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 DVI to HD-SDI
Conversion Box, 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
6
The DVI to HD-SDI Conversion Box has an RS422 port that is used to upgrade the fi rm-
ware of the unit. You can make the cable using the wiring diagram shown at the end of
this document or purchase a cable form KK Systems.