Description
The GE General Electric DS3800HLNC1A1A is a Network Control Board designed for GE Mark IV Speedtronic turbine control systems. The board belongs to the DS3800 Mark IV family and provides network control functions within compatible turbine and drive control equipment. The assembly includes a modular connector, retention levers, a 40-pin connector, onboard microprocessor, amber diagnostic LED, eight EEPROM module sockets, and 21 configuration jumpers. The EEPROM sockets are used for firmware and instruction-code modules, which may need to be transferred from an existing board when replacing a failed assembly. Because this is legacy Mark IV hardware, the complete part number and installed firmware configuration should be matched before replacement.
Product Datasheet
| Specification | Details |
|---|---|
| Brand | GE General Electric |
| Model | DS3800HLNC1A1A |
| Base Model | DS3800HLNC |
| Series | Mark IV Speedtronic |
| Product Name | Network Control Board |
| Board Type | Network Controller |
| Main Function | Network and control signal processing |
| Processor | Onboard Microprocessor |
| Main Connector | 40-Pin Connector |
| EEPROM Sockets | 8 |
| Configuration Jumpers | 21 |
| Status Indicator | 1 Amber LED |
| Mounting | Mark IV control equipment |
| Board Construction | Industrial printed circuit board assembly |
| Product Status | Legacy / Obsolete |
| Condition | New |
| Country of Manufacture | USA |
Key Features
- GE Mark IV Speedtronic Network Control Board
- Full part number: DS3800HLNC1A1A
- Designed for compatible GE turbine and drive control systems
- Onboard microprocessor for control processing
- One 40-pin connector
- Eight EEPROM sockets for firmware and instruction modules
- 21 configuration jumpers
- Amber diagnostic/status LED
- Modular connector and board retention levers
- Suitable as a replacement for compatible DS3800HLNC assemblies
- Legacy GE hardware for Mark IV systems
- New condition as specified for this listing
Common Questions & Answers
Q: What is the DS3800HLNC1A1A?
A: It is a GE Mark IV Network Control Board used for network and control processing in compatible Speedtronic turbine control equipment.
Q: What is the difference between DS3800HLNC and DS3800HLNC1A1A?
A: DS3800HLNC identifies the board family, while DS3800HLNC1A1A identifies the specific board assembly and revision configuration.
Q: Does the board contain EEPROM modules?
A: The board provides eight EEPROM sockets. Replacement boards may have empty sockets, so the firmware/instruction modules from the original board may need to be transferred when applicable.
Q: What does the amber LED indicate?
A: The LED provides a visual operating/fault indication. The exact interpretation should be checked against the applicable Mark IV system documentation and site troubleshooting procedure.
Q: Can this board replace any DS3800HLNC board?
A: Not automatically. Always match the complete DS3800HLNC1A1A part number, revision, firmware configuration, and system application before installation.
Troubleshooting & Safety
Disconnect and isolate all applicable AC and DC power sources before removing or installing the board. Mark IV equipment can have multiple power sources, so verify that stored and externally supplied energy has been removed.
Before installation, inspect the 40-pin connector, modular connector, retention hardware, EEPROM sockets, jumpers, and PCB for damage or contamination. If EEPROM modules are transferred from an existing board, use appropriate ESD protection because the memory modules can be damaged by static electricity. Record the original jumper positions and module locations before removal, and verify the replacement configuration against the system documentation.
After installation, check the board’s diagnostic LED and confirm normal network/control operation. Do not change jumper settings or firmware modules unless the required configuration has been verified.
Recommended GE Models
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- GE DS3800HLND – Network Controller Board
- GE DS3800HLND1B1B – Network Controller Board
- GE DS3800HLND1C1C – Network Control Card
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- GE DS3800HLNF – Turbine Control Board
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- GE DS3800HLOA – Log Drive Bus Interface Board
- GE DS3800HLOA1D1A – Mark IV Log Drive Bus Interface
- GE DS3800HLOA1D1B – Log Drive Bus Interface Card
- GE DS3800HCMA – Dual Communication Controller
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- GE DS3800HMPF – Microprocessor Board



