Hercules-EBX CPU User Manual V1.02
Page 29
4.21 CPU Fan Connector – J27
1
Fan RPM
2
Ground
3
+5V
Table 22: J27 – CPU Fan Connector Pinout
Signal Name
Definition
Fan-RPM
TTL signal input that pulses with each revolution of the fan
+5V, Ground
Power Supply for optional CPU Fan (if necessary)
Connector Part Numbers
J27 Connector on CPU board:
Heilind Electronics
89400-0320
J27 Mating Cable Connector:
JST
PHR-3
4.22 LCD Backlight Connector – J28
1
+12V
2
Control
3
Ground
Table 23: J28 – LCD Backlight Connector Pinout
Signal Name
Definition
Control
Output signal (from Hercules-EBX) to allow power-down of backlight
+12V, Ground
Power Supply for LCD Backlight assembly
J28 provides the Backlight power and control for the optional LCD panel. See J24 (above) for
details on the LCD data interface. Note that the +12V supply will be removed when the system is
powered down; the control signal is to allow the system to power-down the backlight when the
system enables monitor-power-down during its power management control.
Connector Part Numbers
J28 Connector on CPU board:
Digi-Key Corp. A19470
J28 Mating Cable Connector:
Molex
22-01-3037