i-PRO WJ-NX400K/GJ Operating manual

Before attempting to connect or operate this product,
please read these instructions carefully and save this manual for future use.
The model number is abbreviated in some descriptions in this manual.
WJ-NX400K/GJ is the same model as the network Disk Recorder WJ-NX400K/G.
Important Information
Network Disk Recorder
Model No. WJ-NX400K
WJ-NX400K/G
WJ-NX400K/GJ
Network Disk Recorder WJ-NX400
123456789

2
The lightning flash with arrowhead symbol,
within an equilateral triangle, is intended to
alert the user to the presence of uninsulat-
ed "dangerous voltage" within the prod-
uct's enclosure that may be of sufficient
magnitude to constitute a risk of electric
shock to persons.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION:
Before attempting to connect or operate this product, please
read the label on the bottom.
The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.
Power disconnection. Unit with or without ON-OFF switches
have power supplied to the unit whenever the power cord is
inserted into the power source; however, the unit is opera-
tional only when the ON-OFF switch is in the ON position.
Unplug the power cord to disconnect the main power for all
units.
WARNING:
• This apparatus must be earthed.
• Apparatus shall be connected to a main socket outlet with a
protective earthing connection.
• The mains plug or an appliance coupler shall remain readily
operable.
• To prevent fire or electric shock hazard, do not expose this
apparatus to rain or moisture.
• The apparatus should not be exposed to dripping or splash-
ing and that no objects filled with liquids, such as vases,
should be placed on the apparatus.
• All work related to the installation of this product should be
made by qualified service personnel or system installers.
• For PERMANENTLY CONNECTED APPARATUS provided nei-
ther with an all-pole MAINS SWITCH nor an all-all pole circuit
breaker, the installation shall be carried out in accordance
with all applicable installation rules.
• The connections should comply with local electrical code.
CAN ICES-3(A)/NMB-3(A)
For Canada
The model number and serial number of this product may
be found on the surface of the unit.
You should note the model number and serial number of
this unit in the space provided and retain this book as a
permanent record of your purchase to aid identification in
the event of theft.
Model No.
Serial No.
For U.S.A.
NOTE: This equipment has been tested and found to com-
ply 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 environ-
ment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harm-
ful interference to radio communications.
Operation 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.
FCC Caution: To assure continued compliance, (example -
use only shielded interface cables when connecting to
computer or peripheral devices). Any changes or modifi-
cations not expressly approved by the party responsible
for compliance could void the user's authority to operate
this equipment.
For U.S.A.
UL listed model No.:
WJ-NX400K
For U.S. and Canada:
WJ-NX400K
For Europe and other countries:
WJ-NX400K/G, WJ-NX400K/GJ
Safety Information
In English: “The equipment must be connected to an earthed
mains socket-outlet”.
In Danish: “Apparatets stikprop skal tilsluttes en stikkontakt
med jord, som giver forbindelse til stikproppens jord”.
In Finnish: “Laite on liitettävä suojakoskettimilla varustettuun
pistorasiaan”.
In Norwegian: “Apparatet må tilkoples jordet stikkontakt”.
In Swedish: “Apparaten skall anslutas till jordat uttag”.
For Denmark, Finland, Norway, Sweden
: Alternating current symbol

3
FOR YOUR SAFETY PLEASE READ THE FOLLOWING TEXT
CAREFULLY.
This appliance is supplied with a moulded three pin mains plug for your
safety and convenience.
A 5 amp fuse is fitted in this plug.
Should the fuse need to be replaced please ensure that the replacement
fuse has a rating of 5 amp and that it is approved by ASTA or BSI to
BS1362.
Check for the ASTA mark or the BSI mark on the body of the
fuse.
If the plug contains a removable fuse cover you must ensure that it is
refitted when the fuse is replaced.
If you lose the fuse cover the plug must not be used until a replacement
cover is obtained.
A replacement fuse cover can be purchased from our dealer.
IF THE FITTED MOULDED PLUG IS UNSUITABLE FOR THE
SOCKET OUTLET IN YOUR HOME THEN THE FUSE SHOULD BE
REMOVED AND THE PLUG CUT OFF AND DISPOSED OF SAFELY.
THERE IS A DANGER OF SEVERE ELECTRICAL SHOCK IF THE CUT
OFF PLUG IS INSERTED INTO ANY 13 AMP SOCKET.
How to replace the fuse
The location of the differs according to the type of AC mains plug (fig-
ures A and B).
Confirm the AC mains plug fitted and follow the instructions below.
Illustrations may differ from actual AC mains plug.
Open the fuse cover with a screwdriver and replace the fuse and close
or attach the fuse cover.
Figure A Figure B
For U.K.
Safety Information (continued)

4
Important safety instructions
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not block any ventilation holes. Install in accordance with the manufacturer’s instructions.
8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that
produce heat.
9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider
than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are
provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obso-
lete outlet.
10) Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where
they exit from the apparatus.
11) Only use attachments/accessories specified by the manufacturer.
12) Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart
is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13) Unplug this apparatus during lightning storms or when unused for long periods of time.
14) Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way,
such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the appara-
tus has been exposed to rain or moisture, does not operate normally, or has been dropped.
S3125A
Safety Information (continued)

