3 power supply – BECKHOFF CB3056 User Manual
Page 15
Power Supply
Chapter: Connectors
Beckhoff New Automation Technology CB3056
page 15
3.3 Power Supply
The power supply of the hardware module is realized via a 2x8-pin connector (Molex PS 43045-16xx,
mating connector: Molex PS 43025-16xx). The 12 volt supply is needed for PCI-Express cards and for the
fan connector. COM3 RXD and TXD can also be used for connecting a second power supply unit, e. g.
for UPS. As an ordering option SMBus signals SCL/SDA can be provided (replacing COM3 TXD/RXD).
Description
Name
Pin
Name
Description
COM3 transmit data
TXD
1
9
RXD
COM3 receive data
PSU on
PS-ON
2
10
RESET#
PSU reset
powerbutton PSU
PWRBTN#
3
11
SVCC
standby-supply 5V
12 volt supply
12V
4
12
12V
12 volt supply
ground
GND
5
13
GND
ground
ground
GND
6
14
GND
ground
5 volt supply
VCC
7
15
VCC
5 volt supply
5 volt supply
VCC
8
16
VCC
5 volt supply