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GE DS200TCEBG1A

Product Name:​ GE Mark V Protective Termination Expansion Board
Introduction:​ Companion board to PTBA, expanding protection-signal termination count and adding signal transformers for Mark V turbine safeguard loops.
Technical Specifications:
  • 4 onboard signal transformers, 26-pin + multiple 10/20-pin headers
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Detailed content

  • Bayonet connectors JWX/JWY/JWZ
  • 24 VDC backplane powered
    Features:​ Channel-to-channel isolation via transformers, surge suppression, compatible with PTBA daisy-chain.
    Materials & Structure:​ FR-4 PCB, encapsulated signal transformers, brass bayonet shells, silk-screened connector IDs.
    Working Principle:​ Field pulses arrive at bayonet, pass through isolating transformer, condition and route to core boards; prevents ground-loop injection into logic.
    Installation:​ Panel-mount behind PTBA; align bayonet cables firmly until click; mirror exact old-board map.
    Precautions:​ Transformer windings are polarity-sensitive; do not swap JWX/JWY/JWZ roles; inspect for cracked potting.

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