Description
Product Specifications
- Origin: United States (USA)
- Weight: 1.55 lbs (0.70 kg)
- Dimensions: 6.25 inches x 4.0 inches x 1.2 inches
- Input Channels: 10 simplex analog inputs (4-20 mA or ±10 VDC)
- Connectivity: Two 36-terminal blocks for field wiring and two 50-pin connectors for I/O cables.
- Redundancy: Non-redundant (Simplex) design for standard control loops.
The GE IS200DTAIH1ACC is a termination module designed for the Mark VI Speedtronic control system, serving as the physical landing point for field analog signals. This “H1ACC” revision is optimized for simplex applications where high-density wiring is required within a compact footprint. It converts incoming field signals into a format compatible with the analog I/O processor modules, utilizing high-quality terminal blocks that ensure low-resistance connections and long-term signal stability in industrial power generation environments.
Model Comparison: IS200DTAIH1ACC vs. Similar Models
The IS200DTAIH1ACC is the simplex version of the terminal board family, distinguishing it from the IS200VTAIH1A, which is designed for VME-based rack systems. While both handle analog inputs, the DTAI series is typically used in specific cabinet configurations where space and simplified wiring are prioritized. The “ACC” suffix indicates a specific hardware revision that includes improved EMI shielding and updated terminal block materials compared to the original “AAA” version, ensuring better performance in electrically noisy environments.

GE IS200DTAOH1ABA IS210DTAOH1AA

GE IS200DTAOH1ABA IS210DTAOH1AA

GE IS200DTAOH1ABA IS210DTAOH1AA
Operational Guidelines
- Wiring Precision: Ensure all 4-20 mA loops are correctly polarized at the terminal block to prevent signal inversion or “Out of Range” alarms.
- Cable Seating: Firmly secure the 50-pin ribbon cables to the J-sockets; loose connections are a primary cause of intermittent diagnostic faults.
- Shield Grounding: Connect field cable shields to the designated ground bar on the terminal board to minimize high-frequency interference.
- Replacement: When replacing a board, verify that the revision level (ACC) matches or exceeds the existing board to ensure full compatibility with the Mark VI configuration files.
GE IS210DTAOH1AA | Analog Output Terminal Board
Product Specifications
- Origin: United States (USA)
- Weight: 1.40 lbs (0.64 kg)
- Dimensions: 6.25 inches x 4.0 inches x 1.1 inches
- Output Channels: 8 simplex analog output channels (typically 0-20 mA)
- Protection: Integrated suppression circuits for each channel to protect against field transients.
- Connectors: One 50-pin connector for connection to the I/O processor.
The GE IS210DTAOH1AA is a high-reliability terminal board used within the Speedtronic Mark VI and Mark VIe systems to manage analog output signals directed to field actuators and positioners. This module acts as the physical interface, providing secure termination for field wiring while maintaining signal integrity through integrated filtering components. Its design focuses on simplicity and durability, ensuring that the control signals generated by the processor are accurately transmitted to the end devices with minimal loss or distortion.
Model Comparison: IS210DTAOH1AA vs. Similar Models
The IS210DTAOH1AA is distinguished by its “IS210” prefix, which often indicates a specialized manufacturing run or a slightly different form factor compared to the standard “IS200” series. While functionally identical to the IS200DTAOH1A in terms of channel count and signal type, the IS210 version is often utilized in specific legacy or retrofitted cabinets. It lacks the redundancy features found in “T” (TMR) series boards like the TBAO, making it an ideal, cost-effective solution for non-critical simplex control loops.
Operational Guidelines
- Loop Power: Verify that the external loop power supply is within the specified 24 VDC range before connecting field actuators.
- Load Resistance: Ensure the total resistance of the connected field device and wiring does not exceed the board’s maximum driving capability (typically 600-800 ohms).
- Isolation: Use caution when probing terminals during live operation; accidental shorting between channels can damage the output drivers on the upstream I/O module.
- Mounting: Secure the board using the original standoffs to ensure a proper chassis ground, which is vital for the onboard transient suppression to function correctly.


