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GE 994D153G18

Product Name:​ Mark VIe VMEbus Backplane Assembly
Product Introduction:​ 19-inch VME64x backplane used in Mark VIe control chassis to carry processor, I/O packs, and power distribution.
Technical Specifications:
  • Bus: VME64/VME64x
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Detailed content

  • Connectors: DIN 41612 96-pin rows, J1/J2 defined
  • Power Rails: +5 V, +12 V, -12 V, +24 V distributed
  • Signal: address/data/IRQ/DMA
  • Material: FR4 laminate, gold-plated phosphor-bronze contacts
Functional Features:​ Hot-swap guide rails, keyed slots, ground plane shielding, DIP address support on selected slots.
Application Scenarios:​ Base structure of Mark VIe turbine control cabinet (gas, steam, hydro).
Material Composition:​ Multilayer FR4, copper planes, nickel/gold fingers.
Structural Characteristics:​ Horizontal pin field, standoff mounts, slot numbering silkscreen.
Working Principle:​ Provides controlled-impedance transmission lines between cards; distributes dc power and interrupts.
Installation Requirements:​ Torque standoffs to cabinet frame; align cards vertically; no card insertion under vibration.
Usage Notes:​ Inspect fingers for oxidation every outage; never run with missing slot terminator if design requires.

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