5
Contents
Safety Information................................................................................................................... 2
Important safety instructions ....................................................................................................................................................4
Introduction.............................................................................................................................. 6
Preface ......................................................................................................................................................................................6
Standard accessories ...............................................................................................................................................................7
About the user manuals ............................................................................................................................................................ 7
System requirements for a PC ..................................................................................................................................................8
Trademarks and registered trademarks ....................................................................................................................................8
Abbreviations ............................................................................................................................................................................8
GPL/LGPL.................................................................................................................................................................................9
Copyright ..................................................................................................................................................................................9
Disclaimer of warranty ..............................................................................................................................................................9
Warranty for U.S........................................................................................................................................................................ 9
Network security .....................................................................................................................................................................10
Limitation of liability ................................................................................................................................................................10
About HDD Unit ......................................................................................................................................................................10
About Additional Camera Kit (option) .....................................................................................................................................10
About Secure Communication Kit (option)..............................................................................................................................11
Precautions ............................................................................................................................ 12
Major operating controls and their functions..................................................................... 15
Front view................................................................................................................................................................................15
Inside the front cover ..............................................................................................................................................................17
Rear view ................................................................................................................................................................................ 18
User/Host management........................................................................................................ 20
When operating from a PC via a network ............................................................................................................................... 20
HDD unit ................................................................................................................................. 21
Handle the HDD units .............................................................................................................................................................21
HDD unit holding bracket........................................................................................................................................................21
When you transport the recorder ............................................................................................................................................22
Install the HDD unit in recorder...............................................................................................................................................23
Remove the HDD units from recorder.....................................................................................................................................24
Remove the extension unit from recorder...............................................................................................................................24
Troubleshooting..................................................................................................................... 25
Specifications ........................................................................................................................ 28

6
Preface
The network disk recorders WJ-NX400K and WJ-NX400K/G (hereinafter, recorders) equipped H.265 CODEC and are designed
for use within a H.265 surveillance system, and record images/audio from up to 64 network cameras (hereinafter, cameras) on
the hard disk drives (HDDs). Number of cameras to be used in the system (64 cameras in basic system) can be increased to 96
and 128 (maximum) by purchasing the Additional Camera Kit (WJ-NXE40, WJ-NXE40W).
The optional HDDs encased in the provided HDD canisters (hereinafter referred as HDD units) can easily be installed/removed in/
from this recorder.
This recorder can connect the extension unit WJ-HXE400 (option) up to five and support up to 54 HDDs.
This recorder supports connection with a monitor equipped with the HDMI (High-Definition Multimedia Interface) connector.
Connection using an HDMI cable (optional) offers display of playback/live images with superior quality.
It is possible to display images from multiple cameras, switch those images and perform basic operation of the camera.
System Configuration
Main monitor (HDMI)
Powered
speaker
Sub monitor (HDMI) Sub monitor (BNC)
The sub monitor
only displays
live images.
When you register a license
of the additional camera
kit, the camera image will
not be displayed on the
main monitor nor the sub
monitor.
Network camera (× 128 max.)
Network
PC
Introduction

7
About the user manuals
There are 4 sets of operating instructions for the WJ-NX400K, WJ-NX400K/G as follows.
Installation Guide (Printed): Contains procedures of how to install/connect this product with devices and descrip-
tions about "Easy start".
Important Information (this document): Contains preface, precautions, and major operating controls and their functions and
specifications.
Operating Instructions (PDF): Contains descriptions of how to configure the required settings and how to operate
this product. Refer to our support website (https://i-pro.com/global/en/surveillance/
documentation_database).
Quick Reference Guide: Contains descriptions of how to operate functions frequently used.
Adobe®Reader®is required to read the PDF files on the provided CD-ROM. When Adobe®Reader®is not installed on the PC,
download the latest Adobe®Reader®from the Adobe web site and install it.
Depending on descriptions, the model name of this recorder may be omitted as "NX400" in the manuals and on the setup. Refer
to "readme.txt" on the provided CD-ROM for further information about the dedicated software (option) that receives and displays
the event and error information, compatible cameras and their versions.
Refer to our support website (https://i-pro.com/global/en/surveillance/training_support/support/technical_information) for latest
information about the compatible cameras and functions to be added or changed by firmware upgrade.
The external appearance in the document may differ from the actual product within no influence range on operation due to
improvement of the product.
Introduction (continued)
Standard accessories
CD-ROM*1.................................................................................................1 pc.
Mouse ........................................................................................................1 pc.
Installation Guide ........................................................................................1 pc.
Quick Reference Guide...............................................................................1 pc.
Warranty (for U.S. field only)........................................................................1 pc.
Activation Key Card ....................................................................................1 pc.
Terminal Plug (12 pin) .................................................................................2 pcs.
Terminal Plug (16 pin) .................................................................................2 pcs.
Cable Clamp (for fixing cable connected to Terminal Plug)..........................1 pc.
Dust caps for the front USBs*2...................................................................2 pcs.
Power cord (WJ-NX400K) ..........................................................................1 pc.
Power cord (WJ-NX400K/G).......................................................................2 pcs.
Key.............................................................................................................2 pcs.
Label*3.......................................................................................................1 pc.
Rack mounting bracket ..............................................................................2 pcs.
Rack mounting bracket fixing screw ...........................................................6 pcs.
Rack handle ...............................................................................................2 pcs.
Screws for the rack handle .........................................................................4 pcs.
Washer.......................................................................................................4 pcs.
HDD canister..............................................................................................9 pcs.
HDD fixing screw........................................................................................54 pcs.
Power cord clamp ......................................................................................1 pc.
*1 The CD-ROM contains the operating instructions (PDFs). Make sure to read them when installing or setting the recorder.
*2 Put the dust caps for the front USBs on the front copy port and mouse connection port to prevent dust brought by fan's
intake while you are not using a mouse or an external storage device.
*3 This label is the same one found on the surface of this product. Keep it in view when installing this product in the rack.

