PCI-Express
Chapter:
Connectors
Beckhoff New Automation Technology
CB3052
page 39
3.19 PCI-Express
The CB3052 offers a 2x40pin custom connector for the PCI-Express bus. You can connect one PCIe4x
device here. Alternatively, up to four PCIe1x devices can be connected. Adapter cards featuring standard
PCIe sockets or a PCIe Mini Card connector are available. Please contact your sales representative for
these cards.
Pinout 2x40 pin connector PCIe:
Description
Name
Pin
Name
Description
3.3 volt supply
3.3V
1
2
12V
12 volt supply
3.3 volt stand-by
S3.3V
3
4
SMBCLK1
SMB clock slot 1
PCIe reset
PLTPCIE#
5
6
SMBDAT1
SMB dat slot 1
link reactivation
PEWAKE#
7
8
GND
ground
ground
GND
9
10
PECLK0
PCIe clock 0 +
transmit lane 1 +
PET1
11
12
PECLK0#
PCIe clock 0 -
transmit lane 1 -
PET1#
13
14
GND
ground
ground
GND
15
16
PER1
receive lane 1 +
clock enable 1
PE1CLKEN# 17
18
PER1#
receive lane 1 -
ground
GND
19
20
GND
ground
3.3 volt supply
3.3V
21
22
12V
12 volt supply
3.3 volt stand-by
S3.3V
23
24
SMBCLK2
SMB clock slot 2
PCIe reset
PLTPCIE#
25
26
SMBDAT2
SMB dat slot 2
link reactivation
PEWAKE#
27
28
GND
ground
ground
GND
29
30
PECLK1
PCIe clock 1 +
transmit lane 2 +
PET2
31
32
PECLK1#
PCIe clock 1 -
transmit lane 2 -
PET2#
33
34
GND
ground
ground
GND
35
36
PER2
receive lane 2 +
clock enable 2
PE2CLKEN# 37
38
PER2#
receive lane 2 -
ground
GND
39
40
GND
ground
3.3 volt supply
3.3V
41
42
12V
12 volt supply
3.3 volt stand-by
S3.3V
43
44
SMBCLK3
SMB clock slot 3
PCIe reset
PLTPCIE#
45
46
SMBDAT4
SMB dat slot 3
link reactivation
PEWAKE#
47
48
GND
ground
ground
GND
49
50
PECLK2
PCIe clock 2 +
transmit lane 3 +
PET3
51
52
PECLK2#
PCIe clock 2 -
transmit lane 3 -
PET3#
53
54
GND
ground
