Nexcom NEX 614 User manual

NEXCOM International Co., Ltd.
NEXCOM International Co., Ltd.
Published March 2017 www.nexcom.com
IoT Automation Solutions Business Group
Embedded Computing (Industrial Motherboard)
NEX 614
User Manual

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. ii NEX 614 User Manual
Content
Contents
Preface
Copyright ............................................................................................. iv
Disclaimer.............................................................................................. iv
Acknowledgements ............................................................................... iv
Regulatory Compliance Statements........................................................ iv
Declaration of Conformity...................................................................... iv
RoHS Compliance ................................................................................... v
Warranty and RMA ................................................................................ vi
Safety Information ................................................................................viii
Installation Recommendations...............................................................viii
Safety Precautions.................................................................................. ix
Technical Support and Assistance............................................................ x
Conventions Used in this Manual............................................................ x
Global Service Contact Information........................................................ xi
Package Contents.................................................................................xiii
Ordering Information ............................................................................xiv
Chapter 1: Product Introduction
Overview ................................................................................................1
Key Features ...........................................................................................1
Hardware Specifications..........................................................................2
Knowing Your NEX 614 ..........................................................................4
Chapter 2: Jumpers and Connectors
Before You Begin ....................................................................................5
Precautions ............................................................................................5
Jumper Settings ......................................................................................6
Locations of the Jumpers and Connectors...............................................7
Jumpers..................................................................................................8
AT/ATX Mode Select ...........................................................................8
RTC CMOS Clear Select.......................................................................8
PEGx16 Mode Select ...........................................................................9
RS232/422/485 Voltage Select.............................................................9
Panel PWM/CCFL Mode Select...........................................................10
Panel Power Select ............................................................................10
Connector Pin Definitions .....................................................................11
External Connectors ..........................................................................11
Power Input Connector..................................................................11
COM Port ......................................................................................11
VGA Port .......................................................................................12
DisplayPort.....................................................................................12
HDMI Port......................................................................................13
USB 2.0 Connectors.......................................................................13
LAN1 and Dual USB3.0 Ports..........................................................14
LAN2 and Dual USB3.0 Ports..........................................................15
Audio Connectors..........................................................................16
Internal Connectors...........................................................................17
RTC Battery Connector...................................................................17
CPU FAN Connector.......................................................................17
System FAN Connector...................................................................18
Debug Port ....................................................................................18

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. iii NEX 614 User Manual
Content
COM Port Box Headers .................................................................19
SATA Connectors ...........................................................................19
SIO GPIO Connector.......................................................................20
USB1 Internal Header (USB 2.0)......................................................20
USB2 Internal Header (USB 2.0)......................................................21
Front Panel Connectors..................................................................21
LVDS1 Connector A .......................................................................22
LVDS1 Connector B........................................................................22
Panel Inverter Power Connector .....................................................23
Panel Resolution Pin Header...........................................................23
SATA Power Connectors.................................................................24
Mini-PCIe/mSATA Connector..........................................................25
Block Diagram .................................................................................26
Chapter 3: BIOS Setup
About BIOS Setup.................................................................................27
When to Configure the BIOS.................................................................27
Default Configuration...........................................................................28
Entering Setup......................................................................................28
Legends................................................................................................28
BIOS Setup Utility..................................................................................30
Main .................................................................................................30
Advanced..........................................................................................31
Chipset..............................................................................................44
Security .............................................................................................55
Boot..................................................................................................55
Save & Exit ........................................................................................56
Appendix A: Power Consumption ........................58

