Basic Operations, Updating System Software, Ntsc MUX on

3.4 Updating System Software

If the system software of the DVR needs to be upgraded, please contact your JVC dealer.

4. BASIC OPERATIONS

This section shows you how to operate and manage the DVR when it gets in the way.

4.1 Configuring Recording Settings

Recording Time settings (Recording Rate and Picture Quality Setting)

Recording time will vary depending on the image size, recording rate, and the capacity of the hard-disk drives. Generally, the DVR comes with a built-in hard-disk drive for continuous recording from one to four weeks under most recording conditions. The table below shows the possible recording times based on a 80GB hard-disk drive at certain refresh rates and the corresponding image quality. With one or more hard-disk drive(s) in operation, please calculate the recording time using the table below in accordance with your requirement. For a NTSC unit, for example, if the unit is set to record images with BEST quality at a 60 fps record rate, normally a 80GB hard-disk drive will be filled in 15 hours (See the gray area in the table). If the total capacity of 240GB hard-disk drives is in use under the same refresh rate and picture quality, it will be filled in 45 hours (3 times the rate of a 80GB hard-disk drive).

Set up the REC Time Mode when a multiplexer is connected

If a multiplexer is connected, for optimum image recording and playback, the record speed of the multiplexer must be correctly adjusted to match the DVR and set the MULTIPLEXER option on the setup menu to ON. This can be done by either of methods detailed below.

Connect the SW. OUT terminal in 9-PIN D-SUB connector on the rear panel of the DVR to the multiplexer’s trigger contact. The DVR will provide the timing signal (Negative/Falling) to the multiplexer. Thus, if the DVR changes the recording speed, the multiplexer will automatically adjust the record to match. A 2-hour and 4-hour timing signal in NTSC or a 3-hour and 6-hour one in PAL is constantly negative/falling.

NTSC (MUX ON)

Audio ON

Possible Recording Time HDD=80GB ( hour )

BEST

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ˇˇˁˇ

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˅˃ˋˁˈ

ˆˋ˃ˁˉ

ˈˌˋˁˈʳ

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Image

HIGH

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ˈˈˁˆ

˄˄ˋˁˋ

˅ˈˈˁˊ

ˇˈˌˁˉ

ˊ˃ˋˁˌʳ

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Quality

STANDARD

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ˊˆˁ˅

˄ˈˉˁ˄

ˆˆ˃ˁˈ

ˈˋ˃ˁ˃

ˋˉˌˁˈʳ

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BASIC

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˅˅ˊˁˉ

ˇˉˊˁˆ

ˊˋˈˁˌ

˄˄˅ˇˁ˃ʳ

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Refresh

Rate (Field/Sec)

5.5

2.4

1.22

0.71

1/4

1/6

1/8

REC Time Mode

2 hr

4 hr

6 hr

12 hr

24 hr

48 hr

96 hr

168 hr

480 hr

720 hr

960 hr