The PXIe-1095 chassis offers 82 W of power and cooling in every slot, more than double that of previous NI PXI Express chassis. This specification is valid for a chassis filled with modules each requiring 82 W of power dissipation. More power and cooling in every slot allows higher power budgets for PXI modules and makes it possible for the PXI platform to continually serve challenging, high-performance applications.
In addition to 82 W of power and cooling in every slot, the 18-slot chassis offers several other key features like a second, quieter 38 W cooling profile, two hot-swappable power supplies, an optional timing and synchronization upgrade, and up to 24 GB/s PCI Express Gen 3 theoretical system bandwidth.
Two Cooling Profiles: 38 W and 58 W / 82W
The PXIe-1095 offers two distinct, software-selectable cooling profiles: 38 W and 58 W / 82 W. The lower cooling profile tunes the fan algorithm to cool a chassis full of modules each requiring up to 38 W of power dissipation, and the higher cooling profile increases the fan speeds to cool a chassis full of modules each requiring up to 58 W or even 82 W of power dissipation. All modes set are persistent across system reboots. The chassis may increase its fan setting from Auto to High or from the 38 W profile to the 58 W / 82 W profile based on requests from certain modules.
Figure 1. Choose an appropriate cooling profile within Measurement and Automation Explorer (NI MAX)
Reduced Fan Noise
The PXIe-1095’s lower 38 W cooling profile features a significant reduction in fan noise, delivering a 13 dB improvement compared to the previously released PXIe-1085 chassis and making it one of NI’s quietest PXI Express chassis in this mode. The PXIe-1084 has even further improved acoustics in its 38 W cooling mode. You can take advantage of the improved acoustics in the 38 W cooling profile mode with any previously released PXI Express or PXI hybrid modules. Note that 10 dB here translates to a perceived noise difference of 2X.
Table 5. Compare the sound pressure level of PXI Express chassis.
||Sound Pressure Level [dBA]*
Auto fan (up to 30 °C)
* Sound pressure level is defined at operator position in accordance with ISO 7779
** 38 W cooling profile mode only; higher cooling profiles have a higher sound pressure level
Two Hot-Swappable Power Supplies
The chassis offers two hot-swappable, highly serviceable 1,200 W power supplies. To dissipate 82 W of power in every slot, both power supplies are required. For applications consisting entirely of modules dissipating up to 38 W each, only one power supply is required—a second power supply is redundant to such applications.
Figure 2. The PXIe-1095 offers two hot-swappable 1,200 W power supplies
Timing and Synchronization Upgrade
With the PXIe-1095, a new option is the ability to add a timing and synchronization upgrade at time of purchase. The upgrade includes an integrated oven-controlled crystal oscillator (OCXO) as well as external clock and trigger routing. In this way, you can upgrade your system’s clock stability and accuracy without having to sacrifice the system timing slot. However, this upgrade option is not ideal for every application, because PXI timing and synchronization modules offer several more features that this upgrade option is incapable of, like star triggers, differential star triggers, or others through software like accounting for cable length skew correction in multichassis systems.
Figure 3. The chassis offers an optional timing and synchronization upgrade that includes a built-in OCXO for increased clock accuracy and external clock and trigger routing.
PCI Express Gen 3 System Bandwidth
Like the previously released PXIe-1085, the PXIe-1095 offers 24 lanes of PCI Express Gen 3 technology for a theoretical maximum of 24 GB/s system bandwidth.
Figure 4. System bandwidth for each generation of PXI and PXI Express based on the 24 available data lanes