Matrox Helios Series Installation And Hardware Reference page 37

BNC label Signal on DVI connector 0
VID IN 0 P0_VID_IN_A
VID IN 1 P1_VID_IN_A
TRIG 0/2 P0_TTL_AUX(TRIG)_IN
EXP 0/2 P0_TTL_AUX(EXP)_OUT
VID IN 2 P2_VID_IN_A
VID IN 3 P3_VID_IN_A
TRIG 1/3 P1_TTL_AUX(TRIG)_IN
EXP 1/3 P1_TTL_AUX(EXP)_OUT
Important
Connect the cable's DVI connector to one of the DVI connectors on Matrox
Helios eA/XA. Then, connect the BNC connectors as follows:
Signal on DVI connector 1
P0_VID_IN_B
P1_VID_IN_B
P2_TTL_AUX(TRIG)_IN
P2_TTL_AUX(EXP)_OUT
P2_VID_IN_B
P3_VID_IN_B
P3_TTL_AUX(TRIG)_IN
P3_TTL_AUX(EXP)_OUT
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.
Connecting video sources
Expected input, with respect to the DVI
connector.
Video input A or B for path 0 (AC or DC)
(monochrome or red input).
Video input A or B for path 1 (AC or DC)
(monochrome or green input).
TTL trigger input for PSG 0 or 2.
TTL exposure output for PSG 0 or 2.
Video input A or B for path 2 (AC or DC)
(monochrome or blue input).
Video input A or B for path 3 (AC or DC)
(monochrome input).
TTL trigger input for PSG 1 or 3.
TTL exposure output for PSG 1 or 3.
37