GE DS200RTBAG3A

Key Technical Parameters

Advantages & Core Features

• Absolute highest terminal capacity – The DS200RTBAG3A provides 96 terminals (6x 16-terminal blocks), the highest density available in any Mark V remote terminal board, consolidating a massive number of field connections onto a single board.

• Absolute highest output current capacity – Each output channel supports up to 3A, the highest in the Mark V family, enabling direct control of high-power field devices without external interposing relays.

• “A” revision improvements – Incorporates improved component selections, better thermal management, and enhanced reliability compared to non-A predecessors.

• Multi-signal type support – Supports analog inputs, digital inputs, digital outputs, thermocouple, and RTD connections.

• Individual channel fusing – Each output channel is protected by a user-replaceable fuse (24 total) with LED indication.

• Channel status LEDs – 24 LEDs provide immediate visual indication of output channel status.

• Galvanic isolation – 2,500 VAC isolation protects the Mark V backplane and processor from field-side voltage spikes.

Key Differences vs. DS200RTBAG2A (Previous “G2A” Model)

Application Cases

• Mega combined-cycle plant with extreme remote I/O – A 1,000 MW combined-cycle facility uses the DS200RTBAG3A to terminate 96 remote field connections with 3A outputs for direct control of large actuators and solenoid valves, eliminating external relays and maximizing rack space. The “A” revision’s improved thermal management supports the high-density configuration.

• Largest offshore platform with high-power remote I/O – A North Sea mega-platform uses the DS200RTBAG3A to provide 96 terminals and 3A outputs for direct control of high-power field devices, all from a single board with enhanced reliability.

• Chemical plant with high-power actuators – A petrochemical facility uses the DS200RTBAG3A to provide 96 terminals and 3A outputs for direct control of large actuators, reducing system complexity. The improved component selections of the “A” revision provide better resistance to industrial environments.

• Large hydroelectric plant with extensive remote I/O – A dam facility uses the DS200RTBAG3A to consolidate 96 remote I/O points with 3A outputs for direct control of auxiliary systems.

Comparison with Related Variants

Selection Suggestions

1. Assess I/O density and current requirements – Select the DS200RTBAG3A only if you need more than 80 terminals AND more than 2A per channel. This board is for the most extreme applications.

2. Confirm slot availability – The board requires 1.5-slot clearance. Verify adjacent slot is empty.

3. Count your I/O terminations – The board supports up to 96 terminals. Ensure this is sufficient.

4. Check output current requirements – Select the DS200RTBAG3A if your output devices require more than 2A per channel (up to 3A).

5. Confirm signal types – Ensure the board supports the required field signal types.

6. Verify communication interface – Ensure the board’s interface is compatible with your Mark V rack.

7. Verify fuse ratings – Ensure that the 3A fuse ratings match your output channel current requirements.

8. Assess environmental conditions – The DS200RTBAG3A has no conformal coating. For harsh environments, use external protective measures (sealed enclosures, field-applied conformal coating).

9. Procurement – The DS200RTBAG3A is among the rarest Mark V boards. Lead times: 26-32 weeks. Maintain multiple spares.

Important Precautions

• Power down completely – De-energize the entire system before insertion or removal. Hot-swapping is not supported.

• Slot clearance – Ensure 1.5-slot clearance (adjacent slot empty).

• ESD protection – Use wrist strap and anti-static mat.

• Wiring termination – Ensure field wires are properly stripped and securely clamped. Use appropriate wire gauge (12-22 AWG).

• Fuse replacement – Replace fuses only with specified types and ratings (3A).

• Check total current draw – Ensure total current draw on each rail does not exceed capacity.

• Signal segregation – Route analog and digital signals separately to avoid noise coupling.

• Cleaning – Use compressed air only. No liquids.

• Storage – Store at 10-30°C, 20-50% RH. Rotate every 24 months.

Final Expert Recommendation

The DS200RTBAG3A is the absolute ultimate Mark V remote terminal board, offering the highest terminal capacity (96 terminals) and highest output current capacity (3A per channel) in the entire Mark V family, with the enhanced reliability of the “A” revision. It is the definitive solution for the most extreme remote I/O applications requiring maximum density and maximum power delivery.

Select the DS200RTBAG3A only when:

• You have more than 80 remote field connections to terminate (up to 96)

• Your output devices require more than 2A per channel (up to 3A)

• You have 1.5-slot clearance available

• You have a clean indoor environment (no conformal coating required)

For most applications, the DS200RTBAG2A (80 terminals, 2A per channel) provides sufficient capacity at lower cost and lead time. The DS200RTBAG3A should be reserved for the most extreme applications where its unparalleled capacity and current are absolutely essential. For harsh environments requiring coating, consider the DS200RTBAG2AHC (coated, 80 terminals, 2A) or use external protective measures with the DS200RTBAG3A.

When sourcing the DS200RTBAG3A, ensure comprehensive documentation – channel verification, fuse testing, and LED testing. Given its exceedingly rare availability, maintain at least two spares on-site. Properly deployed, this board provides years of reliable, ultra-high-density, high-current remote I/O termination for the most demanding Mark V turbine control systems.