Panasonic WJHDE300 - DIGITAL DISK RECORDER User manual

Extension Unit
Instructions
Model No. WJ-HDE300
WJ-HDE
300
Extension Unit
Before attempting to connect or operate this product,
please read these instructions carefully and save this manual for future use.

2
The serial number of this product may be found on the rear
of the unit.
You should note the 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. WJ-HDE300
Serial No.
The lightning flash with arrowhead sym-
bol, within an equilateral triangle, is
intended to alert the user to the pres-
ence of uninsulated "dangerous voltage"
within the product's enclosure that may
be of sufficient magnitude to constitute a
risk of electric shock to persons.
The exclamation point within an equilat-
eral triangle is intended to alert the user
to the presence of important operating
and maintenance (servicing) instructions
in the literature accompanying the appli-
ance.
Power disconnection. Unit with or without
ON-OFF switches have power supplied to
the unit whenever the power cord is insert-
ed into the power source; however, the unit
is operational only when the ON-OFF
switch is in the ON position. The power
cord is the main power disconnect for all
units.
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
SA 1965
SA 1966
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 pro-
vide 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 harmful
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 com-
puter or peripheral devices). Any changes or modifications
not expressly approved by the party responsible for compli-
ance could void the user’s authority to operate this equip-
ment.
For U.S.A.
WARNING:
• To prevent fire or electric shock hazard, do not expose this appliance to
rain or moisture. The apparatus shall not be exposed to dripping or
splashing and that no objects filled with liquids, such as vases, shall be
placed on the apparatus.
• All work related to the installation of this product should be made by
qualified service personnel or system installers.
CAUTION:
•Read the label on the rear of the unit for identification of this product,
and the power ratings.
This Class A digital apparatus complies with canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme
NMB-003 du Canada.
For Canada

3
■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 openings. Install in accordance with the manufacturer's instructions.
8) Do not use 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
obsolete outlet.
10) Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the points
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-overs.
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 fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate normally, or has been dropped.
S3125A

4
Contents
■Important Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
■General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
■Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
■Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
●Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
●Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
●Inside the Front Lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
■Replacing/Mounting HDDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
●Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
■Mounting in a Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
●Unit Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
●How to Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
■Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
●Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
■Setup Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
●Basic Setups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
●Changing Setups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
●Recovery of RAID5 Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
●Unit Number Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
■Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
■Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
■Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5
■Precautions
•Do not operate the appliance beyond its specified tem-
perature, humidity or power source ratings.
Do not use the appliance in an extreme environment
where a high temperature or high humidity exists. Use
the appliance at temperatures within +5 °C to +45 °C
(41 °F to 113 °F) and humidity below 85 %.
The input power source for this appliance is 120 V AC
60 Hz.
•Avoid shock and vibration
Shock or vibration may damage the HDD.
The HDDs are fragile especially when the HDD motors
are revolving and the HDD POWER indicator lights. Be
sure to turn off either switch: the POWER switch on the
rear panel, or the HDD POWER switch inside the front
lid: before you mount the unit into a rack or dismount it.
Do not move the HDD for 30 seconds after turning off
the power.
•Pay attention to static electricity
Put your hand on a metallic surface to discharge static
electricity before installation.
Do not touch components mounted on the HDD directly
with your hand.
Hold only the two sides of the HDD when installing.
■General
The extension unit WJ-HDE300 can accommodate up to four hard disk drives per unit to add available disk space to the digital
disk recorder WJ-HD316A/WJ-HD309A series. Up to seven extension units can be connected to a digital disk recorder. The
units can be operated in RAID level 5* mode for high tolerance to disk error.
*RAID level 5 (Redundant Arrays for Independent Disks, independent data disks with distributed parity blocks)
RAID level 5 regards 3 or more drives as one drive, and it is possible to read data by automatically attaching error correc-
tion data even though one of the drives is broken. (It is impossible to read data if 2 or more drives are broken.)
RAID level 5 requires a minimum of 3 drives per unit.
When using the RAID function, the logical disk size of the extension unit will be as below.
Logical disk size = Smallest size of the disk among the disks in the extension unit x (Number of the disks in the extension
unit - 1) The actual space may be several percent lower than the logical space.
*Important
When set to RAID level 5, the digital disk recorder will not access the HDD preinstalled in it, but will access only the HDDs
in the extension unit.
•Avoid condensation on the surface of the HDD.
If this happens, do not turn on the power of the appli-
ance and leave the appliance for around 2 hours.
Wait until the dew evaporates in any of the following
cases.
•The appliance is moved to a place significantly dif-
ferent in temperature or humidity.
•The appliance is moved out from an air-conditioned
room.
•The appliance is placed in an extremely humid
place.
•The appliance is placed in a room where a heater
has just been turned on.
•Consumable parts
Contact your dealer about replacement when the time
comes.
A hard disk drive needs replacing after a certain length
(depends on the model) of operation.
Cooling fans also need replacing after around
20 000 - 30 000 hours of operation.
•Do not block the ventilation opening or slots on the
cover.
To prevent the appliance from overheating, place it at
least 5 cm (2 inches) away from the wall.
•Avoid placing the unit on an inclined surface.
Otherwise, malfunction or damage to the disk may
occur. Place the unit in a horizontal position.

