The Keysight/Agilent/HP 81000NI is an FC/APC connector interface for optical test and measurement systems. It delivers reliable, repeatable connections across a broad range of lightwave instruments through a precision ferrule design and proven R-keying mechanism. The interface accepts both physical and non-physical contact connectors, supporting both angled and straight topologies within a single, field-interchangeable housing.
Technical Specifications
• Connector Type: FC/APC (Angled Physical Contact), female
• Keying: R-keying with 2.00 mm nominal key slot width (2.03 mm / 0.08″, 2.05 mm nominal)
• Ferrule: 2.5 mm metal-jacketed fiber ferrule in 14 mm threaded ring
• Contact Mode: Suitable for physical and non-physical contact connections
• Mechanical Life: Over 10,000 reconnection cycles
• Dimensions: 0.4 × 0.4 × 0.2 in (0.3 lbs)
– Key Features
• Narrow key way design ensures positive mating alignment
• Threaded ring provides secure, repeatable fiber positioning
• Rated for extended service life in production and field environments
• Compact footprint compatible with dense test bench layouts
• Single interface supports connector variation through optional adapters
– Typical Applications
• Optical spectrum analyzers (OSA)
• Lightwave multimeters and power meters
• OTDR series instruments
• General-purpose optical test and measurement setups
• Field service and maintenance of fiber optic systems
– Compatibility & Integration
The 81000NI integrates directly with the Keysight 81000xI series platform, enabling modular test system design. All 81000xI series adapters mate universally to this interface, allowing rapid connector topology changes—such as FC to SC conversion—without instrument modification. Compatible across Keysight, Agilent, and HP lightwave test equipment families.