8
Trademarks and registered trademarks
• Adobe, Acrobat Reader and Reader are either registered trademarks or trademarks of Adobe Systems Incorporated in the
United States and/or other countries.
• Microsoft, Windows, Internet Explorer, ActiveX, and DirectX are either registered trademarks or trademarks of Microsoft
Corporation in the United States and/or other countries.
• Microsoft product screen shot(s) reprinted with permission from Microsoft Corporation.
• Intel and Intel Core are trademarks of Intel Corporation or its subsidiaries in the U.S. and/or other countries.
• The terms HDMI and HDMI High-Definition Multimedia Interface, and the HDMI Logo are trademarks or registered
trademarks of HDMI Licensing Administrator, Inc. in the United States and other countries.
• All other trademarks identified herein are the property of their respective owners.
• Covered by one or more claims of the patents listed at patentlist.accessadvance.com.
Abbreviations
The following abbreviations are used in this manual.
Microsoft®Windows®8.1 is described as Windows 8.
Microsoft®Windows®7 is described as Windows 7.
Windows®Internet Explorer®11 is described as Internet Explorer.
Introduction (continued)
System requirements for a PC
It is recommended to operate this unit using a PC that meets the following system requirements.
OS: Microsoft®Windows®7*1, Microsoft®Windows®8.1, Microsoft®Windows®10
Web browser: Windows®Internet Explorer®11 (32-bit)
CPU: Intel®CoreTM i7-860
Memory: 4 GB or more
Monitor: 1024 × 768 pixels or more, 24-bit True color or better
Network interface: 10BASE-T/100BASE-TX/1000BASE-T 1 port
Audio: Sound card (When using the audio function)
Others: CD-ROM drive: It is necessary to refer to the operating instructions on the provided
CD-ROM.
DirectX®9.0c or later
Adobe®Reader® : CD-ROM drive: It is necessary to refer to the operating instruc-
tions on the provided CD-ROM.
*1 Windows®XP compatibility mode is unavailable.
Important:
• Refer to our support website (https://i-pro.com/global/en/surveillance/training_support/support/technical_information) for
information about the latest operation verification of the supported operating systems and web browsers.
• If using a PC that does not meet the above system requirements, it may cause problems such as slow imaging or the
browser becomes inoperable.
Microsoft®Windows®RT, Microsoft®Windows®7 Starter and Microsoft Edge are not supported.
• When using Microsoft®Windows®8.1, use it in the desktop. The software cannot be used in the Modern UI design.
Note:
• Refer to "Notes about versions of Windows®/Internet Explorer®" (PDF) for further information about system requirements for
a PC and precautions when using Microsoft®Windows®or Windows®Internet Explorer®.

9
Copyright
Except for open source software licensed under GPL/LGPL and so on, distributing, copying, disassembling, reverse compiling
and reverse engineering of the software provided with this product are all expressly prohibited. In addition, exporting any soft-
ware provided with this product violating export laws is prohibited.
GPL/LGPL
• This product contains software licensed under GPL (GNU General Public License), LGPL (GNU Lesser General Public
License), etc.
• Customers can duplicate, distribute and modify the source code of the software under license of GPL and/or LGPL.
• Refer to the "readme.txt" file on the provided CD-ROM for further information about the source code of the software con-
tained in this product and copyright notice comprised in the GPL/LGPL software.
• Please note that i-PRO Co., Ltd. shall not respond to any inquiries regarding the source code.
Disclaimer of warranty
IN NO EVENT SHALL i-PRO Co., Ltd. BE LIABLE TO ANY PARTY OR ANY PERSON, EXCEPT FOR REPLACEMENT OR
REASONABLE MAINTENANCE OF THE PRODUCT, FOR THE CASES, INCLUDING BUT NOT LIMITED TO BELOW:
(1) ANY LOSS OR DAMAGE, INCLUDING WITHOUT LIMITATION, DIRECT OR INDIRECT, SPECIAL, CONSEQUENTIAL OR
EXEMPLARY, ARISING OUT OF OR RELATING TO THE PRODUCT;
(2) ANY INCONVENIENCE, LOSS, OR DAMAGE CAUSED BY INAPPROPRIATE USE OR NEGLIGENT OPERATION OF THE
USER;
(3) ALL MALFUNCTIONS OR TROUBLES FROM UNAUTHORIZED DISASSEMBLE, REPAIR OR MODIFICATION OF THE
PRODUCT BY THE USER, REGARDLESS OF THE CAUSE OF THE MALFUNCTION OR TROUBLE;
(4) INCONVENIENCE OR ANY LOSS ARISING WHEN IMAGES ARE NOT DISPLAYED, DUE TO ANY REASON OR CAUSE
INCLUDING ANY FAILURE OR PROBLEM OF THE PRODUCT;
(5) ANY PROBLEM, CONSEQUENTIAL INCONVENIENCE, OR LOSS OR DAMAGE, ARISING OUT OF THE SYSTEM
COMBINED BY THE DEVICES OF THIRD PARTY;
(6) ANY CLAIM OR ACTION FOR DAMAGES BROUGHT BY ANY PERSON OR ORGANIZATIO AS A PHOTOGRAPHED
SUBJECT DUE TO VIOLATION OF PRIVACY CONCERNING A SURVEILLANCE CAMERA'S PICTURE OR SAVED DATA,
FOR SOME REASON (INCLUDING USE WHEN USER AUTHENTICATION ON THE AUTHENTICATION SETTING SCREEN IS
SET TO OFF), BECOMING PUBLIC OR BEING USED FOR ANY PURPOSE;
(7) LOSS OF REGISTERED DATA CAUSED BY ANY FAILURE (INCLUDING INITIALIZATION OF THE PRODUCT DUE TO
FORGOTTEN AUTHENTICATION INFORMATION SUCH AS A USER NAME AND PASSWORD).
Warranty for U.S.
WJ-NX400K is warranted for three years. Refer to the warranty (accessory) about further information.
Introduction (continued)

