Gefen 8x8 EXT-DVI-848 - Manual (Page 23)

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APPENDIX B
The 8X8 DVI Matrix uses RS-232 serial communication for access to a number
of features. Please us this section for EDID storing, calling, and routing functions.
REMOTE FUNCTION
The remote functions are used to modify the setting of the product, such as: Input
to output routing, EDID memory management etc. These functions are available
only via serial communications on the RS-232 port.
HELP FUNCTION
To reference the commands listed in the following pages, simply type HELP and
then enter key to display a list of the available commands.
EDID STORAGE LOCATIONS
There are 2 storage locations for EDIDs.
The main storage location is located right in front of each input. These eight
locations will transmit an EDID directly to the source devices connected to each
input. These eight locations will be referred to as LOCAL in the following section.
The second storage location is an EDID storage bank that can support up to
seven EDIDs. Any EDID in this bank can then be uploaded to some or all of
the LOCAL EDID storage locations for use by the source devices. This storage
location will be referred to as the EDID BANK in the following section.
Modify By Shortcut
Switching Command
First character indicates the output monitor. Second character indicates the input
number.
Example: ‘A5’ routes input 5 to output monitor A
Matrix Status Command
The ‘M’ or ‘m’ command will return the current routing state.
Shortcut Routing Command
This command sets the matrix routing state according to a preset routing state.
First character is ‘S’ or ‘s’, second character indicates the state that is set by
function #PSASRS or #MSASRS (please see page 24)
Setting Function Menu
The ‘P’ or ‘p’ command will return the settings function menu.
Modify By Function
The syntax for each function is always the same. The ‘#” character is the start
fl ag followed by the function name in capital letter and a space. The space tells
the MCU that the function name is ending. Finally, the parameters required for
each function are separated by a space and ending by the ‘\r’ character or “Enter”