Chapter:
Connectors
System
page 16
Beckhoff New Automation Technology
CB3051
4.3 System
Some typical signals for system control are provided through a 2x9 pin connector (JST B18B-PHDSS,
mating connector: PHDR-18VS). This connector combines signals for power button, reset, keyboard,
speaker, and several LEDs such as harddisk LED, touch screen LED, suspend LED, and three additional
LEDs which are driven by GPIOs. Of these three GPIO-LEDs, LED1 and LED2 are already provided with
a series resistor. As can be seen from the pinout table below, corresponding signals are often placed vis-
à-vis or at least near to each other.
Description
Name
Pin
Name
Description
ground
GND
1
10
PWRBTN#
on/suspend button
ground
GND
2
11
RESET#
reset to ground
LED touch screen
TOUCHLED 3
12
3.3V
3.3 volt supply
LED suspend / ACPI
S-LED
4
13
S3.3V
standby supply 3.3 volt
LED harddisk
HDLED
5
14
3.3V
3.3 volt supply
LED GPIO device
LED1
6
15
3.3V
3.3 volt supply
LED GPIO device
LED2
7
16
LED3
LED GPIO device
speaker to 5 volt
SPEAKER
8
17
KDAT
keyboard data
standby supply 5 volt
(S)VCC
9
18
KCLK
keyboard clock
Summary of Contents for CB3051
Page 2: ......