10
About HDD Unit
To install a hard disk drive in the recorder, it is necessary to assemble an HDD unit (encase the hard disk drive in the HDD canis-
ter).The HDD unit is designed to easily install/remove the hard disk drive in/from the recorder.
Contact your dealer about purchasing, installing, and replacing the hard disk drives.
About Additional Camera Kit (option)
Number of cameras to be used in the system (64 cameras in basic system) can be increased to 96 and 128 (maximum) by pur-
chasing the Additional Camera Kit (WJ-NXE40, WJ-NXE40W: option). Refer to following table regarding camera numbers.
Additional Camera Kit
WJ-NXE40, WJ-NXE40W
(license for 32 cameras)
NX400 only
(No additional license)
one Additional Camera Kit
(one additional license)
two Additional Camera Kit
(two additional licenses)
up to 64 cameras up to 96 cameras up to 128 cameras
Limitation of liability
THIS PUBLICATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE, OR
NON-INFRINGEMENT OF THE THIRD PARTY’S RIGHT.
THIS PUBLICATION COULD INCLUDE TECHNICAL INACCURACIES OR TYPOGRAPHICAL ERRORS.
CHANGES ARE ADDED TO THE INFORMATION HEREIN, AT ANY TIME, FOR THE IMPROVEMENTS OF THIS PUBLICATION
AND/OR THE CORRESPONDING PRODUCT (S).
Introduction (continued)
Network security
As you will use this unit connected to a network, your attention is called to the following security risks.
①Leakage or theft of information through this unit
②Use of this unit for illegal operations by persons with malicious intent
③Interference with or stoppage of this unit by persons with malicious intent
It is your responsibility to take precautions such as those described below to protect yourself against the above network security risks.
• Use this unit in a network secured by a firewall, etc.
• If this unit is connected to a network that includes PCs, make sure that the system is not infected by computer viruses or
other malicious entities (using a regularly updated anti-virus program, anti-spyware program, etc.).
• Protect your network against unauthorized access by restricting users to those who log in with an authorized user name and
password set by using user authentication.
• Apply measures such as user authentication to protect your network against leakage or theft of information, including image
data, authentication information (user names and passwords), alarm mail information, FTP server information and DDNS
server information.
• After the unit is accessed by the administrator, make sure to close the browser.
• Change the administrator password periodically. Keep the authentication information (your user name and password) in a
safe place free from public view.
• Do not install the camera in locations where the camera or the cables can be destroyed or damaged by persons with malicious intent.

11
Registering a license of a secure communication kit (option) to the recorder enables secure communication with cameras. Each
secure communication kit differs in the number of cameras that can be registered as shown in the table below. Use several
licenses as necessary.
WJ-NXS01, WJ-NXS01W WJ-NXS04, WJ-NXS04W WJ-NXS16, WJ-NXS16W WJ-NXS32, WJ-NXS32W
1 camera 4 cameras 16 cameras 32 cameras
About Secure Communication Kit (option)
Introduction (continued)
Important:
• The following functions are not available when registering the additional camera kit license.
∙ Display of the camera image on the main and the sub monitors connected to the recorder
* Camera images will be displayed on the web browser of the PC, but not on the main or sub monitor.
∙ Fisheye correction display of fisheye cameras
* Please use video monitoring software WV-ASM300 (option, as of February 2017) when you use fisheye image correction
display.
∙ Display, search, playback and copy of the recorded image on the main monitor connected to the recorder
∙ Sub-stream recording
∙ Re-encoding transmission
∙ A part of setup menu operation
* The main monitor displays not a camera image but a special menu. The sub monitors turn black.