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. iv NEX 614 User Manual
Preface
PrefaCe
Copyright
This publication, including all photographs, illustrations and software, is
protected under international copyright laws, with all rights reserved. No
part of this manual may be reproduced, copied, translated or transmitted in
any form or by any means without the prior written consent from NEXCOM
International Co., Ltd.
Disclaimer
The information in this document is subject to change without prior notice and
does not represent commitment from NEXCOM International Co., Ltd. However,
users may update their knowledge of any product in use by constantly checking
its manual posted on our website: http://www.nexcom.com. NEXCOM shall
not be liable for direct, indirect, special, incidental, or consequential damages
arising out of the use of any product, nor for any infringements upon the rights
of third parties, which may result from such use. Any implied warranties of
merchantability or fitness for any particular purpose is also disclaimed.
Acknowledgements
NEX 614 is a trademark of NEXCOM International Co., Ltd. All other product
names mentioned herein are registered trademarks of their respective
owners.
Regulatory Compliance Statements
This section provides the FCC compliance statement for Class B devices and
describes how to keep the system CE compliant.
Declaration of Conformity
FCC
This equipment has been tested and verified to comply with the limits for
a Class B digital device, pursuant to Part 15 of 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 instructions, may cause harmful interference
to radio communications. Operation of this equipment in a residential area
(domestic environment) is likely to cause harmful interference, in which
case the user will be required to correct the interference (take adequate
measures) at their own expense.
CE
The product(s) described in this manual complies with all applicable
European Union (CE) directives if it has a CE marking. For computer systems
to remain CE compliant, only CE-compliant parts may be used. Maintaining
CE compliance also requires proper cable and cabling techniques.

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. vNEX 614 User Manual
Preface
RoHS Compliance
NEXCOM RoHS Environmental Policy and Status
Update
NEXCOM is a global citizen for building the digital
infrastructure. We are committed to providing green
products and services, which are compliant with
European Union RoHS (Restriction on Use of Hazardous Substance in
Electronic Equipment) directive 2011/65/EU, to be your trusted green
partner and to protect our environment.
RoHS restricts the use of Lead (Pb) < 0.1% or 1,000ppm, Mercury (Hg)
< 0.1% or 1,000ppm, Cadmium (Cd) < 0.01% or 100ppm, Hexavalent
Chromium (Cr6+) < 0.1% or 1,000ppm, Polybrominated biphenyls (PBB) <
0.1% or 1,000ppm, and Polybrominated diphenyl Ethers (PBDE) < 0.1% or
1,000ppm.
In order to meet the RoHS compliant directives, NEXCOM has established an
engineering and manufacturing task force in to implement the introduction
of green products. The task force will ensure that we follow the standard
NEXCOM development procedure and that all the new RoHS components
and new manufacturing processes maintain the highest industry quality
levels for which NEXCOM are renowned.
The model selection criteria will be based on market demand. Vendors and
suppliers will ensure that all designed components will be RoHS compliant.
How to recognize NEXCOM RoHS Products?
For existing products where there are non-RoHS and RoHS versions, the
suffix “(LF)” will be added to the compliant product name.
All new product models launched after January 2013 will be RoHS compliant.
They will use the usual NEXCOM naming convention.

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. vi NEX 614 User Manual
Preface
Warranty and RMA
NEXCOM Warranty Period
NEXCOM manufactures products that are new or equivalent to new in
accordance with industry standard. NEXCOM warrants that products will
be free from defect in material and workmanship for 2 years, beginning on
the date of invoice by NEXCOM. HCP series products (Blade Server) which
are manufactured by NEXCOM are covered by a three year warranty period.
NEXCOM Return Merchandise Authorization (RMA)
▪Customers shall enclose the “NEXCOM RMA Service Form” with the
returned packages.
▪Customers must collect all the information about the problems
encountered and note anything abnormal or, print out any on-screen
messages, and describe the problems on the “NEXCOM RMA Service
Form” for the RMA number apply process.
▪Customers can send back the faulty products with or without accessories
(manuals, cable, etc.) and any components from the card, such as CPU
and RAM. If the components were suspected as part of the problems,
please note clearly which components are included. Otherwise, NEXCOM
is not responsible for the devices/parts.
▪Customers are responsible for the safe packaging of defective products,
making sure it is durable enough to be resistant against further damage
and deterioration during transportation. In case of damages occurred
during transportation, the repair is treated as “Out of Warranty.”
▪Any products returned by NEXCOM to other locations besides the
customers’ site will bear an extra charge and will be billed to the customer.
Repair Service Charges for Out-of-Warranty Products
NEXCOM will charge for out-of-warranty products in two categories, one is
basic diagnostic fee and another is component (product) fee.
Repair Service Charges for Out-of-Warranty Products
NEXCOM will charge for out-of-warranty products in two categories, one is
basic diagnostic fee and another is component (product) fee.
System Level
▪Component fee: NEXCOM will only charge for main components such as
SMD chip, BGA chip, etc. Passive components will be repaired for free,
ex: resistor, capacitor.
▪Items will be replaced with NEXCOM products if the original one cannot
be repaired. Ex: motherboard, power supply, etc.
▪Replace with 3rd party products if needed.
▪If RMA goods can not be repaired, NEXCOM will return it to the customer
without any charge.
Board Level
▪Component fee: NEXCOM will only charge for main components, such
as SMD chip, BGA chip, etc. Passive components will be repaired for free,
ex: resistors, capacitors.
▪If RMA goods can not be repaired, NEXCOM will return it to the customer
without any charge.

