Advantech ARK-3531 Series User manual

User Manual
ARK-3531
Fanless Embedded Box PC

ARK-3531 User Manual ii
Attention!
Please note:
This package contains a hard-copy user manual in Chinese for China CCC certifica-
tion purposes. There is an English user manual included as a PDF file on the CD.
Please disregard the Chinese hard copy user manual if the product is not to be sold
and/or installed in China.

iii ARK-3531 User Manual
Copyright
The documentation and the software included with this product are copyrighted 2020
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.
Acknowledgments
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. 2006353100 Edition 1
Printed in China September 2020

ARK-3531 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 return merchandise authori-
zation (RMA) 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 interfer-
ence 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-3531 User Manual
Technical Support and Assistance
1. Visit the Advantech website 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-3531 Unit
1 x Mounting Kit
1 x User Manual (Simplified Chinese)
1 x China RoHS
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. e.g.
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-3531 User Manual vi
Ordering Information
ARK-3531 Default SKU Option Items
Optional Item for Default SKU
Part No. CPU DDR4 GbE VGA HDMI RS-232/
422/485
RS-
232 USB3.1 USB3.0 DIO DC
Input
ARK-3531-
00A1
LGA1151
Socket Type
Up to
64GB 2 1 1 4 4 2 6 16bit 9-36V
Note! CPU/Memory/Storage and operating system bundled by request.
Part Number Description
96PSA-A150W19P4-3 AC-to-DC Adapter, DC19V 150W, 0 ~ 40 °C (32 ~ 104 °F)
96PSA-A230W24P4-3 AC-to-DC Adapter, DC24V 230W, -20 ~ 60 °C (-4 ~ 140 °F)
1702002600 Power cable 3-pin 183 cm (64.1 in), USA type
1702002605 Power cable 3-pin 183 cm (64.1 in), EU type
1702031801 Power cable 3-pin 183 cm (64.1 in), UK type
1700000237 Power cable, 3-pin 183 cm (64.1 in), PSE type

vii ARK-3531 User Manual
Safety Instructions
1. Read these safety instructions carefully.
2. Retain this user manual for future reference.
3. Disconnect the equipment from all AC outlets before cleaning. Use only a damp
cloth for cleaning. Do not use liquid or sprayed detergent.
4. For pluggable equipment, the power outlet should be near the equipment and
easily accessible.
5. Protect the equipment from humidity.
6. Place the equipment on a reliable surface during installation. Dropping or letting
the equipment fall may cause damage.
7. The openings on the enclosure are for air convection and protect the equipment
from overheating. Do not cover the openings.
8. The power outlet sockets should have grounded connections.
9. Position the power cord away from high-traffic areas. 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 the equipment from the
power source to avoid damage from transient over-voltage.
12. Never pour liquid into an opening as this can 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 occurs, have the equipment checked by service person-
nel:
The power cord or plug is damaged.
Liquid has penetrated into the equipment.
The equipment has been exposed to moisture.
The equipment is malfunctioning or does not operate according to the user
manual.
The equipment has been dropped and damaged.
The equipment shows obvious signs of breakage.
15. Do not leave the equipment in an environment with a storage temperature of
below -40 °C (-40 °F) or above 85 °C (185 °F) as this may cause damage. The
equipment should be stored in a controlled environment.
16. Any unverified component may cause unexpected damage. To ensure correct
installation, always use the components (e.g., screws) provided in the acces-
sory box.
17. CAUTION: The equipment is equipped with a battery-powered real-time clock
circuit. There is a risk of explosion if a battery is incorrectly replaced. Replace
only with same or equivalent type as recommended by the manufacturer. Dis-
card all used batteries according to the manufacturer’s instructions.
18. Always disconnect the power cord from the chassis before manually handling
the hardware. Do not implement connections or configuration changes while the
device is powered on. Sudden power surges may damage sensitive electronic
components.
19. In accordance with IEC 704-1:1982 specifications, the sound pressure level at
the operator’s position should not exceed 70 dB (A).
20. The equipment should only be installed in a restricted access areas.
21. DISCLAIMER: These instructions are provided according to IEC 704-1 specifi-
cations.
Advantech disclaims all responsibility for the accuracy of any statements con-
tained herein.

