Gefen HDSDI-2-DVIL, Руководство пользователя, Страница: 9 / 13

Note: For a true RS422 connection, you can use an adapter made by KK Systems (Part
Number K422-99). This adapter connects to the RS232 port on the PC and provides
an RS422 connection on the other side. To connect the K422-99 to the HD-SDI to DVI
Loop, use a standard RS422 cable (Male DB9 to Male DB9 pin to pin). A true RS422
connection allows for a better connection and longer cables.
WIRING OF THE RS422-RS232 CABLE
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The HD-SDI to DVI Loop has an RS422 port that can be used to view the current set-
tings of the unit. To connect the RS422 port to a PC you need a special RS422-RS232
cable that can be purchased from Gefen by contacting support@gefen.com You can
also make the cable using the wiring diagram shown at the end of this document.
• Connect COM1 of the PC to the HD-SDI to DVI Loop using the RS422-RS232 cable
• Run HyperTerminal on your PC and make a direct connection on COM1
• Connection Properties should be set to: 38400 Bauds, 8 Data Bits, Odd Parity, 1 Stop
Bit, and None Flow Control.
When you power up the HD-SDI to DVI Loop, plug or unplug the HD-SDI, SDI or DVI
input or DVI output. Messages will be displayed in the HyperTerminal window indicat-
ing the input and output formats as well as the native monitor resolution reported by the
EDID message.