NI 9146

NI 9146 is a 4-slot Ethernet CompactRIO chassis, also described by NI as an Ethernet RIO expansion chassis for NI C Series I/O modules. It is a primary chassis product rather than a C Series I/O module, making it the backplane host for supported modules on an Ethernet-connected CompactRIO architecture. NI identifies the commercial model as a “4-Slot, Spartan-6 LX45 FPGA, Ethernet CompactRIO Chassis.”

This chassis provides four C Series module slots and an Ethernet network connection. NI specifies a Xilinx Spartan-6 LX45 FPGA and states that the chassis can add C Series I/O modules to any standard Ethernet network. According to NI, the NI 9146 can be programmed using scan mode or by targeting the onboard FPGA, depending on the application architecture and control requirements.

For environmental capability, NI lists an operating temperature range of -40 °C to 70 °C. NI also indicates that conformal coating is not included for this model. The official NI orderable commercial part number shown for the NI 9146 is 782445-01; a separate certification page also references assembly identifier 151880-03L, which appears to be a certification or assembly designation rather than a separate sellable catalog variant.