ACCESS AREA: The equipment should only be installed in a
Restricted Access Area.
19. DISCLAIMER: This set of instructions is given according to IEC 704-1. Advan-
tech disclaims all responsibility for the accuracy of any statements contained
herein.

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 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 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.
FCC Caution: Any changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate this
equipment.
FCC RF Radiation Exposure Statement:
1. This Transmitter must not be co-located or operating in conjunction with any
other antenna or transmitter.
2. This equipment complies with FCC RF radiation exposure limits set forth for
an uncontrolled environment. This equipment should be installed and
operated with a minimum distance of 20 centimeters between the radiator
and your body.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
Any changes or modifications not expressly approved by the party responsible
for compliance could void the user's authority to operate the equipment.
According to FCC 15.407(e), the device is intended to operate in the frequency
band of 5.15GHz to 5.25GHz under all conditions of normal operation. Normal
operation of this device is restricted to indoor used only to reduce any potential
for harmful interference to co-channel MSS operations.
ARK-2250 User Manual viii

ix ARK-2250 User Manual
Contents
Chapter 1 General Introduction ...........................1
1.1 Introduction ............................................................................................... 2
1.2 Product Features....................................................................................... 3
1.2.1 General ......................................................................................... 3
1.2.2 Display .......................................................................................... 3
1.2.3 Ethernet ........................................................................................ 3
1.3 Chipset ...................................................................................................... 4
1.3.1 Functional Specification ................................................................ 4
1.3.2 WISE-PaSS/RMM......................................................................... 5
1.4 Mechanical Specifications......................................................................... 5
1.4.1 Dimensions ................................................................................... 5
Figure 1.1 ARK-2250 Mechanical dimension drawing................. 5
1.4.2 Weight........................................................................................... 5
1.5 Power Requirement .................................................................................. 5
1.5.1 System Power............................................................................... 5
1.5.2 RTC Battery .................................................................................. 5
1.6 Environment Specification......................................................................... 6
1.6.1 Operating Temperature................................................................. 6
1.6.2 Relative Humidity .......................................................................... 6
1.6.3 Storage Temperature.................................................................... 6
1.6.4 Vibration during Operation ............................................................ 6
1.6.5 Shock during Operation ................................................................ 6
1.6.6 Safety............................................................................................ 6
1.6.7 EMC .............................................................................................. 6
Chapter 2 H/W Installation....................................7
2.1 Introduction ............................................................................................... 8
2.2 Jumpers .................................................................................................... 8
2.2.1 Jumper Description ....................................................................... 8
2.2.2 Jumper List ................................................................................... 9
Table 2.1: Jumper setting ............................................................ 9
2.2.3 Jumper Location ........................................................................... 9
Figure 2.1 Jumper Layout............................................................ 9
2.2.4 Jumper Setting.............................................................................. 9
2.3 Connectors.............................................................................................. 10
Table 2.2: Connectors ............................................................... 10
2.3.1 ARK-2250 External I/O ............................................................... 32
? 2.2? ARK-2250 IO 接口图 ............................32
Figure 2.3 COM Connector........................................................ 33
Table 2.3: COM Connector Pin Assignments............................ 33
Figure 2.4 Ethernet Connector .................................................. 33
Table 2.4: Ethernet Pin Assignments ....................................... 33
Figure 2.5 Audio Connector....................................................... 34
Table 2.5: Audio Connector Pin Assignments ........................... 34
Figure 2.6 USB Connector......................................................... 34
Table 2.6: USB Connector Pin Assignments............................. 34
Figure 2.7 VGA Connector ........................................................ 35
Table 2.7: VGA Pin Assignments .............................................. 35
Figure 2.8 Power Button ............................................................ 35
Figure 2.9 LED Indicators .......................................................... 35
2.4 Installation ............................................................................................... 36
2.4.1 Memory Installation..................................................................... 36
2.4.2 HDD/SSD Installation.................................................................. 37

ARK-2250 User Manual x
2.4.3 mSATA Installation ..................................................................... 39
2.4.4 Power Module (MIOe-PWR2) Installation (Option)..................... 40
2.4.5 iDoor Module Installation (Option) .............................................. 43
2.4.6 2nd Layer MIOe Module Installation (Option) ............................. 43
Chapter 3 BIOS Settings .................................... 45
3.1 BIOS Setup ............................................................................................. 46
Figure 3.1 Setup program initial screen..................................... 46
3.2 Entering Setup ........................................................................................ 46
3.2.1 Main Setup.................................................................................. 47
Figure 3.2 Main setup screen .................................................... 47
3.2.2 Advanced BIOS Features Setup................................................. 48
Figure 3.3 Advanced BIOS features setup screen .................... 48
Figure 3.4 ACPI Setting............................................................. 49
Figure 3.5 Intel Fast Flash Standby........................................... 54
3.2.3 Security Configuration ................................................................ 60
3.2.4 Boot Settings .............................................................................. 67
3.2.5 Security Setup ............................................................................ 68
3.2.6 Save & Exit ................................................................................. 69
Appendix A Watchdog Timer Sample Code ........ 71
A.1 EC Watchdog Timer sample code .......................................................... 72

Chapter 1
1General Introduction
This chapter gives background
information on ARK-2250 series.