ARK-3531 User Manual viii
22. Use a power cord connected to a socket-outlet with a grounded connection.
23. This product is intended to be supplied by a UL Listed power supply suitable for
use at minimum Tma 50 °C (122 °F) whose output meets PS2 (or LPS), ES1(or
SELV) and output is rated: 9-36Vdc, 16.65-4.16A. Please contact Advantech for
further information.
24. Never open the equipment. For safety reasons, the equipment should be
opened by qualified service personnel only).
Consignes de Sécurité
1. Veuillez lire attentivement ces instructions de sécurité.
2. Veuillez conserver ce manuel de l'utilisateur pour référence ultérieure.
3. Veuillez débrancher cet équipement de la prise secteur avant le nettoyage. Utili-
sez un chiffon humide. Ne pas utiliser de détergent liquide ou pulvérisé pour le
nettoyage. Utilisez une feuille ou un chiffon humide pour le nettoyage.
4. Pour les équipements enfichables, la prise de courant doit être à proximité de
l'équipement et doit être facilement accessible.
5. S'il vous plaît garder cet équipement de l'humidité.
6. Posez cet équipement sur une surface fiable lors de l'installation. Une chute ou
une chute pourrait causer des blessures.
7. Les ouvertures sur le boîtier sont destinées à la convection d'air, protégeant.
ainsi l'équipement de la surchauffe. NE COUVREZ PAS LES OUVERTURES.
8. La prise de courant doit avoir une connexion mise à la terre.
9. Placez le cordon d'alimentation de sorte que personne ne puisse marcher des-
sus.
Ne placez rien sur le cordon d'alimentation.
10. Tous les avertissements et mises en garde sur l'équipement doivent être notés.
11. Si l'appareil n'est pas utilisé pendant une longue période, débranchez-le du sec-
teur pour ne pas être endommagé par une surtension transitoire.
12. Ne jamais verser de liquide dans les ouvertures de ventilation; Cela pourrait
provoquer un incendie ou un choc électrique.
13. N'ouvrez jamais l'équipement. Pour des raisons de sécurité, seul le personnel
de maintenance qualifié doit ouvrir l'équipement.
14. Si l'une des situations suivantes se présente, faites vérifier le matériel par le
personnel de service:
Le cordon d'alimentation ou la fiche est endommagé.
Un liquide a pénétré dans l'appareil.
L'équipement a été exposé à l'humidité.
L'équipement ne fonctionne pas bien ou vous ne pouvez pas le faire.
fonctionner conformément au manuel d'utilisation.
Equipment L'équipement est tombé et a été endommagé.
Equipment L'équipement présente des signes évidents de rupture.
15. Ne laissez pas cet équipement dans un environnement où la température de
stockage peut être inférieure à -40 °C (-40 °F) ou supérieure à 85 °C (185 °F).
Cela pourrait endommager l'équipement. L'équipement doit être dans un envi-
ronnement contrôlé.
16. Tout composant non vérifié peut causer des dommages inattendus. Pour garan-
tir une installation correcte, veuillez toujours utiliser les composants (ex. Vis)
fournis avec la boîte d'accessoires.
17. ATTENTION: L'ordinateur est équipé d'un circuit d'horloge temps réel alimenté
par batterie. Il y a un risque d'explosion si la batterie est remplacée de manière
incorrecte. Remplacez uniquement avec le même type ou un type équivalent

ix ARK-3531 User Manual
recommandé par le fabricant. Jetez les piles usagées conformément aux
instructions du fabricant.
18. Débranchez toujours complètement le cordon d'alimentation de votre châssis
lorsque vous utilisez du matériel. Ne faites pas de connexion quand l'appareil
est sous tension. Les composants électroniques sensibles peuvent être endom-
magés par des surtensions soudaines.
19. Niveau de pression acoustique au poste de l'opérateur selon la norme CEI 704-
1: 1982 n'est pas supérieur à 70 dB (A).
20. L'équipement ne doit être installé que dans une zone d'accès restreint.
21. AVERTISSEMENT: Cet ensemble d'instructions est donné conformément à la
norme CEI 704-1. Advantech décline toute responsabilité quant à l'exactitude
des déclarations contenues dans ce.
22. Au moyen d'un cordon d'alimentation connecté à une prise de courant avec
mise à la terre.
23. Ce produit est destiné à être alimenté par un bloc d'alimentation homologué UL
adapté à une utilisation à Tma 50 degrés C min. dont la sortie est conforme à
PS2 (ou LPS), ES1 (ou SELV) et dont la sortie est nominale: 9-36Vdc, 16.65-
4.16A, si besoin d'aide supplémentaire, veuillez contacter Advantech pour plus
d'informations.
24. N'ouvrez jamais l'équipement. Pour des raisons de sécurité, l'équipement ne
doit être ouvert que par du personnel de service qualifié (Par personne quali-
fiée).

