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  3. WJ-ND400
WJ-ND400

Panasonic WJ-ND400 Handling Guide

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Notes on handling HDD
Be aware of the following at HDD installation and recovery:
The network disk recorder, WJ-ND400, is described as ND400 and the extension unit, WJ-HDE400, as
HDE400.
<Notes for HDD installation>
If an HDD unit is added during the operation described below, the ND400 and HDE400 do not recognize the
HDD unit to be added.
• ProcessofHDDrecognition
• ProcessofHDDremoval
• ProcessoflogginginthecongurationusingtheWebbrowser
• ProcessofmeasurementusingtheWebbrowser
Solution
RemovetheunrecognizedHDDunitonce,andinstalltheHDDunitagainaftercompletionoftheoperation
describedabove.Wheninstalling2ormoreHDDunits,performHDDrecognitionunitbyunit.
<Notes for RAID5/RAID6 recovery>
NeverturnoffthepowerduringtheRAID5/RAID6recovery.Failuretoobservethismayfailtoretrievethe
data.
The following cases obstruct the start of RAID5/RAID6 recovery.
• CasethatthefailedHDDunitisreplacedinthepower-offstateandthenthepowerofthisunitisturned
on
• Casethat2HDDunits arereplacedandthenthe powerofthisunitistoggledonandoffduringthe
recovery of one HDD unit when 2 HDD units in the RAID6 fail
In this case, the recovery of one HDD unit will start, but the recovery of the other HDD unit will not start.
Solution
RemovetheHDDunittherecoveryofwhichwillnotstart,andinstalltheHDDunitagain.
Notes on using audio and VMD search
TouseaudioandVMDsearch,thetotalnumberofrecordingcameraspluschannelsforaudiopluschannels
for VMD search shall be 64 or less.
Numberofrecordingcameras+numberofchannelsforaudio+numberofchannelsforVMDsearch≤64
Failuretoobservethismaycauseunrecordedimagesthatshouldberecorded,undisplayedliveimagesthat
should be displayed, unissuedalarmsthatshouldbeissued, depressedoperationalresponse, restartof
ND400, etc.
Reference values for settings are indicated below.
ReferencevaluesatM-JPEGforcompressionmethodand48KBforimagesize
Numberof
cameras
Liveimage
transmissionrate
(ips)
Recording rate
(ips)
Numberof
channels for audio
use
Numberof
channels for VMD
search use
NumberofPCs
64 5 5 0 0 4
48 5 5 0 16 4
48 5 5 16 0 4
32 5 5 16 16 4
ReferencevaluesatMPEG4forcompressionmethodand2Mbpsforbitrate,refreshinterval:1sec.
Numberof
cameras
Liveimage
transmissionrate
Recording rate
Numberof
channels for audio
use
Numberof
channels for VMD
search use
NumberofPCs
64 ALL ALL 0 0 4
48 ALL ALL 0 16 4
48 ALL ALL 16 0 4
32 ALL ALL 16 16 4
*Measuredvaluesshallbeusedat128Mbpsorlessofthebitrate.(RefertotheSetupInstructions(PDF))
*ThesettingforPCisdescribedatthecaseof4-screendisplay.Thetotalrateofrecording,playing,andlive
imagetransmissionshallbe200Mbpsorless.
*RefertotheoperatinginstructionsofthecameraforhowtosettheVMDsearch.
Notes on network connection
ToconnectbetweenND400andPCsorbetweenND400andcameras,useagigabit-readyHUB.
Failuretoobservethis maycause unrecordedimagesthatshouldberecorded,undisplayedlive images
thatshouldbedisplayed,unissuedalarmsthatshouldbeissued,etc.resultingincollapsedliveimagesor
playbackimages.
3TU001961ADA
Nd0811-0
Printed in China
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