ARK-2250 User Manual 2
1.1 Introduction
ARK-2250 is an intelligent, modular and fanless embedded system. A fully modular
design, ARK-2250 supports easy I/O switching with optional iDoor modules, wide
range power board and MIOe board expansions. ARK-2250 is targeted at factory
automation, machine automation, kiosks, and self-service applications.
Rugged & Multifunctional Design
ARK-2250 embedded box PC is powered by an Intel 6th gen core i3/i7 processor.
The compact size system provides a selection of I/O ports: 2 x USB 3.0, 4 x USB 2.0,
2 x GbE, 4 x COM, 2 x mPCIe and 1 x 2.5" HDD. The default power input is 12V DC
in, and it also supports an optional wide range 9~36V power module with wide tem-
perature operation of -20 to 60C. ARK-2250 passes worldwide certification including
CE/FCC, CB, UL, CCC and BSMI.
Multiple Display Support
ARK-2250 supports up to 3 display types: VGA, HDMI as the default display, and with
an expansion display module, it can provide DP, HDMI, DVI-D as the 3rd optional dis-
play port. The graphic engine is DirectX 11.3, OpenGL 4.4, and OpenCL 2.1 Full
AVC/VC1/MPEG2 HW Decode.
Built in Intelligent Management Tools - WISE-PaSS/RMM
Advantech WISE-PaSS/RMM provides a valuable suite of programmable APIs such
as multi-level watchdog, hardware monitor, system restore, and other user-friendly
interface. iManager is an intelligent self-management cross platform tool that moni-
tors system status for problems and takes action if anything is abnormal. It offers a
boot up guarantee in critical, low temperature environments so systems can automat-
ically recover when voltages dip. WISE-PaSS/RMM makes the whole system more
reliable and more intelligent. ARK-2250L provides easy remote management so
users can monitor, configure, and control a large number of terminals to make main-
tenance and system recovery simpler.

3 ARK-2250 User Manual
Chapter 1 General Introduction
1.2 Product Features
1.2.1 General
CPU:
Intel 6th gen core i7-6600U processor 2.6GHz
Intel 6th gen core i3-6100U processor 2.3GHz
BIOS: AMI UEFI 128Mbit
System Memory: 1x DDR3L 1600MHz up to 16 GB
Watchdog Timer: Single chip Watchdog 255-level interval timer, setup by soft-
ware
I/O Interface: 4 x RS232/422/485
USB: 2 x USB 2.0, 4 x USB 3.0 compliant ports
Audio: High Definition Audio (HD), Line out, Mic-in
Storage: 1 x mSATA and 1 x high capacity 2.5” SATA HDD (up to 12.5mm
height)
Expansion Interface:
–Supports 2 x MiniPCIe (1 with SIM holder)
–Supports 1 x iDoor expansion (by 1st layer)
–Supports 1 x ARK Plus expansion (by 2nd layer)
1.2.2 Display
Controller: Intel®HD Graphics 520
Resolution:
–VGA: Supports up to 1920 x 1200
–HDMI: Supports up to 4096 x 2160 @ 24Hz
Dual Display: VGA+HDMI
Triple Display: VGA+HDMI+3rd optional display
1.2.3 Ethernet
Chipset:
–LAN1 Intel i219
–LAN2 Intel i210
Speed: 1000 Mbps
Interface: 2 x RJ45
Standard: Compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.3y,
IEEE 802.ab.

ARK-2250 User Manual 4
1.3 Chipset
1.3.1 Functional Specification
1.3.1.1 Processor
1.3.1.2 Chipset
1.3.1.3 Others
Processor Intel 6th gen core i7-6600U processor 2.6GHz
Intel 6th gen core i3-6100U processor 2.3GHz
Memory Supports DDR3L 1600MHz up to 16GB
1 x 204-pin SODIMM socket type
Internal Graph-
ics Features
DirectX 11.3, OpenGL 4.4
Display Ports VGA + HDMI, HDMI 1.4a
Video Accelera-
tor
H/W accelerated video decode
Video decoder: AVC/VC1/MPEG2 HW Decode
Supports DVD, Blu-ray, and HD video
SATA Interface
Supports several optional sections of Serial ATA II: Extensions to
Serial ATA 1.0 Specification, Revision 1.0
Supports SATA transfers to 300 Mbytes/sec.
Supports mSATA socket
USB Interface
USB host interface with support for 1 USB 3.0 and 4 USB 2.0 ports
All ports are High-Speed, Full-Speed, and Low-Speed capable
Supports legacy keyboard/mouse software
BIOS UEFI 128Mbit
Serial ports
COM1 ~ COM4: Supports RS-232/422/485 and change mode under
BIOS setting
** COM1 ~ COM4 RS-485 supports auto-flow control.
COM connector: D-SUB CON. 9P
Ethernet
LAN1 Intel i219, LAN2 Intel i210
Compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.3y,
IEEE 802.ab.
Supports 10/100/1000 Mbps.
LAN Connectors: Phone Jack RJ45 8P 90D(F)
Audio
Audio Codec: Realtek ALC888S:
Compliant with HD Audio specifications
Supports 16/20/24-bit DAC and 16/20/24-bit ADC resolution
Supports: Line-out, Mic-in
Audio Connectors: Ear Phone Jack * 2
Battery backup BATTERY 3V/210 mAh with WIRE x 1

