IS200TBTCS1C - Thermocouple Terminal Board

IS200TBTCS1C - Thermocouple Terminal Board IS200TBTCS1C - Thermocouple Terminal Board

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Part Number: IS200TBTCS1C
Manufacturer: General Electric
Series: Mark VIe
Product Type: Thermocouple Terminal Board
Technology: Surface Mount
Common Mode Voltage Range: ±5 V
Dimensions: 11.00 x 9.00 x 3.00
Operating temperature: 0 to 60 °C
No.of Ribbon Cable Connectors: Two, 20-pin
No.of VMEbus Connectors Two, 96-pin
No.of Analog Voltage Inputs: 6
Repair: 3-7 Day
Number of channels: 24
Span: -8 mV to +45 mV
Thermocouple types: E, J, K, S, T
Availability: In Stock
Country of Manufacture: United States (USA)

Functional Description

IS200TBTCS1C is a Thermocouple Terminal Board developed by GE. It is a part of Mark VIe control system. The thermocouple terminal board is a versatile and essential component used for thermocouple temperature measurement in various industrial applications. This board is specifically designed to accommodate up to 24 type E, J, K, S, or T thermocouple inputs, providing a wide range of options to suit different temperature measurement requirements.


  • To facilitate secure and organized connections, the thermocouple inputs are carefully wired to two barrier-type blocks on the terminal board. These barrier-type blocks ensure the isolation and protection of the signal lines, preventing any potential interference or cross-talk between the inputs. This design feature enhances the accuracy and reliability of temperature measurements and maintains the integrity of the data being transmitted.
  • Communication between the terminal board and the I/O processor is efficiently established through DC-type connectors. These connectors provide a standardized and reliable interface for data transmission, allowing seamless communication between the terminal board and the control system's I/O processor.
  • The thermocouple terminal board, with its capacity to handle multiple thermocouple inputs and its robust barrier-type block wiring, streamlines the process of measuring temperatures in industrial settings. The use of DC-type connectors for communication ensures efficient data transfer and integration with the I/O processor, making the board a valuable and dependable component in temperature monitoring and control systems.


  • The board is designed with a straightforward and efficient wiring configuration to accommodate multiple thermocouple inputs. Each thermocouple is directly wired to two I/O terminal blocks, providing a reliable and direct connection for precise temperature measurements. These terminal blocks are removable and securely mounted on the terminal board, held in place with two screws to ensure stability and ease of maintenance.
  • With each I/O terminal block featuring 24 terminals, there is ample space to accept wires up to #12 AWG in size, allowing for flexibility in choosing suitable thermocouple wire gauges for specific temperature measurement applications. The use of removable terminal blocks simplifies the installation process, enabling quick replacement or modification of thermocouple connections as needed.
  • To enhance the overall performance and accuracy of the temperature measurements, a shield terminal strip is integrated into the design. This shield terminal strip is attached to the chassis ground and is located on the left side of each terminal block. This shielding mechanism helps mitigate electromagnetic interference and external noise, ensuring reliable and precise temperature data acquisition.
  • In Mark VI systems, the cabling process involves connecting the board's J-type connectors to the I/O processors located in the VME (VersaModule Eurocard) rack. This cabling scheme enables data transmission from the thermocouple terminal board to the I/O processors, where temperature data is further processed and utilized for control and monitoring purposes.
  • In contrast, Mark VIe systems utilize I/O packs that directly plug into the board's J-type connectors. The number of cables or I/O packs required in both Mark VI and Mark VIe systems depends on the level of redundancy needed for the specific application. Redundancy is crucial for maintaining system reliability and fault tolerance, and the choice of redundant cables or I/O packs ensures uninterrupted operation even in the event of a failure.


  • Connection Points: The terminal board typically has multiple terminals where the thermocouple wires can be securely connected. These connections are usually labeled to indicate the type of thermocouple that should be connected to each terminal.
  • Material Compatibility: Since different types of thermocouples are made from different metal combinations (e.g., Type K, Type J, Type T, etc.), the terminal board needs to be designed with appropriate material compatibility to prevent interference with temperature measurements.
  • Isolation: Terminal boards often have built-in isolation to prevent electrical interference or noise from affecting the accuracy of temperature measurements. This is especially important in industrial settings where there might be other electrical equipment nearby.
  • Mounting: Thermocouple terminal boards can be designed for various mounting options, such as panel mount, DIN rail mount, or surface mount, depending on the specific application and installation requirements.
  • Signal Conditioning: Some advanced terminal boards might include signal conditioning features like cold junction compensation. This compensates for the temperature at the point where the thermocouple wires connect to the terminal board, helping to improve the accuracy of temperature measurements.
  • Industrial Use: Thermocouple terminal boards are commonly used in various industries such as manufacturing, HVAC systems, scientific research, and process control. They play a crucial role in maintaining accurate and reliable temperature monitoring and control.

World of Controls has the most comprehensive collection of GE Mark VIe components. Please contact WOC as soon as possible if you require any extra information.

Frequently Asked Questions

What is IS200TBTCS1C?
It is a Thermocouple Terminal Board developed by GE

What is the significance of the remote placement capability for thermocouples?
The remote placement capability enables the installation of thermocouples in distant or challenging locations, allowing for temperature measurements in various parts of the industrial process or turbine system.

How does the component address high-frequency noise issues?
It is equipped with high-frequency noise suppression capabilities. This feature filters out unwanted electrical noise, ensuring accurate and reliable temperature measurements, even in environments with significant electromagnetic interference.

What are cold junction reference devices, and how do they enhance thermocouple accuracy?
Cold junction reference devices compensate for temperature variations at the thermocouple terminals. They provide a stable and accurate reference point for thermocouple readings, leading to improved measurement accuracy and reliability.