DS3800NGMA1B1A | OEM GE Speedtronic General I/O

Description

Product Introduction

The DS3800NGMA1B1A is an enhanced version of the general-purpose I/O board—the NGMA with improved diagnostics, extended temperature range, and conformal coating. The suffix tells the story: the first “1” indicates a hardware revision with improved signal conditioning and expanded configuration options. The “B” specifies extended temperature range components. The second “1” adds enhanced diagnostic features (configuration verification, link quality monitoring). The final “A” is the standard environmental package (no conformal coating—this is a single-layer board). This board was designed for installations where the standard NGMA wasn’t sufficient—where better diagnostics or extended temperature range were needed.

The extended temperature range means the board can operate in uninsulated shelters or outdoor cabinets. The enhanced diagnostics verify the board’s configuration and provide detailed status reporting. Compare this to the base DS3800NGMA (standard temperature range, basic diagnostics). The 1B1A gives you the same basic functionality with better diagnostic feedback and extended temperature tolerance.

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

What’s the difference between the NGMA1B1A and the base NGMA?
The 1B1A adds enhanced diagnostics (configuration verification, link quality monitoring) and extended temperature range (-40°C to +70°C vs 0 to 60°C). The base NGMA has basic link status and standard temperature range only. If you need diagnostic feedback or are operating in a harsh environment, choose the 1B1A.

What’s the “Config OK” LED?
The Config OK LED verifies that the board’s jumper and firmware settings are consistent with the Mark IV system’s configuration. If the LED is green, the configuration is correct. If it’s red, the board is misconfigured—check the jumper settings and the firmware configuration. This catches misconfigurations before they cause problems.

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—the board will still pass data, but the Config OK LED won’t function correctly. We can provide the firmware EPROMs if you need them.

Does this board have conformal coating?
No, the final “A” indicates no conformal coating. This is a bare board. If you need conformal coating for humidity or salt spray protection, look for the NGMA1B1B or NGMA1B1C variants. The 1B1A is for clean, dry environments where coating isn’t necessary.

How is the NGMA configured?
The NGMA is configured via jumpers on the board or through firmware settings. The exact configuration depends on the application. If you’re replacing a failed NGMA, photograph the jumper settings before removing the old board. The Config OK LED will verify that the settings are correct.

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 NGMA1B1A in limited quantities. Lead time is 1-2 business days. We offer a 1-year warranty. We test every board with a 24-hour burn-in and a 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.

GE IS200VSVOH1B
ABB 216NG63A HESG441635R1 HESG216877/K