Analog Video Input Connectors - Matrox Helios Series Installation And Hardware Reference

128 Appendix B: Technical information
Important
Pin Signal
1 P1_LVDS/TTL_VSYNC_IO-
2 P1_LVDS/TTL_VSYNC_IO+
3 GND
4 P0_LVDS/TTL_VSYNC_IO-
5 P0_LVDS/TTL_VSYNC_IO+

Analog video input connectors

The two analog video input connectors are DVI dual-video-input female
connectors. They are used to receive video input signals and transmit/receive
timing, synchronization, and communication signals between the video source
and the frame grabber.
9
To connect the output of a display board (with a DVI output connector) to the
analog video input connectors, you can use a standard cable (DVI-I to DVI-I or
DVI-A to DVI-A cable) if the display board encodes the synchronization signals
on the video data (sync on green). Otherwise, you must use the Matrox
DVI-TO-8BNC/O cable or a custom cable that re-routes the synchronization
signals to the appropriate pins.
Note that synchronization and clock signals can be either LVDS or TTL; when
TTL, they are expected on the pin denoted as positive.
The pinout for DVI connector 0 is as follows:
Description
VSYNC input/output for acq. path 1
(negative).
VSYNC input/output for acq. path 1
(positive).
Ground.
VSYNC input/output for acq. path 0
(negative).
VSYNC input/output for acq. path 0
(positive).
1 8 C1 C2
C3 C4
17 24
Pin Signal
17 P1_LVDS/TTL_CLK_IO-
18 P1_LVDS/TTL_CLK_IO+
19 GND
20 P0_LVDS/TTL_CLK_IO-
21 P0_LVDS/TTL_CLK_IO+
C5,C6,M1,M2
Description
Clock input/output for
acq. path 1 (negative).
Clock input/output for
acq. path 1 (positive).
Ground.
Clock input/output for
acq. path 0 (negative).
Clock input/output for
acq. path 0 (positive).