Description
GE IS200DTAIH1ACC | Mark VI DTAI Analog I/O Terminal Board
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | GE |
| Model | IS200DTAIH1ACC |
| System | Mark VI Speedtronic |
| Board Type | DTAI simplex analog I/O terminal board |
| Analog Inputs | 10 channels reported for DTAI H1 |
| Analog Outputs | 2 channels reported for DTAI H1 |
| Input Signal Types | Analog current/voltage signals; exact configuration is application-dependent |
| Analog Output Range | 0–20 mA; some DTAI configurations permit jumper selection for 0–200 mA |
| Field Connection | Terminal block |
| I/O Interface | 37-pin board connector reported for the DTAI family |
| Configuration | Hardware jumpers are used for applicable signal functions |
| Mounting | DIN-rail installation through the appropriate holder |
| Control Architecture | Mark VI turbine control |
| Redundancy | Simplex |
The DTAI family is a terminal/interface board rather than the main Mark VI analog processing board. Its job is to provide the field-side termination and signal interface used with the associated Mark VI I/O electronics. Available technical references describe 10 analog inputs and two analog outputs, with jumper-configurable output behavior on applicable DTAI variants.
Product Introduction
The GE IS200DTAIH1ACC is used in GE Mark VI Speedtronic turbine-control architectures as a DTAI-series simplex analog I/O terminal board. It provides the physical termination and signal-interface point between field instrumentation and the Mark VI I/O electronics, making it relevant to turbine measurements such as pressure, temperature, flow, and other continuously varying process signals.
From a maintenance perspective, this distinction matters. The IS200DTAIH1ACC is not simply a generic analog input card; its terminal-board configuration, connector arrangement, jumpers, and associated Mark VI I/O hardware must match the existing cabinet design.
IS200DTAIH1ACC
Application Scenarios & Field Pitfalls — Engineer’s Perspective
Engineering Pain Point
A failed DTAI board can produce symptoms that resemble a failed transmitter, wiring problem, or Mark VI I/O processor. Before replacing the board, compare the affected channel against the cabinet drawing and determine whether the fault follows the field wiring, terminal position, or I/O channel.
Typical Applications
- GE gas turbine control systems
- Steam turbine and generator auxiliary instrumentation
- Fuel, pressure, flow, and temperature monitoring
- Mark VI Speedtronic analog signal termination
Technical Pitfalls to Avoid
- Do not confuse DTAI with the analog processing electronics.
The DTAI is a terminal/interface board. A replacement must be matched with the associated Mark VI I/O architecture rather than treated as a standalone universal analog input module. - Verify the exact suffix and board revision.
Online descriptions disagree substantially about this part. One source incorrectly describes the IS200DTAIH1ACC as an RTD input board for Mark VIe, while other technical listings identify it as a Mark VI DTAI analog terminal board. That conflict is a strong reason to verify the physical nameplate and board artwork before procurement. - Do not copy jumper settings from another DTAI board without checking the application drawing.
DTAI configurations can use hardware jumpers for signal functions. The correct jumper arrangement depends on the channel and field device being connected.
Related Products
- GE IS200DTAIH1ABB — Earlier DTAI simplex analog input/output terminal-board variant; compare suffix and revision before substitution.
- GE IS200DTAOH1ABA — Mark VI DTAO simplex analog output terminal board; used for analog output termination rather than DTAI analog interfacing.
- GE VAIC — Mark VI analog I/O processing board associated with DTAI/DTAO terminal-board architectures.
- GE VAICH1C — VAIC-related analog I/O processor variant used with applicable Mark VI terminal boards.
- GE TBAIH1C — Mark VI analog input terminal-board family; configuration differs from the DTAI family.
- GE TBAOH1C — Mark VI analog output terminal board for applications requiring analog output termination.
- GE IS200DTTCH1A — Mark VI thermocouple terminal board; intended for thermocouple inputs rather than general DTAI analog termination.
- GE IS200DTRTH1A — Mark VI RTD terminal board; used for resistance-temperature detector inputs.
Procurement Check
For a replacement GE IS200DTAIH1ACC, verify the following before approving the part:
- Exact part number:
- Mark VI system compatibility
- Board revision and artwork
- Terminal-block arrangement
- 37-pin interface connector arrangement
- Number and type of connected analog channels
- Existing DTAI jumper configuration
- Associated Mark VI I/O processor
- Cabinet wiring drawings
- Field transmitter signal type
- Existing terminal-board holder and mounting arrangement
- Physical condition of connectors, terminals, and board coating
Recommended procurement description:
GE DTAI Simplex Analog I/O Terminal Board, Mark VI Speedtronic Turbine Control System, GE Analog Field Signal Interface and Termination Board.
Important: Do not substitute this board solely because another GE Mark VI board has a similar physical shape. The available references show conflicting descriptions for the exact suffix, so the site cabinet drawing, board label, and revision code should be treated as the final compatibility check.
