MXI-4E PXI Bus Expander

MXI-4E PXI Bus Expanders

MXI-Express Interface Card
  • Supports remote control of PXI and CompactPCI chassis
  • Transparent PCI bridge operation
  • 100 MB/s sustained data rate
  • 1, 3 or 7 m copper cabling with rugged, captive screw connectors
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The MXI-4E PXI Bus Expander allows for direct control of PXI systems from a PCI slot in a desktop computer or server. MXI-4E interface cards can also be used for linking multiple PXI chassis. MXI-4E technology utilizes a high-bandwidth link that is transparent to software applications and drivers, therefore providing the ability to use high performance desktop computers or servers to control PXI systems.


Since PXI is based on the industry-standard PCI bus, the MXI-4E Bus Expander provides a transparent link where all PXI modules appear to the user as if they were PCI boards within the computer itself. However, with PXI technology, users benefit from an increased number of slots, power and cooling per slot, module selection, and synchronization features.

The MXI-4E employs MXI-Express technology and builds on the standard PCI-to-PCI bridge architecture by splitting the bridge into two halves which are connected by a high speed serial link. The MXI-4E kit consists of a PCI card, a copper cable, and a PXI interface card. Individual kit components may be purchased separately for spares or to meet your specific requirements.

Multi-Chassis Systems

The MXI-4E Bus Expander can be used to connect multiple PXI chassis in a star or daisy-chain configuration within a single system. To connect two PXI chassis together, install a MXI-4E-PXI peripheral slot controller card into any peripheral slot of the master chassis, and then connect the appropriate cable to a MXI-4E-PXI remote controller in slot 1 of the slave chassis.


Remote control of a PXI or cPCI chassis via desktop PC
Remote control of a PXI or cPCI chassis via a PXI chassis with an embedded controller



MXI-4E-C MXI-Express Kit, Copper, PXI to PCI, with 3m Cable
MXIe1-PXI-L Laptop (ExpressCard) to PXI Interface Card Kit, Includes a 3 Meter Cable
MXI-EXPRESS MXI-Express Interface Kit Including PCIe Interface Card, PXI Interface Card, and a 3 Meter Cable
MXI-EXPRESS-2 Dual MXI-Express I/F Kit Including Dual-Port PCIe I/F Card, 2 PXI I/F Cards, and 2 3 Meter Cables
MXI-4E-PCI-C MXI-Express Interface Card, PCI, Copper, (Requires One MXI-E-PXI-C & Cable)
MXI-4E-PXI-C MXI-Express Interface Card, PXI, Copper, (Requires One MXI-E-PCI-C & Cable)
MXI-4E-PXI-C-P MXI-Express Interface Card, PXI, Copper, for Daisy Chain Configurations (Requires One MXI-E-PXI-C & Cable)




Power Requirements
MXI-4E-PCI-C +5 V: 155 mA (typ); 250 mA (max)
+3.3 V: 155 mA (typ); 250 mA (max)
MXI-4E-PXI-C +12 V: 10 mA (typ); 12 mA (max)
+5 V: 8 mA (typ); 10 mA (max)
+3.3 V: 440 mA (typ); 650 mA (max)
Maximum Cable Length 7 M (copper)
200 M (fiber)
Operating Temperature 0 °C to +55 °C
Storage Temperature -20 °C to +70 °C
Operating Relative Humidity 10 to 90%, non-condensing
Storage Relative Humidity 5 to 95%, non-condensing
2.48″ x 4.76″ (6.3 cm x 12.1 cm)
Weight MXI-4E-PCI-C: 0.11 lb (typ)
MXI-4E-PXI-C: 0.31 lb (typ)
Safety IEC 61010-1, EN 61010-1
UL 61010-1, CSA 61010-1
EMC EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity
EN 55011 (CISPR 11): Group 1, Class A emissions
Compatibility PXI Hardware Specification 2.1, PCI Specification 3.0


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