The Exfo EUI-91 SC Universal Interface Connector Adapter is an interchangeable fiber optic adapter designed for seamless connector management across EXFO test instruments. It enables rapid conversion between connector types on OTDRs, light sources, and OSA ports without tools, supporting both APC and UPC polishing standards. Precise ferrule machining and integrated dust protection ensure measurement repeatability and optical integrity in field and laboratory testing.
## Technical Specifications
• **Connector Type:** SC (Universal Interface)
• **Polishing Options:** APC/EA (angled) and UPC/EI (non-angled)
• **Insertion Loss:** 0.2 dB typical
• **Optical Return Loss:** ≥ 65 dB
• **Repeatability:** ± 0.1 dB
• **Operating Temperature:** -10 °C to 55 °C
• **Storage Temperature:** -40 °C to 70 °C
## Key Features
• EXFO Universal Interface (EUI) system for fast connector swaps
• Tool-free push-and-turn conversion mechanism
• Direct access to ferrule endface for field cleaning
• Precisely machined ferrule concentricity for measurement accuracy
• Integrated dust cap with easy-open design
## Typical Applications
• Fiber optic testing in field deployments and lab environments
• Multi-connector testing workflows requiring rapid adapter changes
• Installation and maintenance of optical networks
• Connector endface inspection and cleaning during measurements
## Compatibility & Integration
The EUI-91 works with EXFO FTB modules, IQS modules, benchtop instruments, and handheld testers. It is also specified as an option for EXFO FiberBasix 100 Series and FiberBasix 500 Series light sources. Compatible connector types include FC, SC, ST, DIN47256, HMS-10/AG, and E-2000. Green ring markings on the EXFO Universal Baseplate identify APC-type connectors.
