User`s manual

7 RS422 Port
The HDVI-10 has an RS422 port that can be used to view the current settings of the unit. To
connect the RS422 port to a PC you need a special RS422-RS232 cable that can be purchased from
Doremi by contacting [e-mail] You can also make the cable using the wiring
diagram shown at the end of this document.
• Connect COM1 of the PC to the HDVI-10 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 HDVI-10, plug or unplug the SDI input or DVI output. Messages will be
displayed in the HyperTerminal window indicating the input and output formats as well as the
native monitor resolution reported by the EDID message.
Since the HDVI-10 does not have OSD capabilities, this is the only way to verify the HDVI current
settings.
Auto Mode shows the input format in the message, other modes don’t (see example below)
• “A” or “B” after the input format designates the input channel.
• “p” after the output format designates a progressive output mode.
• “PT” after the output format designates a pass through mode.
Typical output in Auto Mode (1280x1024 LCD) Typical output in Non Auto Mode (1280x1024LCD)
IN 480iA; OUT 1280x1024p; SC 1280x1024 OUT 1280x1024p; SC 1280x1024
pix_clk : 10800 pix_clk : 10800
activ_h : 1280 activ_h : 1280
blank_h : 408 blank_h : 408
activ_v : 1024 activ_v : 1024
blank_v : 42 blank_v : 42