DVIGear DVI-7320 Podręcznik użytkownika - Strona 8
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Drukuj stronęDVI-7320-TX
5.0
OPERATING THE UNIT
5.1
DDC Communications
In Real DDC Mode, the EDID of the connected display is presented to the DVI
source device via the DDC link between the DVI-7320-Tx and DVI-7320-Rx
units. Since DDC communications are based on I2C technology, the maximum
cable length for the DDC link (CAT5 cable) is 100 meters (328 ft.) as this is the
limit of I2C extenders.
In DDC Emulation Mode, the connected display's EDID can be stored in an EDID
memory device located in the DVI-7320-Tx unit. When the DVI source boots,
up it reads the EDID information stored in the DVI-7320-Tx in the same way as if
the display were connected directly to it. The DDC Emulation Mode eliminates
the need for the copper DDC link; hence it allows much longer cable runs (up to
500 meters) to be used.
5.2
Programming the EDID Memory
1.) To program the EDID memory, remove all connections to the
DVI-7320-Tx unit.
2.) Set the DDC switch on the DVI-7320-Tx to the Emulation position.
3.) Connect a DVI cable between the DVI-7320-Tx and the display.
4.) Connect the External AC Power Adapter to the DVI-7320-Tx.
5.) After a brief delay, the red PWR LED will flash rapidly for 1-2
seconds, then turn OFF for a moment and finally turn back ON.
The EDID has now been successfully stored in the DVI-7320-Tx.
DVI-7320-RX
DVI-7320-PS
(optional power supply)
1x 7-strand Multi-Mode
LC Optical Cable
Dual-Link
DVI Cable
-6-
Dual-Link
DVI Cable
CAT5 Cable
PC
DVI-7320-PS
(included power supply)
Display Device
(e.g. Monitor)