6
■Appearance
●Front View
qError indicator [ERROR]
Lights when an error occurs. Refer to Troubleshooting
for details.
Red: System error
Orange: Thermal error or malfunction of the cooling fan.
wHDD power indicator [HDD POWER]
ON: Indicates that the HDDs are powered.
OFF: Indicates that the HDDs are not powered.
Notes:
•Do not move or shock the unit while this indicator is
lit. Otherwise, the HDDs will be damaged.
•This indicator will light and go out by the setting of
the HDD POWER switch inside the front lid of the
unit, or by the operation on the HDD SAFETY MENU
of the digital disk recorder.
eOperate indicator [OPERATE]
Lights green when turning on the power switch on the
rear panel.
rHDD access indicators [HDD 1] [HDD 2] [HDD 3]
[HDD 4]
Each indicator lights to indicate the status of the
respective HDD.
Green: Indicates that the respective HDD is running
normally.
Red: Indicates that the respective HDD is the first faulty
drive among the HDDs in the unit.
Red blink: Indicates that the respective HDD is the
second or subsequent faulty drive among the HDDs
in the unit.
Orange-red alternate blink/Orange: Indicates that the
respective drive is currently being recovered in
RAID level 5 mode.
These indicators normally show the status of the
respective drive, but they work as a set when a system
error occurs. Refer to Troubleshooting for further infor-
mation.
Important
When one of the indicators lights red, replace the
respective HDD immediately. If two or more indicators
light/blink red, it will be impossible to recover data.
There may be cases where it is eventually impossible to
recover data if two drives are coincidentally damaged
or the second drive fails during the data recovery
process.
tFront cover
Detach the front cover when it is necessary to install
HDDs or to operate the switches inside the unit.
ERROR
HDD 1 HDD 2 HDD 3 HDD 4
HDD
POWER
OPERATE
Extension Unit
WJ-HDE
qwe r t

7
POWER
AC IN
SIGNAL GND
12
IN OUT
EXT
yu i io
!0
!1
!2
●Rear View
ySerial in connector [IN]
Connect the WJ-HD300 series digital disk recorder or
other extension unit with the supplied serial cable.
uSerial out connector [OUT1] [OUT2]
Connect another extension unit with the supplied serial
cable.
iCooling fan
oSignal GND terminal [SIGNAL GND]
Connect this terminal if required, to the SIGNAL GND
terminal of other equipment to avoid a possible ground-
ing loop and noise.
!0 Power switch [POWER]
Turn on the power of the unit with this switch before
turning on the power of the digital disk recorder, or turn
them on simultaneously. Otherwise, the HDDs will not
be mounted.
When turning off the power of the unit with this switch,
turn off the power of the digital disk recorder first, and
then turn off the power of this unit after confirming that
all HDD access indicators are not lit or blinking.
!1 AC inlet [AC IN]
Connect the supplied power cord.
!2 Cable clamp

