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778959-30, Gen 1 x1, 30 m, Optical Fiber, MXI-Express Cable
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# National Instruments 778959-30 MXI-Express Cable
The National Instruments 778959-30 is a 30-meter fiber-optic MXI-Express cable designed for high-speed communication between PXI and PXI Express systems. It provides a Gen 1 x1 connection between a host interface board, such as a PCI or PCI Express MXI-Express interface, and a remote PXI or PXI Express chassis. The cable can also be used to connect multiple chassis in a distributed, multi-chassis configuration, making it useful for larger test and measurement systems.
The 778959-30 features male LC/PC duplex connectors at both ends for connecting the optical link between compatible MXI-Express interfaces. Its 30-meter length allows the host computer and PXI chassis to be positioned well apart, which can be useful when test equipment needs to be installed in separate racks, isolated areas, or away from the host computer. The cable supports MXI-Express Gen 1 x1 communication and provides the bandwidth needed for applications such as automated testing, data acquisition, and instrumentation control.
The fiber-optic design offers several advantages over copper connections, particularly when longer cable runs are required. Optical fiber is highly resistant to electromagnetic interference (EMI) and does not introduce the ground-loop problems that can occur with electrically connected equipment. This makes the 778959-30 a good choice for electrically noisy environments or installations where the host and measurement hardware need to remain electrically isolated.
When connected between compatible MXI-Express interfaces, the 778959-30 extends the PCI Express connection between the host computer and remote PXI or PXI Express chassis. This allows the host system to communicate with and control the installed PXI modules over the fiber link. For distributed or multi-chassis PXI installations, the 30-meter cable provides the additional distance needed to accommodate larger equipment layouts while maintaining a reliable connection between the host and instrumentation.
| Model | 778959-30 |
|---|---|
| Part Number | 778959-30 |
| Part Type | Fiber Optic Cable |
| Communication Level | Gen 1 x1 |
| Length | 30 m |
| Front End Connector | LC/PC Duplex, Male |
| Back End Connector | LC/PC Duplex, Male |
| Medium | Optical Fiber |
| Compatibility | PXI / PXI Express |
| Multichassis Support | Yes |
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