General Electric 19D421388G 1 Keying Circuit Board and Panel

This is a General Electric 19D421388G1 Keying Circuit Board with Front Panel, part of GE’s industrial control and signal conditioning systems. Manufacturer: General Electric (GE) Model / Part Number: 19D421388G1 Type: Keying Circuit Board / Interface Module Front Panel: Aluminum faceplate labeled “KEYING” with color-coded test jacks (Yellow, Blue, Red, Black) Indicators: May include test or calibration points for voltage verification Connectors: Gold edge connector for rack interface Components: • High-power resistors and diodes for signal conditioning • Large capacitors for transient suppression and filtering • Transistors for switching or amplification • Soldered copper traces for signal routing Function: • Used to generate or gate synchronization signals in drive or control systems • Provides test access via color-coded terminals for calibration or diagnostics • May interface between logic boards and power stages in motor control applications Specifications: Input/Output Signals: Low-voltage DC (logic or reference signals, typically 5–24VDC) Front Panel Terminals: Color-coded banana jack test points for signal injection or measurement Mounting: Rack-mounted with single captive screw and card-edge connector Applications: • GE DC/AC Drive Systems (e.g., DC2000/AC2000 series) • Industrial automation and motor control cabinets • Signal gating, synchronization, or protection circuits Please review pictures carefully and let us know if you have any questions!