Product Overview
The GE IS200TDBTH6A is a Discrete Input/Output Terminal Board designed for the Mark VIe series in distributed control systems (DCS). This board provides 24 group-isolated contact inputs and 12 form-C relay outputs, making it a versatile interface between field devices and the control system.
With a robust design that includes surface-mount technology and a conformal coating, the IS200TDBTH6A is built for reliability in demanding industrial environments. Its DIN-rail or panel mounting options simplify installation, while the on-board noise suppression protects against surges and high-frequency interference.
Technical Specifications
| Specification |
Value |
| Part Number |
IS200TDBTH6A |
| Manufacturer |
General Electric |
| Series |
Mark VIe |
| Number of Channels |
24 |
| Input Current |
24 V dc |
| Input Filter |
Hardware filter |
| AC Voltage Rejection |
12 V RMS |
| Number of Relay Channels |
12 |
| Power Requirements |
+5 V dc |
| Operating Temperature |
-30 to +65 °C |
| Technology |
Surface Mount |
| Size |
17.8 cm wide x 33.02 cm |
| Repair Time |
3-7 Days |
| Availability |
In Stock |
| Country of Origin |
United States |
| Manual |
GEH-6721L |
These specifications confirm the IS200TDBTH6A is engineered for precise signal conditioning and reliable relay control in Mark VIe systems. The hardware filter and AC voltage rejection capabilities ensure stable operation even in electrically noisy environments.
Applications
The IS200TDBTH6A is commonly used in turbine control systems, power generation plants, and industrial process automation. Its 24 isolated inputs can monitor contact closures from limit switches, pushbuttons, or auxiliary relays, while the 12 relay outputs drive actuators, alarms, or interlock circuits.
For example, in a gas turbine control system, the IS200TDBTH6A interfaces with field contacts to provide status feedback to the Mark VIe controller. The relay outputs can be used to trip breakers or activate warning lights, ensuring safe and efficient operation.
Its ability to accept a nominal 24, 48, or 125 V dc wetting voltage makes it adaptable to various field wiring schemes, reducing the need for external interface modules.
Installation & Setup
Mount the IS200TDBTH6A on a DIN rail using the included sheet metal carrier, or attach it to a cabinet panel via the optional sheet metal assembly. Use #18 AWG wires for connections to the two sets of 48 terminal blocks. Connect input circuits to the lower terminal block (TB2) and relay outputs to the upper terminal block (TB1).
For relay option boards, plug them into connectors JW1 and JW2 and secure them with the connector grips. If external power is required, wire it to the option board connector. Ensure proper grounding and shield termination to minimize noise.
Maintenance & Reliability
Regularly inspect the IS200TDBTH6A for dust accumulation, loose connections, or signs of corrosion. The conformal coating protects the PCB from moisture and contaminants, extending its service life. Check the resettable polymer fuses on the 24 V dc supply; they limit current to 0.5 A and automatically reset after overcurrent events.
Operating within the specified temperature range (-30 to +65 °C) and avoiding excessive vibration will maintain optimal performance. The board has no user-configurable jumpers, so maintenance is straightforward.
Compatibility & Integration
The IS200TDBTH6A is designed for use with Mark VIe systems. It connects to three PDIO I/O packs via D-type connectors, which communicate with the controllers over Ethernet. Each I/O pack is assigned to a specific controller (R, S, or T) for redundancy. Ensure that all three PDIO connections are properly linked to achieve full TMR functionality.
Selection Guide
When replacing or upgrading your Mark VIe I/O terminal board, confirm that your system requires the IS200TDBTH6A model. Verify the part number on your existing board and check the manual GEH-6721L for compatibility. This unit is in stock and available for immediate shipment from PLC Source PRO. Our team can assist with any technical questions to ensure you select the correct component.