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Configured for resistance temperature detector signal termination in Speedtronic Mark V control cabinets, the GE DS200TBCAG1A (DS200TBCA RTD Termination Module) provides direct physical and electrical execution.

Hardware Specifications

Parameter Specification
Model DS200TBCAG1A
Brand General Electric
Origin USA
Series Mark V
Product Type RTD Termination Module
Functional Acronym TBCA
Dimensions Standard GE Mark V Board Size
Operating Temp 0 to 60 deg C
Weight Standard GE Mark V Module Weight
Power Consumption Passive termination board (powered via host board interface)
PCB Coating Normal Coating
Revision Level Revision A (G1A revision code)
Signal Wire Terminals 180 screw terminals (2 blocks of 90 terminals)
Board Connectors 2 x 50-pin ribbon connectors (labeled JCC and JDD)
Input Capacity 30 inputs for 3-wire RTD sensors

Backplane Bus Communication Velocity & Firmware Flash Compatibility

The DS200TBCAG1A module routes signal lines from up to 30 individual 3-wire RTD sensors directly into the Mark V control architecture. Interface wiring is mapped through two 50-pin ribbon cable connections: connector JCC transmits RTD signals 1-15 to the TCCA board located in the R5 core, while connector JDD transmits RTD signals 16-30 to the corresponding TCCA board. The passive board traces maintain deterministic signal path integrity across the backplane bus, ensuring precise analog input data transmission to the primary data processor without adding transmission latency.

Frequently Asked Questions

Q: Which processor core and interface board does the DS200TBCAG1A communicate with?

A: The DS200TBCAG1A provides analog signal termination for the common data processor, routing signals directly to the TCCA board within the R5 core via JCC and JDD connectors.

Q: How are RTD input channels physically distributed across the board connectors?

A: The module accepts 30 inputs for 3-wire RTDs; signals 1 through 15 route through the JCC 50-pin connector, while signals 16 through 30 route through the JDD 50-pin connector.

Q: What precautions are necessary when disconnecting the 50-pin ribbon cables from the board?

A: Technicians must pull directly on the connector housing rather than the ribbon wire itself while supporting the PCB chassis with the opposite hand to avoid flexing the board or damaging internal traces.

Field Installation Guidelines

  • Power down the Mark V cabinet core and confirm all active control circuits are de-energized prior to installation or wire landing.
  • Wear a properly grounded static-dissipative ESD wrist strap attached to the metal cabinet frame throughout module handling.
  • Secure the module inside the board rack using all four corner mounting screws to support mechanical stress and withstand cabinet vibration.
  • Label all 180 signal wires according to terminal designation numbers before connection, ensuring individual copper wire strands are fully inserted into terminal clamps to prevent signal disruption.

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