ALF-SCK51TS-D

Josawa ALF-SCK51TS-D - 5x1 presentation switcher with HDBaseT and Dante Audio

The Josawa ALF-SCK51TS-D is a professional 5x1 presentation switcher equipped with an HDBaseT receiver, designed for modern conference rooms, training spaces, and video conferencing environments. The device supports video signals up to 4K@60Hz 4:4:4 with a bandwidth of 18Gbps and is compliant with HDMI 2.0b and HDCP 2.2. With seamless source switching technology, users can smoothly switch presentations and materials without interruptions, and the multiview feature allows simultaneous display of multiple sources on a single screen.

The switcher offers five video inputs including two USB-C ports and three HDMI inputs. The USB-C ports support DisplayPort Alt Mode for audio and video signal transmission, USB 2.0 transmission, 100Mbps Ethernet connection, and charging of the source device with up to 60W. This allows users to connect laptops with a single USB-C cable, simplifying installation and daily operation of the system.

Utilizing HDBaseT 3.0 technology enables the transmission of uncompressed 4K signals up to 40m or 1080p signals up to 70m using a single Cat6a cable. The HDMI and HDBaseT outputs operate in parallel, allowing simultaneous signal transmission to both local and remote displays. The integrated PoE over HDBaseT feature allows powering the receiver without the need for an additional power supply on the receiving side.

The ALF-SCK51TS-D supports local USB 2.0 KVM switching and USB 2.0 transmission over HDBaseT, enabling the connection of USB peripherals and cameras used during video conferences. Additionally, the device is equipped with 2x2 Dante Audio interfaces, allowing integration with existing Dante-based audio systems.

Functionality

• seamless switching of 5 signal sources
• multiview feature allowing display of multiple sources on one screen
• supports resolutions up to 4K@60Hz 4:4:4
• compliant with HDMI 2.0b and HDCP 2.2
• 2 USB-C inputs
• 3 HDMI inputs
• 1 analog audio input
• 1 2-channel Dante Audio interface
• USB Host port
• 2 USB Peripheral ports
• HDMI output and parallel HDBaseT output
• analog audio output
• 2-channel Dante Audio output
• automatic or manual source switching mode
• supports DisplayPort Alt Mode via USB-C
• USB 2.0 transmission via USB-C
• 100Mbps Ethernet connection via USB-C
• charging of USB-C devices up to 60W
• local USB 2.0 KVM switching
• USB 2.0 transmission over HDBaseT 3.0
• USB Host ports on both transmitter and receiver sides
• uncompressed 4K transmission up to 40m via Cat6a
• uncompressed 1080p transmission up to 70m via Cat6a
• PoE over HDBaseT for powering the receiver
• embedding and extracting audio signals
• audio DSP with gain, correction, volume level, and delay adjustments
• Dante Audio 2x2
• control of external devices via CEC and RS232
• EDID management
• control from front panel, remote, RS232, TCP/IP, and Web GUI
• HDBaseT receiver included

Features

• HDMI 2.0b
• HDCP 2.2
• DisplayPort 1.2
• video bandwidth: 18Gbps
• USB bandwidth up to 480Mbps
• network bandwidth: 100Mbps
• supported input resolutions up to 4K2K@60Hz 4:4:4
• supported output resolutions up to 4096×2160p60
• input color depth: 8/10/12-bit
• output color depth: 8-bit
• supported color spaces RGB, YCbCr 4:4:4, YCbCr 4:2:2, and YUV 4:2:0
• audio format: LPCM 2.0
• audio sampling frequency: 48kHz
• 4K60 transmission up to 40m
• 1080p and 4K30 transmission up to 70m
• HDR support on input
• input audio impedance: 10kΩ
• output audio impedance: 330Ω
• maximum input audio level: 8.2dBu (2Vrms)
• maximum output audio level: 8.2dBu (2Vrms) for balanced signal and 2.2dBu (1Vrms) for unbalanced signal
• audio bandwidth: 20Hz–20kHz
• audio sync delay adjustment: from 0 to 50ms

Josawa ALF-SCK51TS-D is a complete solution for managing audio and video signals in modern conference spaces. The combination of seamless switching, USB-C support, HDBaseT transmission, Dante Audio integration, and extensive control capabilities makes the device ideal for professional AV installations requiring reliability, flexibility, and high-quality signal transmission.