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GE DS200TBQBG1A Input Termination Module

The GE DS200TBQBG1A, also cataloged as the DS200TBQB Input Termination Module, operates as a dedicated hardware component for analog and discrete field signal termination within the Mark V SpeedTronic turbine control system. It interfaces field wiring with the associated TCQA and TCQC processor boards through dedicated backplane connectors while providing passive signal conditioning and configurable input selection.

Suffix Breakdown & Model Matrix

The available documentation identifies the functional revision but does not define an official suffix matrix beyond the hardware revision.

Model	Description
DS200TBQBG1A	Input Termination Module, Functional Revision A
Base Model	DS200TBQB

Hardware Specifications

Parameter	Specification
Model	DS200TBQBG1A
Brand	GE (General Electric)
Origin	United States
Product Type	Input Termination Module
Series	Mark V SpeedTronic
Functional Acronym	TBQB
Functional Revision	G1A
Weight	0.73 lb
Operating Temp	-30 deg C to +65 deg C
Storage Temp	-40 deg C to +85 deg C
Relative Humidity	5 % to 95 % non-condensing
Power Consumption	Not specified
Terminal Blocks	2 barrier terminal blocks
Signal Capacity	Up to 154 field termination points (77 terminals per block)
Connectors	3 x 34-pin and 3 x 16-pin connectors
Supported Signals	Analog current, analog voltage, vibration, pulse rate, compressor discharge transmitter inputs
Configuration	15 onboard jumpers for input and signal configuration
Mounting	Installed within GE Mark V control cabinet

Backplane Communication and Firmware Compatibility

The DS200TBQBG1A exchanges field signals with the associated TCQA and TCQC boards through dedicated ribbon cable connectors. Analog current, voltage, vibration, and pulse-rate signals are routed from the terminal board to the processing cores without active signal conversion on the termination module itself.

The board includes configurable jumper groups for selecting current or voltage analog input operation and for legacy pressure transducer configurations. Compatibility depends on the installed Mark V hardware configuration and matching control cabinet documentation.

Frequently Asked Questions

Q: Does the DS200TBQBG1A provide hot-swap capability?
A: No documented hot-swap capability is provided. Installation or replacement should be performed with the associated control cabinet de-energized unless GE service documentation specifies otherwise.

Q: What are the primary field signals accepted by this module?
A: The module terminates analog current, analog voltage, vibration transducer, pulse-rate, and compressor discharge transmitter signals before forwarding them to the associated processor interface boards.

Q: How are analog input types configured?
A: Onboard jumper groups are used to select current or voltage input operation and support specific legacy input configurations where required.

Field Installation Guidelines

• Verify the module part number and functional revision before installation.
• Mount the board only in the designated Mark V cabinet position.
• Route analog instrumentation cables separately from AC power and motor cables.
• Connect cable shields according to the cabinet grounding practice to minimize conducted noise.
• Confirm jumper settings before energizing the control system.
• Fully seat all multi-pin connectors and verify terminal screw torque after field wiring.
• Inspect barrier terminals periodically for loose conductors and signs of oxidation.

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