NTI PRIMUX KVM Matrix Switch via CAT5


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The NTI PRIMUX-8X32 is the PRIMUX KVM Matrix Switch via CAT5 provides non-blocking access for up to 8 simultaneous users to up to 32 servers. The switch frees up valuable space by eliminating large KVM switchboxes and bulky hard-to-manage coax cables. It is an ideal solution for high-density server environments.

The PRIMUX system consists of three components: Matrix Switch, connects users to servers; Host Adapters, connect to each server; and User Stations, connect to each set of user-station equipment - keyboard, monitor and mouse. The User Stations and Host Adapters can be located as far as 1,000 feet from each other, and are connected to the matrix switch via CAT5/5e/6 UTP cable.

NTI PRIMUX-8X32 Features:

  • Multi-user, multi-platform, multi-rack access.
  • Platform-specific host adapters for host connection - PS/2, USB and SUN.
  • Ideal for hazardous/unsecured environments. The User Stations can be located up to 1,000 feet from the servers.
  • Inexpensive CAT5/5e/6 UTP cable replaces bulky KVM cables.
  • Simple plug-and-play auto-configured installation.
    • Servers are discovered as they are powered up, and can be accessed immediately by authorized users.
  • Hot-swap components with no disruption of server operation.
  • Supports video resolutions to 1920x1440.
  • Automatically adjusts the video quality to compensate for varying lengths of CAT5/5e/6 cable.
  • Dedicated microprocessors prevent CPUs from locking up, ensuring reliable control.
  • Real time power status of connected servers.
  • Provides connection to servers during power up at the BIOS level.
  • Command and control provided by OSD of connected User Station.
  • Flash upgradeable.

NTI PRIMUX-8X32 Details:

User Station:


  • Female 15-pin HD connector.

  • A multiscan VGA monitor is required to display the different video outputs from different platforms.

  • Maximum 1024x768 video resolution at 1,000 feet; higher resolutions are supported at shorter distances.

  • Supports Separate and Composite TTL level sync.

  • Supports the DDC2B.


  • Two female USB Type A/two 6-pin miniDIN connectors.
  • Supports all standard PS/2 keyboards and most USB keyboards with Windows or SUN keyboard layout.
  • Keyboards and mice are hot-pluggable.
  • NTI recommends using a USB SUN keyboard if there are SUN hosts being controlled.
  • User keyboard and mouse must be of the same platform.
  • Supports standard 2-button PS/2 mice, as well as:
    • Microsoft IntelliMouse¨.
    • Logitech (and other) 3-button mice.
    • Alps Glidepoint touchpad (extended functions, i.e. tapping, etc., are not supported).
    • Cirque Glidepoint touchpad.
    • IBM Scroll Point mouse (extended stick functions are not supported).
    • Kensington Orbit trackball.
    • Logitech 2-button wheel mouse.
    • Microsoft Ballpoint mouse.
  • USB SUN 3-button mice are supported.
  • Most USB mice (up to 3 buttons), including Microsoft USB Intellimouse.

Control Methods:

On Screen Display:

  • Use keyboard or mouse to operate the switch from menus superimposed onto the monitor.

  • Displays the platform, name, and power status of the connected servers.

  • Allows color skew and video compensation fine tuning for optimal video quality.

  • Locate and select servers by name.

  • Names can be up to 16 characters long.

  • Help Screens assist users with OSD.

  • Modify the size and position of the OSD.

  • OS- and software-independent.

  • Various administrator configuration features, including users, servers and user stations.


  • Administrator can enable or disable all security features and select which servers each user can access.

  • Add or remove authorized users.

  • Set individual user names and passwords for each user.

Modes of Operation:

  • Normal- a user connected to a host. Scan- user is subsequently connected to hosts from a list.

  • Sharing- the administrator can select for each host a sharing attribute, which defines multiple user access to the host

    • None (not shared)- one user is connected to the host and control it. No other user may select nor control that host.

    • Limited (video shared)- one user is connected to and controls the host. Other users may select and see the video output from the host, but not control the host.

    • Full (shared)- a host may be selected by many users; the host is still controlled by one user, but its control may be given to any other user after an inactivity timeout (share idle time).


  • Configuration can be done through the serial port.

  • Baud rate: 115200

Ethernet Control:

  • Configuration can be done over the Internet via Telnet.

  • 10/100 BaseT Ethernet interface.

NTI PRIMUX-8X32 Application Diagram

NTI PRIMUX-8X32 Application Diagram

NTI PRIMUX-8X32 Specifications:

Width 19 in. (7.5 cm.)
Height 1.75 in. (0.7 cm.)
Depth 12 in. (4.7 cm.)
  • Female RJ45 input/output connectors.

    • 10/100 BaseT Ethernet interface

  • Male DB9 connector.

  • Female SCSI 68-pin connector

Operating Temperature 32°F to 100°F (0°C to 38°C).
Storage Temperature -20°F to 140°F (-30°C to 60°C).
Operating and Storage Relative Humidity 17 to 90% non-condensing RH.
Host Adapters  
Hosts One platform specific (USB + PS/2, SUN) HA-x host adapter is required for each computer.
  • Compatible with PS/2 and USB computers with VGA video.

  • One male 15-pin HD, one male 6-pin miniDIN, and one male USB Type A connectors.

    • Includes a female USB Type A to male 6-pin miniDIN adapter

HA-SUN Compatible with legacy SUN computers with VGA video.
One male 15-pin HD and one male 8-pin miniDIN connectors.
Cables Use CAT5, CAT5e or CAT6 UTP cable to daisy chain host adapters and user station.
Use Cat5, Cat6e, Cat6 UTP straight through cable for TIA/EIA-568B wiring terminated with standard RJ45 connectors.
Cables not included.
Power 110 or 220 VAC at 50 or 60 Hz via IEC connector.
Regulatory Approvals CE and RoHS
Question: What USB are supported 1.0, 1.1 or 2.0?
Answer: Thank you for your inquiry. This switch is USB 1.1 compatible.