Product Description

Overview

The GE DS200DTBBG1A is a high-density digital terminal board designed for Mark V Speedtronic turbine control systems. It organizes and conditions digital contact inputs from field devices, ensuring accurate signal transmission into the control architecture. Moreover, its rugged construction and wide environmental tolerance make it suitable for long-term operation in power generation facilities. Engineers often select this module because it simplifies wiring, reduces panel space, and enhances system diagnostics.

Technical Specifications

General Information

• Manufacturer: General Electric (GE)

• Model Number: DS200DTBBG1A

• Series: Mark V

• Product Type: Digital Terminal Board

Termination & Wiring

• Termination capacity: 220 points (2 × 110 plug-in blocks)

• Supported signals: Digital contacts 47–96 in Mark V

• Connectors: Three 50-pin ribbon connectors (JFF, JFG, JFH), bayonet-style auxiliary connectors

Electrical Characteristics

• Input voltage range: 24–250 VDC

• AC voltage range: 24–230 VAC (±10%)

• Relay output rating: 20 A at 240 VAC

• Signal delay: ≤ 10 ms

Communication & Safety

• Protocols: Modbus TCP/IP, SRTP

• Redundancy: Compatible with TMR and dual systems

• Safety standard: IEC 61508 SIL3

Diagnostics

• Real-time self-diagnostics with visible fault codes

• Online Built-In Test (BIT) for command/feedback matching

Environmental & Physical

• Operating temperature: –40 °C to +85 °C

• Corrosion protection: 1000-hour salt-spray-tested coating

• Dimensions: approx. 286 × 76 × 25 mm

• Weight: 0.36–0.5 kg

• Mounting: Rack or panel installation

FAQ

Q1: What systems are compatible with the DS200DTBBG1A board?
It is fully compatible with GE Mark V Speedtronic turbine control systems.

Q2: Can the terminal board handle high-current outputs?
Yes. Its integrated relay outputs support up to 20 A at 240 VAC for direct-drive applications.

Q3: Does the board support redundancy for critical turbines?
Yes. It integrates with TMR and dual-redundant configurations used in mission-critical power systems.

Q4: What is the operating temperature range?
It operates reliably from –40 °C to +85 °C, offering stability in demanding environments.

Q5: Are the terminal blocks removable for maintenance?
Yes. The plug-in terminal blocks allow fast servicing and reduce system downtime.