Configured for discrete signal termination in Mark V control system architectures, the GE FANUC DS200DTBDG1AAA (DS200DTBDG1 Discrete Terminal Board) provides direct physical signal distribution for turbine discrete input and output circuits. This component serves as the primary interface between field-mounted instrumentation and the Mark V I/O packs, ensuring deterministic signal routing across the control network.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DS200DTBDG1AAA |
| Brand | GE FANUC |
| Origin | United States |
| Weight | 0.60 kg |
| Dimensions | 25.0 cm x 10.0 cm x 8.0 cm |
| Operating Temp | -30 deg C to +65 deg C |
| Power Consumption | Passive signal distribution |
| Signal Voltage | 28 VDC nominal |
| Voltage Range | 18 VDC to 32 VDC |
| Channel Capacity | 24 discrete points |
| Current Rating | 2.0 A per terminal |
| Mounting Style | DIN-rail or panel mount |
Backplane Bus Communication and Signal Isolation
The DS200DTBDG1AAA utilizes dual 50-pin female connectors to facilitate deterministic communication with the Mark V I/O packs. This hardware ensures signal integrity through galvanic isolation rated at 500 VAC RMS channel-to-ground, protecting the control logic from field-level transient voltages. Firmware flash compatibility is managed at the I/O pack level; however, the terminal board must maintain precise impedance paths to prevent signal latency during discrete state transitions.
Frequently Asked Questions
Q: Does the terminal board support hot-swapping under load?
A: No. The DS200DTBDG1AAA is not designed for hot-swapping. The system must be de-energized to prevent damage to the dual 50-pin connectors and the associated backplane circuitry.
Q: What is the maximum torque allowed for the screw terminal blocks?
A: The terminal screws are rated for a maximum torque of 0.5 Nm. Exceeding this value may strip the threads or damage the integrity of the terminal block housing.
Q: Can this board be used for high-voltage switching applications?
A: No. The board is rated for 28 VDC nominal operation. It is strictly limited to low-voltage discrete input and output signals within the 18 VDC to 32 VDC range.
Field Installation Guidelines
- Verify that the power supply to the turbine discrete circuits is isolated.
- Secure the board to the DIN-rail or mounting panel using all four M4 screw holes to ensure mechanical stability.
- Utilize stranded copper wire between 12 AWG and 24 AWG for field connections.
- Strip insulation to the minimum required length and tighten terminal screws to 0.5 Nm.
- Align the dual 50-pin connectors carefully with the I/O pack to avoid bending the contact pins.
- Confirm that the input voltage remains within the 18 VDC to 32 VDC range before initiating system startup.
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| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
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