CPC505
C P C 5 0 5 U s e r M a n u a l
32
© 2 0 2 2 F a s t w e l v . 0 0 1
3.2.6.1 Color code designations of CompactPCI connectors
The CompactPCI connectors use guiding ears to ensure proper connection. To avoid wiring errors,
color coding is also used for the various standard operating voltages. The color coding prevents 5V
peripheral boards from mounting them into a socket operating at 3.3V and vice versa. Backplane
connectors are always marked according to the signal voltage level (VIO).
The CPC505 is a 3.3V/5V signal level board.
Table 3-10
– Color code designations of connectors
Signal voltages
Color
3.3 V
Cadmium yellow
5 V
Bright blue
Universal board (5 V and 3.3 V)
No
3.2.6.2 Assignment of pins of the CompactPCI XS18 and XS16 connectors
The CPC505 is equipped with two CompactPCI bus connectors with a 2x 2 mm pin pitch - XS18
and XS16.
Table 3-11
– Assignment of pins of the CompactPCI XS18 (J1) system connector
XS18
Pin
Z
A
B
C
D
E
F
25
GND
5V
REQ64#
ENUM#
3.3V
5V
GND
24
GND
AD[1]
5V
LNG_VIO
AD[0]
ACK64#
GND
23
GND
3.3V
AD[4]
AD[3]
LNG_5V
AD[2]
GND
22
GND
AD[7]
GND
LNG_3.3V
AD[6]
AD[5]
GND
21
GND
3.3V
AD[9]
AD[8]
M66EN
C/BE[0]#
GND
20
GND
AD[12]
GND
VIO
AD[11]
AD[10]
GND
19
GND
3.3V
AD[15]
AD[14]
LNG_GND
AD[13]
GND
18
GND
SERR#
GND
3.3V
PAR
C/BE[1]#
GND
17
GND
3.3V
IPMB_SCL
IPMB_SDA
LNG_GND
PERR#
GND
16
GND
DEVSEL#
GND
VIO
STOP#
LOCK#
GND
15
GND
3.3V
FRAME#
IRDY#
SHRT_GND
TRDY#
GND
14
GND
GND
13
GND
GND
12
GND
GND
11
GND
AD[18]
AD[17]
AD[16]
LNG_GND
C/BE[2]#
GND
10
GND
AD[21]
GND
3.3V
AD[20]
AD[19]
GND
9
GND
C/BE[3]#
SHRT_GND
AD[23]
LNG_GND
AD[22]
GND
8
GND
AD[26]
GND
VIO
AD[25]
AD[24]
GND
7
GND
AD[30]
AD[29]
AD[28]
LNG_GND
AD[27]
GND
6
GND
REQ0#
GND
LNG_3.3V
CLK0
AD[31]
GND
