Comprehensive CSW-DVI440A - Manual (Page 8)

DVI Matrix Switcher
5
6. Operation of the EDID management
CSW-DVI440A matrix switcher is built in the EDID management database. The EDID management can
be automatically shake hand, or manual exchanged, and factory restore.
6.1 EDID automatically shake hand
The CSW-DVI440A matrix switcher is built in the EDID data, which can communicate with the
displayers and video source automatically. When the displayers or video sources are connected to the
CSW-DVI440A matrix switcher, they will share the EDID/DDC information with the matrix switcher.
The communication solution is like this:
The CSW-DVI440A EDID database includes most popular displaying data, but not all the displaying
data because of the capability and firmware limitation. So, we can manually refresh the EDID data to
update the EDID data base.
6.2 EDID management of CSW-DVI440A
The RS232 commands for EDID management of CSW-DVI440A include: ”EDIDMon.” & ”EDIDMoff.”
(Please notice the text-transform, and the dot in behind.)
These two commands only accept by CSW-DVI440A, in the other CSW-DVI440A matrix models they
are unavailable.
6.2.1 Erase and Refresh the EDID data
When the “EDIDMOn.” is sent, CSW-DVI440A will auto copy the mix EDID data of all outputs. It means
the CSW-DVI440A will erase the old EDID data, and copy the EDID data which all output displays have.
6.2.2 EDID restore to factory default
When we send the “EDIDMoff.” to the CSW-DVI440A matrix switcher, it will recover the factory default
EDID data.