DS3800NMEC1B1A | New Surplus GE Turbine Control Board

Description

Product Introduction

The DS3800NMEC1B1A is an enhanced version of the node master expansion controller board—the NMEC with extended temperature range and improved diagnostics. The suffix tells the story: the first “1” indicates a hardware revision with improved control signal conditioning. The “B” specifies extended temperature range components. The second “1” adds enhanced diagnostic features. The final “A” is the standard environmental package (no conformal coating). This board was designed for installations where better diagnostic feedback and extended temperature range were needed for node master expansion control applications.

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 DS3800NMEC (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 NMEC1B1A and the base NMEC?
The 1B1A adds enhanced diagnostics (configuration verification, control link quality monitoring) and extended temperature range (-40°C to +70°C vs 0 to 60°C). The base NMEC has basic link status and standard temperature range only.

What’s the “Control Status” LED?
The Control Status LED indicates the integrity of the expansion control signals. The board monitors control signal integrity, checking for noise, timing issues, or signal degradation. Green means the control link is healthy. Amber means marginal—check the control path. Red means control fault—immediate attention required.

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.

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 protection, look for the NMEC1B1B or NMEC1B1C variants.

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 NMEC1B1A 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.

ABB “SPNPM22ģ ”
Siemens MN160L4E
A-B MPL-B640F-MJ74AA