Network Technologies PS/2 KVM operation manual Command Protocol, Format RS Aacr

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NTI KEEMUX Series PS/2 KVM Switch

Command Protocol

CPU controller commands supported by the unit are defined below. All commands should be terminated with a <CR> (carriage return). When a command is sent, the entire string is echoed back along with a response from the addressed unit . All characters in the command string should be upper case, and all numbers below 10 should have a leading 0 (ex: 1 = 01). As command strings are sent, the inner character delay cannot exceed 500 milliseconds.

Note: To use this command protocol, the user is required to write a program that will send an entire command string all at once, not character by character. Programs that send one character at a time (such as HyperTerminal) cannot be used to control the KEEMUX. Alternatively, the user may use the Matrix Switcher's Control Program or SerTest to control the KEEMUX via RS232 (see page 21).

RS - reset unit(s) to default power-up configuration

FORMAT: RS AA<CR>

RS = "reset unit" command followed by at least one space

 

AA = unit address; if 00, all units on the bus will be reset and no response will be

 

returned

RESPONSE:

*<CR> if command received and executed OK

 

-OR-

?<CR> if syntax or transmission error occurred

Note: The RS command does not change the actual configuration.

CS - change single USER channel

FORMAT: CS AA,XX,YY<CR>

CS = "change single output" command followed by at least one space

AA = unit address

XX= input/CPU to connect

YY= output/USER to change

RESPONSE:

*<CR> (command received and executed OK)

-OR-

?<CR> (syntax or transmission error occurred)

RO - read single USER channel

FORMAT: RO AA,XX<CR>

RO = "read output" command followed by at least one space

AA = unit address

XX = output/USER to read

RESPONSE:

*<CR> (command received and executed OK)

XX<CR> (XX = input/CPU connected)

-OR-

?<CR> (syntax or transmission error occurred)

RU - read unit size

FORMAT: RU AA<CR>

RU = "read unit size" command followed by at least one space

AA = unit address

RESPONSE:

*<CR> (command received and executed OK)

XX,YY<CR> (XX = # of CPU’s, YY = # of USERS)

-OR-

?<CR> (syntax or transmission error occurred)

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Contents KEEMUX-Px Trademark Table of Contents Table of Figures Introduction MaterialsAvailable Options LimitationsFeatures and Functions Installation Prepare To ConnectMake Connections AT Style Connector Rear View of KEEMUX-P8Power Up CascadingLimitations Configuration Cascaded InstallationUsing the NTI Keemux PS/2 KVM Switch Front Panel ControlBasic Command Mode Command Functions Keystroke Increment PortKeyboard Control Keyboard PressScan Mode Broadcast ModeNormal Mode Enabling the Security Feature User Login ModeOSD Control Security OptionAdministration Mode Administrator PasswordAdditional Modes Available With Security System Access List User Name ListTab Esc Keystroke Ctrl EscUser Access Functions OSD Command ModeKeystroke Ctrl + S Ctrl + B Ctrl + E Ctrl + M OSD Command Mode Contd FunctionKeystroke Press Ctrl for more functionsEdit Mode Erase previous characterSearch Mode Maintenance ModeEsc Enter Help Mode Maintenance Mode Cont’d FunctionKeystrokeActivate security features RS232 Connections and Configuration Remote ConnectionBaud Rate Unit Address and Loop Back RS232 Matrix-Y-1 CPU Serial PortFirst Unit Second Unit Last Unit Command Protocol Format RS AacrNTI Switch Control Program For Windows 9X, NT, 2000 And XP SerTest- RS232 Interface Test ProgramMain Options Keyboard Mapping Ethernet Operations not applicable to this modelHOW to Disable Operating Modes For models KEEMUX-Pxin a plastic caseConfiguring The Jumper Block Clear the jumper block for configuration accessAudio Support Dual Video SupportSpecifications for STRAIGHT-THROUGH RS232 Serial Cable TroubleshootingWarranty Information

PS/2 KVM specifications

Network Technologies PS/2 KVM switches are essential devices that enable users to control multiple computers from a single set of keyboard, video, and mouse (KVM) peripherals. These devices are particularly advantageous in server rooms, data centers, and environments where space-saving is crucial, as they streamline the management and minimize the clutter of multiple keyboards and monitors.

A key feature of PS/2 KVM switches is their compatibility with the PS/2 interface, which has been a standard for connecting keyboards and mice for many years. This ensures reliable communication and seamless performance when managing various systems. The switch typically supports a wide range of resolutions, allowing users to connect to different video outputs without sacrificing image quality. Most PS/2 KVM setups can handle resolutions up to 1920x1200, making them suitable for high-definition applications.

One of the primary technologies utilized in PS/2 KVM switches is multi-platform support. This allows users to connect and control computers running different operating systems simultaneously, including Windows, Linux, and UNIX. This versatility is essential in environments with varied system requirements and contributes to improved operational efficiency.

In terms of scalability, many PS/2 KVM switches support daisy chaining and cascading, enabling the connection of multiple switches for managing even larger numbers of servers. This is particularly helpful for administrators who need to manage extensive infrastructures without the hassle of additional hardware.

PS/2 KVM switches also come with features such as hotkey switching, which allows users to switch between computers using keyboard shortcuts. This functionality enhances workflow efficiency, as users can quickly access different systems without the need for manual intervention. Additionally, they often include LED indicators that simplify status monitoring, ensuring users are aware of which systems are currently active.

Security is another critical aspect. Many PS/2 KVM switches offer the option to implement password protection and encryption protocols, safeguarding sensitive data during operations.

In summary, Network Technologies PS/2 KVM switches provide a robust and effective solution for managing multiple computers in various settings. Their combination of compatibility, resolution support, scalability, and security features makes them a valuable asset for IT professionals looking to enhance productivity and streamline operations.
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