The General Electric IS2020RKPSG2A, also cataloged as the IS2020RKPSG2A Power Supply, operates as a dedicated hardware component for VME backplane voltage regulation and power distribution within Mark VI control system platforms.

Hardware Specifications

Backplane Bus Communication Velocity

The IS2020RKPSG2A is engineered to provide stable, low-noise DC output to the VME backplane bus. The power distribution architecture is designed to support the specific backplane bus communication velocity required by high-speed processor modules within the Mark VI rack. Stable voltage rails are required to ensure that the timing margins for data transmission across the VME bus remain within specified tolerances, preventing communication jitter or bit errors caused by power ripple or sagging during transient load events.

Frequently Asked Questions

Q: Is this power supply capable of being operated in a redundant configuration?

A: Yes, the system architecture supports dual-redundant power supplies. Load sharing is managed automatically by the internal circuitry, allowing one module to provide full system power should the other experience a fault.

Q: What are the indicators for a module fault?

A: The front panel status LEDs provide immediate feedback. A "Supply OK" indicator signifies that the internal output rails are within their nominal operating ranges. If the internal logic detects an over-voltage or under-voltage condition on any output rail, the fault LED will illuminate and the status signal will be sent to the controller.

Field Installation Guidelines

• Verify that the input power source matches the rating label on the module before connection to avoid catastrophic internal failure.
• Ensure the power supply is fully inserted into the designated VME slot; the backplane connectors must be aligned to prevent pin damage during insertion.
• Tighten the top and bottom captive screws to ensure the module chassis maintains a solid electrical bond with the rack frame for electromagnetic shielding.
• Measure the output voltages at the backplane test points after installation to confirm proper regulation before installing any I/O packs or controller modules in the rack.