8
!3
!4
!5
!6
SINGLE RAID5
MODE
RESET
HDD POWER
RECOVER
OFF ON
w’
e’
q’
● Inside the Front Lid
q'Error indicators
Functions the same as on the front panel.
Red: System error
Orange: Thermal error or malfunction of the cooling fan.
w'HDD power indicator
Functions the same as on the front panel.
ON: Indicates that HDDs are powered.
OFF: Indicates that the HDDs are not powered.
e'Operate indicator
Functions the same as on the front panel.
Lights green when turning on the power switch on the
rear panel.
!3 Reset button [RESET]
This button is located inside the unit. To access this
button, it is necessary to detach the front cover. Press
this button using a small screw driver (not supplied).
•When SINGLE is selected
After adding or replacing any of the HDDs, press this
button only. Refer to Setup Procedures for details.
•When RAID 5 is selected
This button is used in combination with the RECOVER
button and MODE switch after adding or replacing any
of the HDDs. Refer to Setup Procedures for details.
Important
Do not press the RESET button and the RECOVER
button simultaneously when SINGLE is selected.
Otherwise, the setting of the digital disk recorder
may be initialized and it may cause a malfunction.
!4 Mode switch [MODE]
RAID 5: Applies RAID level 5 mode (striping at the byte
level also stripe error correction information).
SINGLE: Applies SINGLE mode (no striping across dri-
ves for data or error correction information). Default
position
Important
•Changing the MODE switch will not be accepted when
the ERROR indicator lights red and/or when HDD 1-4
indicate a system error status by lighting red and
orange. When this happens, ask your dealer to solve
the error.
•When set to RAID5, the HDD preinstalled in the digital
disk recorder will not work. Instead, it is applied only to
the HDDs installed in the extension unit and the digital
disk recorder will perform storage and readout of the
image data by accessing the extension unit.
•The MODE switches of all extension units in a system
should be set to the same position, SINGLE or RAID5.
Otherwise, the system will malfunction.
•The available disk space of the unit can be logically
calculated as follows. The actual space may be several
percent lower than you calculated depending on the
HDD type used and their combination. The most effi-
cient way is to use the same type drives.
When SINGLE is selected, it will be the sum of all
the HDD sizes.
When RAID 5 is selected, it will be as follows.
When 3 HDDs are in the unit: It will be double the
size of the smallest HDD size.
When 4 HDDs are in the unit: It will be triple the size
of the smallest HDD size.
For example, if 4 HDDs of 80 GB, 120 GB, and two
160 GB are mounted, the available disk space will
be 80 G x 3 = 240 GB.
!5 HDD power switch [HDD POWER]
Use this switch in the ON position for normal operation.
ON: Supplies the power to the HDDs and the HDD
power indicators will light. Default position
OFF: Does not supply the power and the HDD power
indicators will go out.
!6 Recover button [RECOVER]
Use this button with the RESET button after replacing
the HDDs used in the RAID 5 mode to start data recov-
ery.
Refer to page 12 for details.

9
■Replacing/Mounting HDDs
Up to four HDDs (locally procured) can be installed in an
extension unit.
Important
•Type of hard disk drive
Consult your dealer about hard disk drives. Use only
hard disk drives compatible with the extension unit. If
unauthorized hard disk drives are used, it may cause a
system error.
It is recommended that the same type drives having the
same capacity should be installed in the extension units
to maximize the usable capacity.
•The HDDs should be installed in the proper positions in
the order as shown above. Do not skip or reverse the
order of the HDD positions. Otherwise, the recorder will
not recognize the extension unit or wrongly mounted
drives.
•The MODE switches of all units in a system should be
set to the same position, SINGLE or RAID5. When
mixed, it will cause a system error. See Troubleshooting
for details.
•When applying the RAID5 mode, it requires a minimum
of 3 drives per unit. When only two drives are mounted
in position #1 and #2, the ERROR indicator will be lit
red, HDD3 indicator will be lit red, and HDD4 indicator
will blink red.
•When applying the RAID5 mode, the digital disk
recorder will not access the HDD preinstalled in it, but
will access only the HDDs in the extension unit.
•Do not change the installed positions after the system
has been operated. Otherwise, data readout will not be
performed
•The replaced/added HDDs will be formatted.
SINGLE mode: Only the replaced/added HDD will be
formatted. For example, when the HDD
4 of the extension unit 2 is replaced,
only the HDD4 of the extension unit 2
will be formatted.
RAID 5 mode: All the HDDs of the extension units will
be formatted when a new HDD is
added or a preinstalled HDD is
removed. For example, when the HDD
4 of the extension unit 2 is added, all
the HDDs of the extension unit 2 will be
formatted.
●Procedures
1. HDD power-off procedures
Perform either of the following procedures depending
on the installation situations to stop the HDD motors.
Case 1: When the rear of the units is accessible, turn off
the power switches of the digital disk recorder
first, and turn off extension units.
Case 2: When the rear of the units is inaccessible, for
example when mounted in a rack, open the
SETUP MENU of the digital disk recorder and set
the HDD SAFETY MODE to ON. The extension
units will turn to the HDD power-off mode.
Refer to Setup Procedures of this manual and the
Operating Instructions included with the digital
disk recorder for details .
2. Detach the front cover and the front panel.
2-1 Remove the two screws.
HDD 2
HDD 1
HDD 4
HDD 3
POWER
2 - 1

10
2-2 Slide the front cover to the left.
2-3 Pull the front cover toward you.
2-4 Disconnect the harness.
2-5 Remove the six screws (marked with ∆) and detach
the thin metal plate covering the front side.
2-6 Disconnect the cables when adding or replacing
the HDD.
3. Remove two of the HDD mounting brackets.
•Remove the four screws and pull the brackets toward
you.
•When replacing an HDD, remove it from the bracket.
4. Prepare the HDDs to be fixed on the brackets.
•Release the static electricity from your body before
touching the HDDs.
•Put the conductive bag (in which the HDD was packed)
on a soft surface and place the HDD on it with the cir-
cuit board side down.
5. Fix the HDDs on the brackets.
5-1 Slide the HDD onto the bracket.
5-2 Tighten the four screws (supplied) to fix the HDD on
the bracket.
5-3 Repeat above steps to fix all the HDDs on the
bracket.
Do not use an electric screwdriver to fix them.
Recommended tightening torque = 0.49 N · m
{5 kgf·cm}
6. Set all the HDDs as master using the jumper connector.
Note: This setting is subject to change without notice.
Refer to the diagram attached on the HDD or the
operating instructions of the HDD for the jumper
connector assignment.
2 - 4
2 -5
2 - 6
2 - 2
2 - 3
2 - 3

