©
National Instruments Corporation
13
8-Slot NI PXIe-1062Q Backplane Installation Guide
Figure 9.
Backplane Power and CLK10 Connectors
Refer to the CompactPCI Express specification for details regarding
PS_ON# and PS_OK.
Caution
Do not use the voltage sense pins (22, 23, and 25) to power the board. These pins
are connected by thin trace to the backplane center and are for voltage sensing only.
Providing current through these pins may damage the backplane. If your power supply has
voltage sensing, use these pins; otherwise, leave them unconnected. Pins with “power
plane” in the description are connected to the backplane’s internal power planes and are
suitable for carrying current.
Note
Tyco Electronics manufactures the J29 mating connector, which you can order with
part number 298-08-01100.
Note
The connector SMBus pins are connected to the backplane SMBus, which the
CompactPCI Express specification defines. (The specification also defines uses and
addressing. Improper use of the SMBus could result in system controller malfunctions.
There are two SMBus slave devices on the NI PXIe-1062Q backplane. The
Backplane Descriptor EEPROM is at slave address A4
H
as defined by the
CompactPCI Express specification, and the backplane clocking CPLD is at
slave address 5A
H
. If you must connect an SMBus slave device to the J29
SMBus pins, use slave address 58
H
.
1
Pl
a
ted Mounting Hole
s
(
8
x)
2
Connector J27
3
Connector J29
1
1
2
3
