1. Product Overview

2. Key Hardware Features

• Board Type: RST Extended Analog Termination Board, compatible with Mark V standard cabinet slots, supports Simplex and TMR triple‑modular redundancy architectures, suitable for LM6000 and other turbine RST control systems.

• Interface Configuration: Equipped with 2 large terminal blocks (107 signal terminals per block), 3 × 34‑pin connectors, 2 jumpers, 3 test points (TP1/TP2/TP3) for connecting field sensors, actuators and upper‑level control boards (TCC/TCE), realizing centralized signal access and expansion.

• Signal Processing: Onboard signal isolation, filtering and level‑matching circuits, supports analog voltage/current signal conditioning, provides 2500Vrms electrical isolation between field side and control system side to suppress industrial electromagnetic interference.

• Electrical & Environmental: 24VDC power supply; operating temperature -40°C to +85°C, industrial‑grade wide‑temperature design; PCB with conformal coating, anti‑vibration, corrosion‑resistant and EMI‑resistant for harsh power plant environments.

• Diagnosis & Maintenance: Integrated dedicated test points (TP1, TP2, TP3) for on‑site circuit testing and fault troubleshooting; modular design for easy installation, replacement and maintenance.

3. Core Functions

1. Analog I/O Terminal Expansion: Expands analog input/output channel capacity of Mark V/RST systems, connects more field analog sensors (pressure, temperature, flow, displacement) and actuators to meet multi‑parameter monitoring requirements of large‑scale units.

2. Signal Isolation & Conditioning: Performs electrical isolation, filtering, impedance matching and amplitude scaling on field analog signals (voltage/current), eliminates field interference, improves signal stability and accuracy, ensures reliable data transmission to the control core.

3. Reliable Signal Transmission: As a terminal interface, transmits conditioned analog signals to upper‑level control boards (TCCA/TCCB) for A/D conversion and control calculation; receives control commands and outputs to actuators to realize closed‑loop control.

4. Field Wiring & Testing: Provides large‑capacity wiring terminals for standardized field cabling; reserves dedicated test points for operation and maintenance personnel to detect channel, power and signal status online, quickly locate faults and reduce downtime.

5. Redundancy Compatibility: Compatible with Mark V TMR triple‑modular redundancy architecture, supports redundant configuration to ensure continuous operation of the control system and avoid single‑point failure shutdown.

4. Applications

• Power Industry: Analog I/O terminal expansion for Mark V/RST control systems of LM6000 gas turbines and steam turbines in combined‑cycle and gas power plants;

• Industrial Sector: Analog signal acquisition and control terminals for heavy‑duty power units and industrial drive equipment in petroleum, chemical and metallurgical industries;

• Scenarios: Analog channel expansion, spare parts replacement, unit overhaul, control system upgrade and retrofitting of old units for Mark V systems.