Allion recently launched a SCDC/EDID controller (model AJSC-1); a tool that controls and emulates the SCDC/EDID registers of HDMI devices.

The AJSC-1 controller is designed for HDMI 2.0/1.4b CTS electrical testing. This test fixture can be managed through a serial interface using terminal emulator software such as Tera Term. Windows-based GUI software is also available (see screenshot below). 

ALLION AJSC-1 : Product Function

Two control modes: Sink and Source (see figure below)

– Sink device testing simulates a HDMI source device (SCDC/EDID)
– Source device testing simulates a HDMI sink device with access to any SCDC/EDID data
– HPD and +5V Power input/output can automatically switch according to different modes
– This test fixture also has HPD and +5V Power control functionality


ALLION AJSC-1 : Features

Easy and Flexible to Edit Parameters

– Device kit includes software to assist users immediately read HPD, +5V Power, and Scramble status
– One-Click activation for Scramble function and also simulate PC EDID file, e.g. binary files 


Multiple Built-In EDIDs Preset

– Multiple built-in EDIDs for HDMI 2.0/1.4 electrical compliance testing, including DVI to 6G support
– Easy to connect to your test fixture
– For Source DUT, it is easier to output expected video format
– Easy to load and customize your EDID file


Light, Small, Easy to Use

– Allion AJSC-1 is connected by USB, so you don’t need to prepare an external (5V) power supply
– Connect to PC or Oscilloscope by USB and choose operation mode to begin without any complex setup


Physical Dimensions

– Size: W 82 mm x H 29 mm x D 81 mm (Case Only)
– Weight: 120 g (AJSC-1 Only) 


For more details about the AJSC-1 SCDC/EDID controller, please contact us:


This entry was posted in . Bookmark the permalink.