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The GE DS200DDTBG2A, also cataloged as the DS200DDTB LCI Auxiliary I/O Terminal Board, operates as a dedicated hardware component for high-speed signal routing and high-voltage field interface execution within LS2100 Series control systems.

Hardware Specifications

Parameter Specification
Model DS200DDTBG2A
Brand General Electric
Origin USA
Functional Acronym DDTB
Revision Group Group 2 (G2A)
Board Type High-Speed Input/Output
Series LS2100
Analog Outputs 4 (TP14 to TP17)
Digital Inputs 8 universal isolated discrete inputs (TP17 to TP25)
Voltage Input Range 24-250 VDC, 24-230 VAC at 60 Hz, 125-230 VAC at 50 Hz
Relay Outputs 2 x Form-C high-current relays (20 A at 240 VAC / 10 A at 30 VDC)
Connectors TBPL (60-pin header), TB5 (6-position strip), TB3/TB4 (3-position strips), TB1/TB2 (36-position double-row)
Power Source Powered via DS200ADMA board ribbon connection
Operating Temp 0 to 50 deg C
Dimensions Standard GE Board Size
Weight Standard GE Board Weight
Power Consumption System-dependent via backplane

Backplane Bus Communication & I/O Density Scaling

The DS200DDTBG2A board maximizes I/O density scaling and physical signaling performance across GE LS2100 control platforms. Interfaced directly to the DS200ADMA analog-to-digital option board via the 60-pin TBPL high-density ribbon header, the unit transfers analog and discrete field telemetry to the central processing architecture without backplane latency. High-speed signal processing channels support low-latency conversion cycles, while double-row terminal connectors ensure secure electrical integration for multi-channel digital and analog feedback paths.

Frequently Asked Questions

Q: How is primary electrical power supplied to the DS200DDTBG2A board?

A: Power is delivered directly from the connected DS200ADMA board via high-density ribbon cables through the TBPL 60-pin header.

Q: What are the electrical contact ratings for the Form-C relay outputs on the board?

A: The two Form-C relay outputs are rated for 20 A at 240 VAC or 10 A at 30 VDC, with status indication provided by dedicated LEDs upon relay pickup.

Q: What voltage ranges do the eight universal isolated discrete inputs support?

A: The inputs process 24 to 250 VDC, 24 to 230 VAC at 60 Hz, and 125 to 230 VAC at 50 Hz across test points TP17 through TP25.

Field Installation Guidelines

  • Ensure primary system power is fully isolated before connecting or disconnecting high-density ribbon cables to prevent pin shorting.
  • Verify that external inductive loads driven by the Form-C high-current relays feature appropriate external surge suppression circuits.
  • Maintain dedicated cable paths for high-voltage AC inputs separated from low-voltage analog signals to limit electrical noise interference.
  • Verify secure seating of the 60-pin TBPL header connection to maintain solid ground continuity and power supply rail integration.

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