11
7. Place the brackets with the fixed HDDs into the unit and
fix them using the four screws removed in step 3.
•Do not use an electric screwdriver to fix them.
Recommended tightening torque = 0.784 N · m
{8 kgf·cm}
8. Connect the cables.
9. Attach the metal plate removed in step 2 with the six
screws (marked with ∆) previously removed.
10 .Connect the detached harness as it was.
11 .Attach the front cover as it was.
11-1 Align the left edges of both the front cover and the
unit, and then push the front cover onto the unit.
11-2 Slide the front cover to the right.
Note: The front cover may be attached and detached
as necessary in the next step of Setup Procedures.
Be careful not to damage the harness.
12 .Mount the unit referring to Mounting in a Rack.
13 .Connect the unit referring to Connections.
14 .Set up the unit referring to Setup Procedures.
15 .Attach the front cover as it was.
15-1 Align the left edges of both the front cover and the
unit, and then push the front cover onto the unit.
15-2 Slide the front cover to the right.
15-3 Tighten the two screws.

12
■Mounting in a Rack
●Unit Layout
Note: Be sure to make a space of 1 U (44 mm) between the
units for ventilation in a rack.
12
12
12
12
12
12
12
IN OUT
IN OUT
IN OUT
IN OUT
IN OUT
IN OUT
IN OUT
WJ-HDE300
Unit #1
WJ-HDE300
Unit #2
WJ-HDE300
Unit #3
WJ-HDE300
Unit #4
WJ-HDE300
Unit #5
WJ-HDE300
Unit #6
WJ-HDE300
Unit #7
Digital Disk
Recorder
2U
1U Space
2U
1U Space
2U
1U Space
2U
1U Space
2U
1U Space
2U
1U Space
2U
1U Space
2U
Serial cable (1 m, supplied)
COPY1
EXTSTORAGE
Digital Disk Recorder
WJ-HDE300 #1
WJ-HDE300 #2
WJ-HDE300 #4
WJ-HDE300 #3
WJ-HDE300 #5 WJ-HDE300 #7
WJ-HDE300 #6
Layer1
Layer2
Layer3
Layer4
EXT STORAGE
IN
IN
IN
IN
IN
IN
IN
OUT1
OUT2
OUT1
OUT2 OUT1
OUT2
Unit Layout & Wiring Connection Diagram

13
●How to Mount
1. Turn off the power of the unit and detach the plug from
the outlet.
When not turning off the power, open the front cover
and turn off the HDD POWER switch.
2. Remove the six rubber feet by removing the six screws
from the bottom of the unit
3. Fix the Rack Mounting Brackets (supplied) on both
sides of the unit with the four screws (M4X10, supplied).
4. Install the unit in the rack securing it with four screws
(M5x12, not supplied).
5. Turn on the power of the unit.
When the HDD POWER switch is turned off, turn it on
and attach the front cover as it was.
Cautions:
•Make a space of 1U (44 mm) between the units for ven-
tilation, and install them in the rack as low as possible.
•Keep the temperature in a rack below 45 °C (113 °F).
•Install a fan in the rack when the ambient temperature is
above 30 °C (86 °F).
•Do not block the ventilation openings or slots on the
cover to prevent the unit from overheating.
Remove 6 screws
M4X10 (Supplied)
Rack Mounting Bracket (Supplied)
M5X12 (Not supplied)

