NEC Visualink 128/384 User Guide

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VisuaLink 128/384 User Guide Chapter 8
8.7  Send a Snapshot
During a meeting, you may want to distribute copies of a diagram or pass around 
an illustration so that everyone can take a closer look at what you are discussing.  
You can do the same in a videoconference by sending a snapshot.  A snapshot is a 
picture like an electric photograph that you can send to the far-end.
8.7.1  Send a snapshot
¬
Press either the MAIN CAM
 or CAM 2
 button to view the image from the 
camera.
Á
Adjust the image using the CAMERA CONTROL
 and/or ZOOM
 button; 
keep doing this until the camera is showing the image exactly the way you 
want it.
Â
Press SEND
 button in the SNAPSHOT
 area.  The snapshot appears on the 
far-end screen and on your screen and whatever you were viewing at the far-
end appears in your PIP.  Whenever a snapshot appears, you also see the 
message STILL
 at the upper left corner of the screen.  This is your indication 
that a STILL
 is being shown in the monitor.
CAM 2
MAIN CAM
ZOOM
CAMERA
CONTROL
Irving
Sending a Snap Shot.
Local control:  Camera 2
SEND
RECEIVE 
						

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Chapter 8 VisuaLink 128/384 User Guide
8.7.2  Switch back to the far-site viewing
¬
Press the RECEIVE
 button.
8.7.3  Receive a snap shot picture
When a snap shot picture is received, the on-screen video freezes for a second and 
the video images automatically change to the snap shot picture.
Irving
Local control:  Camera 2
SEND
RECEIVE
Snap Shot Picture
Local control:  Camera 2 
						

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VisuaLink 128/384 User Guide Chapter 8
8.8   Camera Functions
During a videoconference, you might want to adjust your MAIN CAM
 or CAM 2
 
to zoom in or out on a person or persons to display something else in the picture.
8.8.1  Local Control
To move your MAIN
 camera.
¬
Select the MAIN CAM
 button.
Á
Press the ZOOM
 and/or CAMERA CONTROL
 button.
Keep adjusting these buttons until the camera displays the correct image.
CAMERA
Local control:  Camera 1
ZOOM
MAIN CAM
CONTROL 
						

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Chapter 8 VisuaLink 128/384 User Guide
8.8.2  Adjust the CAM 2
¬
Select the CAM 2 button.
Á
Press the  ZOOM
 and/or CAMERA CONTROL
 button.
Keep adjusting these buttons until the camera displays the correct image.
CAM 2
Local control:  Camera 2ZOOM
CAMERA
CONTROL 
						

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VisuaLink 128/384 User Guide Chapter 8
8.8.3  Far-End Control
Adjust far-end camera:
During a videoconference, you may want to move a far-end camera if, for example, 
you cannot see the person who is speaking or if you want to zoom out to see 
everyone in the room.
¬
Press the FAR END
 button.
The control switches to the remote control.
Á
Select the camera that you would like to control.
Â
Adjust the image using the ZOOM
 and/or CAMERA CONTROL
 button.
Keep adjusting these buttons until the camera displays the correct image.
FAR END
Irving
Remote control:  Camera 1
CAM 2
Remote control:  Camera 2
MAIN CAM
ZOOM
CAMERA
CONTROL 
						

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Chapter 8 VisuaLink 128/384 User Guide
8.9  Using Camera 
Preset Once you have set your camera presets, you simply press one of the number 
buttons on the hand held remote.  The camera then, moves to the preset position 
and the people at the far-end see that view.
8.9.1  Activate a stored camera preset
¬
Press NUMBER
 button (1 to 9).
Note 1:
The camera moves to a stored position, and the speaker’s name is 
displayed.  The speaker’s name is displayed not only at the local room but 
also on the monitor at the remote location.
Note 2:
Menu cannot be displayed while the preset is activated.
The display is deleted after a period of time.
NUMBER 
						

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VisuaLink 128/384 User Guide Chapter 8
8.10  Pointer Display
Pointer is used to highlight an area on the video monitor.  The pointer can be 
displayed on documents, diagrams and motion video.  The pointer is controlled on 
a  first come, first served bases.  Control can only be surrendered when the pointer 
button is released.
8.10.1  Display the pointer
¬
Press POINTER
 button.
Note:
A pointer is displayed on the monitor at the local and remote location.
POINTER 
						

