Compact 4-Slot Military-Grade I/O Chassis, Zynq CPUs

The DNR-MIL-4 is the latest deployment of UEI’s popular RACKtangle® architecture. Based on UEI’s popular DNR-MIL, it offers slots for four I/O boards. Designed for use in the toughest environments, the DNR-MIL-4 is ideal for military ground vehicle and aerospace deployments as well as a huge assortment of commercial applications. All connectivity is through ROHS compliant 38999 connectors.

The DNR-MIL-4 is available with UEI's three primary CPU options, the 8347, the ARM-based SoloX, and the quad-core Zynq UltraScale. For use in PowerDNA/slaved mode, the 8347 version is recommended. For embedded applications, the SoloX or Zynq may be preferred depending on the specifics of the application. The Zynq CPU series also support TSN Ethernet timing protocols. Please see the UEIPAC datasheet for specifics on the various CPUs.

Electronically, the DNR-MIL-4 is identical to the standard DNR Series RACKtangle, except for hold-up and protection circuitry on the power supply inputs to meet MIL-STD-1275/704. This means the DNR-MIL-4 uses standard DNR-series boards (e.g. DNR-AI-217 or DNR-1553-553). With over 90 unique I/O boards and 4 slots available, there’s sure to be a configuration matching your application.

The new DNR-MIL-4 is designed to meet the most commonly required elements of MIL-STD-461 and -810, and is sealed to at least IP66/NEMA6 standards. All this is housed in a compact, 9.5" W x 7.1" D x 4.3" H chassis, weighing less than 10 pounds and typically consuming less than 30 Watts. Heat transfer from the internal electronics to the external chassis is designed such that no fans or rotary cooling is required. All internal printed circuit boards are conformal coated to ensure the highest reliability.