DS3800NISA1C1D | Replacement for DS3800NISA

Description

Product Introduction

The DS3800NISA1C1D is a premium military-grade version of the isolated serial adapter board—the NISA with extended temperature range, military-grade triple-layer coating, MIL-STD-810G shock/vibration tolerance, and enhanced diagnostics. The suffix tells the story: the first “1” indicates a hardware revision with improved isolation and signal conditioning. The “C” specifies extended temperature range components with higher-grade capacitors. The second “1” adds enhanced diagnostic features. The final “D” is the military-grade environmental package: triple-layer conformal coating, hermetically sealed components, and MIL-STD-810G shock/vibration tolerance. This board was designed for the most demanding isolated serial applications where reliability and environmental tolerance are critical.

The triple-layer coating protects against humidity, salt spray, and corrosive gases. The MIL-STD-810G rating means it survives 75g shock and 8g vibration. Compare this to the NISA1C1C (extended temperature range, dual-layer UV-resistant coating, no MIL-STD-810G). The 1C1D adds shock/vibration tolerance for the harshest installations.

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

What’s the difference between the NISA1C1D and the NISA1C1C?
The 1C1D adds triple-layer conformal coating (the 1C1C has dual-layer) and MIL-STD-810G shock/vibration tolerance (75g/8g). The 1C1C does not have MIL-STD-810G certification. The 1C1D is for installations where shock and vibration are concerns—turbine decks, shipboard installations, or military ground vehicles.

What’s the “Serial Activity” LED?
The Serial Activity LED indicates traffic on the serial link. The board monitors the TX and RX lines. Green means data is flowing. Red means a communication error—check the serial device and cabling.

What’s the triple-layer coating?
The first layer is a standard acrylic conformal coating. The second layer is a silicone-based coating that adds flexibility and thermal shock resistance. The third layer is a urethane topcoat with UV protection—it’s harder and more abrasion-resistant. The combination protects against humidity, salt spray, corrosive gases, and mechanical abrasion.

Do I need to upgrade my DMP firmware for the enhanced diagnostics?
The enhanced diagnostics require DMP firmware v3.0 or later. Older firmware won’t recognize the diagnostic registers. We can provide the firmware EPROMs if you need them.

What’s the communication protocol for this board?
The communication protocol depends on the specific configuration. The NISA supports RS-232 and RS-485 depending on the jumper and component configuration. Check the board’s label or your system documentation for the exact protocol.

Can I hot-swap this board?
No. Mark IV backplanes are not hot-swappable. The 1C1D has additional securing clips—make sure they’re properly engaged before powering up.

What’s your warranty and lead time?
We stock the NISA1C1D 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, a thermal cycle (-55°C to +85°C), 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.

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