Introduction
Hard Disk Drive

The distance between the head and disk that read and write data on the hard disk drive (hereinafter known as the HDD) is a miniscule 0.02µm. Vibrations and physical shocks to the HDD may therefore result in the head coming into contact with the disk, producing dents and scratches to its surface. This will consequently prevent data from being read, and will result in disk crashes if use is continued. It is therefore necessary to handle the recorder with great care.

■Installation and Changing the Location of Installation

•Do not move the recorder or commence the installation process when the power is turned on or immediately after the power has been switched off (for approximately one minute) under any circumstances. (The HDD will continue to rotate due to inertia for a few moments after the power has been switched off, and vibrations or physical shocks will result in damage.)

•Wrap the recorder in protecting packing to prevent physical shocks.■Handling•Handle this equipment with care. Do not subject it to physical shock.

•Do not unplug the power cord during recording or playback, or when the HDD is being accessed.

■It is recommended that an UPS (Uninterruptible Power Supply) is used when installing additional external hard disk drives to make sure the system remains stable.

■If a power failure occurs while using utilities, operation of the equipment may be disabled even if it is connected to the UPS.

■Please note that we will not provide compensation for any failure during recording or playback due to defects in this equipment or the hard disk drive.

■Please note that recorded images will be erased when replacing hard disks. Note that there are cases where recorded images may be erased when software is upgraded.

■Use only hard disks recommended by JVC and use only our service to replace hard disks.

Consumable Item

■The hard disk is a consumable item. Replacement is recommended after 10000 hours of use (if use in a 25°C environment). For information on maintenance planning and costs, consult your nearest JVC dealer.

■The fan motor is a consumable item. Replacement is recommended after 30000 hours of use (if use in a 25°C environment). For information on maintenance planning and costs, consult your nearest JVC dealer.

How to Read The Instructions

■About the VR-N900U documentThe two documents shown below are available.(1)STARTUP GUIDE

A STARTUP GUIDE booklet is bundled with VR- N900U. Also, a STARTUP GUIDE is available as a PDF file which is on the CD-ROM.

(2)INSTRUCTIONS (This PDF)The INSTRUCTIONS is available as a PDF file which is on the CD-ROM.■How to Read the SymbolsCAUTION Indicates points to note when operating the recorder.Note Indicates useful information, such as features and restrictions on use.☞Indicates a reference page or reference item.■Contents of this Manual

●The contents of this manual are the copyright of JVC. They may not be reproduced in part or in whole without the permission of JVC.

●All product names stated in this manual are trademarks or registered trademarks of their respective companies. Marks such as ™, ® and © are omitted in this manual.

●Milestone and XProtect Enterprise are registered trademarks of Milestone Systems.

●Designs, specifications and other contents of this manual are subject to change without prior notice.

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