ARK-3531 User Manual x

xi ARK-3531 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 specifications............................................................... 4
1.3.2 SUSI 4.0........................................................................................ 5
1.4 Mechanical Specifications......................................................................... 5
1.4.1 Dimensions ................................................................................... 5
Figure 1.1 ARK-3531 Mechanical Dimensions Diagram ............. 5
1.4.2 Weight........................................................................................... 6
1.5 Power Requirements................................................................................. 6
1.5.1 System power ............................................................................... 6
1.6 Operating Environment Specifications ...................................................... 6
1.6.1 Operating temperature.................................................................. 6
1.6.2 Relative humidity........................................................................... 6
1.6.3 Storage temperature ..................................................................... 6
1.6.4 Safety............................................................................................ 6
1.6.5 EMC .............................................................................................. 6
Chapter 2 Hardware Configuration......................7
2.1 Introduction ............................................................................................... 8
2.2 Jumpers .................................................................................................... 8
2.2.1 Jumper Description ....................................................................... 8
2.2.2 Jumper List ................................................................................... 8
Table 2.1: Jumper List ................................................................. 8
2.2.3 Jumper Locations.......................................................................... 9
Figure 2.1 Jumper Layout............................................................ 9
2.2.4 Jumper Settings .......................................................................... 10
2.3 Connectors.............................................................................................. 11
2.3.1 ARK-3531 External I/O Locations ............................................... 11
Figure 2.2 ARK-3531 Front and Rear I/O Connector Diagram.. 11
Figure 2.3 COM Connector........................................................ 12
Table 2.2: COM Connector Pin Assignments............................ 12
Figure 2.4 Ethernet Connector .................................................. 13
Table 2.3: Ethernet Connector Pin Assignments....................... 13
Figure 2.5 Power ON/OFF Button ............................................. 13
Figure 2.6 Audio Connector....................................................... 14
Figure 2.7 LED Indicators .......................................................... 14
Figure 2.8 HDMI Receptacle Connector.................................... 14
Table 2.4: HDMI Connector Pin Assignments ........................... 14
Figure 2.9 USB 3.0 Connector................................................... 15
Table 2.5: USB 3.1 and USB 3.0 Connector Pin Assignments . 15
Figure 2.10VGA Connector ........................................................ 15
Table 2.6: VGA Connector Pin Assignments............................. 15
Figure 2.11DIO Connector.......................................................... 16
Table 2.7: DIO Connector Pin Assignment................................ 16
2.4 Installation ............................................................................................... 17
2.4.1 CPU/Memory Installation ............................................................ 17
2.4.2 Remove Bottom Cover................................................................ 18
2.4.3 HDD/SSD Installation.................................................................. 18

ARK-3531 User Manual xii
2.4.4 miniPCIe/mSATA/m.2 Module Installation.................................. 19
2.4.5 Mounting Kit Installation.............................................................. 19
2.4.6 Wide Operating Temperature Support........................................ 19
Chapter 3 BIOS Settings .................................... 21
3.1 Introduction ............................................................................................. 22
3.2 Entering the Setup .................................................................................. 23
3.2.1 Main Setup.................................................................................. 23
3.2.2 Advanced BIOS Features Setup................................................. 24
3.2.3 Chipset Configuration ................................................................. 47
3.2.4 Security....................................................................................... 61
3.2.5 Boot ............................................................................................ 62
3.2.6 Save & Exit ................................................................................. 63
Appendix A Watchdog Timer Sample Code ........ 65
A.1 EC Watchdog Timer Sample Code......................................................... 66
Appendix B Fixing the LAN order ........................ 67
B.1 Problem Statement ................................................................................. 68
B.2 Addressing the LAN Order...................................................................... 69

Chapter 1
1General Introduction
This chapter details background
information on the ARK-3531
series.

