Overview
Configured for discrete signal termination in the General Electric Mark VI control system, the General Electric IS200TDBSH6A (IS200TDBSH6A Discrete Simplex Terminal Board) provides field wiring termination through two 48-position terminal blocks and a board-side connector.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS200TDBSH6A |
| Brand | General Electric |
| Series | Mark VI |
| Function | Terminal Board |
| Product Type | Discrete Simplex Card |
| Board Construction | Large printed circuit board |
| Terminal Blocks | TB1 and TB2 |
| Terminals per Block | 48 |
| Total Terminal Positions | 96 |
| Terminal Identification | 1 through 48 on each terminal block |
| Board Connector | One connector with multiple female contacts |
| Central Components | 12 rectangular black components arranged in 3 rows of 4 |
Discrete I/O Density and Terminal Interface
The IS200TDBSH6A provides a high-density physical termination interface for discrete signals within the Mark VI architecture. Two green terminal blocks, identified as TB1 and TB2, occupy the left edge of the board.
Each terminal block provides 48 numbered terminals. Therefore, the board exposes 96 terminal positions across TB1 and TB2. The terminal numbering appears directly on the board in white markings, which supports field wiring identification and maintenance.
In addition, the board includes one multi-contact connector along the opposite edge. The connector provides the board-side interface for the associated control wiring or system connection. The central PCB area contains twelve rectangular black components arranged in three rows, while elongated grey components surround the central component group.
For GE industrial control applications, I/O density and connector compatibility depend on the specific Mark VI hardware configuration. The supplied data identifies the board as a Discrete Simplex Card but does not specify a particular Profinet, EtherNet/IP, firmware, or backplane communication interface. Therefore, no such interface is assigned to the IS200TDBSH6A here.
Frequently Asked Questions
Q: How many terminal positions does the IS200TDBSH6A provide?
A: The board has two terminal blocks, TB1 and TB2. Each block contains 48 terminals, giving 96 terminal positions in total.
Q: How are the terminals identified?
A: Each terminal block uses white numerical markings from 1 through 48.
Q: Does the supplied specification define the board’s power consumption?
A: No. The supplied data does not specify a power consumption value, so no numerical electrical load rating should be assigned.
Field Installation Guidelines
- Install the IS200TDBSH6A according to the mechanical arrangement specified for the associated Mark VI control cabinet.
- Confirm the TB1 and TB2 terminal assignments against the applicable GE system drawings before connecting field conductors.
- Verify each conductor against its terminal number before tightening the terminal connection.
- Route discrete signal wiring separately from high-current switching conductors where practical to reduce electromagnetic coupling.
- Keep cable shields and grounding conductors arranged according to the cabinet grounding design. Avoid unintended shield ground loops.
- Inspect the multi-contact board connector for correct orientation and full engagement before commissioning.
- Do not apply field power or signal voltage to an unverified terminal. Confirm the circuit assignment and electrical characteristics from the applicable system documentation first.
ments against the applicable system drawings before startup.
