12
Refer installation work to the dealer.
Installation work requires technique and experiences. Failure
to observe this may cause fire, electric shock, injury, or dam-
age to the product.
• Be sure to consult the dealer.
Do not disassemble nor alter this product.
Failure to observe this may cause fire or electric shock.
• Ask your dealer for inspection and repair.
Do not insert any foreign objects.
Do not allow any foreign object or liquid such as water, a
metallic part, etc. to enter since it may cause fire or electric
shock.
• If it happens, disconnect the power plug from the elec-
tric outlet immediately and contact your dealer.
Stop the operation immediately when something is
wrong with this product.
When smoke goes up from the product or the smell of
smoke comes from the product, continued use will result in
fire, injury, or damage to the product.
• Turn off the power of this product immediately, and then
contact your dealer.
Avoid placing receptacles that contain liquids such as
water on/near this product.
If liquid spills onto this product, it may cause fire or an elec-
tric shock.
• If it happens, disconnect the power plug from the elec-
tric outlet immediately and contact your dealer.
Clean the power plug periodically to keep it dust free.
Dust can cause the insulation to be damaged and cause a fire.
• When cleaning, disconnect the power plug and wipe
with a clean dry cloth.
Do not install this product in an unstable location.
Selecting an inappropriate installation surface may cause the
product to fall down or topple over, resulting in injury.
Do not touch this product, power cord and connected
cables when thunder is heard.
Failure to observe this may cause electric shock.
Do not connect/disconnect the power plug with wet
hands.
Failure to observe this may cause electric shock.
Avoid doing anything that can damage the power
cord/plug.
Do not damage, modify, forcefully bend, twist, stretch or
bundle the power cord, and do not put a heavy thing on the
power cord.
Using a damaged power cord can cause electric shock,
short circuit, fire, etc.
• Contact your dealer for repair of the power cord and
plug.
Grounding
The power plug of this product is 2-prong plug equipped
with a grounding terminal. Use this product after confirming
that grounding is properly installed.
If grounding is not installed properly, it may cause ground
leakage or damage the product resulting in electric shock.
• Contact the dealer for details. (The grounding installation
cost is not included in the price of this product.)
Do not engage in work related to the installation and
wiring during the power is on.
Failure to observe this may cause fire or electric shock.
Hold the power plug to disconnect the power cord.
Do not pull the power cord since it can cause fire, electric
shock, etc.
Connect the power plug firmly.
If the power plug is not connected firmly, it can cause fire,
electric shock, etc.
• Do not use the damaged power cord and loose electric
outlets.
Do not connect to outlets or wiring device if their
ratings are beyond the specified rating.
If the rating goes over the specified rating such by putting
many loads on one electric outlet, it can cause generation of
heat resulting in fire.
Do not strike or give a strong shock to this product
Failure to observe this may cause fire or electric shock.
Avoid placing this product in locations which are
subject to humidity and dust.
Failure to observe this may cause fire or electric shock.
Do not block the ventilation holes.
Doing so can cause fire since it can raise the temperature
inside this product high.
Precautions

13
When the product is accessible from the Internet
To prevent unauthorized access, note the following.
• Leave user authentication turned on.
• Periodically change passwords that are used to access
the product.
Refer to the Operating Instructions (PDF) on our support website
for information about how to change passwords.
Power source
The input power source for this product is 120 V AC 60 Hz
(WJ-NX400K), 220 V - 240 V AC 50 Hz/ 60 Hz
(WJ-NX400K/G).
Do not connect to the outlet that provides the power to
equipment that requires a measurable amount of power
(such as a copy machine, air conditioner, etc.). Avoid placing
this product in locations where is subject to water.
* The provided power cord(s) is (are) dedicated to the use
with this product. Do not use with any other device. Also,
do not use any other power cord with this product.
Ambient operating temperature
Use this product at temperatures between +5 °C to +45 °C
{41 °F to 113 °F}. Failure to do so may damage the internal
parts or cause malfunction.
* Performance and lifetime of hard disk drives are easily
affected by heat (used at high temperature). It is recom-
mended to use this product at a temperature of approx.
+25°C {77 °F}.
POWER switch
The POWER switch is located at the rear of this product.
Even though the POWER switch is set to "OFF", the power
supply will not be cut. To cut the power supply, remove the
power plug of this product from the AC outlet.
Built-in backup battery
• Do not expose the built-in battery to excessive heat such
as sunlight, fire, etc.
Hard disk drive (HDD)
• Hard disk drives are precision devices. Handle them with
care. It is possible to damage them if they are moved
while their motors are still running.
• Please be forewarned that any loss of information on the
HDD is not guaranteed under any circumstances.
• Do not move or install this product just after turning the
power on or off (for around 30 seconds.) The hard disk
drives are running.
• The HDD is consumable and the lifetime differs depending
on the operational environment. Write errors may occur
frequently after around 20,000 hours of each HDD
operation and head and motor deterioration may occur
after around 30,000 hour of operation. They will reach
the end of their lifetime after 30,000 hours of operation if
they have been used at the recommended ambient
temperature (approx. +25 °C {77 °F}).
• To prevent data loss from disk crashes, it is recom-
mended to keep the ambient operating temperature at
approx. +25 °C {77 °F} and to replace them after around
18000 hours of operation.
You can check the operating time of each HDD in
"Operation" of the "HDD information" tab under
"Maintenance" under "Advanced" from the setup menu.
• When hard disk drive trouble occurs, replace it immedi-
ately. Contact your dealer about servicing.
About external storage devices (External HDD and
USB memory)
• An external hard disk drive or a USB memory that is
compatible with USB3.0 can be connected to the copy
port to use as the external storage device.
• Use external storage devices formatted in exFAT, FAT
(FAT16) or FAT32.
• USB media recognizable by the recorder can be format-
ted by the recorder. Refer to Operating Instructions
(PDF) for the format procedure.
• External storage devices requiring password authentica-
tion or a special driver or using an encryption function
cannot be used.
Prevent condensation from forming
If this happens, it can cause malfunction.
Leave it switched off for around 2 hours in the following
cases.
• When this product is placed in an extremely humid
place.
• When this product is placed in a room where a heater
has just been turned on.
• When this product is moved from an air-conditioned
room to a humid and high-temperature room.
About the monitor
When displaying the same image on the PC monitor for a
long time, it may cause image burn-in on the PC monitor.
Cleaning
• Turn the power off, and then use a soft cloth to clean
this product.
• Do not use strong or abrasive detergents when cleaning
the body.
• When using a chemical cloth for cleaning, read the cau-
tion provided with the chemical cloth product.
Product disposal/transfer
Images saved on the storage device used with this product
may lead to personal information leakage. When it is neces-
sary to dispose or give this product to someone, even when
for repair, make sure that there is no data on the hard disk
drives.
Precautions for use
Precautions (continued)

