Description   Product Introduction The GE IS200DRLYH1AED is a Mark VIe series digital output module providing 16 channels of relay outputs with a specific hardware configuration that is not available in standard DRLYH variants. This I/O pack interfaces with solenoids, motor starters, alarm annunciators, and other discrete field devices requiring dry contact outputs, with a particular output stage and component selection for specialized applications. The AED suffix denotes a specific hardware build that combines a unique relay configuration with particular output protection and filtering characteristics. In our field experience, this variant was produced for specific OEM applications where the standard H1A or AAA characteristics were not optimal. The AED’s output stage includes specific snubber circuits and contact protection that make it particularly suitable for installations with highly inductive loads or specific EMC requirements. For plants that have standardized on a particular OEM turbine control package and require this specific relay module revision, the AED provides the exact drop-in replacement needed.   Key Technical Specifications Parameter Value Model Number IS200DRLYH1AED Series Mark VIe IS200 Hardware Revision AED (specific hardware configuration) Number of Outputs 16 digital output channels Output Type Form-A (SPST) normally-open relay contacts Contact Rating 2 A resistive at 250 V AC or 30 V DC Contact Material Silver alloy (specific contact composition) Minimum Load 10 mA at 5 V DC Coil Voltage 24 V DC (from backplane) Response Time 10 ms typical Contact Life 100,000 cycles at rated load Isolation 2,500 V AC channel-to-backplane, 2,500 V AC channel-to-channel Diagnostics Output state feedback, coil fault detection Output Protection Specific snubber circuit (unique to AED) Operating Temperature −30°C to 65°C (ambient, with 0.5 m/s airflow) Power Supply 24 V DC from backplane, 370 mA typical Bus Interface VME-based high-speed parallel bus Firmware Verify compatibility with ToolboxST/ToolboxEX versions ≥6.0 Termination Board Compatibility TS200DRY1, TS200DRY2 LED Indicators Per-channel output state, power, module fault Socketed Relays Yes (field replaceable)   Key Selling Points & Differentiators Specific hardware configuration – unique output protection and snubber circuit design not available in other DRLYH variants. Essential for applications with specific inductive load requirements. 16 channels of dry relay contacts – provides galvanic isolation for each output. Suitable for switching AC and DC loads up to 2 A. Socketed, replaceable relays – relays are plug-in type. Replace individual contacts without replacing the entire module. Saves significant cost over time. Per-channel status LEDs – each output has a dedicated LED for immediate visual feedback. Field technicians can verify outputs without software. Rigorous 48-hour burn-in – each unit cycles all 16 relays at 1 Hz with specific test loads. We verify timing, contact resistance, and snubber performance. 3-year warranty on hardware – backed by our in-house repair depot with average 48-hour turnaround. Dedicated DRLYH swap-pool ensures rapid replacement.   Frequently Asked Questions (FAQ) Can I hot-swap this IS200DRLYH1AED into a running Mark VIe system? We strongly advise against it. The DRLYH series has shown unpredictable behavior when inserted into a powered backplane due to the relay coil inrush currents. Schedule a controlled outage, de-energize the rack, and swap it during planned maintenance. What is the difference between the IS200DRLYH1A, the H1AAA, and this AED? The AED has a specific output protection circuit and snubber design that is not available in standard variants. The H1A is the standard configuration. The H1AAA adds diagnostics. The AED was produced for specific OEM applications with particular EMC or inductive load requirements. Use the H1A for standard applications, H1AAA for diagnostics, and AED only if you need this specific hardware configuration for compatibility reasons. I currently have an IS200DRLYH1A installed. Can I replace it with this AED? Physically, yes – same slot, same termination board. However, the AED has different snubber characteristics that may affect the switching performance with inductive loads. The module should function, but the switching waveform will differ. We recommend verifying field device performance after installation. In some cases, no issues are seen; in others, the snubber may affect solenoid release timing. What is the specific output protection on the AED? The AED includes specific snubber circuits (RC networks) across the relay contacts that are tuned for particular inductive load characteristics. This reduces arcing and extends contact life when switching solenoids and contactors. The H1A and H1AAA have different snubber configurations. The AED’s snubber was specified for specific OEM applications. Are the relays field replaceable on the AED? Yes. The relays are socketed and can be replaced with standard Mini-DIP relay types. However, the AED uses relays with specific coil characteristics and contact material. To maintain the AED’s performance characteristics, use the specified replacement relay type. We can supply exact replacement relays if needed. How do the snubber characteristics affect switching? The snubber circuits reduce voltage spikes when the relay opens. This protects the contacts from arcing and extends life. However, they also slow the turn-off transient and can affect solenoid release timing. For applications with fast-responding solenoids, this can be critical. The AED’s snubber was specified for specific application timing requirements. How do I verify this is a genuine GE module? We source exclusively from GE-authorized liquidations. Our verification includes OEM packaging inspection, serial number cross-check against GE records, and PCB inspection for GE-specific markings. We test all 16 relay contacts for contact resistance, timing, and snubber performance. We provide PCB photographs upon request. Will I lose any configuration data when I replace the module? Relay output modules have no user-configurable parameters stored locally. Once you install the replacement module, the controller will recognize it and resume controlling the outputs. No configuration is required. What is the expected lifespan of this unit? We see MTBF around 115,000 hours for the AED revision excluding relay wear. The snubber circuits extend contact life in inductive load applications. With typical solenoid switching, expect 8-12 years of service before relay replacement. What happens if the module fails within the warranty period? We cross-ship a tested replacement from our dedicated DRLYH swap-pool the same business day. You return the failed unit within 15 days. Our repair depot has an average 48-hour turnaround. You receive an AED replacement – not a downgraded H1A. Which termination board should I use with this module? The IS200DRLYH1AED mates with GE’s TS200DRY1 or TS200DRY2 termination boards. Check ribbon cable orientation; pin 1 has a red stripe. We include a wiring diagram PDF with every order. 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