DVI-OPT-220-Pro series – User's Manual 26
View EDID Header
Description: Shows basic information about EDIDs in the memory.
Example
Command
→
Response ●
←
Explanation: Shows the EDID from location D2.
Legend:
<loc> Result Response
Fxx
Factory EDID query header for one EDID
Uxx
User EDID query
Dxx
Dynamic EDID query
Exx
Emulated EDID query
F*
All Factory preset EDIDs headers for all Factory EDIDs
U*
All User saved EDIDs headers for 49 user EDIDs
D*
All Dynamic EDIDs headers from all outputs
E*
All Emulated EDIDs headers from all inputs
PNPID code Preferred resolution Name
The three letter abbreviation of
the manufacturer.
The resolution and refresh rate
stored in the preferred detailed
timing block.
The name of display device
stored in product descriptor.
Download EDID Content from a Location
Description: EDID hex bytes can be read directly. The extender will issue the whole content of the EDID
Example
Command
→
Response ●●●.. ●
←
(EB#F1 00 FF FF FF FF FF FF 00 32 F2 00 00
00 .. .. .. 00 00) CrLf
Legend:
Explanation: Full EDID from memory location F1 is downloaded.
Upload EDID Content to a Location
Description: EDID hex bytes can be written directly to the user programmable memory locations.
Sequence
Step 1. {WL#<loc>}
Step 2. Extender responds that it is ready to accept EDID bytes with (E_L_S)CrLf
Step 3. Send 1 block of EDID (1 block consist of 8 bytes of hex data represented in ASCII format) with
command {WB#<num>●<B1>●<B2>●<B3>●<B4>●<B5>●<B6> ●<B7>●<B8>}
Step 4. The extender acknowledges with response (EL#<num>)
Step 5. Repeat steps 3 and 4 to send the remaining 31 blocks of EDID (32 altogether)
Step 6. After the last acknowledge, the extender indicates that the EDID status changed by sending (E_S_C) CrLf
Example
Command
→
Response (E_L_S)CrLf
←
(E_L_S) CrLf
Command ●●●
●●●●●
→
Response
←
(EL#1) CrLf
Command ●●
●●●
●●●
→
Response
←
(EL#2) CrLf
… …
Command ●●
●●●
●●●
→
Response
←
(EL#32) CrLf
Response (E_S_C) CrLf
←
(E_S_C) CrLf
Legend:
Explanation: Full EDID uploaded to memory location U3.
INFO: The uploaded EDID content is checked and saved only if it is a valid EDID.
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