Connections
CB3067
15
Version: 1.0
6.2
Power input (P1300)
The connection for the power supply of the CB3067 is implemented as a 2x10-pin housing connector.
The 12 V supply is required for the operation of PCI-Express cards and the fan connections. COM RXD and
TXD can also be used for your own power supply unit, e.g. for the UPS function.
Communication takes place via SMBus (SMB-CLK/SMB-DAT).
Fig. 3: CB3067 power input (P1300)
Pin assignment power input
Description
Name
Pin
Name
Description
SMBus clock signal/
COM transmit data
SMB_CLK
COM.TXD
1
11
SMB_DAT/
COM.RXD
SMBus data/
COM receive data
'Power Supply On' input
for switching on the
output voltages:
Low (0 V) = switch on
voltages
High (5 V or open
contact) = switch off voltages
PS_ON
2
12
ATX
PWRGOOD
'ATX Powergood' output
signals to the PC that all
voltages are switched on:
Low (0 V) = voltage not
ok
Open Drain = voltage ok
Power button output for
switching the connected PC
on and off
ATX
PWRBTN#
3
13
S VCC
S5 V supply voltage
12 V supply voltage
12 V
4
14
12 V
12 V supply voltage
Ground
GND
5
15
GND
Ground
Ground
GND
6
16
GND
Ground
5 V supply voltage
VCC
7
17
VCC
5 V supply voltage
5 V supply voltage
VCC
8
18
VCC
5 V supply voltage
SUPS active output:
Low (0 V) = SUPS inactive
High (3.3 V) = SUPS active
SUSV
9
19
GND
Ground
3.3 V supply voltage
3.3 V
10
20
3.3 V
3.3 V supply voltage
