Gefen ext-hdmi-444 Manuale Utente

Extended display identifi cation data (EDID) is a data structure provided by a display to 
describe its capabilities to any source that asks for it. The EDID includes manufacturer 
name, product type, timings supported by the display, display size, luminance data, (for 
digital displays only) pixel mapping data, supported audio channels and formats. This 
information is used by the source to cater its output to resolutions and audio formats 
that are supported by the display.

Additional EDID modes are available and confi gured using a combination of dip 
switches 1, 2, and 5. Please refer below for the different EDID modes.

To access the Dip Switches, remove all screws from the bottom and sides of the Gefen 
unit. Remove the hex screw heads from each side of the RS-232 port and above each 
HDMI connector. Carefully slide the unit apart. The 8 Bank of Dip Switches are located 
on the main PCB. Once adjustments are complete, slide the unit back together and 
replace all removed screws.

EDID Mode 0 (Switch 1=OFF Switch2=OFF Switch5=ON)
-EDID is copied from the fi rst HDMI port

EDID Mode 1 (Switch 1=ON Switch2=OFF Switch5=ON)
-Same as Mode 0 and adds basic audio support

EDID Mode 2 (Switch 1=OFF Switch2=ON Switch5=ON)
-Same as Mode 0 and adds full audio support

EDID Mode 3 (Switch 1=ON Switch2=ON Switch5=OFF)
-EDID is generated based on the common video and audio features of all of the 
connected devices

EDID Mode 4 (Switch 1=OFF Switch2=ON Switch5=OFF)
-Same as Mode 3 and adds basic audio support

EDID Mode 5 (Switch 1=ON Switch2=OFF Switch5=OFF)
-Same as Mode 3 and adds full audio support

EDID Mode 6 (Switch 1=OFF Switch2=OFF Switch5=OFF) DEFAULT
-EDID is generated based on the common video features of all of the connected 
devices and the combined audio features of all of the connected devices