What is a kvm switch?

KVM switch is also called multi-computer controller. A KVM switch can control 2, 4, 8, 16 or more computers or servers. The network connection between them It can be controlled from anywhere in the world; the control port of the KVM switch is mainly used to connect the USB port of the keyboard and mouse to the VGA port of the monitor.

#The operating environment of this article: windows10 system, thinkpad t480 computer.

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KVM switches play an important role in spaces where the racks of the server room are inconvenient to store multiple monitors and keyboards. . A KVM switch can monitor and control multiple computers and servers locally or remotely. A KVM console consisting of a keyboard, mouse and display is the most convenient and economical ideal solution.

1. What is a KVM switch?

KVM switch is also called a multi-computer controller. One KVM switch can control 2, 4, 8, 16 or More computers or servers, with simple interfaces that are easy to operate, and network connections between them that can be controlled from near and far around the world. The control port of the KVM switch is mainly used to connect the USB port of the keyboard and mouse to the VGA port of the monitor, while the service port has a different number of RJ45 ports for connecting to computers or servers, and they can be connected by CAT5, CAT5E, CAT6 to connect.

2. Working principle of KVM switch

KVM switch mainly uses a console composed of keyboard, mouse, and monitor to securely access local data. Users or remote users' computers, servers and other devices, and can control local or remote users using the network.

3. Advantages of KVM switch

① It can save space on the monitor, keyboard, and mouse. For example, an 8-way KVM switch can control 8 servers with a set of mouse, keyboard and monitor.

②Improve operational efficiency. In the past, when a fault occurred, people had to take the initiative to find it, which not only cost time and energy but also was inefficient. But now a KVM switch can control all machines, which not only saves manpower but also improves efficiency.

③ Save costs. Reducing the consumption of space and manpower can save a lot of costs, and controlling network operating costs is one of the key factors for enterprise success.

④Local or remote management. Using a KVM switch for local or remote management can ensure 24-hour uninterrupted management and maintenance of the network, ensuring network security and stability.

4. How to use KVM switch

The switching methods of KVM switch are generally: button switching, OSD menu switching, and shortcut key switching.

①Button switching uses the physical button on KVM. You can select the corresponding server by directly pressing the physical button.

②The OSD menu is the software inside KVM. You can use the mouse to select the corresponding server to switch according to the server name displayed on the menu.

③Shortcut keys are generally key combinations, such as Ctrl and a certain data key. There are four servers 1, 2, 3, and 4. Select Ctrl 1 to select the first server, which is simple and convenient.

5. Scope of application of KVM switch

KVM switch uses CAT5/5e/6 cable to connect to the server, supporting one local user and one remote user to operate multiple servers at the same time anywhere in the world. , supporting mutual sharing of local channel and digital channel quality inspection resources. The flexibility of KVM switches is enough to meet the needs of any multi-computer and multi-server applications such as home offices, small and medium-sized enterprises, small and medium-sized computer rooms, etc.

Comparison between KVM switch and KVM optical transceiver/virtual machine

(1) The difference between KVM switch and KVM optical transceiver

KVM optical transceiver is composed of KVM transmitter and KVM receiver It is mainly used for signal transmission in multimedia application systems. KVM switches are mainly used to monitor and manage multiple computers and multiple servers. There is a big difference in the nature of the two.

(2) The difference between KVM switch and KVM virtual machine

KVM switch is a hardware switching device, and KVM is the abbreviation of Keyboard Video Mouse. The KVM virtual machine is a commonly used virtual machine under Linux systems. It is the abbreviation of Kernel-based Virtual Machine and is an open source system virtualization module.

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