DNR-1553-553 United Electronic Industries 2-Channel, Dual Redundant MIL-STD-1553 Interface for The PowerDNR RACKtangle Chassis

The United Electronic Industries DNA/DNR/DNF-1553-553 Dual-Channel MIL-STD-1553 Interface Boards are high performance, two channel MIL-STD-1553 interfaces for UEI's popular "Cube"/RACKtangle/FLATRACK I/O chassis respectively. Each port operates fully independently and provides a complete dual, redundant 1553 interface and may be set as 1553a or 1553b. The "b" interface fully implements specification notices 1 and 2. Each port is transformer coupled, though direct coupling is manufactured as an option.

Many 1553 functions are implemented in an on-board FPGA. This greatly reduces the burden placed on the chassis CPU and ensures the DNx-1553-553 does not interfere with the functionality of other I/O boards installed.

Each port may be independently configured as Bus Controller (BC), Remote Terminal (RT), Bus Monitor (BM), BC and BM, or RT and BM. As Bus Controller, the board supports all standard BC-RT, RT-BC and RT-RT transfers and Mode Codes. The Remote Terminal support allows the board to be set at a single RT address, or to emulate the entire bus up to 32 different RTs. Bus Monitoring (BM) mode provides the ability to monitor all activity, or selective activity based upon RT address. In addition to monitoring data, BM monitors time tags, error status and RT response time.

When installed in the Cube, the DNA-1553-553 is well suited for the harsh environments sometimes encountered in flight testing applications. The board is specified for operation from -40° to +85° C, from 0 to 70,000 feet. The system is also fully tested for operation at 5g vibration and up to 50 g shock.