5 ARK-2250 User Manual
Chapter 1 General Introduction
1.3.2 WISE-PaSS/RMM
1.4 Mechanical Specifications
1.4.1 Dimensions
260[10.24] x 54[2.13] x 140.2[5.52] Unit: mm [Inch]
Figure 1.1 ARK-2250 Mechanical dimension drawing
1.4.2 Weight
2.3 kg (5.06 lb)
1.5 Power Requirement
1.5.1 System Power
Minimum power input:
–ARK-2250: DC 12V, 5A
1.5.2 RTC Battery
Lithium 3 V/210 mAH
Sequence control Supported
Watchdog timer Multi Level WDT
Programmable 1-255 sec / min
Hardware monitor CPU Temperature / input Current / input Voltage
Power saving Deep sleep S5 mode
System information Running HR / Boot record

ARK-2250 User Manual 6
1.6 Environment Specification
1.6.1 Operating Temperature
With Industrial Grade SSD/mSATA: -20 ~ 60° C (-4~140° F), with air flow,
speed=0.7 m/sec
With 2.5-inch hard disk 0 to 45° C (32~113° F), with air flow, speed=0.7 m/sec
1.6.2 Relative Humidity
95% @ 40° C (non-condensing)
1.6.3 Storage Temperature
-40 ~ 85° C (-40 ~ 185° F)
1.6.4 Vibration during Operation
When the system is equipped with SSD/mSATA: 3Grms, IEC 60068-2-64, ran-
dom, 5 ~ 500 Hz, 1hr/axis, x,y,z 3 axes.
1.6.5 Shock during Operation
When the system is equipped with SSD/mSATA: 30G, IEC 60068-2-27, half
sine, 11 ms duration.
1.6.6 Safety
UL, CB, CCC, BSMI
1.6.7 EMC
CE, FCC, CCC, BSMI

Chapter 2
2H/W Installation
This chapter introduces external
IO and the installation of ARK-
2250 hardware.

ARK-2250 User Manual 8
2.1 Introduction
The following sections show the internal jumpers settings and the external connector
pin assignments for application.
2.2 Jumpers
2.2.1 Jumper Description
You may configure ARK-2250 to match the needs of your application by setting jump-
ers. A jumper is a metal bridge used to close an electric circuit. It consists of two
metal pins and a small metal clip (often protected by a plastic cover) that slides over
the pins to connect them. To close a jumper, you connect the pins with the clip. To
open a jumper, you remove the clip. Sometimes a jumper will have three pins,
labeled 1, 2 and 3. In this case you would connect either pins 1 and 2, or 2 and 3.
The jumper settings are schematically depicted in this manual as follows.
A pair of needle-nose pliers may be helpful when working with jumpers. If you have
any doubts about the best hardware configuration for your application, contact your
local distributor or sales representative before you make any changes. Generally, you
simply need a standard cable to make most connections.
closed 2-3closedopen
12 12
closed 2-3closedopen

9 ARK-2250 User Manual
Chapter 2 H/W Installation
2.2.2 Jumper List
2.2.3 Jumper Location
Figure 2.1 Jumper Layout
2.2.4 Jumper Setting
On the Motherboard
Table 2.1: Jumper setting
J1 Auto Power On Setting
SW2 RTC Reset
J1 Auto Power On Setting
Part Number 1653002101
Footprint HD_2x1P_79_D
Description PIN HEADER 2*1P 180D(M)SQUARE 2.0mm DIP W/O Pb
Setting Function
NL Power On by power button (default)
(1-2)* Auto Power On

ARK-2250 User Manual 10
2.3 Connectors
SW2 RTC Reset
Part Number 1600000071
Footprint SW_3P_CJS-1201TA1
Description CJS-1201TA1
Setting Function
1* Normal (Default)
3 RTC Reset
Table 2.2: Connectors
CN1 12V Power Input
CN2 NL/DCJACK_2
CN4 Battery
CN5 SODIMMDDR3_204
CN7 EC Debug Port
CN8 Power Switch
CN9 Reset
CN10 GPIO
CN11 SATA
CN12 SATA
CN13 SATA Power
CN39 SATA Power
CN14 Mini PCIE
CN15 Mini PCIE(mSATA)
CN16 SIM
CN19 COM1/COM2
CN20 NL/RJ45_W/XFMR&LED
CN21 LAN
CN22 NL/RJ45_W/XFMR&LED
CN24 External USB2.0+USB3.0
CN25 External USB2.0+USB3.0
CN27 VGA
CN28 MIOe
CN29 SMBus
CN31 PS2
CN34 HDMI
CN40 USB2.0
CN41 USB2.0
CN42 MIC_IN
CN43 LINE_OUT
CN45 COM3
CN46 COM4