ARK-3531 User Manual 2
1.1 Introduction
Advantech’s ARK-3531 is an intelligent, high-performance, fanless desktop system
powered by 8th & 9th Gen. Intel® Core™ i3/i5/i7 LGA1151 processors. ARK-3531
supports a maximum 35W processor and broad temperature ranges (-20 ~ 60 °C / -4
~ 140 °F). Additionally, it provides multiple I/O — 8x COM, 4x GbE, 2x USB 3.1, 6 x
USB 3.0, 1x miniPCIe (share with mSATA), 1x M.2 (E key), and 2x 2.5" SATA III hard
drive bays.
Rugged Multi-Functional Design
ARK-3531 adopts an advanced thermal design for its desktop processor solution. All
models are fanless, and feature various quality features. These include wide operat-
ing temperatures (-20 ~ 60 °C / -4 ~ 140 °F), diverse expandability options, and struc-
tural strengthening. It supports diverse I/O interfaces — including 4 x Intel® GbE, 2 x
USB 3.1, 6 x USB 3.0, 2 x 2.5" HDD, 1 x miniPCIe, 1 x M.2 (E key) 4 x RS-232/422/
485 and 4 x RS-232 COM ports.
Smart AI solution
ARK-3531 is designed to support VEGA series AI solutions. High computing perfor-
mance is paired with AI computing, yielding an intelligent AI system.
Built-in Intelligent Management Tools — Advantech SUSI API and WISE-Devi-
ceOn
Advantech SUSI API provides a valuable suite of programmable APIs such as multi-
level watchdog, hardware monitoring, system restoration, and other user-friendly
interfaces.
SUSI API is an intelligent self-management cross platform tool that monitors the sys-
tem’s status for problems and takes action in the event of abnormalities. SUSI API
offers a boot up guarantee in critical, low-temperature environments so systems can
automatically recover when voltages dip. SUSI API makes the entire system more
reliable and intelligent. ARK-3531 also supports Advantech’s own WISE-DeviceOn,
which provides easy remote management so users can monitor, configure, and con-
trol a large number of terminals to make maintenance and system recovery simpler.

3 ARK-3531 User Manual
Chapter 1 General Introduction
1.2 Product Features
1.2.1 General
CPU: 8th & 9th Gen. Intel® Core™ i3/i5/i7 LGA1151 desktop processor (up to
35W)
System Chipset: Intel® H370 (Q370 supports by TPN)
BIOS: AMI EFI 128Mbit
System Memory: DDR4 2666Mhz up to 64GB
Watchdog Timer: Single chip Watchdog 255-level interval timer, setup by soft-
ware
I/O Interface: 4 x RS232/422/485, 4 x RS232
USB: 2x USB 3.1, 6x USB 3.0 compliant ports
Audio: High Definition Audio (HD), Line-out/Mic-in
Storage: 2 x 2.5" HDD drive bays (9.5 mm/0.374 in height) and 1 x mSATA
Expansion Interface:
–1 x Full size MiniPCIe (support mSATA and 1 with SIM)
–1 x M.2 (E key for Wi-Fi, suggested installation at Advantech manufacturing)
TPM: TPM2.0
1.2.2 Display
Controller: According to customer-specified CPU selection
Resolution:
–VGA: supports 2048x1280 @ 60 Hz
–HDMI: supports HDMI 1.4, 3840 x 2160 @ 30 Hz
Dual Display:
–VGA+HDMI (Default)
–HDMI+HDMI (Support by TPN)
–DP+VGA (Support by TPN)
–DP+HDMI (Support by TPN)
1.2.3 Ethernet
Chipset:
–LAN1 Intel® i219LM
–LAN2/3/4 Intel ® i210IT (LAN3/4 support by TPN)
Speed: 10/100/1000 Mbps
Interface: Up to 4 x RJ45

