GE D20 RTU Retrofit with Orion IO

Easy D20 Substation I/O Retrofit Solution

Pre-Wired and Tested for Effortless Upgrades

The pre-wired and tested Orion I/O D20 Upgrade Assemblies comprise of an Orion I/O equipped with I/O Cards, bracketing, internal interconnection wiring and connectors. For D20 modules with DB25 or “Disconnect” style connectors, replacement of the D20 module can be accomplished without any re-wiring. For D20 I/O modules with “Barrier” or “Compression” style connectors, existing wires can be re-landed to the same physical terminal location.

Orion I/O D20 Upgrade Assemblies replace the D20A Analog Input, D20S Status Input, D20K Control Output and D20C Combination Input / Output cards. Upgrade Assemblies are available in 19” rack-mount configurations and panel mount (surface mount) configurations. The high density of the Orion I/O (up to 64 DI in 2 RU and up to 32 AI in 2 RU) enables the Upgrade Assemblies to occupy the same vertical panel real estate as the replace D20 modules, although additional forward or rearward depth is required. Upgrade Assemblies are produced to replace the specific models of D20 I/O.

Orion I/O D20 Upgrade Assembly for 19” Rack Mount

Field wiring connectors on the Orion I/O are wired to connectors on a one (1) RU plate in the same locations as on the replaced D20 module. An unmodified Orion I/O module is used in this upgrade assembly. See diagrams below for front view, top view and side view of an Upgrade Assembly for the D20SD module (64 Status Inputs, DB25 connectors):

Orion I/O D20 Upgrade Assembly for Panel Mount (Surface Mount)

Rear connectors for Ethernet, serial comms and IRIG B are brought out to the front and mounted on a one (1) RU plate, along with field wiring connectors in the same position as on the replaced D20 module; all connectors and operator interface are from the single front face. An unmodified Orion I/O module is used in this upgrade assembly. See diagrams below for front view, top view and side view of an Upgrade Assembly for the D20SD module (64 Status Inputs, DB25 connectors):



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