Overview
The GE IS200TDBTH6A, also cataloged as the IS200TDBTH6A Discrete Input/Output Terminal Board, operates as a dedicated hardware component for contact signal processing and relay output execution within GE Mark VIe control system platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS200TDBTH6A |
| Brand | General Electric (GE) |
| Series | Mark VIe |
| Product Type | Discrete Input/Output Terminal Board |
| Origin | United States |
| Dimensions | 17.8 cm wide x 33.02 cm |
| Operating Temp | -30 to +65 deg C |
| Power Consumption | +5 VDC power requirement |
| Number of Channels | 24 discrete input channels |
| Input Voltage | 24 VDC contact input |
| Input Filter | Hardware filter |
| AC Voltage Rejection | 12 V RMS |
| Relay Channels | 12 form-C relay outputs |
| Mounting Type | Flat mount or DIN-rail mount |
| Technology | Surface Mount Technology (SMT) |
| Manual Reference | GEH-6721L |
Industrial Control Bus and I/O Architecture
The IS200TDBTH6A operates as a TMR contact input/output terminal board within the GE Mark VIe system architecture. It processes 24 isolated contact inputs using external wetting voltage sources, including nominal 24 VDC, 48 VDC, or 125 VDC configurations.
The board integrates hardware noise suppression circuits to reduce surge interference and high-frequency electrical noise on contact input signals. Additionally, the terminal board provides 12 form-C relay outputs through optional relay interface configurations.
For Mark VIe communication, the TDBT board connects with PDIO I/O packs through D-type connectors. The I/O packs communicate with controllers through Ethernet network links. Therefore, each TMR controller connection requires an individual PDIO network path, and a single PDIO I/O pack cannot provide complete TDBT operation.
GE industrial control platforms commonly use deterministic Ethernet communication and modular I/O density scaling to expand controller signal capacity. The IS200TDBTH6A follows this architecture by separating field termination, contact conditioning, and controller communication functions.
Frequently Asked Questions
Q: Does the IS200TDBTH6A support direct connection to GE Mark VIe controllers?
A: The IS200TDBTH6A requires PDIO I/O packs for communication with Mark VIe controllers. The terminal board itself provides field signal termination and relay interface functions.
Q: What type of field signals can the IS200TDBTH6A process?
A: The board processes isolated discrete contact inputs and provides relay output channels. Contact inputs require an external DC wetting voltage source.
Q: Does the IS200TDBTH6A provide built-in signal filtering?
A: Yes. The terminal board includes hardware input filtering and noise suppression circuits for contact input protection.
Field Installation Guidelines
- Install the IS200TDBTH6A on the specified sheet metal carrier with the required plastic insulator assembly.
- For DIN-rail installations, verify mechanical retention and grounding continuity before wiring field connections.
- Use appropriate industrial wiring practices for the two terminal block sections:
- TB2 terminals are assigned for contact input circuits.
- TB1 terminals are assigned for relay output circuits.
- Route input signal wiring separately from high-current switching conductors to reduce electrical interference.
- Connect cable shields according to the cabinet grounding design and use dedicated shield termination points.
- Verify external wetting voltage polarity before energizing contact input circuits.
- Confirm PDIO I/O pack connections through the correct JR1, JS1, and JT1 communication interfaces before system commissioning.
