Features:
- Collects contact-input states from DTBA and DTBB terminal boards.
- Routes relay-output commands through JO1 and JO2 toward TCRA boards.
- Communicates with the Mark V I/O Engine through a daisy-chained IONET path.
Provides front-visible processing and diagnostic indication for cabinet service.
The General Electric DS200TCDAH1B occupies a digital I/O core rather than a protective overspeed position. Its cable map therefore follows the Q-core drawing and the specific turbine requisition.
A correct General Electric DS200TCDAH1B exchange retains the address and termination settings while keeping factory-test jumpers unchanged.
Contact Apter Power to request current pricing for the General Electric DS200TCDAH1B Mark V digital input/output board.
General Electric DS200TCDAH1B Mark V digital input/output board Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Connector-to-function map
- JQ: Receives contact-input wiring from the DTBA terminal board.
- JR: Brings the extended input group from the DTBB board.
- JO1 and JO2: Carry commanded contact outputs toward two TCRA locations.
- JP: Accepts the power-distribution path from TCPS.
- JX1 and JX2: Continue the IONET daisy chain through the digital core.
Network hardware choices
- Termination: Jumpers J2 and J3 control the required IONET termination resistors.
- Node identity: Jumpers J4 through J6 establish the TCDA node identity.
- Stall timer: J7 controls the approved stall-timer behavior for the installed design.
- Test positions: Factory-test positions must remain in their required factory state.
- Daisy-chain seating: Both daisy-chain plugs must be fully seated before the core is powered.
Return-to-service sequence
- Core position: Confirm that the board is installed in the same Q-core position as the removed unit.
- PROM and jumpers: Compare every PROM label and hardware jumper with the saved record.
- Connector seating: Check JQ, JR, JO1, and JO2 for correct keying and even insertion.
- Status indication: Observe the side LED for power and processor activity after startup.
- Contact validation: Use Mark V diagnostics to compare contact states with field conditions.
Separating board, cable, and field faults
- Input group missing: Trace the affected JQ or JR cable and terminal-board supply.
- Outputs inactive: Follow JO1/JO2 to the correct TCRA location and relay circuit.
- IONET timeout: Verify termination, node address, and both JX connections.
- LED dark: Confirm JP power, fuse status upstream, and board seating.
- Intermittent points: Inspect cable routing, shielding, connector strain, and contamination.