• Brand: GE General Electric
• Full Model Number: DS200SIOBH1AAA
• Lifecycle Status: Legacy / Obsolete
• Core Function: Mark V SC2000 VME I/O interface and signal-processing board
• Top 3 Technical Specs: 20 hardware jumpers; 18 switches across 3 switch blocks; 1 status LED and 40-pin connector
• System: GE Mark V Speedtronic turbine control system
• Board Configuration: SIOB functional acronym; A/A/A functional and artwork revisions
• PCB Protection: Conformal coating
• Stock & Condition: Availability and exact condition to be confirmed before PO; New Surplus or Tested Stock subject to quotation

The DS200SIOBH1AAA is documented as a GE Mark V DS200-series SC2000 VME I/O board, with 20 jumpers, three six-position switch blocks, an LED, and a 40-pin connector.

Obsolescence & Supply Chain Deep Dive

When a legacy GE Mark V rack develops an I/O board fault, sourcing the exact DS200 revision can become the main schedule constraint. GE Mark V DS200 hardware is a legacy platform, and current availability depends largely on existing industrial inventory rather than normal OEM production. The DS200SIOBH1AAA is identified as a VME I/O card for the Mark V architecture, making an exact-revision spare useful when the objective is to restore an existing rack rather than redesign the turbine control system.

For an operating Mark V installation, replacing one failed board can avoid the engineering, validation, documentation, and commissioning costs associated with a broader control-system migration. The economic case therefore depends on downtime exposure, engineering labor, and the remaining service life of the installed system—not simply the purchase price. Configuration matters: the replacement board has 20 jumpers and 18 switches, so the original board’s physical settings should be documented before removal and reproduced on the replacement (a small configuration error can prevent correct operation).

Compatibility & Replacement Matrix

Field Traps — Watch Out

• Jumper and switch mismatch: The DS200SIOBH1AAA uses 20 jumpers and three switch blocks containing 18 switches in total. The replacement must reproduce the configuration required by the existing application.
• Revision mismatch: Do not approve a visually similar SIOB board solely because the DS200SIOBH1 prefix matches. Confirm the complete DS200SIOBH1AAA part number and revision before installation; related SIOB variants such as DS200SIOBH1ABA are separately identified in available documentation.
  

  GE DS200SIOBH1AAA

Quality Assurance & Testing SOP

A controlled pre-shipment inspection should be performed against the exact GE DS200SIOBH1AAA identification rather than relying only on the DS200 family number.

• Part-number verification: Check the GE identification label, board marking, revision information, and visible assembly details against the purchase specification.
• OEM anti-counterfeit visual inspection: Inspect labeling, PCB artwork, connector construction, solder quality, component markings, coating condition, and evidence of unauthorized rework.
• Physical inspection: Check the PCB for corrosion, cracked components, damaged traces, bent pins, contamination, connector damage, and conformal-coating defects.
• Jumper verification: Record the installed position of all 20 jumpers before functional testing.
• Switch verification: Record all 18 switch positions across the three switch blocks and compare them with the customer’s required configuration.
• Power-on self-test: Where the available test fixture and Mark V test procedure permit, energize the board and verify expected LED behavior without abnormal indication.
• I/O functional test: Exercise applicable I/O paths using a controlled test fixture or approved Mark V test environment; verify signal response against the configured application.
• Load testing: Apply representative electrical loads within the approved test limits and monitor signal stability, connector integrity, and board behavior.
• Burn-in observation: Monitor the unit under controlled operating conditions when the customer’s required QA level calls for extended testing.
• Final documentation: Record serial/identification data, visual inspection results, configuration settings, test date, and inspector approval before packing.

Because the available technical documentation emphasizes board configuration and LED-based status checking, the exact electrical test procedure should follow the applicable GE Mark V documentation and the customer’s site test limits rather than an assumed universal test profile.

Procurement & Lifecycle FAQ

Is the GE DS200SIOBH1AAA genuinely in stock, and what is the cutoff for emergency shipping?

Stock status should be confirmed against the physical unit before the PO is released. For emergency requirements, request confirmation of quantity, exact revision, condition, test status, packing completion, and same-day shipping cutoff at quotation stage. Public inventory listings for this exact part are not consistent, so live stock confirmation is important.

How do you verify the condition and authenticity of an obsolete DS200SIOBH1AAA?

The unit should undergo part-number verification, PCB and label inspection, connector inspection, configuration inspection, and functional testing where the appropriate Mark V test equipment is available. For surplus stock, request photographs of the actual unit, identification label, PCB revision, and test record before shipment.

Are there firmware compatibility issues?

The principal concern is not a conventional firmware-flash requirement but hardware configuration and exact revision matching. The DS200SIOBH1AAA has 20 jumpers and 18 switches, and these settings must correspond to the installed Mark V application.

Is this a direct replacement for another DS200SIOBH1 variant?

Do not treat every DS200SIOBH1-family board as interchangeable. The complete suffix matters. The DS200SIOBH1AAA, DS200SIOBH1ABA, and other related variants are separately identified in available product documentation, so engineering approval should be based on the exact installed part number and application documentation.

What are the warranty and return terms?

Warranty duration and return conditions should be stated on the quotation or pro forma invoice before purchase. For obsolete or surplus GE boards, the quotation should also define the accepted condition, test coverage, DOA policy, return window, and whether the warranty covers the board itself or only verified functional defects.