IS200DTBCG2A - Contact Output Termination Module

SPECIFICATIONS

Part Number: IS200DTBCG2A
Manufacturer: General Electric
Series: Mark VIe
Function: Contact Output Termination Module
Availability: In Stock
Country of Manufacture: United States (USA)

Functional Description

IS200DTBCG2A is a Contact Output Termination Module developed by General Electrics. It is a part of GE Mark VIe system. This module plays a role in discrete output signal termination, interfacing between the controller's output drivers and the field-connected contact-based devices such as solenoids, relays, and breakers. DTBC module provides reliable output signal routing, noise isolation, and protection for mission-critical applications in power generation, process automation, and turbine control.

Functional Role in the Mark VIe System

In the Mark VIe architecture, serves as a termination point for contact output signals from the digital core to field actuators. It is typically mounted within a Termination Interface Module (TIM) or I/O cabinet, facilitating organized wiring and shielding, and ensuring signal integrity during output transitions.

The DTBCG2A:

• Ensures electrical compatibility between the controller and field circuits.
• Supports fast switching of discrete outputs in response to control logic.
• Enables status indication and fault isolation through integration with system diagnostics.

This module is strategically located to optimize signal routing and minimize the distance between the core control logic (such as the I/O packs or controllers) and the final output devices.

Environmental and Electrical Robustness

Designed for harsh industrial environments, with features that ensure its resilience against:

• Electrical transients and voltage spikes (from inductive loads or switching circuits)
• Electromagnetic interference (EMI) and radio frequency interference (RFI)
• Thermal cycling, vibration, and humidity typical in field-mounted control cabinets

Protective elements such as transient voltage suppressors (TVS) and snubber circuits are incorporated to protect both the module and connected field equipment from electrical surges and ensure long-term operational stability.

System Cabling and Signal Separation Guidelines

Proper cabling and separation practices are essential for maintaining the performance and reliability of contact output modules in the Mark VIe system. GE recommends strict adherence to signal level separation to minimize crosstalk, interference, and transient coupling.

• Signal Level Segregation: Different voltage or signal types (e.g., digital vs. analog, control vs. power) must be routed in separate cableways unless explicitly allowed. Cables with similar signal levels should be grouped to simplify routing and shielding.
• Labeling and Identification: All interconnecting wires should be clearly labeled with their signal level and type for traceability, maintenance, and troubleshooting.
• Multiconductor Cabling: When routing signals of the same type between cabinets or components, multiconductor cables are preferred to maintain consistent impedance and reduce EMI.
• Crossing of Dissimilar Signals: When crossing signal cables of different levels (e.g., digital vs. analog), maintain 90° angles to minimize inductive coupling. If spatial constraints prevent adequate separation, use a grounded steel barrier at the crossover point.
• Minimizing Parallel Runs: Within terminal equipment or confined spaces, minimize the length of parallel runs between different signal levels. Keep such runs to under 1.5 meters (5 feet) wherever possible.
• Tray and Conduit Spacing: Refer to spacing tables provided in GE documentation. Where spacing = 0, signals may be routed together. For mixed-level cables, apply worst-case spacing rules to ensure safety and reliability.
• Grounding and Shielding: Ensure that all cable trays are well-grounded with continuous electrical bonding. Shielding should be provided by metallic conduit where applicable, especially for high-speed or high-voltage signal runs. 

WOC has the largest stock of Speedtronic control spares. Please contact our staff by phone or email for pricing and availability on any parts and repairs

FREQUENTLY ASKED QUESTIONS

What is IS200DTBCG2A?
It is a Contact Output Termination Module developed by General Electrics.

What are the key features of the module?
The module is engineered to meet industrial requirements, providing precise control of contact output signals. It is designed to withstand harsh environments and incorporates protective measures against electrical transients and voltage spikes.

How does the board contribute to system reliability?
By efficiently controlling contact output signals, the module enhances system reliability and performance. It ensures accurate and reliable operation even in demanding industrial conditions.

Is the module compatible with the digital core of the Mark VIe system?
Yes, it is designed to be compatible with the digital core of the Mark VIe system. This compatibility enables seamless integration and efficient data transmission within the system.