The KDS-EN4 is a MJPEG-4 encoder with a resolution of up to HD 4K60 (4:2:0) with HDCP 2.2, as well as audiosignals, RS-232, IR, USB. All signals are encoded and transmitted as an IP stream in real time using the RTSP protocol in Unicast (one-to-one) or Multicast (one-to-many) modes. Ethernet 10/100/1000BaseT is supported. The role of receivers can be taken on by KDS-DEC6 decoders.

Technical specifications

Case size	MegaTOOLS
Inputs	1 - HDMI, type A (socket) 1 - audio player, MINIJACK 3.5 mm connector (socket) 1 - IR, Minijack connector 3.5 mm (socket)
Outputs	1 - Ethernet, RJ45 connector (socket) 1 - IR, MINIJACK 3.5 mm connector (socket)
Ports	1 - USB (Host), type B (socket) 1 - RS-232, terminal block
Maximum Resolution	4K, 60 Hz
Bitrate	Peak for 4K: 850 Mbps Medium for 4K: 350 Mbps Middle for 1080p: 250 Mbps
Ethernet Transfer Rate	10/100/1000 Mbps
Streaming protocols	RTSP (Unicast, Multicast)
Video encoding	MJPEG (Motion JPEG)
HDCP specifications	2.2
Video processing options	Scaling, cropping images at the release of decoder
IP video stream permissions	640x350 640x400 640x480 720x480 720x576 768x480 800x600 848x480 960x600 1024x384 1024x768 1064x600 1152x720 1152x864 1224x768 1280x720 1280x768 1280x800 1280x960 1280x1024 1360x768 1366x768 1400x1050 1440x480 1440x576 1440x900 1536x960 1600x900 1600x1050 1600x1200 1680x1050 1704x960 1728x1080 1792x1344 1856x1392 1864x1050 1920x1080 1920x1200 3840x2160 4096x2160
frame rate	60 Hz
Audio codecs	AAC-LC
Embedded audio formats	LPCM 2/5.1/7.1, DTS 5.1, DTS-ES, DTS-HD High Resolution Audio, DTS-HD Master Audio, Dolby Digital 5.1, Dolby Digital Plus, Dolby TrueHD
IR carrier frequency	20–60 kHz
Twisted pair extension	up to 100 M.
Control	Buttons on the front panel (reboot, channel selection), Open API, Kramer Control, Kramer Network, Built-in Web Page
Indication	Power, Status, Communication, Display: Channel Number
Operating temperature range	0…+40 °C
Storage temperature range	−40…+70 °C
Relative humidity	10 ... 90 % (without condensation)
Power	PoE or 48 V, 370 mA from external power supply
Size (WxDxH)	190 x 103 x 23 mm
Rackmount	Optional adapter
Weight	0,55 kg