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. vii NEX 614 User Manual
Preface
Warnings
Read and adhere to all warnings, cautions, and notices in this guide and
the documentation supplied with the chassis, power supply, and accessory
modules. If the instructions for the chassis and power supply are inconsistent
with these instructions or the instructions for accessory modules, contact
the supplier to find out how you can ensure that your computer meets
safety and regulatory requirements.
Cautions
Electrostatic discharge (ESD) can damage system components. Do the
described procedures only at an ESD workstation. If no such station is
available, you can provide some ESD protection by wearing an antistatic
wrist strap and attaching it to a metal part of the computer chassis.

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. viii NEX 614 User Manual
Preface
Installation Recommendations
Ensure you have a stable, clean working environment. Dust and dirt can get
into components and cause a malfunction. Use containers to keep small
components separated.
Adequate lighting and proper tools can prevent you from accidentally
damaging the internal components. Most of the procedures that follow
require only a few simple tools, including the following:
▪A Philips screwdriver
▪A flat-tipped screwdriver
▪A grounding strap
▪An anti-static pad
Using your fingers can disconnect most of the connections. It is recommended
that you do not use needle-nose pliers to disconnect connections as these
can damage the soft metal or plastic parts of the connectors.
Safety Information
Before installing and using the device, note the following precautions:
▪Read all instructions carefully.
▪Do not place the unit on an unstable surface, cart, or stand.
▪Follow all warnings and cautions in this manual.
▪When replacing parts, ensure that your service technician uses parts
specified by the manufacturer.
▪Avoid using the system near water, in direct sunlight, or near a heating
device.
▪The load of the system unit does not solely rely for support from the
rackmounts located on the sides. Firm support from the bottom is highly
necessary in order to provide balance stability.
▪The computer is provided with a battery-powered real-time clock circuit.
There is a 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.

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. ix NEX 614 User Manual
Preface
Safety Precautions
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
equipment and must be easily accessible.
5. Keep this equipment away from humidity.
6. Put this equipment on a stable surface during installation. Dropping it or
letting it fall may cause damage.
7. The openings on the enclosure are for air convection to 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. Place the power cord in a way so that people will not step on it. Do not
place anything on top of the power cord. Use a power cord that has been
approved for use with the product and that it matches the voltage and
current marked on the product’s electrical range label. The voltage and
current rating of the cord must be greater than the voltage and current
rating marked on the product.
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:
a. The power cord or plug is damaged.
b.Liquid has penetrated into the equipment.
c. The equipment has been exposed to moisture.
d.The equipment does not work well, or you cannot get it to work
according to the user’s manual.
e. The equipment has been dropped and damaged.
f. The equipment has obvious signs of breakage.
15. Do not place heavy objects on the equipment.
16. The unit uses a three-wire ground cable which is equipped with a third
pin to ground the unit and prevent electric shock. Do not defeat the
purpose of this pin. If your outlet does not support this kind of plug,
contact your electrician to replace your obsolete outlet.
17. 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.

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. xNEX 614 User Manual
Preface
Technical Support and Assistance
1. For the most updated information of NEXCOM products, visit NEXCOM’s
website at www.nexcom.com.
2. For technical issues that require contacting our technical support team or
sales representative, please have the following information ready before
calling:
– Product name and serial number
– Detailed information of the peripheral devices
– Detailed information of the installed software (operating system,
version, application software, etc.)
– A complete description of the problem
– The exact wordings of the error messages
Warning!
1. Handling the unit: carry the unit with both hands and handle it with care.
2. Maintenance: to keep the unit clean, use only approved cleaning products
or clean with a dry cloth.
3. CompactFlash: Turn off the unit’s power before inserting or removing a
CompactFlash storage card.
Conventions Used in this Manual
Warning:
Information about certain situations, which if not observed,
can cause personal injury. This will prevent injury to yourself
when performing a task.
CAUTION!
CAUTION!CAUTION! Caution:
Information to avoid damaging components or losing data.
Note:
Provides additional information to complete a task easily.

