SVMS4-DUAL Adder SmartView 4 Port PS2 & Dual Head VGA KVM Switch

The Adder SVMS4-DUAL SmartView 4 port PS2 & Dual Head VGA KVM switch features high quality video with DDC support and resolutions up to 1920 by 1440 pixels with its oftware independent operation that  ensures very wide compatibility. It has front panel key for computer selection, numerical display shows selected computer and keyboard/mouse activity and optional remote controller connects to rear. It is an excellent KVM solution for banking, security and engineering applications.




The SVMS4-DUAL (4 port with Dual Head) is part of the Adder SmartView range of KVM (Keyboard, Video monitor, Mouse) switches are known for their robust and reliable operation and have been trusted by many to provide problem free control of multiple computers. The MultiScreen is a new concept in KVM switches and using the SVMS4-DUAL  enables you to benefit from all the convenience of the proven SmartView switches whilst taking advantage of the multiple monitor facilities available on many modern computers.

Computers fitted with multiple video cards are becoming more common as operating systems have developed to make use of the extended video “real estate” offered by multiple monitors. The increased display area enables more information to be presented to the user without reducing the resolution. The SVMS4-DUAL MultiScreen enables 4 computers equipped with Dual Head video facilities to be controlled from a keyboard, mouse and two monitors. All the monitors and the keyboard and mouse are switched together from one computer to the next giving you full control of the wider picture.

Like all SmartView switches, the SVMS4-DUAL MultiScreen maximises the video quality by minimising any ghosting, smudging or fading effects. Consequently, excellent video clarity is maintained even at higher screen resolutions. DDC (Display Data Channel) signalling is supported on all the SmartView’s video ports making them “plug-and-play” compatible and enabling your computers’ video cards to be configured for best performance.

The SVMS4-DUAL SmartView recognises the importance of quick and easy channel switching by providing features that simplify the computer selection process. The keyboard hotkey sequences are designed for quick-fire operation and the mouse may be used to “flick through” active computers with minimal hand movements. Ease of use is further enhanced by the optional remote controller which enables a very neat installation whilst keeping you in full control.


  1. Control several multi-video enabled PCs from a single keyboard, mouse and bank of video monitors.
  2. High quality video with DDC support and resolutions up to 1920 by 1440 pixels.
  3. Dual and quad video head models available with two and four computer ports.
  4. Computer selection via keyboard hotkeys, mouse, front panel key, RS232 or remote controller.
  5. SmartBoot enables simultaneous bootup of all computers.
  6. Software independent operation ensures very wide compatibility.
  7. Reliably draws power from the attached PCs avoiding the need for an extra power supply.
  8. Flash upgradeable for future device support and enhancements.
  9. Excellent for banking, security and engineering applications.
  10. Cascadeable to support more than four computers.
  11. Hardware compatible with desktop and laptop PCs, RS6000, SGI and DEC Alphas.
  12. May be linked together to synchronously switch up to sixteen monitors.

Enables a keyboard, mouse and 4 monitors to control 4 computers.

Enables a keyboard, mouse and 2 monitors to control 4 computers.

Enables a keyboard, mouse and 4 monitors to control 2 computers.

Enables a keyboard, mouse and 2 monitors to control 2 computers.


All connectors are rear mounted to ensure a neat installation and are colour coded according to the PC99 specification (keyboard=violet, mouse=green, video=blue) for easy identification. Keyboard and mouse ports use 6-pin mini-DIN female connectors. Video ports use standard 15-way high-density D-type connectors. Options port uses 15-way standard D-type connector with proprietary pin allocation. DC power connector provided for video-only and other special applications where interface powering is not possible.


  • Front panel key for computer selection.
  • Numerical display shows selected computer and keyboard/mouse activity.
  • Optional remote controller connects to rear.
  • Base-mounted reset and option switches.

