Default ddc modes (hdcp compliant models), Remote dynamic mode, Remote static mode – Thinklogical Q-4300 Video Modules Manual User Manual
Page 53: Pass-thru mode, Local static mode, Default edid table
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Q - S e r i e s V i d e o M o d u l e s P r o d u c t M a n u a l , R e v . I
Page 53
Default DDC Modes (HDCP Compliant Models):
Remote Dynamic Mode
The unit acts as a direct connection between the RX and TX. In this mode DDC data is read at the RX and sent to
the TX. Once verified at the TX the information is written into a PROM on the TX and provided to the CPU video
card. The RX will not send DDC data to the TX unless a different display is connected to the RX.
Advantage:
Allows CPU video card to boot when there is no fiber connection to the RX.
Limitations:
No communication link from the CPU to the display. Remote Dynamic prevents the use of HDCP or
monitor configuration /color tuning.
Remote Static Mode
Remote Static Mode is a subset of Dynamic Mode in that once a transfer from the RX to the TX is completed
successfully, no other transfer will be made unless specifically requested. The DDC data stored in the TX PROM
will not change regardless of display changes.
Advantage:
Allows the user to acquire and use an EDID table regardless of changes in connection at the RX.
Limitations:
No communication link from the CPU to the display. Remote Static prevents the use of HDCP or
monitor configuration/color tuning. This may result in no video if a display with lower resolution capability is
subsequently connected.
Pass-Thru Mode
Does not work with HDCP compliant modules.
Local Static Mode
Local Static mode operates in the same manner as Remote Static mode, except that the EDID table is read
from a monitor plugged into the local port of the TX. The TX will read the DDC from the locally connected
monitor until it reads a valid EDID table. The table will then be stored on the TX and presented to the CPU.
Advantages:
The TX does not need to be connected to the video card or RX. The EDID table can be loaded
before the TX is installed.
Limitations:
No communication link from the CPU to the display. This prevents the use of HDCP or monitor
configuration/color tuning and may result in loss of remote video if a display with lower resolution capability is
connected to the RX.
Default EDID Table
Two EDID Tables are present. One supports resolutions of 1920x1200 and the other supports 1920x1080.
Advantage:
Sends a valid EDID table to the CPU to boot the graphics adapter .
Limitations:
Default EDID table may not support required resolutions.