GE DS200TBCBG1AAA 4-20 mA RTD Input Termination Module

Product Details:

The GE DS200TBCBG1AAA is a 4-20 mA RTD Input Termination Module designed for GE’s Mark V Series, a key component of GE Speedtronic Control Systems used in industrial turbine and automation setups. As a specialized termination module, its core role is to interface with RTD sensors—devices that measure temperature via resistance correlation—and manage 4-20 mA current loop signals (the industry standard for sensor data transmission. Positioned in location seven of the Mark V core, it serves as a landing point for RTD and 4-20 mA input signals, which are then transmitted to the TCCB in the core. Notably, it is one of three terminal boards in Mark V systems that accept isolated 21V DC excitation power inputs, and it offers flexible signal configuration: eight of its 4-20 mA input signals can be hardware-jumpered to 0-1 mA, while jumpers also determine whether inputs function as voltage or current signals.

Physically, the module is a long, narrow analog card featuring a long terminal block along one edge, vertical pin connectors, jumper switches, and resistor network arrays. Its voltage suppression and limitation rely on Mark V-series standardized components, including capacitors, resistors, diodes, and specialized integrated circuits. Key details about its hardware and specifications are also encoded in its product number: “DS200” confirms normal Mark V assembly and domestic U.S. manufacture; “TBCB” is the functional abbreviation for its termination module role; “G1” places it in Mark V Group 1 with a standard PCB protective coating; and the trailing “AAA” denotes two A-rated functional revisions and one A-rated artwork revision.

Key Features:
Dual-Signal Support for Temperature & Industrial Sensing: Specialized in handling both RTD temperature signals and 4-20 mA current loop signals—covering core industrial needs for precise temperature monitoring and standard sensor data transmission.

Flexible Signal Configuration via Jumpers: Enables two critical customizations: 1) Eight 4-20 mA inputs can be jumper-switched to 0-1 mA to match low-current sensor requirements; 2) Jumpers toggle inputs between voltage and current modes, adapting to diverse sensor and system interfaces.

Mark V Core Integration: Positioned in the Mark V core’s location seven, with dedicated JHH/JII connectors for signal transmission to the TCCB board—ensuring seamless integration into the Speedtronic Control System’s signal chain and avoiding compatibility gaps.

Isolated Excitation Power Compatibility: One of three Mark V terminal boards that accept isolated 21V DC excitation power inputs—protecting sensitive RTD and current signals from electrical interference and ensuring stable performance in high-noise industrial environments.

Standardized Voltage Protection: Relies on Mark V-series standardized components for voltage suppression and limitation—aligning with the series’ robust design principles and reducing component failure risks.

Clear Hardware Labeling for Maintenance: Features a long terminal block, distinct vertical pin connectors, and labeled jumper switches—simplifying wiring, troubleshooting, and replacement for technicians familiar with Mark V systems.