The GE DS200TBQBG1ACB, also cataloged as the DS200TBQB RST Termination Board, operates as a dedicated hardware component for field analog signal routing and termination within Speedtronic Mark V Turbine Control System platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DS200TBQBG1ACB |
| Brand | General Electric |
| Origin | USA |
| Weight | 1.18 kg (2.60 lbs) |
| Dimensions | 279.4 x 177.8 x 50.8 mm (11.0 x 7.0 x 2.0 in) |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Passive Board (Passive bus drawing < 2.0 W) |
| Terminal Blocks | 2 blocks (77 screw terminals each, 154 terminals total) |
| Multi-pin Connectors | 3x 34-pin ribbons, 3x 16-pin ribbons |
| Configurable Hardware | 15 On-board Berg Jumpers |
| Circuit Board Coating | Standard Normal Conformal Coating |
Backplane Bus & Firmware Architecture
The DS200TBQBG1ACB module interfaces directly with Mark V I/O processor cores to support high-density signal distribution without introducing protocol latency. Communication across internal multi-pin ribbon cables relies on hardwired parallel signal traces designed to maintain signal integrity without firmware dependency. The hardware layout features firm logic routing for analog field sensor points directly to primary core controllers. Firmware flash compatibility is governed by the core processor board connected to the ribbon buses, allowing the passive termination architecture to remain backward and forward compatible across Mark V revisions.
Frequently Asked Questions
Q: Does the DS200TBQBG1ACB support hot-swapping during turbine operation?
A: No. Replacing the board requires shutting down power to the associated Mark V core or panel rack section to avoid transient signal surges or ground loops across field inputs.
Q: What is the purpose of the 15 on-board jumpers?
A: The 15 Berg jumpers select signal circuit configurations, grounding paths, and channel routing between field terminal connections and internal ribbon cable pins.
Q: How are copper signal wires secured to the termination board?
A: External field wiring connects directly via two dual-row terminal blocks containing 154 total screw terminals supporting up to #14 AWG copper wiring.
Field Installation Guidelines
- Verify panel power isolation prior to attaching or disconnecting 34-pin or 16-pin ribbon connectors.
- Maintain a minimum 3-inch separation between analog signal cabling terminated at blocks and high-voltage AC power lines to prevent signal interference.
- Earth ground shields must be secured at designated single-point grounding bars inside the enclosure according to Mark V wiring diagrams.
- Torque terminal screws to 0.5 to 0.6 Nm (4.4 to 5.3 in-lbs) to maintain stable physical contact without stripping thread engagements.
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