The Keysight/Agilent/HP 81000KI is an SC connector interface engineered for optical testing applications requiring reliable fiber optic connections. This modular adapter accepts SC-terminated cables and integrates into the 81000xI series ecosystem, enabling rapid reconfiguration across different connector topologies without replacing the main test instrument interface.
## Technical Specifications
• **Connector Type:** SC
• **Physical Interface:** 14mm threaded ring with 2.5mm metal-jacketed fiber ferrule
• **Contact Configuration:** Compatible with both physical contact (PC) and angled physical contact (APC) connections
• **Ferrule Material:** Metal jacket, 2.5mm diameter
• **Ring Diameter:** 14mm threaded
## Key Features
• Supports PC and APC fiber connector terminations
• Universal adapter architecture accepts all 81000xI series connectors (FC/APC, ST, E-2000, DIN 47256/4108.6)
• Metal-jacketed ferrule ensures precise alignment and repeatability
• Threaded coupling mechanism provides secure mechanical connection
• Modular design enables connector topology changes without instrument replacement
## Typical Applications
• Optical spectrum analyzer (OSA) measurements
• Lightwave attenuation testing
• Light source and detector coupling
• Lightwave multimeter interface
• General-purpose fiber optic test system connectivity
## Compatibility & Integration
The 81000KI interfaces directly with Keysight, Agilent, and HP lightwave test systems, optical heads (8152x and 8162x series), and modular measurement platforms. Its position within the 81000xI series allows users to swap connector adapters—replacing the 81000KI with alternatives such as the 81000NI (FC/APC), 81000VI (ST), 81000HI (E-2000), or 81000SI (DIN 47256/4108.6)—to accommodate different field-installed cable terminations.
