The HDBaseT 3.0 KVM Extender, KEX-HBT3-SH90P, offers uncompressed 18G HDMI 2.0 extension capability to transmit uncompressed 4K 60Hz (4:4:4) video through a single Cat6a or Cat7 cable up to 90 meters. Bi-directional HDMI transmission combines switch and splitter functions, enabling the HDMI output port on the Transmitter Unit (Local Out) to present local video from the TX or remote video from the RX. The switching can be simply achieved by pressing a button. The local/remote video switching function offers better visibility, allowing local users to monitor HDMI signals from both sides or broadcast HDMI signals on both the local (Sender) and remote (Receiver) units concurrently.

The Extender over CATx, supports HDCP 2.2 (High-Bandwidth Digital Content Protection) compatible with 4K UHD content and is backward-compatible with previous HDCP versions, meaning you can connect older sources to a new 4K TV for HD streaming without using an HDCP 2.x to 1.x converter. The Extender supports HDCP keys to ensure uninterrupted video playback at all times.

The HDBaseT KVM Extender, with audio embedder/extractor function, can independently transmit audio signals from the Transmitter unit to the Receiver unit, embed audio from a 3.5mm source to an HDMI signal, or extract HDMI audio to a 3.5mm stereo output. This provides a second audio transmission channel beneficial for content creators in video post-production or audio broadcasting with a home cinema amplifier installation.

RS-232 serial extension is commonly applied in digital signage, smart classrooms, and smart home systems. The Extender’s full-duplex data communication between TX and RX via CATx cable connection is a cost-effective, hardware-based solution providing remote access and control for all RS-232 protocol devices with no need for any setup or configuration.

The Extender enables users to transmit USB 2.0 signals with downward compatibility, eliminating the 5-meter distance limitation of USB. This feature supports USB peripherals sharing capability without any software or driver installation. Dedicated USB-A ports designed on the TX and RX units are suitable for both local and remote USB peripheral access.

The PoH (Power over HDBaseT) feature provides 48V from the Transmitter (PSE, 48V) to the Receiver (PD), allowing for greater flexibility in different installation scenarios where there is no available power socket nearby. The PoH design is based on the IEEE 802.3 standard and includes definitions of the power source equipment (PSE) and the powered device (PD), describing the detection and protection mechanisms to ensure safe and reliable power delivery.

Application Example of Bi-directional HDMI Transmission