14
IN
OUT
CASCAKE
OUT
16
16
4
15
15
14
14
13
2
1
13
12
12
11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
CAMERA
AUDIO IN AUDIOOUT
MONITOR OUT CASCADE IN MONITOR (VGA) ALARM/CONTOROL
SERIAL ALARM
POWER
COPY
MODE
EXIT STORAGE10/100BASE-TRS-485(CAMERA) PSÆDATA
AC IN
SIGNALGND
1
3 2
POWER
AC IN
SIGNALGND
12
IN OUT
EXT
POWER
AC IN
SIGNALGND
12
IN OUT
EXT
POWER
AC IN
SIGNALGND
12
IN OUT
EXT
POWER
AC IN
SIGNALGND
12
IN OUT
EXT
IN
POWER
AC IN
SIGNALGND
12
OUT
EXT
Digital Disk Recorder
WJ-HDE300 #1
WJ-HDE300 #2
WJ-HDE300 #5
WJ-HDE300 #4
WJ-HDE300 #3
WJ-HDE300 #6 WJ-HDE300 #7
EXT STORAGE
IN
IN IN
IN IN IN IN
OUT1
OUT2
POWER
AC IN
SIGNALGND
12
IN OUT
EXT
POWER
AC IN
SIGNALGND
12
IN OUT
EXT
OUT1
OUT2 OUT1
OUT2
Cable clamp
Screw for the
cable clamp
12
IN OUT
EXT
Cable Clamp
Fixing screw
2
2
1
1
COPY
EXIT STORAGE
10/100BASE-T
Remove this screw from
the unit and fix the cables
with the cable clamp
How to fix the cable clamp
How to fix the cables
●Procedures
1. Connect the EXT STORAGE port of the recorder and
the IN port of extension unit #1 using the supplied serial
cable.
2. Connect the OUT port of unit #1 and the IN port of unit
#2 using the supplied serial cable.
3. Repeat connections in the same way for the remaining
units.
4. Confirm the cable layout after connections.
5. Secure the cables using the clamp (supplied) and fix it
to the rear of the units.
■Connections
You can connect up to seven extension units with the digital
disk recorder (the WJ-HD316A/WJ-HD309A series) as
shown below using the supplied serial cables. Important
•Never use extension cables (locally procured). Be sure
to use the supplied serial cables for connection.
•Physical connections determine the unit number in a
system for each unit. Connect units with the recorder in
numeric order as shown in the figure. For example, con-
nect the sixth and seventh units to the third unit when
five units have been already installed.
•Do not change connections after the system has run.
Otherwise, the recorder will no longer recognize the
extension units as before. You can change connections
only when you can discard all existing data stored in
the units.
•If turning off the power of a unit, none of the connected
following units will work because of interrupted data
transmission.
Note: When the system is connected in a different way from
the figure, a unit number check can be performed on
the HDD SAFETY MODE of the digital disk recorder.
Refer to Setup Procedures.

15
●Basic Setup
Setup to the SINGLE mode
Perform the following to set up the unit to the SINGLE mode
for the first time.
1Power OFF
Confirm that the power of the recorder and the exten-
sion units are turned off.
2SINGLE
Set the MODE switch inside the front lid of the extension
unit to SINGLE.
3Turn on the power switch of the extension units.
4Turn on the power switch of the recorder.
→The recorder will start.
5HDD SAFETY MODE OFF
"HDD SAFETY MODE" menu will open after completing
the system check. Select OFF on the menu and press
the SET button on the recorder’s front panel.
→The recorder will restart.
Notes:
•It will take about 3 or 5 minutes to complete the sys-
tem check.
•When the system has been already run, "HDD
SAFETY MODE" menu will not appear. Skip to step
6.
6HDD DISK MENU will appear when the system check is
completed.
Perform formatting on the menu.
Refer to "
■ Formatting the Hard Disk" of the operating
instructions of the recorder.
■Setup Procedures
The following pages describe procedures on how to set up or change the disk mode, how to recover data in RAID5, or
how to check the unit number using the HDD SAFETY MODE.
Notes:
•Refer to the operating instructions of the digital disk recorder WJ-HD316A/WJ-HD309A series for setup menu opera-
tions.
•The MODE switches of all units in a system should be set
to the same position, SINGLE or RAID5.
•The HDDs should be installed in the proper positions in the
order as shown in the figure. Do not skip or reverse the
order of the HDD positions. Otherwise, the recorder will not
recognize the extension unit.
•Do not change HDD positions of the extension unit after once the system has been operated. Otherwise, it will be
impossible to read the recorded data.
•The power-on order should be the extension units first and then the recorder. The power-off order should be the
recorder first and then the units.
•At least, three hard disk drives per extension unit are needed to run it in the RAID5 mode.
Digital Disk Recorder
WJ-HD300A
HDD DISK MENU
TOP MENU
FORMAT MIRROR ON REMOVE LINK RESTART EXIT MIRROR OFF
Information of recording areas : [SETUP/ESC] OK : [SET]
160GB
160GB
160GB
160GB
*(160GB)
ADD (160GB)
160GB
LOST
MAIN
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
160GB
160GB
160GB
160GB
*(ERROR)
ADD (ERROR)
160GB
-
160GB
160GB
160GB
160GB
160GB
160GB
-
160GB
160GB
160GB
160GB
160GB
160GB
-
--
1234
SINGLE RAID5
MODE
SET
HDD 2
HDD 1
HDD 4
HDD 3
POWER

