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GE 996D996G1

Product Name:​ GE Mark V/VI I/O Communication Processor Module
Product Introduction:​ The GE 996D996G1 is an I/O communication processor module dedicated to GE Speedtronic Mark V and Mark VI control systems. It undertakes data transmission and communication management tasks between I/O racks and the central processor, serving as the core hub component of the entire control system’s data link.

Detailed content

Technical Specifications:
  • Series:​ GE Speedtronic Mark V / Mark VI
  • Working Voltage:​ +5 V DC
  • Communication Protocol:​ GDH (GE Data Highway) / GRLO (GE Redundant Link Option)
  • Data Transfer Rate:​ 10 Mbps (GDH)
  • Slot Type:​ Mark V/VI standard I/O rack slot
  • Operating Temperature:​ 0°C to +60°C
  • Storage Temperature:​ -40°C to +85°C
  • Relative Humidity:​ 5% to 95% (non-condensing)
Performance Parameters:
  • Scan Cycle:​ ≤10 ms (typical)
  • Supported I/O Points:​ Max 512 points (depending on system configuration)
  • Communication Latency:​ ≤1 ms (GDH link)
Functional Features:
  • High-speed data exchange between I/O modules and the main processor
  • Supports GDH redundant communication links to ensure system communication reliability
  • Built-in data buffering and error checking mechanism
  • Supports hot-swappable operation without affecting system operation
Material Composition:
  • Circuit Board:​ FR-4 epoxy glass fiber substrate
  • Connectors:​ Gold-plated contacts, corrosion-resistant alloy housing
  • Shell:​ Flame-retardant ABS engineering plastic (UL94 V-0 rated)
Structural Features:
  • Standard card size, adapted to GE Mark V/VI I/O racks
  • Front-facing status indicator LEDs (Power, Communication, Fault)
  • High-density backplane connector on the rear
Working Principle:​ The module receives acquisition data from various I/O modules via the GDH bus. After internal processor data packaging and verification, it transmits to the central processor (CPU) via a high-speed communication link. Simultaneously, it distributes control instructions issued by the CPU to corresponding I/O channels, realizing bidirectional data communication.

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