PXI Express Peripheral Bus Pinout

PXI Express Peripheral Bus Connector Pinout and Signal names
The PXI Express Peripheral slot pinout is provided below. [a non-system slot]

**PXIe XP4/XJ4 Connector Signal Assignments**
Pin #	Signal name	Signal name	Signal name	Signal name	Signal name	4">Signal name	Signal name
--	Row Z	Row A	Row B	Row C	Row D	Row E	Row F
1	GND	GA4	GA3	GA2	GA1	GA0	GND
2	GND	5Vaux	GND	SYSEN#	WAKE#	ALERT#	GND
3	GND	12V	12V	GND	GND	GND	GND
4	GND	GND	GND	3.3V	3.3V	3.3V	GND
5	GND	PXI_TRIG3	PXI_TRIG4	PXI_TRIG5	GND	PXI_TRIG6	GND
6	GND	PXI_TRIG2	GND	ATNLED	PXI_STAR	PXI_CLK10	GND
7	GND	PXI_TRIG1	PXI_TRIG0	ATNSW#	GND	PXI_TRIG7	GND
8	GND	RSV	GND	RSV	PXI_LBLL6	PXI_LBR6	GND

**PXIe XP3/XJ3 Connector Signal Assignments**
Pin #	Signal name	Signal name	Signal name	Signal name	Signal name	Signal name	Signal name	Signal name	Signal name
--	Row A	Row B	Row ab	Row C	Row D	Row cd	Row E	Row F	Row ef
1	PXIe_CLK100+	PXIe_CLK100-	GND	PXIe_SYNC100+	PXIe_SYNC100-	GND	PXIe_DSTARC+	PXIe_DSTARC-	GND
2	PRSNT#	PWREN#	GND	PXIe_DSTARB+	PXIe_DSTARB-	GND	PXIe_DSTARA+	PXIe_DSTARA-	GND
3	SMBDAT	SMBCLK	GND	RSV	RSV	GND	RSV	RSV	GND
4	MPWRGD	PERST#	GND	RSV	RSV	GND	1Refclk+	1Refclk-	GND
5	1PETp0	1PETn0	GND	1PERp0	1PERn0	GND	1PETp1	1PETn1	GND
6	1PETp2	1PETn2	GND	1PERp2	1PERn2	GND	1PERp1	1PERn1	GND
7	1PETp3	1PETn3	GND	1PERp3	1PERn3	GND	1PETp4	1PETn4	GND
8	1PETp5	1PETn5	GND	1PERp5	1PERn5	GND	1PERp4	1PERn4	GND
9	1PETp6	1PETn6	GND	1PERp6	1PERn6	GND	1PETp7	1PETn7	GND
10	RSV	RSV	GND	RSV	RSV	GND	1PERp7	1PERn7	GND

PXI stands for Compact PCI for Instrumentation Bus

The pin descriptions which indicate a Key is not a pin, but a male or female void [key].
The V(I/O) pins are un-named in this table. In a +5 volt system the V(I/O) pins are +5volts, in a +3.3 volt system the V(I/O) pins are +3.3 volts.

PXI [and cPCI] uses 2mm 'Hard Metric'; IEC 1076-4-101, a number of different pin arrangements. Normally the outside Ground rows (which are compression pins) 'Z' and 'F' are not counted as pins. OEM pin numbering may be by cPCI or in accordance with IEC 61076-4-101 (which is reversed). The term "Hard Metric" only means that metric dimensions are preferred ~ with-out regard to inches.

PXI [and cPCI] 2mm connectors mating distances [12.50mm] matches the 96 pin DIN 41612 connectors used with other EuroCard packaging [IEC 273 or IEEE 1101, 1101.10], like VMEbus. FutureBus connectors, which also use 2mm style has a mating distance of 10mm, and is not compatible with cPCI connectors.

Note, the Instrumentation side of cPCI is a niche market, just as VXI is to VME.
By the term niche I only mean to say that the PXI market is a subset of the cPCI market.

Back to the main PXIe Compact PCI [cPCIe] for Instrumentation Bus page, which contain a description of the bus, connector manufacturer, and IC manufacturer links.

Site Navigation: Engineering Home > Electrical Buses > Backplane Buses > PXIe Bus > PXIe Peripheral Slot Signal Assignments.


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