16
Setup to the RAID5 mode
Perform the following to set up the unit to the RAID5 mode
for the first time.
1Power OFF
Confirm that the power of the recorder and the exten-
sion units are turned off.
2RAID5
Set the MODE switch inside the front lid of the extension
unit to RAID5.
3Turn on the power switch of the extension units.
4Turn on the power switch of the recorder.
→The recorder will start.
5HDD SAFETY MODE OFF
"HDD SAFETY MODE" menu will open after completing
the system check. Select OFF on the menu and press
the SET button on the recorder’s front panel.
→The recorder will restart.
Notes:
•It will take about 3 or 5 minutes to complete the sys-
tem check.
•When the system has been already run, "HDD
SAFETY MODE" menu will not appear. Skip to step
6.
6HDD DISK MENU will appear when the system check is
completed.
Perform formatting on the menu.
Refer to "
■ Formatting the Hard Disk" of the operating
instructions of the recorder.
SINGLE RAID5
MODE
Digital Disk Recorder
WJ-HD300A
HDD DISK MENU
TOP MENU THE CANDIDATE FOR A FORMAT
RETURN: [SETUP/ESC] OK : [SET]
ALL UNIT ONE UNIT
-
480GB
480GB
480GB
*(480GB)
ADD (480GB)
480GB
LOST
MAIN
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
SET
POWER

17
Formatting (Initialization) the hard disk
It is necessary to initialize the hard disk in the following
cases.
When replacing or adding the hard disk
When operating the unit for the first time
When having changed the hard disk mode between
SINGLE and RAID5
Note: It is unnecessary to initialize the hard disk when
recovery is to be executed in the RAID5 mode.
Important:
When the hard disk is formatted (initialized), all of the
recorded images will be deleted.
1Power up
•Turn on the power switches of the extension units
first. Then turn on the power switch of the digital
disk recorder.
Note: When the hard disk is replaced or removed,
the "TOP MENU" of the "HDD DISK MENU" will
be automatically displayed.
•Press the SET button on the front panel of the
recorder when a message " System check is com-
pleted" is displayed.
→The "TOP MENU" of the "HDD DISK MENU" will
be displayed.
2Move the cursor to "FORMAT" and press the SET but-
ton.
→The password entry window will be displayed.
3Password entry
•Enter the password for an administrator by rotating
the jog dial. Camera selection buttons are available
to enter numbers for password.
•Move the cursor to "EXECUTE" and press the SET
button.
4Mode selection
●Initializing all hard disk (unit)
•Select "ALL FORMAT" for the SINGLE mode or "ALL
UNIT" for the RAID5 mode and press the SET but-
ton.
→The "RECORDING AREA SETUP OF ALL DISKS"
will be displayed.
Digital Disk Recorder
WJ-HD300A
HDD DISK MENU
TOP MENU
FORMAT MIRROR ON REMOVE LINK RESTART EXIT MIRROR OFF
Information of recording areas : [SETUP/ESC] OK : [SET]
160GB
160GB
160GB
160GB
*(160GB)
ADD (160GB)
160GB
LOST
MAIN
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
160GB
160GB
160GB
160GB
*(ERROR)
ADD (ERROR)
160GB
-
160GB
160GB
160GB
160GB
160GB
160GB
-
160GB
160GB
160GB
160GB
160GB
160GB
-
--
1234
SET
SET
Digital Disk Recorder
WJ-HD300A
HDD DISK MENU
TOP MENU
FORMAT MIRROR ON REMOVE LINK RESTART EXIT MIRROR OFF
160GB M
160GB
160GB
160GB
*(160GB)
ADD (160GB)
160GB
LOST
MAIN
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
160GB M
160GB
160GB
160GB
*(ERROR)
ADD (ERROR)
160GB
-
160GB
160GB
160GB
160GB
160GB
160GB
-
160GB
160GB
160GB
160GB
160GB
160GB
-
1234
Information of recording areas : [SETUP/ESC] OK : [SET]
Enter the password.
EXECUTE
CANCEL
Digital Disk Recorder
WJ-HD300A
HDD DISK MENU
TOP MENU THE CANDIDATE FOR A FORMAT
ALL FORMAT SELECTED DISC MIRROR FORMAT
RETURN: [SETUP/ESC] OK : [SET]
160GB
160GB
160GB
160GB
*(160GB)
ADD (160GB)
160GB
LOST
MAIN
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
160GB
160GB
160GB
160GB
*(ERROR)
ADD (ERROR)
160GB
-
160GB
160GB
160GB
160GB
160GB
160GB
-
160GB
160GB
160GB
160GB
160GB
160GB
-
1234
Digital Disk Recorder
WJ-HD300A
HDD DISK MENU
TOP MENU THE CANDIDATE FOR A FORMAT
RETURN: [SETUP/ESC] OK : [SET]
ALL UNIT ONE UNIT
-
480GB
480GB
480GB
*(480GB)
ADD (480GB)
480GB
LOST
MAIN
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
SINGLE mode
RAID5 mode

