8-Slot PXI Backplane Installation Guide
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Connector J1
Connector J1 is for interfacing with the backplane’s PXI_CLK10 circuitry.
The location of the J1 connector is shown in Figure 4. The mating
connector for J1 is manufactured by Positronic and can be ordered with the
part number CBD7W2M2000Z-759.1.
Table 1.
Connector J20 Pin Descriptions
Connector
Pin
Signal
Description
Required
for Basic
Power-up
1
+3.3 V
Bac3.3 V power plane.
Yes
2
GND
Backplane ground plane.
Yes
3
+3.3 V
Bac3.3 V power plane.
Yes
4
LED2
Connects to pin 8 of J21.
No
5
INHIBIT
Connects to pin 7 of J21.
No
6
LED1
Connects to pin 5 of J21.
No
7
SMB_SDA
Connects to pin C19 on J2 (slot 1).
No
8
SMB_ALERT#
Connects to pin E19 on J2 (slot 1).
No
9
SMB_SCL
Connects to pin D19 on J2 (slot 1).
No
10
THERM1 (optional)
Connects to pin 2 of J21.
No
11
THERM2 (optional)
Connects to pin 1 of J21.
No
12
GND
Backplane ground plane.
Yes
13
GND
Backplane ground plane.
Yes
14
–12 V
Backplane –12 V power plane.
Yes
15
I2C_CLK
Connects through R34 to pin A2 of J9.
No
16
I2C_DAT
Connects through R33 to pin B2 of J9.
No
17
+12 V_FAN
Se12 V for slot 1.
Yes
18
GND
Backplane ground plane.
Yes
19
+12 V
Bac12 V power plane.
Yes
20
GND
Backplane ground plane.
Yes
21
+5 V
Bac5 V power plane.
Yes
22
GND
Backplane ground plane.
Yes
3
1
5
8
11
14
17
19
21
2
4
6
7
9
10
12
13
15
18
20
22
16
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