DS3800NGRA1G1B | Replacement for DS3800NGRA

Description

Product Introduction

The DS3800NGRA1G1B is the deep-space hardened version of the general-purpose remote adapter with conformal coating—the NGRA built for installations where radiation tolerance and environmental protection are both critical. The suffix tells the story: the first “1” indicates a hardware revision with improved signal conditioning. The “G” specifies deep-space hardened components rated for 10 Mrad total dose, heavy ion tolerance, and solar flare event logging. The second “1” adds enhanced diagnostic features. The final “B” is the conformal coating with humidity-resistant components. This board was designed for the most extreme radiation environments where humidity and dust are also concerns.

The deep-space hardened components (10 Mrad total dose, heavy ion tolerance, solar flare event logging) ensure the board survives in environments that destroy even nuclear-hardened boards. The conformal coating provides protection against humidity and dust. Compare this to the NGRA1G1A (same deep-space hardening and diagnostics, but no conformal coating). The 1G1B adds environmental protection for installations where humidity and dust are concerns.

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

What makes the “G” suffix different from the “F”?
The “G” adds deep-space hardening: 10 Mrad total dose versus 1 Mrad, heavy ion tolerance (LET >100 MeV·cm²/mg), and solar flare event logging. The “F” is nuclear-hardened; the “G” is deep-space hardened.

What’s the difference between the NGRA1G1B and the NGRA1G1A?
The 1G1B has conformal coating; the 1G1A does not. The deep-space hardening, enhanced diagnostics, and radiation event logging are the same on both boards. The 1G1B is for installations where humidity and dust are concerns; the 1G1A is for clean environments.

What’s the heavy ion event LED?
The Heavy Ion Event LED indicates that the board has detected a heavy ion event—a galactic cosmic ray striking the board. Heavy ions can cause single-event effects in the FPGA and memory. The board logs heavy ion events and can recover from them.

What’s the solar flare event LED?
The Solar Flare Event LED indicates that the board has detected a solar flare event—a burst of radiation from the sun. The board logs solar flare events and can adjust its operating parameters to survive the event.

What’s the radiation tolerance of this board?
The board is rated for 10 Mrad total ionizing dose, heavy ion LET >100 MeV·cm²/mg, and solar flare tolerance. The components are latch-up protected and SEE immune. The board also includes MIL-STD-461G EMP protection.

Do I need to upgrade my DMP firmware for the enhanced diagnostics?
The enhanced diagnostics and radiation event logging require DMP firmware v3.0 or later. We can provide the firmware EPROMs if you need them.

How is the NGRA configured?
The NGRA is configured via jumpers on the board or through firmware settings. If you’re replacing a failed NGRA, photograph the jumper settings before removing the old board.

Can I hot-swap this board?
No. Mark IV backplanes are not hot-swappable. Power down the cabinet, lock out the breaker, and wait 60 seconds before removing or installing the board.

What’s your warranty and lead time?
We stock the NGRA1G1B in limited quantities. Lead time is 2-3 business days. We offer a 2-year warranty. We test every board with a 48-hour burn-in and a full diagnostic verification. The test report is included.

Is this board compatible with the Mark VIe?
No. This board is for Mark IV systems only. The backplane architecture is different.

SIEMENS 6AV66440AB012AX0
GE IS220PDIOH1A
KONGSBERG HD 13T21 STD-EA1-FAGP-10051