Panasonic WJ-HDE300 User Manual
Extension Unit
Instructions
Model No. WJ-HDE300
Extension Unit
WJ-HDE
300
Before attempting to connect or operate this product,
please read these instructions carefully and save this manual for future use.
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.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
For Canada
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.
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.
The lightning flash with arrowhead symbol, within an equilateral triangle, is
intended to alert the user to the presence of uninsulated "dangerous voltage"
within the product's enclosure that may
SA 1965
be of sufficient magnitude to constitute a
risk of electric shock to persons.
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.
SA 1966
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 operational only when the ON-OFF
switch is in the ON position. The power
cord is the main power disconnect for all
units.
For U.S.A.
NOTE: This equipment has been tested and found to comply 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 environment. 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 computer or peripheral devices). Any changes or modifications
not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.
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.
2
■ 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.
S3125A
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.
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Contents
■ Important Safety Instructions .................................................................................................................. 3
■ General ................................................................................................................................................... 5
■ Precautions ............................................................................................................................................. 5
■ Appearance ............................................................................................................................................ 6
■ Replacing/Mounting HDDs ..................................................................................................................... 9
■ Connections ............................................................................................................................................ 14
■ Rack Mounting ........................................................................................................................................ 16
■ Troubleshooting ...................................................................................................................................... 18
■ Specifications ......................................................................................................................................... 19
■ Accessories ............................................................................................................................................ 19
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■ General
The extension unit WJ-HDE300 can contain up to four hard disk drives per unit to add available disk space to the digital disk
recorder WJ-HD316/WJ-HD309. 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 correction 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 to implement.
When using the RAID function, 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.
■ Precautions
• Do not operate the appliance beyond its specified temperature, humidity or power source ratings.
Do not use the appliance in an extreme environment
where 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.
• Avoid condensation on the surface of the HDD.
If this happened, do not turn on the power of the appliance 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 different 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 horizontally.
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■ Appearance
ERROR
HDD 1 HDD 2 HDD 3 HDD 4
HDD
POWER
OPERATE
Extension Unit
WJ-HDE
qwe r t
● Front View
q Error indicator [ERROR]
Lights when an error occurs. Refer to TROUBLESHOOTING for details.
Red: System error
Orange: Thermal error or malfunction of the cooling fan.
w HDD power indicator [HDD POWER]
ON:
Indicates that HDDs are powered.
OFF: Indicates that the HDDs are not powered.
Note: Do not move the unit until the motors of the HDDs
stop completely. To stop the motors, turn off the
HDD POWER switch behind the front cover. Move
the unit after confirming that the indicator has gone
out.
e Operate indicator [OPERATE]
Lights green when turning on the power switch on the
rear panel.
r HDD 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 indicate the status of the
respective drive, but they work as a set when a system
error occurs. Refer to Troubleshooting for further information.
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.
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t Front cover
Detach the front cover when it is necessary to install
HDDs or to operate the switches inside the unit.
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