IS210DSVOH1AA | GE Mark VIe DSVO Board | In Stock

Description

Product Introduction

The GE IS210DSVOH1AA is a VMEbus digital output board from the Mark VIe Speedtronic series, purpose-built for high-current discrete output control in turbine applications. This board provides optically isolated outputs for directly driving solenoid valves, actuators, and other higher-current field devices—critical for turbine sequencing, protection, and control functions. The “AA” suffix indicates a conformal coated board with enhanced moisture and contaminant resistance for harsh environments, combined with the H1A revision features.

What sets the DSVOH1AA revision apart is its 16-channel capacity with full optical isolation (2,500 VDC), high-current drive capability (1.0 A continuous per channel), per-channel status monitoring, and the acrylic conformal coating that protects output driver circuitry from humidity, salt spray, and airborne particulates. Each output features 24 VDC nominal operation, short-circuit protection, over-temperature protection, and output state read-back to confirm the commanded state. For system integrators requiring high-current digital output capability with environmental protection for direct valve and actuator control in demanding installations, this board is the direct OEM solution.

Key Technical Specifications

Key Selling Points & Differentiators

• Conformal Coated for Harsh Environments: The “AA” suffix provides acrylic coating that protects output driver circuitry against humidity, salt spray, and airborne contaminants—ideal for offshore platforms, coastal plants, and high-humidity installations.
• High-Current Outputs: 1.0 A continuous per channel—directly drives solenoid valves and small actuators without interposing relays.
• Full Optical Isolation: 2,500 VDC isolation protects the backplane and control system from field wiring faults.
• Output State Verification: Per-channel read-back confirms the commanded output state—critical for diagnostic and safety applications.
• Short-Circuit Protection: Per-channel protection with auto-recovery prevents damage to output drivers.
• High-Speed Scanning: 1 ms scan rate for fast output response in protection and interlock applications.
• Robust Design: Designed for high-cycle inductive loads with built-in back-EMF protection.
• Live Test Verified: Every board undergoes a 48-hour burn-in with all 16 outputs exercised under load. We log response time, short-circuit protection, and diagnostic performance. Coated boards are visually inspected for complete coverage and absence of bubbles.
• 90-Day Warranty: Covers functional defects. If it fails under normal operating conditions, we replace it. No restocking fee for verified returns.
• OEM Traceability: All units come from audited surplus channels with original GE anti-static bags and serialized labels.
• Configuration Backup Service (Free): Upon request, we extract and archive your existing board’s firmware version and configuration before shipment.

Frequently Asked Questions (FAQ)

Q: What does the “AA” suffix mean on IS210DSVOH1AA?

A: The “AA” indicates conformal coating combined with the H1A revision. Specifically, it means the board has an acrylic conformal coating (0.02–0.05 mm) applied to the entire PCB assembly for moisture and contaminant protection, along with all H1A features (16 high-current outputs, 1.0 A continuous rating, short-circuit protection). Electrically and functionally they are identical in terms of output capability. The coating adds protection; the H1A features provide high-current digital output capability.

Q: What is the difference between IS210DSVOH1A and IS210DSVOH1AA?

A: The H1A is non-coated; the H1AA has conformal coating. The coating protects against humidity, salt fog, and chemical vapors. If your cabinet is in a coastal area, offshore platform, or high-humidity environment, the AA variant is strongly recommended. In a clean, climate-controlled room, the H1A is sufficient and costs less. If your existing board is coated, you must replace it with a coated board (AA) because the uncoated version will fail faster in that environment.

Q: Does the conformal coating affect output performance, short-circuit protection, or diagnostics?

A: No. The coating is applied after functional testing, so it does not affect the electrical characteristics of the output driver circuits. Current capacity, protection thresholds, and diagnostic performance are identical to the non-coated H1A. The coating only provides environmental protection.

Q: What is the difference between IS210DSVOH1AA and IS210DSCBH1A?

A: The DSVOH1AA provides 16 high-current outputs (1.0 A per channel) with conformal coating for directly driving solenoid valves and actuators. The DSCBH1A provides 32 lower-current outputs (0.5 A per channel) without coating. Choose DSVOH1AA for higher current applications requiring environmental protection. Choose DSCBH1A for maximum channel density.

Q: Can I use this board to directly control solenoid valves?

A: Yes. The outputs are rated for 1.0 A continuous per channel, which covers most small to medium solenoid valves. For larger solenoids or inductive loads exceeding 1.0 A, we recommend using an interposing relay or contactor. Always install a suppression diode across DC coils to protect the output driver from back-EMF.

Q: Is this board hot-swappable?

A: No. The Mark VIe VME backplane does not support live insertion. You must de-energize the rack, ground yourself, and wait 30 seconds for bulk capacitors to discharge. We’ve seen field crews pull a DSVO while the cabinet was still powered—it damaged the output drivers and the backplane connector.

Q: What is the typical lead time for this part?

A: We stock these on the shelf—usually ship within 24 hours of order placement and payment confirmation. For international orders, add 3–5 days for customs. If you need expedited (overnight air), coordinate with our logistics team.

Q: Does this board work with the newer Mark VIeS (SIL-rated) cabinets?

A: To be direct: no. The IS210DSVOH1AA is not SIL-certified. It’s meant for standard Mark VIe industrial control. The SIL-rated systems use the IS220DSVO (with additional redundancy, diagnostic coverage, and separate safety shutdown path). Mixing them violates your site’s safety integrity level.

Q: What’s your return policy if this doesn’t solve my digital output issue?

A: If the board is electrically functional (passes our QC test) but doesn’t correct your fault, we’ll accept a return within 30 days provided the board shows no physical damage and the connectors are intact. We do charge a 15% restocking fee if the fault was due to field wiring issues, configuration errors, or toolkit compatibility problems. We’ll work with you over the phone or email to diagnose the problem before we ship.

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