14
Indication label
Refer to the indication label placed on the surface of this
product for the equipment classification and power source,
etc.
AVC Patent Portfolio License
THIS PRODUCT IS LICENSED UNDER THE AVC PATENT
PORTFOLIO LICENSE FOR THE PERSONAL USE OF A
CONSUMER OR OTHER USES IN WHICH IT DOES NOT
RECEIVE REMUNERATION TO (i) ENCODE VIDEO IN
COMPLIANCE WITH THE AVC STANDARD ("AVC VIDEO")
AND/OR (ii) DECODE AVC VIDEO THAT WAS ENCODED
BY A CONSUMER ENGAGED IN A PERSONAL ACTIVITY
AND/OR WAS OBTAINED FROM A VIDEO PROVIDER
LICENSED TO PROVIDE AVC VIDEO.
ADDITIONAL INFORMATION MAY BE OBTAINED FROM
MPEG LA, L.L.C.
SEE HTTP://WWW.MPEGLA.COM
About reboot of this product
In the following cases, this product will automatically reboot
to continue recording.
• When the software of this product has detected the
internal error and reboot becomes necessary.
Disclaimer of warranty on recoded data
i-PRO Co., Ltd. assumes no responsibility or liability, directly
or indirectly, for failure of recording or editing including loss
of data due to any reason or cause which does not exclude
repair or maintenance of this product regardless whether the
subject is hard disk or other parts.
Packing box, Cushion, HDD unit holding bracket
When transporting the recorder, it is necessary the Packing
case, Cushion and HDD unit holding bracket to prevent the
recorder from damage by fall or vibration. Keep them prop-
erly to use again.
About transportation
The recorder weighs over 10 kg{22.1 lbs}. Be careful not to
drop the recorder when installing it into a rack. Dropping
may cause damage, deformation of the recorder, or injury.
Precautions (continued)

15
Front view
①Error indicator [ERROR]
Blinks when an error that can become a problem for the
recorder to run the system occurs.
Blinks red: System error (Network link error, HDD error,
Recording error, etc.)
Blinks orange: Thermal error, cooling fan malfunction, etc.
Shows a solid light when automatically reset from an error status.
②Alarm indicator [ALARM]
Blinks when an alarm occurs, and lights when the alarm
output stops. This indicator will go off when the [Reset]
button (☞Operating Instructions (PDF)) is clicked.
③LCD
Indicates the day and time, the status of the recorder (error
status, etc.), or the name of the functions available using
the buttons on the front panel of the recorder. The recorder
requires a main monitor or a PC for settings. You cannot
setup the settings using the LCD of the recorder only.
④Buzzer stop button [BUZZER STOP]
Press this button to stop the buzzer that started sounding at
an alarm/error occurrence. Refer to the Operating Instruc-
tions (PDF) for further information about alarms and errors.
⑤HDD access indicator (1~9)
It transmits the HDD status indicator and the HDD
access indicator installed in the front cover.
HDD status indicator (left side)
Indicates the operational status of the respective hard
disk drive. (☞ Page 17)
HDD access indicator (right side)
Indicates the status (access/failure) of the respective
hard disk drive. (☞ Page 17)
Basically, each indicator will indicate the status of the
respective HDD units (HDD unit 1 to 9), but each
indicator will be the same when the system error occurs.
Important:
• When the indicator lights red in the RAID1/RAID5/RAID6
mode, replace the HDD unit with the error immediately.
Contact your dealer about replacing the HDD unit.
• In the RAID5 mode:
When 2 or more HDD access indicators light/blink red, it
may be impossible to recover data on the respective
hard disk drives.
• In the RAID6 mode:
When 3 or more HDD access indicators light/blink red, it
may be impossible to recover data on the respective
hard disk drives.
⑥Key hole
Use the provided key to open/close the front cover. Keep
the key in a safe place.
Lock the front cover: Insert, push and turn the key to the
left.
Unlock the front cover: Insert, push and turn the key to
the right.
⑦Copy port (USB3.0) [COPY]
Connect an external storage device (external Hard disk
drive, USB memory) to this port and copy images and
audio recorded on the hard disk drive. An external
storage device can also be connected to the copy port
on the rear. Use either of them.
* Mouse connection is also available.
⑧Mouse connection port (USB2.0) [MOUSE]
The provided mouse is connected to this port. A mouse
can be connected to the mouse connection port on the
rear. Use either of them.
⑨Operation indicator [OPERATE]
Lights when the power is on.
➀
⑦
⑧
⑨ ⑩ ⑪ ⑫
➁ ➃ ⑥➄➂
Major operating controls and their functions