Computer selection

Computers may be selected using the front panel key, keyboard hotkeys, a three button mouse or wheel mouse, RS232 data commands or the optional remote controller. The hotkeys are selectable and are designed to be quick-fire using a minimum number of key presses. The mouse may be used to select the next or previous computer by holding down the centre button whilst pressing the left or right button. Both keyboard hotkey and mouse switching may be independently disabled if required. When cycling through channels using the mouse or the hotkeys the user may configure the SmartView to select all ports or just the ports that have powered PCs attached. RS232 switching is useful for automated operation and the remote controller provides a convenient control method without locating the SmartView on the desk.

Operation mode

The keyboard, mouse and all the video heads are switched together so that the keyboard and mouse are controlling the computer whose video is currently displayed on the monitors.

Synchronised switching

SmartView MultiScreen devices may be linked together via their options ports to provide synchronised switching of 8, 12 or 16 video channels controlled from one master unit.

Other features

The SmartView provides a wide range of useful features including:

  • User selectable password protection.
  • Autoscan of all or active ports with selectable dwell times.
  • Screen saver feature with selectable “kick in” time.
  • User selectable keyboard hotkey combinations.
  • Video may be disabled (channel zero selection).
  • Ability to cycle between computers using hotkeys plus TAB.

Keyboard ports

PS/2 or AT style keyboards supported. PS/2 keyboards plug in directly. AT keyboards require a 6-pin mini-DIN to 5-pin DIN adapter. Automatic mode emulation and num / caps / scroll updates ensures that the keyboard is always in the expected state. Modes 1,2 and 3 are supported for full compatibility. Keyboard data is kept in its native format to ensure support for additional web control, hot media and other extra keys.

Mouse ports

The controlling PS/2 style mouse plugs directly into the SmartView. SmartView supports 2 and 3 button mice and most wheel and scroll mice including the Microsoft IntelliMouse and IntelliMouse Explorer. PS/2 or RS232 mouse connections to computers may be made in any combination. RS232 mice require an additional cabling adapter (VSA1). Prompt and stream mode support ensures compatibility with desktop and laptop PCs. 3 button mice or wheel mice may optionally be used to switch the SmartView’s channel. Continuous port emulation on non-selected ports ensures problem free computer bootup.

Video ports

High bandwidth video supported at resolutions up to 1920 x 1440. Low distortion and excellent video transfer characteristic. Supports VGA / SVGA / XGA / XGA-2 / SXGA and UXGA video and VESA DDC1 and DDC2 signalling. Screen saver feature with user selectable “kick in” time.


Flash upgradeable to support new devices by connecting a computer’s serial port to the options port and running a download program.

Software and hardware compatibility

Software independent operation ensures very wide compatibility that includes Windows 3.X, WFWG, 95, 98, 2000, NT, ME, XP, DOS, Unix, Linux, NetWare, OS/2 and BSD. Hardware compatible with desktop and laptop PCs, RS6000, SGI and DEC Alphas.

Optional remote controller

Plugs into the options port at the rear of the SmartView. Duplicates the SmartView’s front panel key and numerical display. May be attached to the top of a keyboard or the side of a monitor by the Velcro strips supplied. 60 x 29 x 12 mm. White / cream finish.


For maximum convenience and reliability the SmartView draws its power from the attached computers like a keyboard. Optional power socket provided for video only applications. Interface ports individually fused with auto resettable fuses to protect your computers.


Metal case 260 x 105 x 155 mm. Steel and aluminium construction. SVMS4-Quad model weighs 1.5 kg.


Complies with European EMC directive 89/336/EEC. CE marked. FCC class A compliant.


SmartView to keyboard, mouse and monitors – 2m if interface powered or 10m if PSU used.
SmartView to computers – 5m if interface powered or 30m if PSU used. ADDER 3-in-1 KVM cables recommended for keyboard, mouse and first video ports. High quality tri-coax video cables recommended for additional video ports.

Order Codes

SVMS2-DUAL: SmartView MultiScreen 2 port, dual video
SVMS2-QUAD: SmartView MultiScreen 2 port, quad video
SVMS4-DUAL: SmartView MultiScreen 4 port, dual video
SVMS4-QUAD: SmartView MultiScreen 4 port, quad video

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