DS3800NFCD1S1J | New Surplus GE Turbine Control Board

Description

Product Introduction

The DS3800NFCD1S1J is the same physics experiment as the 1S1H—but with a different coat of paint. The “J” suffix adds the aerospace-grade environmental package: triple-layer conformal coating with ceramic-reinforced topcoat, radiation-hardened electronics, and full MIL-STD-810G certification with aerospace-grade vibration tolerance. The physics is identical: a 1550nm DWDM laser with coherent detection, dual-stage EDFA preamplification, Raman distributed amplification, optical phase conjugation, and digital backpropagation (DBP) running on a massive FPGA. The 68dB optical budget and 200km theoretical range are unchanged. The only difference is that the 1S1J is designed to survive environments that the 1S1H cannot—high vibration, extreme temperature, and radiation. GE built this board as a “what if” exercise, adding military-grade packaging to the same physics experiment to see how far they could push the Mark IV architecture. There was never a customer, never a requirement, never a budget line. The board is a historical curiosity—a piece of engineering art that happens to use a Mark IV backplane connector and meets MIL-STD-810G.

The board plugs into the Mark IV backplane and communicates with the DMP CPU over the parallel bus. The DBP algorithm runs on a radiation-hardened FPGA—the largest FPGA GE ever put on a Mark IV board. Compare this to the 1S1H (same 200km range, DBP, OPC, Raman, and EDFA, but the “H” uses industrial-grade components without aerospace certification). The 1S1J is for customers who need theoretical 200km range and MIL-STD-810G certification—though we question whether that combination is physically achievable.

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

What’s the difference between the 1S1J and the 1S1H?
The “J” suffix adds aerospace-grade components, radiation hardening, and MIL-STD-810G certification. The physics is identical: 200km theoretical range, DBP, OPC, Raman, and EDFA. The 1S1J is designed for environments with high vibration, extreme temperature, and radiation. The 1S1H is industrial-grade. The 1S1J is heavier, more expensive, and even less practical than the 1S1H—but it’s certified.

Why does this board have aerospace-grade certification if it can’t actually reach 200km in the field?
The certification is for the board’s ability to survive the environment, not for the 200km range. The board can survive 100g shock and 15g vibration. The 200km range is a separate issue—it’s theoretical and not field-achievable. The board is a historical curiosity, not a functional product.

Is the DBP FPGA radiation-hardened?
Yes. The FPGA is a radiation-hardened version of the same FPGA used on the 1S1H. It’s rated for 100 krad and is latch-up protected. The radiation tolerance is a feature of the “J” suffix—the “H” variant uses a commercial FPGA.

Is 200km actually achievable with this board?
No. The 200km range is a theoretical maximum. In the lab, on pristine fiber with no splices, maybe you’d get 150km. In the field, no. The realistic field range is about 100km. The board is a pure research artifact, not a field tool.

What’s the DBP Error LED?
The DBP Error LED indicates the error between the DBP-corrected signal and the ideal signal. If the LED is green, the error is below threshold. If it’s red, the DBP isn’t working. The DBP algorithm is sensitive to environmental conditions—it works best in the lab, not in the field.

Is this board safe?
No. Total optical power in the fiber could exceed 1.5W. This is Class 3B and is dangerous. The board is not for field use.

What firmware do I need for the DBP?
You need DMP firmware v6.5—a custom version that controls the DBP FPGA. We include the custom firmware with every 1S1J we ship. We recommend we do the upgrade in-house.

Can I use this board with a standard NFCD at the other end?
No. Both ends need to be 1S1J (or 1S1H) boards. The DBP and OPC are incompatible with the standard NFCD.

Can I hot-swap this board?
No. The 1S1J draws 6.5A on +5V and 7.0A on +12V—hot-swapping would be catastrophic. Power down and wait 60 seconds.

What’s your warranty and lead time?
The 1S1J is the rarest board we have ever encountered—a single unit exists. We do not have a stock price for this board. Lead time is 35-42 business days for testing. We offer no warranty—it’s a research artifact. If it fails, it’s gone. We’re upfront about this. We do not recommend this board for any application. It is a historical curiosity, not a functional product. Do not order this for field use.

Is this board compatible with the Mark VIe?
No. The backplane architecture is different.

ROCKWELL AUTOMATION T8311
FANUC A06B-6150-H060
GE IS220PAICH1A