ARK-3531 User Manual 4
1.3 Chipset
1.3.1 Functional specifications
1.3.1.1 Processor
1.3.1.2 Chipset
1.3.1.3 Others
Processor Supports 8th/9th Gen. Intel® LGA1151 processor (up to 35W)
Memory Supports DDR4 2666 MHz up to 64GB
2 x 260-pin SODIMM socket type
Internal
Graphics
Features
Direct x 12, OpenGL 4.4
VGA + HDMI
Intel® Display Power saving technology 6.0
Video
Accelerator
HW accelerated Media Decode: H.265/HEVC, H.264/MPEG-4 AVC,
MPEG-2, VC-1/WMV9, JPEG/MJPEG, VP8 and VP9
HW accelerated Media Encode:H. H.265/HEVC, H.264/MPEG-4
AVC, MPEG-2, JPEG/MJPEG and VP8
SATA Interface
Intel® H370 (Q370 supports by TPN) chip supports:
Supports several optional selections of Serial ATA III
Supports SATA data transfer rates of up to 6 Gb/s
Integrated AHCI controller
Supports mSATA socket
USB Interface
Intel® H370 (Q370 supports by TPN) chip supports:
1 x EHCI Host Controller, supporting SuperSpeed USB 3.1/ 3.0 ports
1 x XHCI Host Controllers, supporting HighSpeed USB 2.0 ports
Supports wake-up from sleep states S3
Maximum 500mA for each USB port
Power
Management
Intel® H370 (Q370 supports by TPN) chip supports:
Supports ACPI
ACPI-defined power states (processor driven C states)
ACPI Power Management Timer
SMI# generation
BIOS Intel® H370 (Q370 supports by TPN) chip supports:
AMI 128-Mbit EFI Flash BIOS via SPI
Serial Ports
8x serial ports
Supports IRQ Sharing among serial ports under Microsoft
Windows OS
COM1, COM2, COM5, COM6: RS-232/422/485
COM3, COM4, COM7, COM8: RS-232
Ethernet
LAN1 Intel i219LM, LAN2/3/4 Intel i210IT (LAN3/4 support by TPN)
Supports 10/100/1000 Mbps
LAN Connectors: Phone Jack RJ45 8P 90D (F)
Audio
Audio Codec: ALC888S-VD2-GR
Compliant with HD Audio specifications
Supports 16/20/24-bit DAC and 16/20/24-bit ADC resolution
Supports: Speak-out, Mic-in
Audio Connectors: Ear Phone Jack * 1
Battery Backup BATTERY 3V/210 mAh with WIRE x 1
TPM TPM 2.0

5 ARK-3531 User Manual
Chapter 1 General Introduction
1.3.2 SUSI 4.0
1.4 Mechanical Specifications
1.4.1 Dimensions
200 x 75 x 215 mm / 7.87 x 2.95 x 8.46 in (W x H x D)
Figure 1.1 ARK-3531 Mechanical Dimensions Diagram
SUSI API
Sequence Control Supported
DIO 16-bit programmable DIO
Watchdog Timer Multi-level WDT (set by Advantech iManager)
Programmable 1-255 sec / min
Hardware Monitor CPU Temperature / input Current / input Voltage
System Information Running HR / Boot record

ARK-3531 User Manual 6
1.4.2 Weight
3.2 kg (7 lb)
1.5 Power Requirements
1.5.1 System power
Minimum Power Input: 9 ~ 36VDC
Optional Adapter:
–150W @19V/7.89A power adapter (optional)
–230W @ 24V/9.58A power adapter (optional)
1.6 Operating Environment Specifications
1.6.1 Operating temperature
With extended peripherals: -20 ~ 60 °C (-4 ~ 140 °F) with 0.7m/s air flow
1.6.2 Relative humidity
95% @ 40 °C (104 °F) (non-condensing)
1.6.3 Storage temperature
-40 ~ 85 °C (-40 ~ 185 °F)
1.6.4 Safety
UL, CB, CCC, BSMI
1.6.5 EMC
CE/FCC Class B, CCC, BSMI

Chapter 2
2Hardware
Configuration

ARK-3531 User Manual 8
2.1 Introduction
The following sections show the internal jumper settings and the external connector
pin assignments for different applications.
2.2 Jumpers
2.2.1 Jumper Description
You may configure ARK-3531 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, 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.
2.2.2 Jumper List
closed 2-3closedopen
12 12
closed 2-3closedopen
Table 2.1: Jumper List
J1 Auto Power On Setting
JCMOS1 Clear CMOS
JSETCOM1_V1 COM1 RI power setting