16
⑩Recording indicator [REC]
Lights orange when recording is being performed.
⑪LCD menu switching button [LCD SW]
Use this button to switch menus on LCD, i.e. from/to the
date/time display (default) to/from the IP address display
of the recorder.
If an error message is displayed on the LCD, the
message will be deleted if this button is pushed and it
will return to the date/time display.
⑫Front cover
Open the front cover when adding/replacing the HDD
unit.
Keep this cover closed and locked during normal
operation.
Major operating controls and their functions (continued)

17
Inside the front cover
①HDD units [Option]
Only the hard disk drive encased in the dedicated hard
disk drive canister (HDD units) can be installed in the
recorder.
Contact your dealer about purchasing, installing, and
replacing the hard disk drives.
②HDD status indicator [STS]
Indicates the operational status of the respective hard
disk drive.
Lights green: Indicates that the power of the (formatted)
hard disk is on.
Blinks green: Indicates that the respective hard disk
drive is for playback use only.
(Recording is unavailable using the respective hard
disk drive.)
Blinks orange: Indicates that the respective hard disk
drive is currently being formatted, added or removed.
Blinks red: Indicates that formatting of the hard disk
drive has failed.
Off: Indicates that the power of the hard disk drive is off,
Indicates that the hard disk drive is not connected/
recognized.
③HDD access/failure indicator (A/F)
Indicates the status (access/failure) of the respective
hard disk drive.
When an HDD failure (error) occurs during operation in
the RAID1/RAID5/RAID6 mode, the indicator will light/
blink red.
Blinks green: Indicates that the respective hard disk
drive is being accessed.
Off: Indicates that the respective hard disk drive is not
being accessed.
Lights red: Indicates that the respective hard disk drive
is faulty (which can be recovered by replacing the
hard disk drive)
In the RAID1/RAID5 mode, it indicates that the
respective hard disk drive is the first faulty drive.
In the RAID6 mode, it indicates that the respective
hard disk drives are the first and second faulty drive.
Blinks red: Indicates that the respective hard disk drive
is faulty (which cannot be recovered even by replac-
ing the hard disk drive)
In the RAID5 mode, it indicates that the respective
hard disk drive is the second faulty drive.
In the RAID6 mode, it indicates that the respective
hard disk drive is the third faulty drive.
Blinks orange: Indicates the drive in data recovery in
RAID1/RAID5/RAID6 mode (it may appear that the
indicator lights orange when recovery is being pro-
cessed at high speed)
④HDD slots
Up to 9 HDD units can be installed.
⑤Maintenance port (For maintenance purpose only)
Use this port to connect directly to a PC and perform
maintenance operations. Do not use for normal
operation.
⑥Restart switch
Restarts the recorder. Insert a fine stick, like a paper clip
and keep pressing for more than 5 seconds.
⑦HDD unit holding bracket fixing thread hole
Use this hole to fix the HDD unit holding bracket when
transporting the recorder.
* The following illustration shows that 9 HDD units are installed with the "HDD unit holding brackets" removed.
Major operating controls and their functions (continued)
➀ ➁ ➂ ➃ ➄
➆➅

18
Rear view
①Alarm/Control connector [ALARM/CONTROL]
This connector is used when connecting with an external
device such as a sensor or anti-theft door switch that out-
put alarm signals, or when connecting an alarm device
such as a buzzer or a lamp to the external equipment.
The two provided terminal plug (12 pin) can be mounted.
②Alarm In connector [ALARM IN]
It is used when connecting with an external device such as
a sensor or anti-theft door switch that output alarm signals.
The two provided terminal block plugs (16) can be mounted.
③Security wire hole
Mount the lock device for the anti-theft security wire.
④Cable clamp fixing hole (for fixing terminal block
cable)
This is a fitting hole for the (provided) clam to tie and fix the
terminal block cables. Refer to ☞ page 19 for fitting.
⑤Copy port (USB3.0) [COPY]
Connect an external storage device (external Hard disk
drive, USB memory) to this port and copy images and
audio recorded on the hard disk drive. An external
storage device can also be connected to the copy port
on the front. Use either of them.
* Mouse connection is also available.
⑥Mouse connection port (USB2.0) [MOUSE]
The provided mouse is connected to this port. The
mouse can be connected to the mouse connection
ports on the front. Use either of them.
⑦Network port (PC port) [PC]
Connect the recorder with a PC via a network compati-
ble with 10BASE-T, 100BASE-TX or 1000BASE-T. Use
this port when the cameras and the PC are connected
to different network.
⑧Network port (Camera/PC port) [CAMERA/PC]
Connect the recorder with a PC and cameras via a
network compatible with 10BASE-T, 100BASE-TX or
1000BASE-T. When the port is being accessed, the
access indicator (green) blinks. When the port is being
linked, the link indicator (orange) lights.
Camera/PC
Access indicator Link indicator
PC
LAN (10/100/1000 BASE-T)
⑨Audio output connector (RCA pin jack)
[AUDIO OUT]
Connect such device as a powered speaker. Same
audio output to the main monitor will be output from this
connector.
⑩Video output connector (BNC) [VIDEO OUT]
Connect a sub monitor (BNC) to this connector. Same
images output from the sub monitor output connector
(HDMI) will be output from this connector.
The default is NTSC output. The setup menu will not be
displayed.
⑪Main monitor output connector (HDMI)
[A/V OUT MAIN]
This connector is used to connect to an HDMI-ready
monitor (the main monitor). It displays live images,
recorded images, or the setup menu of the recorder.
⑫Sub monitor output connecter (HDMI)
[VIDEO OUT SUB]
This connector is used to connect to an HDMI-ready
monitor (sub monitor). Only the live images will be dis-
played.
➀
⑧ ⑨ ⑩ ⑪ ⑫ ⑬
➁
➄
⑥
⑰
➂
➃
⑭⑦ ⑮⑯
Major operating controls and their functions (continued)

