Description
Product Description
The GE DS200DMCAG1A / DS200DMCAG1AAA is a General Electric Mark V Gen/Log/Key Interface Board, identified by the functional acronym DMCA. It is used within GE Speedtronic Mark V turbine-control equipment and provides interface and control functions for associated system communication and I/O hardware. Technical references identify the board as an interface board with connections for multiple Mark V system interfaces.
The board includes multiple vertical pin headers and cable connectors, stab-on connectors, a reset switch, two fuses, LED banks, resistor networks, an auxiliary board with integrated circuits, heat sinks, capacitors, diodes, an inductor, transistors, and other electronic components. The supplied eBay listing identifies the unit as Used, with the seller describing it as Clean and Tested and including a 60-day warranty.
For replacement applications, the complete DS200DMCAG1A / DS200DMCAG1AAA marking should be matched with the existing Mark V or associated excitation-control configuration. Related DMCA revisions such as DS200DMCAG1AEA, DS200DMCAG1AHC, and DS200DMCAG1AGB should not be treated as automatically interchangeable.
Product Datasheet
| Specification | Details |
|---|---|
| Brand | General Electric (GE) |
| Model | DS200DMCAG1A |
| Full / Alternate Marking | DS200DMCAG1AAA |
| Series | Mark V / DS200 |
| Product Name | Gen/Log/Key Interface Board |
| Functional Acronym | DMCA |
| Product Type | Interface / Control PCB |
| Application | GE Speedtronic Turbine Control |
| Related System | Mark V / associated EX2000 control architecture |
| PCB Coating | Normal Coating |
| Functional Revision | A |
| Vertical Pin Headers | 3 |
| Vertical Male Cable Connectors | 4 |
| Female Cable Connector | 1 |
| Stab-On Connectors | Multiple |
| Fuses | 2 |
| Reset Switch | 1 |
| LED Banks | 4 |
| Heat Sinks | 2 |
| Product Status | Legacy / Discontinued |
| Condition | Used – Clean and Tested |
| Warranty | 60 Days, according to supplied listing |
| Dimensions | Approx. 15.9 × 17.8 cm; verify physical unit |
| Weight | Verify actual unit before shipping |
Functional Features
- Designed for GE Speedtronic Mark V control equipment.
- DMCA Gen/Log/Key Interface Board configuration.
- Provides interface functions within the Mark V control architecture.
- Multiple vertical pin and cable connectors support system-level connections.
- Includes dedicated reset circuitry.
- Two onboard fuses provide circuit protection.
- Four LED banks provide visual status indications.
- Auxiliary circuitry includes integrated circuits and heat sinks.
- Includes resistor networks, capacitors, diodes, transistors, and an inductor.
- Supports maintenance and replacement of legacy GE turbine-control hardware.
- Suitable for applications where the exact board revision and system configuration are confirmed.
FAQ
Q1: What is the GE DS200DMCAG1A?
It is a GE Mark V Gen/Log/Key Interface Board, with the functional acronym DMCA.
Q2: What is DS200DMCAG1AAA?
DS200DMCAG1AAA is an associated full/alternate board marking for the DS200DMCAG1A interface-board family.
Q3: What system is this board used in?
It is associated with GE Speedtronic Mark V turbine-control equipment. Some technical references also identify the DS200DMCAG1A within EX2000-related excitation-control applications.
Q4: How many fuses are on the board?
The documented DS200DMCAG1A configuration includes two fuses.
Q5: Does the board have status LEDs?
Yes. The board is documented with four LED banks containing multiple LEDs.
Q6: Is DS200DMCAG1A interchangeable with DS200DMCAG1AHC?
Not automatically. Although both belong to the DMCA interface-board family, the complete functional and artwork revisions are different. Compatibility should be verified against the original system configuration.
Q7: What is the condition of the supplied unit?
The provided listing specifies Used, with the seller noting Clean and Tested and a 60-day warranty.
Q8: What should be checked before installation?
Confirm the complete DS200DMCAG1A / DS200DMCAG1AAA marking, connector arrangement, revision, jumper/configuration details where applicable, and compatibility with the target Mark V equipment.
Troubleshooting & Safety
🛠️ Troubleshooting
- Verify the complete board number before replacement.
- Inspect all cable connectors, pin headers, and stab-on connectors for bent, oxidized, or damaged contacts.
- Check the two fuses if the board does not power correctly.
- Observe the onboard LED banks for abnormal status indications.
- Inspect the reset switch and associated circuitry.
- Compare the auxiliary-board arrangement and component layout with the original board.
- Confirm that the replacement revision matches the installed Mark V configuration.
- Do not substitute another DMCA revision solely because the connector layout appears similar.
⚠️ Safety
- Disconnect and isolate the applicable control-system power before handling the board.
- Follow site lockout/tagout procedures.
- Verify that stored electrical energy has been discharged before installation.
- Use ESD protection when handling the PCB.
- Do not replace fuses with different ratings.
- Confirm connector orientation and seating before energizing the equipment.
- Perform system-level checks according to the applicable GE maintenance procedure before returning the turbine-control system to operation.
Recommended GE Mark V Models
- DS200DMCAG1 — Mark V Gen/Log/Key Interface Board
- DS200DMCAG1AEA — Mark V Interface Board
- DS200DMCAG1AGB — Mark V Gen/Log/Key Interface Board
- DS200DMCAG1AHC — Mark V Gen/Log/Key Interface Board
- DS200DMCAG2AGC — Mark V Interface Board
- DS200DMCBG1A — Mark V IOS DUP Processor Board
- DS200DMCBG1ABA — Mark V IOS DUP Processor Board
- DS200DMCBG2A — Mark V DOS DUP Processor Board
- DS200DPCAG1A — Mark V IOS+ Power Connect Board
- DS200DPCBG1A — Mark V IOS+ Power Connect Board
- DS200DKLBG1A — Mark V Drive Control / LAN Communications Board
- DS200DSPAG1A — Mark V Turbine Control Board
- DS200DTBAG1A — Mark V Digital Contact Terminal Board
- DS200DTBBG1A — Mark V Digital Connector / Terminal Board
- DS200CTBAG1A — Mark V Terminal Board
