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

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 16).

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 13), 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-xHD specifications

The UNIMUX-DVI-xHD is a cutting-edge device designed for seamless digital video distribution, tailored for high-definition multimedia applications. This advanced solution stands at the forefront of network technologies, enabling users to efficiently manage multiple DVI sources and outputs using a single, streamlined interface.

One of the main features of the UNIMUX-DVI-xHD is its ability to support resolutions up to 4K Ultra HD, ensuring that users can enjoy crystal-clear visuals without sacrificing quality. This capability makes it ideal for various applications, including digital signage, control rooms, broadcasting, and any environment where high-definition video presentation is crucial.

The device operates on a robust architecture that allows for the easy integration of multiple DVI sources. This versatility means users can connect a range of devices, from computers to media players, and switch between them effortlessly. The UNIMUX-DVI-xHD also supports hot-swapping, which allows for source devices to be added or removed without interrupting the ongoing operation. This feature is particularly valuable in dynamic environments where content is frequently changed.

Another noteworthy characteristic of the UNIMUX-DVI-xHD is its user-friendly interface. The device can be controlled remotely or locally via an intuitive graphical interface. This simplifies the process of managing multiple video streams and enhances the overall user experience. Furthermore, the device is compatible with various control systems, providing flexibility in integration and operation.

In terms of connectivity, the UNIMUX-DVI-xHD offers numerous input and output options, facilitating connections to both legacy and modern hardware. With multiple DVI ports, the device ensures that users have ample options for setup and configuration, making it adaptable to various professional environments.

The advanced circuitry of the UNIMUX-DVI-xHD provides excellent signal integrity, minimizing latency and ensuring that video and audio remain in sync during transmission. This reliability is critical in environments where precise timing is essential, such as live events and professional presentations.

Overall, the UNIMUX-DVI-xHD exemplifies the evolution of network technologies in video management. With its high-definition capabilities, user-friendly controls, and robust performance, it is an excellent choice for professionals seeking a reliable solution for video distribution. As demand for high-quality digital content continues to grow, devices like the UNIMUX-DVI-xHD will play an indispensable role in bridging technological gaps and enhancing visual communication across various platforms.