The Keysight N1092A DCA-M is a single-channel optical sampling oscilloscope engineered for high-speed optical signal characterization in communication systems. This fully integrated instrument combines the acquisition architecture of Keysight N1000 and 86100 mainframes with optical and electrical channel hardware from the 861XX and N104X plug-in families, delivering unfiltered bandwidth exceeding 40 GHz and jitter performance below 200 fs. Compact and field-proven, the N1092A supports data rates from 20 to 28 Gb/s (extendable via Options PLK and IRC) and operates across the 830 nm to 1600 nm wavelength range with factory calibration at 850 nm, 1310 nm, and 1550 nm (±20 nm).
Technical Specifications
• Bandwidth: Greater than 40 GHz unfiltered (Option 40A); maximum optical channel –3 dBo bandwidth of 28 GHz with 32xFC filter setting
• Jitter: Less than 200 fs
• Sampling Rate: 250 kHz
• Wavelength Range: 830 nm to 1600 nm
• Optical Channel Bandwidth: Up to 28 GHz (–3 dBo)
• Sensitivity: –10 dBm at 1310/1550 nm (OTU4, 32G Fibre Channel); –11.5 dBm at 850 nm (20.6 Gb/s); –10 dBm at 850 nm (OTU4, 32G Fibre Channel)
• Noise Floor: Typically 9.5 µW at 850 nm and 6 µW at 1310/1550 nm with 32G Fibre Channel reference receiver filter
• Receiver Sensitivity (noise floor): Less than 5 µW
• Clock Input Maximum Voltage: 1.4 Vpp non-destructive; recommended input less than 500 mVp-p
• Data Rate Support: 20 to 28 Gb/s; solutions available for 8.4 to 64 Gbaud
– Key Features
• Reference receiver filters for 25.78 Gb/s (25/50/100 Gb Ethernet), 26.56 Gb/s (400 Gb Ethernet), 27.95 Gb/s (OTU4), and 28.05 Gb/s (32x Fibre Channel)
• Integrated clock recovery available with Option CDR
• FlexDCA user interface—identical to 86100D and N1000A platforms
• FC/PC and 2.4 mm input connectors for electrical channels (N1092C/E models)
– Typical Applications
• Optical transceiver characterization
• High-speed component analysis
• Manufacturing and R&D environments
• Standards-compliant testing (Ethernet, Fibre Channel, OTN)
– Compatibility & Integration
• Controlled via USB 2.0/3.0 with N1010A FlexDCA software
• Remote control via SCPI over LAN (VXI-11 or HiSlip)
• Compatible with N1000 and 86100 mainframe ecosystems

