18
●Initializing selected hard disk (the selected unit
when using the RAID5 mode)
•Select "SELECTED DISK" for the SINGLE mode or "ONE
UNIT" for the RAID5 mode and press the SET button.
→The "DISK SELECT" menu for the SINGLE mode or
the "UNIT SELECTION" menu for the RAID5 mode
will be displayed.
•Select the desired hard disk (or unit) and press the SET
button.
→The "SETTING METHOD" menu will be displayed.
•Select a setting method by moving the cursor and
press the SET button.
→The confirmation menu of the recording area will be
displayed.
5Area selection
•Select the desired recording area to be initialized
by moving the cursor and specify the capacity by
rotating the jog dial. Repeat this to assign two or
more areas.
•Confirm the capacities of the set recording areas
and press the SET button.
→The confirmation dialog window will be dis-
played.
6Execute
•Select "EXECUTE" and press the SET button.
→The window will return to the TOP after complet-
ing the formatting.
Digital Disk Recorder
WJ-HD300A
HDD DISK MENU
THE CANDIDATE FOR A FORMAT DISK SELECT
RETURN: [SETUP/ESC] OK : [SET]
160GB
160GB
160GB
160GB
*(160GB)
ADD (160GB)
160GB
LOST
MAIN
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
160GB
160GB
160GB
160GB
*(ERROR)
ADD (ERROR)
160GB
-
160GB
160GB
160GB
160GB
160GB
160GB
-
160GB
160GB
160GB
160GB
160GB
160GB
-
1234
Select HDD to be formatted,and press [SET]key.
Digital Disk Recorder
WJ-HD300A
HDD DISK MENU
THE CANDIDATE FOR A FORMAT UNIT SELECTION
RETURN: [SETUP/ESC] OK : [SET]
Select HDD to be formatted,and press [SET] key.
-
480GB
480GB
480GB
*(480GB)
ADD (480GB)
480GB
LOST
MAIN
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
SINGLE mode
RAID5 mode
Auto Setup All Copy Area All Pre REC Area Detailed Setup
Digital Disk Recorder
WJ-HD300A
HDD DISK MENU
DISK SELECT THE SETTING METHOD
RETURN: [SETUP/ESC] OK : [SET]
160GB
160GB
160GB
160GB
*(160GB)
ADD (160GB)
160GB
LOST
MAIN
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
160GB
160GB
160GB
160GB
*(ERROR)
ADD (ERROR)
160GB
-
160GB
160GB
160GB
160GB
160GB
160GB
-
160GB
160GB
160GB
160GB
160GB
160GB
-
1234
Auto Setup All Copy Area All Pre REC Area Detailed Setup
Digital Disk Recorder
WJ-HD300A
HDD DISK MENU
DISK SELECT THE SETTING METHOD
RETURN: [SETUP/ESC] OK : [SET]
480GB
480GB
*(480GB)
ADD (480GB)
480GB
LOST
MAIN
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
-
480GB
SINGLE mode
RAID5 mode
Digital Disk Recorder
WJ-HD300A
HDD DISK MENU
THE CANDIDATE FOR A FORMAT RECORDING AREA SETUP OF ALL DISK
RETURN: [SETUP/ESC] OK : [SET]
HDD Total capacity : 2790GB
Normal area Event area
90GB 1800GB
Copy area
450GB
Free area
450GB
Digital Disk Recorder
WJ-HD300A
HDD DISK MENU
THE CANDIDATE FOR A FORMAT RECORDING AREA SETUP OF ALL DISK
RETURN: [SETUP/ESC] OK : [SET]
HDD Total capacity : 2790GB
Normal area Event area
90GB 1800GB
Copy area
450GB
Free area
450GB
EXECUTE CANCEL
Starting format of all HDDs,
and all of data in HDDs
are going to be erased.

