Page 2 - LIABILITY DISCLAIMER; All other brand or product names are or may be trademarks or
LIABILITY DISCLAIMER NEC America, Inc. reserves the right to change the specifications, functions, or features, at any time, without notice. NEC America, Inc. has prepared this document for the exclusive use by its employees and customers. The information contained herein is the property of NEC Amer...
Page 3 - Contents
i VisuaLink 128/384 General Description Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . 1-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Features . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Applications . . . . . . . . . . . . . . . . . . . . . ....
Page 5 - Introduction; Overview; In today’s fast paced business climate; VisuaLink sets new standards; NEC videoconferencing solutions
1-1 VisuaLink 128/384 General Description Introduction Overview In today’s fast paced business climate , timely access to accurate information is a critical resource in every successful organization. Often, this information must be communicated face-to-face. However, with busy schedules and remote l...
Page 6 - Features; Total Integration; • single compact unit; Portability; • use with most vendor; Wireless Remote; • buttons for calling and hang-up
1-2 Introduction VisuaLink 128/384 General Description Features VisuaLink incorporates features for today’s high performance technologies while making a videoconference system easy and cost effective to operate. Total Integration • single compact unit VisuaLink is a self-contained unit. It integrate...
Page 7 - Camera Control; presets; Echo Canceller; • connect up to 3 microphones; H.320 Videoconferencing Compliance; • settings for higher frame rate; Technical Description
Introduction 1-3 VisuaLink 128/384 General Description Phone-Like Dialing • VoicePoint+ connectivity for ease of dialing For those not wanting to dial using the VisuaLink remote, an NEC VoicePoint+ can be connected to the VisuaLink. (The VoicePoint+ is a tabletop speakerphone unit for conferencing; ...
Page 8 - Field Upgradable; • same software used for both; VisuaLink Quick Installation Guide; PBX Connectivity; • NT1 is not needed
1-4 Introduction VisuaLink 128/384 General Description Field Upgradable • same software used for both 128 & 384 units Often, keeping up with technology can be a full-time job in itself. Whenever a vendor releases a new software update, you must wait for it to arrive by mail or download patches f...
Page 9 - Applications
Introduction 1-5 VisuaLink 128/384 General Description Applications The Videoconferencing market is growing rapidly with the more widely available ISDN network and cost effective videoconferencing units such as VisuaLink. Videoconferencing is being adapted to a wide variety of applications. • Genera...
Page 11 - VisuaLink Documentation; • VisuaLink Quick Installation Guide, Stock # 0293885
Introduction 1-7 VisuaLink 128/384 General Description VisuaLink Documentation Additional information on VisuaLink can be found in the following NEC publications: • VisuaLink User Manual, Stock # 0293884 • VisuaLink Quick Installation Guide, Stock # 0293885 • VisuaLink Engineering Guide, Stock # 029...
Page 13 - Application Configurations; • Desktop PC
2-1 VisuaLink 128/384 General Description Application Configurations VisuaLink is the heart of a videoconferencing system. The compact VisuaLink unit can be configured with a variety of peripheral equipment to address most any videoconferencing need. Three configurations best use the VisuaLink techn...
Page 15 - Roll-About Components; Video Cabinet; Video Monitor
Application Configurations 2-3 VisuaLink 128/384 General Description Roll-About Components The Roll-About incorporates the following components into one easy to move unit for videoconferencing: • Video Cabinet • VisuaLink 128 or VisuaLink 384 Codec • Video Monitor • Motion Camera • Microphone • Cabl...
Page 16 - Motion Video Camera; Microphone
2-4 Application Configurations VisuaLink 128/384 General Description Motion Video Camera Motion Video Camera The motion camera (D30) is a full color camera with the following features: • Effective picture elements of 380,000 (EVI-D30) provides high-resolution video images • High speed pan/tilt/zoom ...
Page 17 - Desktop PC; • also available with
Application Configurations 2-5 VisuaLink 128/384 General Description Desktop PC • also available with control software The VisuaLink Desktop PC application configuration provides a business solution for videoconferencing at the individual desktop. Desktop PC components install and work with a user’s...
Page 18 - Desktop PC Components; Video Capture Board; CCD Desktop Camera
2-6 Application Configurations VisuaLink 128/384 General Description Desktop PC Components The Desktop PC incorporates the following components: • VisuaLink 128 or VisuaLink 384 • Video Capture Board • CCD Desktop Camera • Microphone • Cable Kit • VisuaLink Director software VisuaLink 128/384 Depend...
Page 19 - VisuaLink Director Software; Options; • Graphics Camera
Application Configurations 2-7 VisuaLink 128/384 General Description VisuaLink Director Software This Microsoft Windows 95 ® software allows the PC to control the VisuaLink 128/384 unit, thereby providing complete control of the videoconference. All functions are provided with easy to use PC screen ...
Page 20 - Personal Computer Requirements; • 16 Mb of system memory; Laptop PC option
2-8 Application Configurations VisuaLink 128/384 General Description Personal Computer Personal Computer Requirements VisuaLink Desktop PC is added to a user’s Personal Computer. The general requirements for a personal computer to support Desktop PC are: • Pentium CPU (100 Mhz or faster) • 16 Mb of ...
