Chapter:
Connectors
Internal Connectors
page 44
Beckhoff New Automation Technology
CB1051
3.4.10 SMB/I2C
The CB1051 can communicate with external devices via the SMBus protocol or the I2C protocol. The
signals for these protocols are available through a 2x5 pin connector (JST B10B-PHDSSLFSN, mating
connector: PHDR-10VS). The SMBus signals are processed by the ICH chip (Intel 82801), the I2C signals
are processed by the SIO1 unit (Winbond W83627).
Pinout SMBus/I2C connector:
Description
Name
Pin
Name
Description
3.3 volt supply
3.3V
1
6
GND
ground
SMBus clock
SMBCLK
2
7
SMBDAT
SMBus data
SMBus alarm
SMBALRT# 3
8
SVCC
standby supply 5V
I2C bus clock
I2CLK
4
9
I2DAT
I2C bus data
5 volt supply
VCC
5
10
GND
ground
Summary of Contents for CB1051
Page 2: ......