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Chapter 8 VisuaLink 128/384 User Guide
8.10.2  Move the pointer
¬
Press CAMERA CONTROL
 button.
: operating side  : receiving side
The pointer moves to the direction pressed on the button.
Note 1:
The pointer on the monitor at the remote location also moves.
Note 2:
A camera cannot be controlled during a pointer display.
8.10.3  Delete the pointer
¬
Press POINTER
 button.
 The Pointer has disappeared from the local and remote monitors.
CAMERA
CONTROL
POINTER 
						

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VisuaLink 128/384 User Guide Chapter 9
Chapter 9  VisuaLink Troubleshooting Guide
The following table lists many common problems and likely causes and solutions.
Table 9-1: Troubleshooting Guide
Area Condition Check Item and Countermeasures
System 
ControlVL does not power on[If the power lamp does not light]
· Is the power cable of VisuaLink plugged into an AC outlet?
· Make sure the outlet has power and not controlled by a switch.
Remote controller does 
not operate
· Replace the battery in the remote controller.
· Point the remote controller toward the remote controller optical receiver 
located on the front panel of the VL.
· Please place the main unit so that the optical emitted from the remote 
controller hits the optical receiver.
Note:  Both batteries should be replaced at the same time.
VideoNo picture is displayed on 
the TV monitor[The power lamp is on, but the monitor shows no picture]
· Check the power switch on the monitor.
· Is the monitor set for the correct display input?
· Re-check the cable between the monitor and VisuaLink.  There should be 
a cable from the VideoOut 1 of the VL to the VideoIn 1 of the monitor.
[The remote  picture can not be displayed]
· Is the remote enabled to view the image in the PIP?
· Press RECEIVE key on the remote control.
· Is the local end connected to the remote site?
[The local picture is not displayed at the remote monitor]
Change the monitor picture to view the transmitting picture.
1. Is the camera powered on?
2. Is the camera cable correctly?
3. Is the correct camera image being sent.?
4. While viewing the remote room can the PIP be displayed?
5. Is there a connection to the remote site?
Press MAIN CAM key and CAM 2 key.
Camera does not move[The local camera does not move]
· Is the control set for local control?  Press the STATUS button on the 
remote controller to identify what type of control has been acquired.
· Is the camera control cable connected?
· Is the camera powered ON.  The camera must be powered ON when the 
system is turned ON.
[The remote camera does not move]
· Is the local end connected to the remote end?
· Is the control set for remote control?  Display indicates what type of 
control is acquired. 
						

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Chapter 9 VisuaLink 128/384 User Guide
Area Condition Check Item and Countermeasures
VideoPicture is slow[One channel has connected]
·  Look at front panel and verify that both B1 and B1-B6 LEDs are lit.
·  Video quality is set to Resolution handling
·  Change the video quality to motion handling.  This will increase the frame 
rate and allow more of the bandwidth to be dedicated towards the video 
motion
Picture is too Blocky[One channel has connected]
·  Look at front panel and verify that both B1 and B1-B6 LEDs are lit.
·  Video quality is set to Resolution handling
·  Change the video quality to motion handling.  This will increase the frame 
rate and allow more of the bandwidth to be dedicated towards the video 
motion
Local camera does not 
pan/tilt[Camera control cable is not connected]
·  Verify the camera control cable is connected from the SERIAL output of 
the VisuaLink to the VISC IN of the camera.
·  Camera is not a suggested manufacture.
·  VisuaLink is able to control two types of cameras the VCC1 and EVI-
D30.
Far-end camera does not 
pan/tilt[Camera control cable is not connected]
·  Verify the camera control cable is connected from the SERIAL output of 
the VisuaLink to the VISC IN of the camera.
·  Camera is not a suggested manufacture.
·  VisuaLink is able to control two types of cameras the VCC1 and EVI-
D30.
AudioAudio can not be heard
· Check the audio cable and volume setting.
Transmitting audio is very 
low at remote end
· Speaker is to far away from the microphone?
· Is the microphone cable connected?
· Increase the microphone gain setting.
· Increase the volume setting at the remote end.
Audio from the remote end 
is low[Volume setting is set to low]
· Using the remote controller increase the volume by selecting the volume 
up button
· The microphone gain level at the remote end is to low
· Increase the gain level for the microphone in the Audio setting section
Have increased the 
volume and microphone 
gain but the audio is still 
low[Check the Monitor volume knob]
· The monitor volume should be about half way.
I hear an Echo [Check the microphone to speaker distance]
· The microphone should be at least 6 feet (2 meters) away from the 
speaker.
Note:  Echo is always caused by the Far-end.