1. Home
  2. /
  3. E20 compact encoder (HD-SDI)

E20 compact encoder (HD-SDI)


E20 – compact H.264 encoder module
The E20 features 2 mini BNC connectors for HD SDI in (on the left) and HD SDI loop through out (on the right). It features the same encoding performance and the same firmware as its full size companion the E120. It is just significantly smaller and lighter. It may be equipped with various add-on board options. Starting from the simple 38116 add-on board for just the Ethernet connection with or without RJ45 connector.


E20 – compact H.264 encoder module with wifi option
Here the E20 compact H.264 encoder module is equipped with the 38139 wifi add-on module. This add-on features the Carambola 2 wifi module (400MHz MPIS processor, 64MB RAM, 16 MB Flash, openWRT based). Alternatively other add-on modules may be plugged on top. Please see the add-on page for further details.


Technical details

  • H.264 video encoder with HD SDI input and loop through output
  • RTSP live stream (low latency with selected players)
  • recording .mp4 file to USB device of SD card
  • 10/100 Ethernet to connect to IP network (live stream and control)
  • optional: add-on modules for various add-on functions
  • optional: transmuxing to other streaming protocols with WiFi option (Carambola 2 or others)

Audio and video encoding

  • H.264 codec up to level 4.1 (baseline, main, and high profiles)
  • video encoding up to 720p50/60, 1080i50/60 or 1080p24/25/30
  • streaming: RTSP stream (128 to 20000 kbit/s)
  • live change of bandwidth, GOP size and resolution while streaming
  • power: 12V typical (7 .. 17V) – various power options depending on the add-on module mounted
  • size: 49 x 62 mm
  • mounting: extra 7mm mounting hole
  • weight: 20 gr (just the encoding module)


  • Linux based
  • control via integrated web interface
  • HTTP request based API (low latency: 100ms typical)
  • RTSP video streaming (low latency with selected players)
  • full access to system, video and encoding parameters


  • E20 rev 2 (38140-2) in production now