GE DS200SIOBH1ABA Speedtronic Mark V Signal I/O Card
Manufacturer: GE Fanuc
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Part Number: DS200SIOBH1A
Condition：New with Original Package
Product Type: Signal I/O Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
General Electric DS200SIOBH1ABA Speedtronic Mark V Signal I/O Board
The General Electric DS200SIOBH1ABA, also cataloged as the DS200SIOBH1 Signal I/O Board, operates as a dedicated hardware component for signal conditioning, routing, and processing within Speedtronic Mark V and Mark VI platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DS200SIOBH1ABA |
| Brand | General Electric |
| Origin | United States |
| Weight | 0.25 kg |
| Dimensions | 273 x 214 x 59 mm |
| Operating Temp | -40 to +70 deg C |
| Power Consumption | +5 VDC / +/-15 VDC via backplane bus |
| Processor | 250 MHz CPU |
| Memory | 64 MB RAM, 32 MB ROM |
| Digital Inputs | 16 channels, 24 VDC sink/source |
| Digital Outputs | 16 relay channels, 2 A per point |
| Analog Inputs | 4 channels (4-20 mA, 0-10 V, thermocouple, RTD) |
| Analog Outputs | 2 channels (4-20 mA) |
| Connectors & Jumpers | One 40-pin connector, 20 jumpers, 3 switch blocks (18 total switches) |
| Bus Protocols | VME bus, RS-485 interfaces |
| Status Indicators | POWER, RUN, I/O ACTIVE, FAULT LEDs |
Backplane Bus Architecture and I/O Density Scaling
The General Electric DS200SIOBH1ABA integrates a 250 MHz onboard microprocessor to process discrete and analog field signals while managing high backplane bus communication velocity across VME-based rack platforms. Supporting dynamic I/O density scaling up to 40 configurable channels, the board coordinates concurrent transfers of 16 digital inputs, 16 relay outputs, and 6 analog I/O lines without inducing controller cycle latency. Onboard memory arrays (64 MB RAM, 32 MB ROM) buffer field telemetry prior to backplane transmission, while conformal coating on the printed circuit board isolates sensitive microprocessor traces from environmental contamination and electromagnetic noise.
Frequently Asked Questions
Q: How do onboard jumpers and switch blocks affect board configuration during field replacement?
A: The board contains 20 configuration jumpers and 3 switch blocks (housing 18 total DIP switches). Engineers must document and replicate all jumper positions and switch states from the removed card to the replacement unit prior to power-up. Adjusting factory settings incorrectly can alter signal routing and trigger false turbine trips.
Q: What power rails feed the module, and how is electrical isolation maintained across field circuits?
A: The card derives logic power (+5 VDC and +/-15 VDC) directly from the VME rack backplane. High-density isolation barriers separate field-side digital relay contacts and analog channels from internal bus processing logic to prevent field surges from damaging the primary rack controllers.
Field Installation Guidelines
- System Power Isolation: Fully de-energize the Mark V/VI rack cabinet and disconnect all field power sources prior to inserting or removing the board from its slot.
- ESD Protocol: Wear a grounded electrostatic discharge wrist strap connected to an unpainted metal chassis ground before opening protective packaging or touching card edge components.
- Hardware Switch Matching: Inspect the 20 onboard jumpers and 3 switch blocks. Ensure every jumper and DIP switch on the replacement module matches the position settings of the original board exactly.
- Cable Connection Handling: Align the 40-pin ribbon cable header carefully to prevent bent pins. Press the retaining latches firmly outward before seating the connector, then snap them shut to lock the cable in place.
- Rack Mounting Integrity: Slide the board along the card guide rails until the VME edge connector seats completely into the backplane socket. Tighten top and bottom front-panel retaining screws to establish chassis ground continuity.