Why This Discrete Terminal Board Organizes Digital Field Signals
The GE IS200TDBTH2A terminates discrete input and output signals for Mark V turbines. This board connects field switches, limit sensors, and solenoid valves. It provides a central termination point for all digital I/O wiring. For this reason, the GE IS200TDBTH2A simplifies cabinet layout and field maintenance. It also reduces wiring errors by grouping related signals together.
Technical Specifications of the Board
We engineer this GE IS200TDBTH2A for clean discrete signal termination. It operates without an external power supply. The board features twenty termination positions for field wiring. Each position accepts 14‑22 AWG copper wires securely. On‑board capacitors filter transient noise from digital input lines.
| Specification | Value | Additional Notes |
|---|---|---|
| Full Model | GE IS200TDBTH2A | Discrete Terminal Board |
| Power Supply | Passive operation | No external power needed |
| Terminal Positions | Twenty positions | For discrete I/O wiring |
| Wire Gauge | 14‑22 AWG | Solid or stranded copper |
| Signal Filtering | On‑board capacitor array | Reduces contact bounce noise |
| Current Rating | 5A per terminal | Maximum continuous current |
| Voltage Rating | 250V AC / 30V DC | Isolation between terminals |
| Terminal Type | Screw clamp | Nickel-plated for corrosion resistance |
| Dimensions | 210mm x 115mm x 55mm | Fits Mark V termination racks |
| Weight | 0.44 kg (approximately) | Lightweight for easy mounting |
| Interface Type | Backplane connector + screw terminals | Gold‑plated for reliability |
| Component Count | 22 discrete components | Capacitors only for filtering |
Hardware Architecture and Signal Routing
The GE IS200TDBTH2A contains no active electronic components. This board relies on passive filtering for noise reduction. Moving to input side, terminal blocks receive signals from field switches. The board then routes these signals directly to the backplane connector. Moreover, the H2A revision adds additional ground reference points. This improvement reduces crosstalk between adjacent discrete channels.
Installation and Wire Transfer Guidelines
You must disconnect all field wiring before removing the old board. Label each wire with its corresponding terminal number on the GE IS200TDBTH2A first. Then transfer each wire to the exact same position on the replacement board. Verify all screw terminals tighten securely to prevent loose connections. Skipping this step may cause intermittent signal drops. Additionally, verify that each discrete input reads correctly after installation.
Details
| Weight | 0.1 kg |
|---|---|
| Dimensions | 25 × 108 × 127 mm |
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