Beckhoff CB4055 Manual do Utilizador descarregar pdf (Página 17)

System/SM-Bus Chapter: Connectors

Beckhoff New Automation Technology CB4055 page 17

3.3 System/SM-Bus

Both SM-Bus signals, and signals for PS/2 keyboard, PS/2 mouse and speaker are provided through a

2x9pin connector (FCI 98424-G52-18LF, mating connector e.g. FCI 90311-018LF). For the #PSON

signal, please refer to the cautionary note in the chapter "Power Supply" (p. 16).

Pinout 2x9pin connector:

Description Name Pin Name Description

speaker to 5V SPEAKER 1 10 GND ground

reset to ground RSTBTN# 2 11 N/C reserved

keyboard data KDAT 3 12 KCLK keyboard clock

mouse data MDAT 4 13 MCLK mouse clock

battery BATT 5 14 VCC 5 volt supply

power supply on PS-ON# 6 15 SMBCLK SMB clock

standby supply 3.3V S3.3V 7 16 SMBDAT SMB data

power button PWRBTN# 8 17 SMBALERT#

SMB alert

ground GND 9 18 3.3V 3.3 volt supply

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 84 85

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Beckhoff CB4055 Manual do Utilizador Página 17