Command Protocol, Autostatus | Network Technologies UNIMUX-DVI-x

NTI UNIMUX SERIES USB KVM SWITCH

Command Protocol

RS232 commands supported by the unit are defined below. All command strings 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 as shown in the command definitions. 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.

CPU

		SWITCH AT UNIT ADDRESS 01
(COMMAND SENT)	RS232	(COMMAND RECEIVED)
CS 01,01,03<CR>		CS 01,01,03<CR>
		CS 01,01,03<CR>
		(ECHO)
		CS 01,01,03<CR>
(RESPONSE RECEIVED)	RS232	(RESPOND)
CS 01,01,03<CR>	RS232	(RESPOND)
CS 01,01,03<CR>		* <CR>

* <CR>

Figure 13- RS232 Communication Illustrated

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 UNIMUX. Alternatively, the user may use the NTI Switch Control Program or SerTest to control the UNIMUX via RS232 (see page 15).

Legend:		(All numbers must be two digits)
SW	:	Switch (01-15) (Unit Address)
OP	:	Output (User) Port (01)
IP	:	Input (CPU) Port (01-MAXINPUTS)
<CR>	:	Carriage Return (Hex 0xD)

Note: For units with one output (user) port, use 01 for the output selection.

Command Definitions

Command String	Good Response	Description
Command String	Good Response	Description
CS SW,IP,OP	*<CR>	Connect Output (User) Port To specific Input (CPU) Port
RO SW,OP	*<CR>IP<CR>	Read Connection For Output (User) Port to Input (CPU) Port
RS SW	*<CR>	Internal Reset
RU SW	*<CR>IP,OP<CR>	Read Unit Size
SS SW,00	*<CR>	Disable Autostatus feature (see below)
SS SW,01	*<CR>	Enable Autostatus feature (see below)
GO SW,OP	*<CR>go SW,OP:IP<CR>	Read connection of a Output (User) Port to Input (CPU) Port
		(different response format than RO command)
GM SW,00	*<CR>go OP,IP (all ports)<CR>	Read connection matrix of all Output (User) ports

If the first field is not a known command (as listed above) or SW field is different from the unit address programmed at the dip switch (page 12), the command will be ignored. If the SW field corresponds to the unit address, but if the syntax is wrong after this field, the switch will answer with a bad response ?<CR>.

Autostatus

When Autostatus is enabled, any output (user) -to-input (CPU) connection change in the UNIMUX will cause an Autostatus message to be sent via RS232 to the administrator. The format of the message would be "pc SW,OP:IP<CR>"

Example of an Autostatus message:

pc 01,01:04<CR>

which means "At the switch with unit address 01, the output (User) (01) has changed connection to input (CPU) port 04."

Note: An Autostatus message to the administrator will be delayed by any RS232 traffic being received by the switch from the administrator.

By default, Autostatus is disabled and must be manually enabled.

UNIMUX-DVI-x, USB DVI KVM specifications

In today's technology-driven world, managing multiple devices efficiently is a necessity for many businesses and tech enthusiasts. One solution that stands out is the USB DVI KVM switch, specifically the UNIMUX-DVI-x model. These devices serve as a critical interface, allowing users to control multiple computers from a single keyboard, monitor, and mouse setup.

The UNIMUX-DVI-x USB DVI KVM switch is designed to facilitate seamless switching between multiple computers. Its primary feature is its support for DVI video, ensuring high-resolution output that caters to professional environments where display quality is paramount. With DVI compatibility, users can enjoy stunning visuals without the need for additional adapters, making installation straightforward and efficient.

One of the standout features of the UNIMUX-DVI-x is its ability to support USB peripherals. This includes not only keyboards and mice but also USB storage devices and printers. The KVM switch allows users to share these devices among the connected computers effortlessly. This functionality promotes a streamlined workspace, eliminating the clutter of cables and giving users the flexibility to switch control between different systems with ease.

Technologically, the UNIMUX-DVI-x incorporates advanced switching mechanisms that guarantee a fast and reliable response time. Users can switch between connected computers with just a push of a button, which is essential in fast-paced environments where time is of the essence. Additionally, the device supports multiple resolutions, catering to a wide range of displays and ensuring compatibility with various systems.

Another characteristic that enhances the usability of the UNIMUX-DVI-x is its compact and robust design. Built for longevity, this KVM switch is equipped with durable materials that withstand the rigors of daily use. Whether in a corporate office, a server room, or a home setup, its compact design allows it to fit into tight spaces without compromising functionality.

Furthermore, the UNIMUX-DVI-x supports cross-platform compatibility. It works seamlessly with both Windows and macOS systems, making it a versatile choice for users operating diverse computing environments. This feature positions it as an ideal tool for IT professionals who manage different operating systems.

In conclusion, the USB DVI KVM switch UNIMUX-DVI-x is a powerful device that blends advanced technology with user-friendly features. It caters to the needs of professionals by providing robust video resolution, support for USB peripherals, compact design, and cross-platform compatibility, thereby simplifying the management of multiple computers in today’s interconnected world.