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. xi NEX 614 User Manual
Preface
Global Service Contact Information
Headquarters
NEXCOM International Co., Ltd.
9F, No. 920, Chung-Cheng Rd.,
ZhongHe District, New Taipei City, 23586,
Taiwan, R.O.C.
Tel: [phone]
Fax: [phone]
www.nexcom.com
America
USA
NEXCOM USA
2883 Bayview Drive,
Fremont CA 94538, USA
Tel: [phone]
Fax: [phone]
Email: [email protected]
www.nexcom.com
Asia
Taiwan
NEXCOM Intelligent Systems
Taipei Office
13F, No.920, Chung-Cheng Rd.,
ZhongHe District,
New Taipei City, 23586, Taiwan, R.O.C.
Tel: [phone]
Fax: [phone]
Email: [email protected]
www.nexcom.com.tw
NEXCOM Intelligent Systems
Taichung Office
16F, No.250, Sec. 2, Chongde Rd.,
Beitun Dist.,
Taichung City 406, R.O.C.
Tel: [phone]
Fax: [phone]
Email: [email protected]
www.nexcom.com.tw
Japan
NEXCOM Japan
9F, Tamachi Hara Bldg.,
4-11-5, Shiba Minato-ku,
Tokyo, 108-0014, Japan
Tel: [phone]
Fax: [phone]
Email: [email protected]
www.nexcom-jp.com
China
NEXCOM China
1F & 2F, Block A, No. 16 Yonyou Software Park,
No. 68 Beiqing Road, Haidian District,
Beijing, 100094, China
Tel: [phone]
Fax: [phone]
Email: [email protected]
www.nexcom.cn

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. xii NEX 614 User Manual
Preface
Europe
United Kingdom
NEXCOM EUROPE
10 Vincent Avenue,
Crownhill Business Centre,
Milton Keynes, Buckinghamshire
MK8 0AB, United Kingdom
Tel: [phone]
Fax: [phone]
Email: [email protected]
www.nexcom.eu
Italy
NEXCOM ITALIA S.r.l
Via Lanino 42,
21047 Saronno (VA), Italia
Tel: [phone]
Fax: [phone]
Email: [email protected]
www.nexcomitalia.it
NEXCOM Shanghai
Room 603/604, Huiyinmingzun Plaza Bldg., 1,
No.609, Yunlin East Rd.,
Shanghai, 200333, China
Tel: [phone]
Fax: [phone]
Email: [email protected]
www.nexcom.cn
NEXCOM Surveillance Technology Corp.
Room202, Building B,
the GuangMing Industrial Zone Zhonghua Rd.,
Minzhi Street, Longhua District,
Shenzhen 518131, China
Tel: [phone]
Fax: [phone]
Email: [email protected]
www.nexcom.cn
NEXCOM United System Service
Hui Yin Ming Zun Building Room 1108,
Building No. 11, 599 Yunling Road, Putuo District,
Shanghai, 200062, China
Tel: [phone]
Fax: [phone]
Email: [email protected]
www.nexcom.cn

