GE DS215 Modules: DS215TCQAG1BZZ01A Analog I/O Board

Name: GE DS215 Modules: DS215TCQAG1BZZ01A Analog I/O Board
Brand: General Electric

Model: DS215TCQAG1BZZ01A

Brand General Electric

Series Pending

Model DS215TCQAG1BZZ01A

RFQ-ready model route Obsolete and surplus sourcing Export follow-up by model list

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Product Details And Specifications

GE DS215 Series Technical Notes

The Evolution of DS215 Architecture

The DS215 board family was introduced alongside the GE Mark V Speedtronic platform in the early 1990s, succeeding the Mark IV (DS200 series) architecture. The Mark V introduced a triple-redundant TMR (Triple Modular Redundancy) control structure, and the DS215 boards were engineered to operate within this fault-tolerant framework across three control processors: TCQA, TCQB, and TCQC. Each board in the DS215 family is assigned to a specific functional role — analog I/O, digital I/O, power distribution, communications, or processor core — and is not interchangeable across roles without firmware and backplane reconfiguration.

By the mid-2000s, GE transitioned new turbine installations to the Mark VI (IS200 series) and subsequently the Mark VIe (IS420 series) platforms. The DS215 series entered its end-of-active-production phase, though GE continued to supply spare parts through its authorized service network for an extended period. As of the mid-2010s, the majority of DS215 part numbers are classified as obsolete or last-time-buy, making third-party aftermarket sourcing the primary procurement channel for operators maintaining legacy Mark V systems. Compatibility between DS215 boards and Mark VI is not supported at the hardware level; migration requires full panel replacement.

DS215 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly sourced components within the GE DS215 series. Each entry reflects a distinct functional role within the Mark V control architecture.

DS215TCQAG1BZZ01A: Dual-channel analog I/O board for TCQA processor; 4–20 mA and voltage signal conditioning.
DS215TCQBG1BZZ01A: Analog I/O board assigned to TCQB redundant processor channel in TMR configuration.
DS215TCQCG1BZZ01A: Analog I/O board for TCQC processor; third leg of TMR analog signal path.
DS215SDCCG1AZZ01A: Serial data communications card; handles RS-232/RS-485 inter-panel data exchange.
DS215DMPAG1AZZ01A: Digital motor protection analog interface board; monitors motor current and voltage signals.
DS215SLCCG1AZZ01A: Sequence logic communications card; manages inter-controller sequencing signals.
DS215TCDAG1AZZ01A: Turbine control discrete analog board; processes thermocouple and RTD temperature inputs.
DS215TCDAH1BZZ01A: Revised hardware revision of TCDA; improved thermocouple cold-junction compensation circuit.
DS215TCPSG1AZZ01A: Power supply interface board; distributes regulated DC voltages to Mark V I/O racks.
DS215TCRAG1AZZ01A: Redundant analog reference board; provides precision voltage references for A/D conversion.
DS215TCQEG1BZZ01A: Extended analog I/O board; additional channel capacity for high-density analog applications.
DS215DPDEG1AZZ01A: Digital pulse detection board; processes speed and position pulse signals from magnetic pickups.
DS215TBAIG1AZZ01A: Terminal board analog input; field-side wiring termination for analog sensor loops.
DS215TBDIG1AZZ01A: Terminal board digital input; field-side termination for discrete 24 VDC and 125 VDC input signals.
DS215TBDOS1AZZ01A: Terminal board digital output; relay-driven discrete output termination for actuator control.
DS215TCPAG1AZZ01A: Core processor analog board; primary CPU card for Mark V TCPA control processor slot.
DS215TCPBG1AZZ01A: Secondary processor board for TCPB slot; redundant CPU in dual-processor Mark V configurations.
DS215TCPCG1AZZ01A: Tertiary processor board for TCPC slot; third CPU in full TMR Mark V panel builds.

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