3 system/sm-bus, System/sm-bus, P. 18 – BECKHOFF CB4063 User Manual
Page 18
Chapter: Connectors
System/SM-Bus
page 18
Beckhoff New Automation Technology CB4063
3.3 System/SM-Bus
Both SM-Bus signals, and signals e.g. speaker are provided through a 2x10pin connector (FCI
98424-G52-20LF, mating connector e.g. FCI 90311-020LF). For the #PSON signal, please refer to the
cautionary note in the chapter "Power Supply" (page 17).
Pinout 2x10 system connector:
Dsecription
Name
Pin
Name
Description
ATX Powerbutton
ATXPWRBTN
#
1
11
GND
ground
reset to ground
RSTBTN#
2
12
GND
ground
battery
BATT
3
13
GND
ground
speaker
SPEAKER
4
14
VCC
5V supply
SATA LED
SATALED#
5
15
3.3V
3.3V supply
Rot / LED0
RED/LED 0
6
16
GREEN/LED1 green / LED1
Blau / LED2
BLUE/LED2
7
17
S3.3V
standby supply 3.3V
PS-ON
PSON#
8
18
S3.3V
standby supply 3.3V
Systembus clock
SMB-CLK
9
19
SMB-ALERT
Systembus alert
Systembus data
SMB-DAT
10
20
GND
ground