System Reset Connector - Matrox Helios Series Installation And Hardware Reference

126 Appendix B: Technical information
Pin Signal
A20 GND
A21 P1_LVDS_CLK_OUT+
A22 P0_OPTO_AUX_IN0-
A23 P0_OPTO_AUX_IN1-
A24 OPTO_AUX_IN0-
A25 OPTO_AUX_IN1-
Description
Ground.
Clock output for acq. path 1
(positive).
Opto-isolated auxiliary
input 0 for acq. path 0
(negative).
Opto-isolated auxiliary
input 1 for acq. path 0
(negative).
Opto-isolated auxiliary
input 0 for an unspecified
acq. path (negative).
Opto-isolated auxiliary
input 1 for an unspecified
acq. path (negative).

System reset connector

The system reset connector is standard, 0.1" spacing, 8-pin male connector, used
to reset the motherboard if the reset button is pressed or the Watchdog circuitry
of Matrox Helios detects abnormal Host inactivity. The system reset connector's
pin assignment is as follows. Note that pin 1 is denoted with the triangular etching
in the image.
Pin pair Pin
A 1
2
B 1
2
C 1 and 2
D 1 and 2
Pin Signal
B20 P1_LVDS_CLK_OUT-
B21 GND
B22 P0_OPTO_AUX_IN0+
B23 P0_OPTO_AUX_IN1+
B24 OPTO_AUX_IN0+
B25 OPTO_AUX_IN1+
C
A B
Matrox Helios eCL/XCL
Signal Description
RESET_MB Reset signal output (usually to motherboard).
GND_MB Motherboard active reset level (usually ground).
RESET_BUTTON Reset signal input (usually from Reset button).
GND_MB Motherboard active reset level (usually ground).
Reserved.
Reserved.
Description
Clock output for acq. path 1
(negative).
Ground.
Opto-isolated auxiliary input 0
for acq. path 0 (positive).
Opto-isolated auxiliary input 1
for acq. path 0 (positive).
Opto-isolated auxiliary input 0
for an unspecified acq. path
(positive).
Opto-isolated auxiliary input 1
for an unspecified acq. path
(positive).
D