IS200DTBBH1A - Terminal Board

SPECIFICATIONS

Part No.: IS200DTBBH1A
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Temperature Operating: 0 to 60 o C
Product Type: Terminal Board
Availability: In Stock
Series: Mark VIe

Functional Description

IS200DTBBH1A is a Terminal Board developed by GE. It is a part of Mark VIe series. It is specifically involved in handling contact inputs and ensuring reliable communication through ribbon cables. It connects with the PMVD and other terminal boards like DTBA, DTBC, and DTBD to enhance diagnostic capabilities.

Connectivity and Integration

The terminal board functions as an intermediary for 96 contact inputs that are transferred from other terminal boards such as DTBA, DTBB, DTBC, and DTBD. These inputs are routed to the MVRD application board, which handles the data processing and management tasks.

• Primary Interface: The terminal board primarily connects to the PMVD module, which is responsible for managing communication between the terminal boards and the TCRA relay boards. This integration pathway enables the seamless flow of data, ensuring the system functions with minimal downtime.
• Ribbon Cable Communication: The data transmission is facilitated via ribbon cables, which link the terminal board with other components of the system. These cables carry essential signals and contact inputs, ensuring the system remains responsive to external signals and can adjust its behavior accordingly.
• Comprehensive Monitoring: This structured communication pathway allows for robust monitoring and control of various contact points critical to system performance, providing essential feedback to operators and system controllers.

Enhanced Diagnostics Features

• Break Detection: Detect breaks in the ribbon cable and contact input wiring. This means that if there is any disruption or disconnection in the wiring, the system can promptly alert operators, allowing for immediate corrective action. This break detection feature ensures system integrity by quickly identifying faults before they lead to significant operational issues.
• Reliability of Communication: By actively monitoring the wiring connections, the terminal board ensures that communication between various components of the system remains intact, preventing costly downtime or failures.
• Improved Diagnostic Capabilities: It also supports better diagnostic feedback during system operation, helping technicians identify potential problems early. This feature is especially useful in complex systems where multiple points of contact are in use, enhancing overall system reliability and efficiency.

Installation Requirements

During installation, it is crucial to securely mount the board  to the front core board holder. This secure mounting ensures stable operation and prevents mechanical issues that could affect performance. Additionally, the system requires a wetting voltage greater than 90V to function correctly, ensuring optimal electrical contact and signal reliability.

Verification and Safety Measures

Incorporates sophisticated verification mechanisms to enhance safety and reliability:

• Ribbon Cable Integrity Monitoring: The terminal board features sensing logic to detect any broken signal conductors within the ribbon cables. This proactive approach helps in identifying communication failures caused by damaged cables. By catching these issues early, the system can maintain consistent data integrity, which is vital for the overall operation of the control system.
• External Contact Safety: Optionally, external contacts can be protected by installing resistors across each contact being monitored. This measure helps to safeguard the system against issues caused by open wiring or other contact-related problems. The resistors add an additional layer of protection, ensuring the system’s stability and preventing faults from impacting the performance.
• Increased Safety and Reliability: These features not only enhance the overall diagnostic capabilities of the system but also mitigate risks associated with electrical faults, such as open circuits or wiring issues, which could otherwise disrupt normal system operation.

The WOC team is always available to help you with your Mark VIe requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IS200DTBBH1A?
It is a Terminal Board developed by GE under the Mark VIe series.

What are the installation requirements for the terminal board?
When upgrading to PMVDs from TCDAs, the DTBB (along with DTBA, DTBC, and DTBD) must be securely mounted to the front core board holder. Additionally, a wetting voltage greater than 90V is required for proper operation.

How are ribbon cables verified in the system?
The ribbon cables connecting are verified using sensing logic to detect any broken signal conductors. This ensures that any disconnections or malfunctions in the wiring are promptly identified.

Can external contacts be checked for open wiring in the system?
Yes, external contacts can optionally be checked for open wiring by installing resistors across each contact being checked. This provides an added layer of safety and reliability.