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. xiii NEX 614 User Manual
Preface
Package Contents
Before continuing, verify that the NEX 614 package that you received is
complete. Your package should have all the items listed in the following table.
Item Part Number Name Description Qty
1 60233ATA48X00 SATA Cable SATA 7P 180D to 180D Connector L:250mm 28AWG 1
2 60233PW149X00 SATA Power Cable EDI:354204040201-RS AMP 4-pin PIT: 2.54mm to SATA 15P L:200mm 1
3 5050600084X00 I/O Shield for NEX 614 VER:A Northern Queen 158.75 x 44.45 x 4.40mm SUS t=0.2mm 1
4 60177A0570X00 NEX 614 Quick Reference Guide VER:A 1
5 602DCD1318X00 NEX 614 CD Driver VER:1.0 1
Optional Accessories
Item Part Number Name Description
1 60233SIO62X00 COM Port Cable CP:NEX-110819-01 UL2651#28x9C-DB9+TU1001-10 L:200mm
2 603USB0061X00 USB Cable CP:NEX-160607-02C USB A Type Male to Dupont 2x4P PIT:2.54mm L=400mm
3 60233ATA48X00 SATA Cable Best SATA 7P 180D to 180D Connector L:250mm 28AWG
4 60233PW149X00 SATA Power Cable EDI:354204040201-RS AMP 4-pin PIT:2.54mm to SATA 15P L:200mm
5 5050200093X00 Intel LGA115X 1U CPU Cooler for NEX 614
COOLJAG:JAC7L07A-B
84 x 84 x 26.4mm AL6063 Fan 5500RPM 12V 4PIN 2543
L:200MM
6 10E000TPM00X0 EBK-TPM-1.2 TPM SLB9660TT1.2 FW4.40
7 10E000TPM01X0 EBK-TPM-2.0 TPM SLB9665TT2.0 FW 5.51
8 7400180003X00 Power Adapter FSP:FSP180-AAAN2 180W 24V/7.5A

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. xiv NEX 614 User Manual
Preface
Ordering Information
The following information below provides ordering information for NEX 614.
NEX 614 (P/N: 10G00061400X0)
Mini-ITX, Intel®6th Gen Skylake Core™ processor family, with DP/HDMI/
VGA/LVDS interface/2 x Gigabit LAN/PCIe x16/mPCIe/8 x USB/4 x COMs/
TPM (option)/3 x SATA/12V~24V DC input

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. 1NEX 614 User Manual
Chapter 1: Product Introduction
ChaPter 1: ProduCt IntroduCtIon
Key Features
▪Support socket LGA1151 for 6th generation Intel®Core™ i7/i5/i3 and
Intel®Celeron®processors (codename Skylake) or next generation Intel
Core™/Celeron®processors
▪Intel®Q170/H110 chipset
▪2 x 260-pin SO-DIMM DDR4 up to 32GB
▪Triple display: HDMI/DP/VGA/LVDS
▪2x GbE with Intel®I219LM and i211-AT
▪1x Full size mini-PCIe
▪4x SATA 3.0
▪4x COM, 7 x USB, 4-in/4-out GPIO, HD audio
▪1x PCIe x16
▪DC +12V~24V input ±5%
Overview

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. 2NEX 614 User Manual
Chapter 1: Product Introduction
Hardware Specifications
CPU Support
▪Socket LGA1151, Intel®6th and next generation Core™ i7/i5/i3 processor
and Intel®Celeron®processors, 14nm process
Main Memory
▪Dual DDR4/SO-DIMMs, up to 32GB
Chipset
▪Intel®H110 PCH
▪Intel®Q170 PCH as optional
BIOS
▪AMI system BIOS
▪Plug and play support
On-board LAN
▪2x RJ45 connectors with Intel®I219LM and i211-AT GbE controller
▪Support PXE boot from LAN, wake on LAN function
Display
▪1x HDMI 1.4 connector (resolution up to 4K/2K@30Hz)
▪1x DP 1.2 connector (resolution up to 4096x2304)
▪1x VGA (resolution up to 1920x1200)
▪1x LVDS (support dual port 24-bit)
Expansion Slot
▪1x mini-PCI express slot support mSATA, Wi-Fi module and 3G module
built with card holder
I/O Interface
▪COM1/3/4: RS232, 9-pin wafer with cable JST connector
▪COM2: RS232/422/485, 1x DB9 male connector on edge I/O
▪USB 2.0/3.0: 7 ports
– USB 3.0 x 4 ports edge connector
– USB 2.0 x 3 ports by 2.54mm pin connector
▪4-in/4-out GPIO
▪2x 7-pin header with PWR button/reset button/PWR LED/HDD LED
▪1x 4-pin fan connector support PWM fan
▪1x 3-pin system fan
Storage
▪3x 7-pin SATA 6Gb/s connector; one supports SATA-DOM
▪4th SATA connector reserved for Q170 as optional to support RAID 0/1/5
▪2x 4-pin connector for SATA power
Audio
▪Realtek ALC886 HD codec
Power Requirements
▪AT/ATX mode (by jumper setting default-AT)
▪4-pin power connector (right angle) for DC power input
▪+12V~24V DC input (with ±5%)
Optional Function
▪TPM module (EBK-TPM)

