IS400TDBTH2A | General Electric | Mark VIe Discrete Terminal Board

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Manufacturer: General Electric
Product No.: IS400TDBTH2A
Country of origin:United States
Product Type: Discrete Terminal Board
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 1150g
Dimensions: 33.0 cm x 17.8 cm x 5.1 cm
Shipping port: Xiamen
Warranty: 12 months

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Description

The IS400TDBTH2A is a discrete input/output terminal board designed for the General Electric Mark VIe control system. This component serves as a robust interface for digital signals, facilitating the connection between field wiring and the I/O processor modules. It accommodates multiple dry contact inputs and provides relay outputs to support comprehensive industrial automation control loops. Engineered for high reliability in demanding environments, the module functions efficiently within steam/gas turbine control, power generation assets, and process plant applications, ensuring seamless system compatibility and signal integrity across the Mark VIe platform.

Features

Provides direct termination for external field wiring with secure screw clamp connections.
Supports discrete contact inputs and integrated relay outputs on a single board footprint.
Implements onboard optical isolation to protect internal control electronics from field-side voltage surges.
Features diagnostic LEDs to deliver immediate visual status of relay coil states and input channels.
Designed for compact panel mounting with high-density channel layout to optimize enclosure space.

Applications

Utility and industrial gas turbine control systems.
Steam turbine sequence control and safety interlocking.
Balance of Plant (BOP) discrete device monitoring.
Emergency shutdown (ESD) and critical interlock validation.

Technical Specifications

Parameter	Specification
Manufacturer	General Electric (GE)
Country of Origin	USA
Product Series	Mark VIe Control System
Module Type	Discrete Input/Output Terminal Board
Number of Input Channels	24 Dry Contact Inputs (Typical for TDBT series)
Number of Output Channels	12 Relay Outputs (Typical for TDBT series)
Isolation	Optical isolation on inputs
Operating Temperature	0 to +60 degC
Storage Temperature	-40 to +85 degC
Relative Humidity	5% to 95% non-condensing
Weight	1.15 kg
Dimensions	33.0 cm x 17.8 cm x 5.1 cm

Connections/Interfaces

Terminal Block	Function
TB1	Discrete Input Channels 1 through 12 and Common Return
TB2	Discrete Input Channels 13 through 24 and Common Return
TB3	Relay Output Contacts 1 through 6 (NO/NC/Common)
TB4	Relay Output Contacts 7 through 12 (NO/NC/Common)
JR1 / JZ1	RJ45 / Multi-pin connector interface to I/O pack

Installation Guidelines

Mounting: Securely mount the board vertically inside the enclosure using the designated standoff mounting holes or standard DIN rail hardware options.
Grounding: Ensure the chassis ground terminal is connected directly to the low-impedance master enclosure ground bus.
Wiring: Route discrete AC/DC field wiring separately from low-voltage network cables to mitigate electromagnetic interference (EMI).
Isolation Check: Verify all field dry contacts are completely unpowered before connecting to prevent damage to the internal optical couplers.

Key Features:

#Discrete Input/Output Modules #Mark VIe

Does this terminal board require external power for the contact inputs?

No. The board provides internal excitation voltage for the dry contact inputs, eliminating the need for an external interrogation power supply.

What is the primary function of the diagnostic LEDs on the board?

The LEDs provide a direct visual indication of the logic state for each digital channel, showing whether an input is closed or a relay output is energized.

How does the board connect to the core I/O processor pack?

It utilizes standard system cables attached via onboard multi-pin connectors to transmit conditioned parallel signals to the processing unit.

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern	Green
Country of origin	United States

IS400TDBTH2A | General Electric | Mark VIe Discrete Terminal Board