The General Electric DS3800HMPJ1A1D, also cataloged as the DS3800HMPJ Microprocessor Board, operates as a dedicated hardware component for localized processing and execution tasks within Mark IV Speedtronic Turbine Control System platforms.
| Part Segment | Structural / Functional Coding |
|---|---|
| DS3800 | Domestic manufacture location; Mark IV Series Group 1 product class |
| HMPJ | Functional board acronym designation |
| 1 | Design revision / assembly iteration level 1 |
| A1D | Artwork version and consecutive engineering revision state |
| Parameter | Specification |
|---|---|
| Model | DS3800HMPJ1A1D |
| Brand | General Electric |
| Origin | USA (Domestic) |
| Weight | Standard PCB weight (~0.45 kg / 1.0 lb) |
| Dimensions | Standard Mark IV full-height circuit board profile |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Standard backplane VME bus power requirements |
| Series | Mark IV Speedtronic |
| Board Functional Acronym | HMPJ |
| Assembly Type | Normal Assembly |
| Processor Architecture | Dedicated onboard microprocessor with 50+ integrated circuits |
| Memory Components | Onboard socketed PROM / EPROM IC arrays |
| Interface Connectors | Edge backplane card-edge connector, onboard vertical pin connector, cable header |
| Expansion Capability | 4-standoff mounting footprint for piggyback daughterboard installation |
| User Interfaces | 2 Status LEDs (1 Red, 1 Yellow), jumper switch arrays, test points |
| Mechanical Mounting | Dual PCB retention clips for VME rack insertion, insulated factory-drilled mounting holes |
Configured to interface with the Mark IV Speedtronic Triple Modular Redundant (TMR) architecture, the board exchanges critical processing metrics via high-velocity backplane bus communication protocols. The onboard processor coordinates local memory cycles across socketed EPROM/PROM arrays while maintaining firmware flash compatibility across systemic revision states. Integrated signal paths feature dedicated hardware test points to evaluate real-time logic states without disrupting deterministic bus execution.
Q: How is the daughterboard interface mechanically secured and electrically coupled to the DS3800HMPJ1A1D?
A: Secondary daughterboards mount directly onto four surface standoffs and communicate via the primary board's vertical pin and cable connector assembly.
Q: What installation feature prevents static damage or ground loops when mounting the board chassis?
A: All factory-drilled base mounting holes are ringed with specialized insulating material to isolate surface voltages and prevent ground potential transfer.
Q: Do jumper switches require configuration during field replacement?
A: Yes, onboard jumper switches set physical hardware operating modes and must be configured to match the hardware profile of the original board being replaced.
Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.
Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.
We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.