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. 3NEX 614 User Manual
Chapter 1: Product Introduction
Dimensions
▪170mm (L) x 170mm (W) (6.7”x 6.7”)
Environment
▪Board level operating temperatures: 0°C to 60°C
▪Relative humidity:
– 10% to 90% (operating, non-condensing)
– 5% to 95% (non-operating, non-condensing)
Certifications
▪Meet CE
▪FCC Class A

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. 4NEX 614 User Manual
Chapter 1: Product Introduction
Knowing Your NEX 614
COM
VGA
LAN1
USB 3.0
LAN2
USB 3.0
Dual
USB 2.0
DisplayPort
HDMI
GPIO
Mini-PCIe
Panel ResolutionCPU FAN DIMM1 DIMM2
SATA Power
SATA2 (Q170 only), SATA4
SATA1, SATA3
PCIe x16
RTC Battery
RTC CMOS Clear
COM3, COM4
COM1, Debug
ATX/AT Select
LVDS A, LVDS B
Panel PWM/CCFL Select
Panel Power Select
Panel Inverter Power
PEGx16 Mode Select
RS232/422/485
Voltage Select
Front Panel Headers
System FAN
Audio ConnectorsDC Power
Input

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. 5NEX 614 User Manual
Chapter 2: Jumpers and Connectors
ChaPter 2: JumPers and ConneCtors
This chapter describes how to set the jumpers and connectors on the
NEX 614 motherboard.
Before You Begin
▪Ensure you have a stable, clean working environment. Dust and dirt can
get into components and cause a malfunction. Use containers to keep
small components separated.
▪Adequate lighting and proper tools can prevent you from accidentally
damaging the internal components. Most of the procedures that follow
require only a few simple tools, including the following:
– A Philips screwdriver
– A flat-tipped screwdriver
– A set of jewelers screwdrivers
– A grounding strap
– An anti-static pad
▪Using your fingers can disconnect most of the connections. It is
recommended that you do not use needle-nosed pliers to disconnect
connections as these can damage the soft metal or plastic parts of the
connectors.
▪Before working on internal components, make sure that the power is off.
Ground yourself before touching any internal components, by touching
a metal object. Static electricity can damage many of the electronic
components. Humid environments tend to have less static electricity than
dry environments. A grounding strap is warranted whenever danger of
static electricity exists.
Precautions
Computer components and electronic circuit boards can be damaged by
discharges of static electricity. Working on computers that are still connected
to a power supply can be extremely dangerous.
Follow the guidelines below to avoid damage to your computer or yourself:
▪Always disconnect the unit from the power outlet whenever you are
working inside the case.
▪If possible, wear a grounded wrist strap when you are working inside the
computer case. Alternatively, discharge any static electricity by touching
the bare metal chassis of the unit case, or the bare metal body of any
other grounded appliance.
▪Hold electronic circuit boards by the edges only. Do not touch the
components on the board unless it is necessary to do so. Don’t flex or
stress the circuit board.
▪Leave all components inside the static-proof packaging that they shipped
with until they are ready for installation.
▪Use correct screws and do not over tighten screws.

Copyright © 2016 NEXCOM International Co., Ltd. All Rights Reserved. 6NEX 614 User Manual
Chapter 2: Jumpers and Connectors
Jumper Settings
A jumper is the simplest kind of electric switch. It consists of two metal
pins and a cap. When setting the jumpers, ensure that the jumper caps are
placed on the correct pins. When the jumper cap is placed on both pins, the
jumper is short. If you remove the jumper cap, or place the jumper cap on
just one pin, the jumper is open.
Refer to the illustrations below for examples of what the 2-pin and 3-pin
jumpers look like when they are short (on) and open (off).
Two-Pin Jumpers: Open (Left) and Short (Right)
Three-Pin Jumpers: Pins 1 and 2 are Short
1
2
3
1
2
3