19
⑬ External storage connector [EXT STORAGE (5 V 50 mA)]
Connect the optional extension unit (WJ-HXE400) to this
connector using the dedicated connection cable
provided with the extension unit.
Make sure to connect the extension units in order from
external storage connector number 1.
⑭Cable clamps fixing holes
Fit the cable clamp (provided with the extension unit) to fix
the connection cable. Refer to the operating instructions
of the extension unit WJ-HXE400 for further information.
⑮Power cord inlet [AC IN]
Connect the provided power cord to this inlet. The
power plug of the recorder is 2-prong plug equipped
with a grounding terminal.
How to use the power cord clamp
Fix the power cord at 15 cm to 20 cm {5-7/8 to 7-7/8 inches}
from the connector with the provided power cord clamp
passed through the clamp mount.
⋇
⋈
Clamp mount
Power cord clamp
①Pass the power cord clamp through the clamp mount.
②Make a ring with the power cord clamp as shown in
the illustration to tighten the power cord.
⋉
15 cm to 20 cm
{5-7/8 to 7-7/8 inches}
③Tighten the power cord at 15 cm to 20 cm {5-7/8 to
7-7/8 inches} from the connector and fix it to the
clamp mount.
Cut the unnecessary part of the power cord clamp as
necessary.
⑯[POWER] switch
Press it to turn on the power. Press it again to turn off
the power.
Important:
• Turn on the power of all extension units first if
connected, and then turn on the power of the recorder.
• Turn off the power of the recorder first when turning off
the power.
⑰SIGNAL GND terminal [SIGNAL GND]
Connect this terminal with the SIGNAL GND terminals of
the devices in the system for signal ground. When
operating the recorder and the devices in the system
without signal ground, noise may be produced.
Fitting of the cable clamp (for
fixing the terminal block cables)
⋇
⋈
①Insert the (provided) cable clamp into the cable clamp
fitting hole.
②Tie cables of the ALARM/CONTROL terminals and of
the ALARM IN terminal with the cable tie of the cable
clamp (provided).
Tie the cables to the downward-right so that they do
not block the network port.
⋉
③Fasten the cable tie of the cable clamp (provided) and
fix it to the upward-right.
Major operating controls and their functions (continued)

20
It is necessary to register users who operate the recorder and hosts (PC) that accesses the recorder via a network such as a
LAN. Up to 32 users can be registered.
It is possible to register the following for the user information.
Item Description
User name User name is to be registered to log in to the recorder. The user name will be entered at the time
of login.
Password Password is to be registered to log in to the recorder together with the user name. The pass-
word will be entered at the time of login.
Level Users are classified into the following levels depending on the available operations.
Administrator/Manager/Operator/Viewer/Logged out
The administrators can perform all the configurations and operations. It is possible to select in
advance the functions that can be controlled by users at other levels. (☞Operating Instructions
(PDF))
Priority level Priority level indicates the operational priority. Users at each level are assigned the fixed priorities
ranging from "0" (Highest) to "4" (Low).
Administrator 0 Highest
Manager 1 High
Operator 2
Viewer 3
Logged out 4 Low
When the two or more users at the same level perform the same operation, the recorder will be
controlled in accordance with the latest operation.
Default screen Select a startup screen to be displayed on the main monitor or a PC screen after login from the
following.
When operating from a PC via a network
Operation of the recorder can be made using a PC via a network. Up to 16 hosts (PCs) can access the recorder at the same
time.
When another host (PC) tries to log in to the recorder after 16 hosts (PCs) have already logged in, the user with the lowest priority
will be logged out. When the user who is trying to log in has the same priority as the users who have already logged in, the user
whose login is the earlier is logged out.
When accessing the recorder from a PC via a network, the log-in authentication method is different as follows depending on the
"User authentication" settings of the "Basic" tab under "User management" under "Advanced" from the setup menu.
(☞Operating Instructions (PDF))
User authentication setting User/Host to log in Remarks
Off Log in as an administrator.
On (default) Log in as a registered user. The login window will be displayed.
User/Host management