Page 21 - Gateway; • ViewPoint VBX Gateway; VisuaLink & ViewPoint VBX Gateway
Application Configurations 2-9 VisuaLink 128/384 General Description Gateway The VisuaLink Gateway application configuration allows shared VisuaLink 128/384 units between many users. Existing desktop video/audio equipment users can now have high quality videoconferencing with VisuaLink. VisuaLink un...
Page 22 - VisuaLink Direct Connect Gateway
2-10 Application Configurations VisuaLink 128/384 General Description VisuaLink Direct Connect Gateway The VisuaLink Direct Connect Gateway application configuration uses VisuaLink 128/384 units as shared resources for different video/audio users and groups in a facility. The diagram shows VisuaLink...
Page 24 - Video & Audio Interfaces; • H.261 - supports older low resolution systems with video; Videoconferencing
3-2 Technical Description VisuaLink 128/384 General Description Video & Audio Interfaces These circuits provide the correct electrical and protocol connections for video sources, video outputs and display monitors, audio sources, and audio outputs. Connections are provided for microphones, heads...
Page 25 - System Control; Line Interface
Technical Description 3-3 VisuaLink 128/384 General Description System Control The System Control circuit manages the many separate functions of VisuaLink. This circuit provides control for the Codec and other devices. Various control devices can be used for VisuaLink: VisuaLink infrared remote cont...
Page 26 - Picture Resolution
3-4 Technical Description VisuaLink 128/384 General Description ...more on H.320 Videoconferencing ITU-T H.320 specifies technical requirements for narrow-band visual telephone systems and terminal equipment-- typically for videoconferencing and videophone services. The H.320 standard defines the mi...
Page 27 - Video Processing
Technical Description 3-5 VisuaLink 128/384 General Description Video Processing Video Processing is a complex process to reduce the amount of image data that must be processed on any given picture frame. If processing is not used, videoconference performance is reduced by conditions such as complex...
Page 29 - Installation & Maintenance; Installation Requirements
4-1 VisuaLink 128/384 General Description Installation & Maintenance Installation Requirements The compact VisuaLink units need no special installation. However, the following should be considered when using or mounting the VisuaLink units. • Place the VisuaLink unit on a stable surface (such as...
Page 30 - Maintenance Requirements; Note
4-2 Installation & Maintenance VisuaLink 128/384 General Description Maintenance Requirements There are no user serviceable (see Note ) components, modules, or circuits inside the VisuaLink units. If experiencing problems, follow these guidelines: • Ensure a power source is connected to the Visu...
Page 31 - Specifications; General Specifications
5-1 VisuaLink 128/384 General Description Specifications General Specifications The following diagrams illustrate the VisuaLink 128 and VisuaLink 384 units. All front and rear panel connections are shown. (See the General Parameters table for dimensions.) VisuaLink 128/384 Front & Rear Panels an...
Page 33 - Parameter; Line; Video
Specifications 5-3 VisuaLink 128/384 General Description General Parameters Parameter VisuaLink 128 VisuaLink 384 ConnectionLine Type Basic Rate Interface (BRI)National ISDN-1 Basic Rate Interface (BRI)National ISDN-1 Line Transmission Speed • Tel• 64 Kbps (B), 2x64 Kbps (2B)• Upgradeable to 384 Kbp...
Page 34 - Data
5-4 Specifications VisuaLink 128/384 General Description General Parameters (Cont) Parameter VisuaLink 128 VisuaLink 384 Data Serial • Ports: 2 Serial (DIN 8-pin)• Speed: 1.2-38.4 Kbps, asynchronous• Start-Stop synchronization • Ports: 2 Serial (DIN 8-pin)• Speed: 1.2-38.4 Kbps, asynchronous• Start-...
Page 35 - External Interface Parameters
Specifications 5-5 VisuaLink 128/384 General Description 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 speeds: 1) 64/5...
Page 36 - AC Adapter Interface
5-6 Specifications VisuaLink 128/384 General Description External Interface Parameters (Cont) Parameter VisuaLink 128 VisuaLink 384 Audio Output Line Audio Out • Output level: -10dBv• Excessive Load Level:+3dB (G711, G728), +9dB (G722) • Output Impedance: Low impedance, unbalanced • Connector: RCA p...
Page 37 - Operating Modes & Features; VisuaLink Unit Control; Incoming Call Answer Modes
Specifications 5-7 VisuaLink 128/384 General Description Operating Modes & Features The following provides a summary of the main operating modes and features for VisuaLink. VisuaLink Unit Control VisuaLink can be controlled by one of three devices: • VisuaLink Wireless Infrared Remote Control • ...
Page 38 - Line Interface Control
5-8 Specifications VisuaLink 128/384 General Description Line Interface Control Originate at a 64 Kbps or 56 Kbps to the North American National ISDN-1. Line Connect Modes • BRI interface with VisuaLink 128/384 and other ISDN equipment (TA, FAX, etc.). • Selects an incoming call in a sub address set...
Page 39 - Maintenance
Specifications 5-9 VisuaLink 128/384 General Description Multi-Point Conference Control Multi-Point Conference Modes: • Audio Switch • Chairman mode (Video selection, local room transmission, multiple address, remote camera control, pointer control, still picture transmission, remote camera switch) ...
Page 40 - Serial Port Modes
5-10 Specifications VisuaLink 128/384 General Description Serial Port Modes Serial Port 1 • Console port (PC control) • VC-CI camera control port • EVI-D30 camera control port • T.120 data conference data transmission port (PC data conference) Serial Port 2 • Console port (PC control) • VC-CI camera...
