NEC Visualink 128/384 User Guide

							NDA-24230 Issue 2.0Page 2-7
VisuaLink 128/384 User Guide Chapter 2
Table 2-2: VisuaLink 128 and VisuaLink 384 External Interface Parameters
Parameter VisuaLink 128 VisuaLink 384
Line Interface• Applicable Line:
      (1) ISDN BRI
      (2) High speed digital leased line
• Interface: National ISDN-1
• Connector: 1 Modular jack (RJ-45)
• Transmission speed: 64/56 Kbps B,
                                  2x64/2x56 Kbps 2B• Applicable Line:
      (1) ISDN BRI
      (2) High speed digital leased line
• Interface: National ISDN-1
• Connectors: 3 Modular jacks (RJ-45)
• Transmission speed:   
1)  64, 128 192, 256, 320, 384 Kbps
2)  56, 112, 168, 224, 280, 336kbps
Video 
InputVideo 1 In• Standard: NTSC composite signal
(525 line, 59.94Hz)
• Connector: RCA pin jack• Standard: NTSC composite signal
(525 line, 59.94Hz)
• Connector: RCA pin jack
Video 2 In•  Standard: S-Video Component signal
(525 line, 59.94Hz)
•  Connector: DIN 4-pin•  Standard: S-Video Component signal
(525 line, 59.94Hz)
•  Connector: DIN 4-pin
Video 
OutputVideo 1 Out• Standard: NTSC composite signal
(525 line, 59.94Hz)
• Connector: RCA pin jack• Standard: NTSC composite signal
(525 line, 59.94Hz)
• Connector: RCA pin jack
Video 2 Out• Standard: S-Video Component signal
(525 line, 59.94Hz)
• Connector: DIN 4-pin• Standard: S-Video Component signal
(525 line, 59.94Hz)
• Connector: DIN 4-pin
Audio 
InputLine Audio In• Input level: -10dBv
• Excessive Load Level:+3dB (G711, 
G728), +9dB (G722)
• Input Impedance: High impedance, 
unbalanced
• Connector: RCA pin jack• Input level: -10dBv
• Excessive Load Level:+3dB (G711, G728), 
+9dB (G722)
• Input Impedance: High impedance, 
unbalanced
• Connector: RCA pin jack
Headset Input (Using recommended headset):
• Microphone: Electric condenser type 
(power supply voltage +25V)
• Input impedance: High impedance(Using recommended headset):
• Microphone: Electric condenser type (power 
supply voltage +25V)
• Input impedance: High impedance
Microphone 
Input (Using recommended microphone):
• Number of connections: 3
• Applicable microphone: Electric 
condenser type (power supply voltage + 
15V)
• Impedance: Low impedance(Using recommended microphone):
• Number of connections: 3
• Applicable microphone: Electric condenser 
type (power supply voltage + 15V)
• Impedance: Low impedance 
						

							Page 2-8NDA-24230 Issue 2.0
Chapter 2 VisuaLink 128/384 User Guide
Table 2-2: VisuaLink 128 and VisuaLink 384 External Interface Parameters (continued)
Parameter VisuaLink 128 VisuaLink 384
Audio 
OutputLine Audio 
Out• Output level: -10dBv
• Excessive Load Level: +3dB (G711, 
G728), +9dB (G722)
• Output Impedance: Low impedance, 
unbalanced
• Connector: RCA pin jack• Output level: -10dBv
• Excessive Load Level: +3dB (G711, G728), 
+9dB (G722)
• Output Impedance: Low impedance, 
unbalanced
• Connector: RCA pin jack
Headset 
Output (Using recommended headset):
• Speaker: Dynamic speaker
• Impedance: Low impedance(Using recommended headset):
• Speaker: Dynamic speaker
• Impedance: Low impedance
Serial 
Po r tSerial 1• Connector: DIN 8-pin
• Communication speed: 1.2~38.4 Kbps, 
start stop synchronization• Connector: DIN 8-pin
• Communication speed: 1.2~38.4 Kbps, start 
stop synchronization
Serial 2 / RMT• Connector: DIN 8-pin
• Communication speed: 1.2~38.4 Kbps, 
start stop synchronization• Connector: DIN 8-pin
• Communication speed: 1.2~38.4 Kbps, start 
stop synchronization
Analog Phone
Interface• Connecting cable: 2-line cable
• Connector: 6-pin modular jack (RJ-11)• Connecting cable: 2-line cable
• Connector: 6-pin modular jack (RJ-11)
AC Adapter Interface• Voltage: +5VDC
• Polarity: + inside, - outside
• Connector: EIAJ RC-5320A applicable• Voltage: +5VDC
• Polarity: + inside, - outside
• Connector: EIAJ RC-5320A applicable 
						

							NDA-24230 Issue 2.0Page 2-9
VisuaLink 128/384 User Guide Chapter 2
2.5  Remote Controller
2.5.1  Basic Operational Buttons
From top left to down followed by top right to down.
(a) MENU button
Displays the configuration menus on-screen.
(b) CALL button
Displays the line connection menu.
(c) HANG UP button
Hangs-up the video conference line.
(d) CALL PAGE button
Allows for scrolling of on-screen menus.
(e) CAMERA CONTROL button
Provides Pan/Tilt control of the camera.  In addition, provides up down/left/
right control of the cursor when the menu is displayed.
a
b
c
d
e 
						

