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Pin
Signal
1
LVDS/TTL_AUX_IN7+
2
P3_LVDS/TTL_AUX_OUT1+
3
GND
4
P2_LVDS/TTL_AUX_OUT1-
External auxiliary I/O connector 0
External auxiliary I/O connector 0 is a high-density DB-44 female connector,
located on the bracket of the LVDS cable adapter board. This connector interfaces
with the 50-pin internal auxiliary I/O connector on the board. This connector is
used to transmit/receive auxiliary signals; these signals can be used to route
synchronization, trigger, exposure, or user-defined signals.
The pins for auxiliary signals carry unidirectional signals, unlike those for
synchronization signals on the DVI connector. This means that using this
connector, the board can both transmit and receive synchronization signals at the
same time.
In addition, all the signals can be either LVDS or TTL; when TTL, they are
expected on the pin denoted as positive.
The pinout for this connector is as follows. The description of each (positive)
auxiliary signal states whether the signal is specific to an independent acquisition
path and the type of signals that can be routed onto it.
15
30
44
Description
Auxiliary input 7 for an unspecified acq. path (positive).
Signals only supported for acq. path 0, 1, and 2: user input 9.
Signals only supported for acq. path 3: user input 3, timer clock, VSYNC input, or quadrature input
bit 1.
Signals supported for any acq. path: trigger input 3.
Auxiliary output 1 for acq. path 3 (positive).
Supported signals: user output 1, exposure output 1, or VSYNC output.
Ground.
Auxiliary output 1 for acq. path 2 (negative).
See pin 20 for more information.
Connectors on Matrox Helios eA/XA
1
16
31
131
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