Connection / Installation

Focus Assist Mode

The accuracy of focus adjustment is improved when the iris of auto iris lens is open.

[MONITOR OUT] Switch

[STATUS] Indicator

1.Set the [MONITOR OUT] selection switch to NTSC or PAL

2. Press [RESET] button for less than 2 seconds to restart

3.Press the [RESET] button for 2 seconds or longer, and release within 5 seconds

Doing so switches to the Focus Assist mode.

●[STATUS] indicator alternates lighting up in green color and orange color alternately.

●The central portion of the image is enlarged.

4.Shoot the object or a fine pattern that is farther away than the object

5.Adjust the lens focus

6.Set the [MONITOR OUT] selection switch to AOFFB

7.Press [RESET] button for less than 2 seconds to restart

●Focus assist mode is disabled.

●It takes about one minute for the camera to reboot.

●While rebooting, the [STATUS] indicator lights up in orange.

Memo:

●After focus adjustment, press [RESET] between 2 to 5 seconds to exit focus assist mode.

●You can also enable the Focus Assist mode on the viewer. (A Page 93)

Network Requirements

●Ensure that there is sufficient network bandwidth for the data volume to be sent out by VN-X35U. Do not send multicast stream that exceeds the bandwidth. If the entire bandwidth is used by the multicast stream, control of this camera via the network may fail.

●Data volume to be sent by VN-X35U varies with the settings and number of distributions.

●The maximum bit rate for transmission is about 20 Mbps.

Estimation of Total Bit Rate

The total JPEG bit rate from VN-X35U is determined by the VN-X35U settings, number of clients, and the client’s requested number of frames. The total MPEG4 bit rate from VN-X35U is determined by the number of distributions. Develop a design upon taking the above into consideration.

Bit Rate of JPEG Stream

The JPEG file size per frame varies with the encoding settings as well as input video signals. The following table shows typical sizes. When VFS is selected, the quantization table during JPEG encoding will be maintained, and the file size will increase/decrease according to the input signals. When AFS is selected, encoding will be performed such that the target file size is the average size of multiple JPEG images.

Image file size

Picture Quality

Quad

VGA File

QVGA

Control Method

VGA File

Size

File Size

 

 

 

Size

 

 

 

 

 

 

 

VFS

 

 

 

 

(Variable File Size)

(typical sizes)

 

 

 

 

 

 

 

1

(High)

180 KB

80 KB

27 KB

 

 

 

 

 

 

 

2

 

160 KB

60 KB

20 KB

 

 

 

 

 

 

 

3

 

140 KB

40 KB

13 KB

 

 

 

 

 

 

 

4

 

120 KB

30 KB

10 KB

 

(Medium)

 

 

 

 

 

 

 

 

 

 

5

 

100 KB

25 KB

8 KB

 

 

 

 

 

 

 

6

 

80 KB

20 KB

7 KB

 

 

 

 

 

 

 

7

(Low)

60 KB

15 KB

5 KB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Selectable

Selectabl

Selectabl

AFS

 

between

e between

e between

(Average File Size)

40 KB to

10 KB to

3 KB to

 

 

 

200 KB

100 KB

33 KB

 

 

 

 

 

 

 

 

 

 

 

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