What is DDM (Dynamic Device Mapping) and How It Works in KVM Switch?

What is DDM (Dynamic Device Mapping) and How It Works in KVM Switch?


In the ever-evolving landscape of technology, the need for efficient and seamless connectivity between devices has become paramount. KVM switches play a crucial role in facilitating this connectivity, allowing users to switch between multiple systems effortlessly. One innovative technology that enhances this experience is Dynamic Device Mapping (DDM). TESmart, a leading provider of KVMs, integrates DDM into its KVM switches' Passthrough mode, elevating the compatibility of keyboards and mice while enhancing the overall user experience.


Understanding DDM Technology

Dynamic Device Mapping, or DDM, is a cutting-edge technology employed in USB KVM switches as an alternative to standard USB keyboard and mouse emulation. Unlike traditional emulation methods, DDM ensures continuous communication between shared peripherals and all connected systems, maintaining a 100% connection even as users switch between KVM ports.


The Role of DDM in KVM Device Emulation

Traditional USB KVM devices often utilize peripheral emulation to send signals to computers not currently selected, simulating the presence of a connected keyboard, mouse, and monitor. This emulation is crucial for avoiding issues with machines that may reboot during unattended operation. However, it comes with limitations and inconsistencies, especially when dealing with various types of I/O devices.

DDM takes KVM device emulation to the next level by eliminating the need for generic device emulation. With DDM, each connected computer system believes that all I/O devices remain connected, even when the KVM switch shifts to another port. This innovative approach ensures a seamless experience without the interruptions or inconsistencies associated with traditional emulation methods.


What is Pass-through Mode

Pass-through mode is a built-in function of KVM, which is able to improve keyboard and mouse compatibility and enhance user experience.

TESmart's KVM switches incorporate a Pass-through mode, a built-in feature primarily utilizing DDM technology. This mode significantly improves the compatibility of keyboards and mice, providing users with an experience akin to a direct connection to the computer. In Pass-through mode, users can enjoy a broader range of keyboard and mouse functionalities by connecting the keyboard and mouse to the dedicated keyboard and mouse ports, including special features not supported by traditional KVM switches.

At the USB protocol level, the Pass-through mode in TESmart's products ensures the transmission of authentic device descriptors to the computer. This guarantees that keyboards and mice connected to the KVM switch maintain the same functionality as when directly connected to the computer. In contrast to many other KVMs on the market, which simulate a USB Composite Device internally, TESmart's approach allows for seamless and full-functioning use of peripherals.

Switching between input source devices on TESmart's KVM switches does not result in the disconnection of the connected keyboard and mouse from any PC. The internal selector in the product ensures real-time transmission of USB data to the correct PC. This eliminates the inconvenience of frequent device disconnects and reconnects, enabling immediate use of keyboards and mice when switching between input source devices. It's a time-saving solution that enhances overall productivity.


TESmart's Product with Pass-through Mode

Almost all of TESmart's products support Pass-through mode and 100% equipped in the newly released products. You can take any TESmart products without searching for this feature. Below is a partial list of fully compatible devices, when you use these devices it is equivalent to connecting directly to your computer and you can freely use the built-in functions that come with these devices.

Click this link "To Enjoy Smart": https://www.tesmart.com/collections



Dynamic Device Mapping technology represents a significant leap forward in the realm of KVM switches. By ensuring continuous communication between peripherals and connected systems, DDM eliminates the drawbacks associated with standard device emulation. TESmart's integration of DDM technology in Pass-through mode redefines the KVM switch experience, ensuring compatibility, flexibility, and a seamless transition between connected devices. Explore the enhanced features of these products for an elevated KVM switch experience.


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