							Page 2-10NDA-24230 Issue 2.0
Chapter 2 VisuaLink 128/384 User Guide
(f) NUMERICAL button
Used to enter preset dialing numbers and camera presets.
(g) STATUS button
Displays local time and conference status on-screen.
(h) MUTE button
Toggles between muting and unmuting the local mics.
(i) VOLUME button
Allows adjustment of the audio output.
(j) CANCEL button
Cancel the last entered using the on-screen menus.
(k) ENTER button 
Stores a value set by the user.
g
f
h
i
j
k 
						

							NDA-24230 Issue 2.0Page 2-11
VisuaLink 128/384 User Guide Chapter 2
2.5.2  Video Conference, Operational Buttons
From top left to down followed by top right to down.
1. RECEIVE button
Displays the far-site’s video on-screen.
2. PREVIEW button
Displays the local video on-screen.
3. MAIN CAMERA button
Sends video input #1 image to the far-site.
4. CAMERA 2 button
Sends the video #2 image to the far-site.
5. NEAR END button
Activates local camera control.
1
2
3
4
5 
						

							Page 2-12NDA-24230 Issue 2.0
Chapter 2 VisuaLink 128/384 User Guide
6. SNAPSHOT VIEW button
Displays the graphic camera image.
7. POINTER button
This turns on and off a pointer display.
8. PIP button
This turns on and off a PIP display.
9. SNAPSHOT SEND button
Sends a graphic image to the far-site.
10. ZOOM button
Allows for camera control of zoom in/out function.
11. FAR END button
Activates far-site camera control.
6
7
8
9
10
11 
						

							NDA-24230  Issue 2.0Page 3-1
VisuaLink 128/384 User Guide Chapter 3
Chapter 3  Initial Setting and Operation Checking
After completing the external phase, start the initial setting of VisuaLink.
3.1 Preparation 
¬
Put the attached two batteries in the attached remote controller.
Á
Turn the VisuaLink and all external equipment power in the ON
 position.
Â
Position the TV monitor and the VisuaLink system so that they can be viewed.
3.2 Turn Power ON or 
OFFThe VisuaLink can be turned ON
 or OFF
 by the POWER SWITCH
 on the front.
Turning on the power:
Press the POWER SWITCH
 on the front of the VisuaLink.  While the unit is 
powering up, the green LED power lamp and Line B1 and B2-B6 light 
simultaneously.  While the system is in an initialize state, a blue screen with the 
message Please wait for a while
 will be displayed on the monitor.  When the 
VisuaLink has completed its initialization, the message will disappear and be 
replaced with a preview video image.  In addition the B1 and B2-B6 LEDs will be 
extinguished.
Note 1:
Unstable picture and sound may momentarily be output at the start of the 
initialization.
Note 2:
If Line B1 B2-B6 LEDs do not extinguish after initialization (about 30 
seconds), please turn power OFF
 and then back to the ON
 position.
Turning power OFF:
When the POWER SWITCH
 is pressed while the power is in the ON
 position, 
the power turns OFF
.  The power lamp extinguishes when the power is OFF
.
POWER HEADSET
POWER
LINE
B1  B2-B6
Power SwitchPower LED 
						

							Page 3-2NDA-24230  Issue 2.0
Chapter 3 VisuaLink 128/384 User Guide
This page is for your notes. 
						

							NDA-24230 Issue 2.0Page 4-1
VisuaLink 128/384 User Guide Chapter 4
Chapter 4  Application Setup
4.1 Guidelines
The following are key points when installing the VisuaLink.
(1) The VisuaLink should be installed on a flat surface.  It is not recommended 
that the unit be installed on its side.
(2) Please allow for 2 inches (6 centimeters) on both sides of the equipment for 
ventilation.
(3) Allow the front of the unit to be visible.
The following are the specifications for the IR receiver/transmitter.
(1) The receiver is able to receive an IR signal up to 20 feet (6 meters).
(2) The IR receiver should be able to receive a signal at an angle of 30
 degrees 
or less from the left to right.
(3) The IR receiver should be able to receive a signal at an angle of 15 degrees 
or less from the top to bottom.
Please place only light objects on the equipment such as a telephone. 
						

							Page 4-2NDA-24230 Issue 2.0
Chapter 4 VisuaLink 128/384 User Guide
4.2 Hardware
The preceeding sections will give step by step procedures for the installation of the 
VisuaLink system in specific applications.  Pick the application and follow the 
instructions.  This section gives a description on how to setup a VisuaLink as a 
stand alone.
4.2.1  VisuaLink Standalone
Figure 4-1:  Connection Diagram for VisuaLink 128
Parts List
No. Name Note
1 VisuaLink 128 or VisuaLink 384 CODEC Engine.
2 Controllable Camera Generic camera to allow for the transmission of video.
3 Microphone Generic microphone to allow for transmission of audio
4 Monitor TV monitor to display local and remote video
+
+
++
+DC IN 5V+ -  Serial1           Serial2/RMT
O
U
T
I
N
VIDEO2                                VIDEO1            AUDIO
++TEL                           S/T LINEMI C1                                   MI C2                                   MIC3
ÅÆ ÃÂ
¬
Ä
AC VisuaLink 128
Camera Monitor
Á
AC
Microphone
NT1 S Interface
U Interface