19
●Changing Setups
Changing the total number of HDD in
RAID5
Do the following when the total number of the hard
disks in the extension unit is increased (3 to 4) or
reduced (4 to 3) after the system has been operated.
Important:
•The MODE switches of all extension units in a system
should be set to the same position, SINGLE or RAID5.
Otherwise, the system will malfunction.
•At least three hard disk drives per extension unit are
needed to run it in the RAID5 mode.
•When the total number of the hard disks in an extension
unit is increased or reduced, all data previously stored
in the unit will be erased.
1SAFETY MODE ON
Select ON for "HDD Safety Mode" and close the SETUP
MENU.
→The recorder will restart and the HDD SAFETY MODE
window will be displayed.
2Install/uninstall the hard disk
•Confirm that the HDD POWER indicator on the front
panel of the extension unit went out.
•Install or uninstall the hard disk referring to ■
Replacing/Mounting HDD.
•Go to the next step below after finishing the con-
nection of the front cover harness with the unit while
the switches and buttons remain operable (step 11
of ■Replacing/Mounting HDD).
3Initializing the unit
1Set the MODE switch to SINGLE.
2While holding down the RECOVER but-
ton, press the RESET button.
3While holding down the RECOVER button, release
the RESET button about 1 second later.
4Release the RECOVER button after the HDD
POWER indicator turns on (5 seconds later).
5Repeat the above steps when initializing two or
more units.
4Set the MODE switch back to RAID5.
5SAFETY MODE OFF
•Select OFF on the HDD SAFETY MODE window and
press the SET button.
→The recorder will restart and the HDD
DISK MENU will be displayed after the
system check is completed (3 - 5 min-
utes later).
•Perform the formatting of the changed extension unit.
SETUP MENU
Event Schedule
Display Comm Switcher
LIVE
Recording
System
Maintenance
REC Rate
Disk Info
Version Info
Disk End Mode
Disk Capacity
Date Delete
Event Log
Error Log
Access Log
Quick Menu
MAIN 160
GB 160 GB
15000h 15000h
EXT1 160
GB 160 GB
15000h 15000h
EXT2 160
GB 160 GB
15000h 15000h
EXT3 160
GB 160 GB
15000h 15000h
EXT4 160
GB 160 GB
15000h 15000h
EXT5 160
GB 160 GB
15000h 15000h
EXT6 160
GB 160 GB
15000h 15000h
EXT7
■Warning for Disk Life Time
■HDD Safety Mode
160 GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
Normal REC Area
Event REC Area
Copy Area
COPY 1 (Rear)
COPY 2 (Front)
3000h
OFF
Remaining
1234
1800GB
1200GB
1000GB
1000GB
1000GB
Advanced
Digital Disk Recorder
WJ-HD300A
HDD DISK MENU
TOP MENU THE CANDIDATE FOR A FORMAT
RETURN: [SETUP/ESC] OK : [SET]
ALL UNIT ONE UNIT
-
480GB
480GB
480GB
*(480GB)
ADD (480GB)
480GB
LOST
MAIN
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
SINGLE RAID5
MODE
RESET
HDD POWER
RECOVER
OFF ON
Press Release
Hold Release
2
4
3
2
HDD
POWER
ERROR
OPERATE
SINGLE RAID5
MODE
SINGLE RAID5
MODE
HDD
POWER
HDD
POWER
SET

20
Changing hard disk mode
Do the following when the hard disk mode is changed
from SINGLE to RAID5 or vice versa after the system
has been operated.
Skip this section and perform settings in the same way
as "Setup to the SINGLE mode" or "Setup to the RAID5
mode" when the power switches of the recorder and
extension units are accessible.
Important:
•The MODE switches of all extension units in a system
should be set to the same position, SINGLE or RAID5.
Otherwise, the system will malfunction.
•At least, three hard disk drives per extension unit are
needed to run it in the RAID5 mode.
•When the hard disk mode of the extension unit is
changed, all data previously stored in the unit will be
erased.
1SAFETY MODE ON
Select ON for "HDD Safety Mode" and close the SETUP
MENU.
→The recorder will restart and the HDD SAFETY MODE
window will be displayed.
2Change the mode
•Confirm that the HDD POWER indicator on the front
panel of the extension unit went out.
•Change the MODE switch on the unit to SINGLE or
RAID5. The default position is SINGLE.
•Press the RESET button.
3SAFETY MODE OFF
•Select OFF on the HDD SAFETY MODE menu and
press the SET button.
→The recorder will restart and the HDD DISK
MENU will be displayed after the system check
is completed (3 - 5 minutes).
•Perform the formatting of the changed extension
unit.
SETUP MENU
Event Schedule
Display Comm Switcher
LIVE
Recording
System
Maintenance
REC Rate
Disk Info
Version Info
Disk End Mode
Disk Capacity
Date Delete
Event Log
Error Log
Access Log
Quick Menu
MAIN 160
GB 160 GB
15000h 15000h
EXT1 160
GB 160 GB
15000h 15000h
EXT2 160
GB 160 GB
15000h 15000h
EXT3 160
GB 160 GB
15000h 15000h
EXT4 160
GB 160 GB
15000h 15000h
EXT5 160
GB 160 GB
15000h 15000h
EXT6 160
GB 160 GB
15000h 15000h
EXT7
■Warning for Disk Life Time
■HDD Safety Mode
160 GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
160
GB 160 GB
15000h 15000h
Normal REC Area
Event REC Area
Copy Area
Copy 1(Rear)
Copy 2(Front)
30000h
ON
Remaining
1234
1800GB
1200GB
1000GB
1000GB
1000GB
Advanced
SINGLE RAID5
MODE
SINGLE RAID5
MODE
RESET
SET