The Agilent J1420B is a C-size VXI receiver module for spectral and BER analysis of SDH/SONET signals in DWDM systems. It receives framed STM-64/STS-192 signals at 9.953 Gb/s via SC optical connector and delivers comprehensive performance evaluation through bit error testing, trace message monitoring, and optical quality metrics. The module integrates into larger SDH/SONET analyzer platforms alongside clock source and transmitter modules for end-to-end signal validation.
Technical Specifications
Signal Reception
• Data Rate: 9.953 Gb/s (STM-64/STS-192)
• Signal Type: Framed SDH/SONET signals
• Error Detection: PRBS pattern-based bit error testing
• Trace Monitoring: J0 and J1 section trace messages
• Performance Analysis: G.826 and G.828 support
• Alarm Monitoring: Multi-parameter alarm and error detection
Optical Interface
• Wavelength Range: 1260 nm to 1620 nm
• Connector: SC
• Receiver Type: InGaAs
• Sensitivity: -13.5 dBm
• Maximum Input Power: +6 dBm
• Optical Power Measurement Range: -60 dBm to +6 dBm
• Optical Return Loss: >28 dB
DWDM Capabilities
• Wavelength tuning across DWDM spectrum
• Real-time optical power monitoring
• Optical Modulation Amplitude (OMA) measurement
• Optical Signal-to-Noise Ratio (OSNR) monitoring
Physical & Electrical
• Module Type: C-size, three-slot VXI
• Dimensions: 44 mm H × 260 mm W × 200 mm D
• Weight: 2.5 kg
• Electrical Interface: 10GBASE-LR compliant
• Power Supply: 100-240 VAC, 50/60 Hz
– Key Features
• Dual-function spectral and BER measurement capability
• Wide wavelength coverage for metro and long-haul DWDM deployments
• Integrated optical quality assessment including OMA and OSNR
• Standards-aligned performance metrics (G.826/G.828)
• High receiver sensitivity with broad dynamic range
– Typical Applications
• DWDM receiver validation and characterization
• SDH/SONET signal quality verification
• Optical network performance benchmarking
• Multi-wavelength system commissioning and troubleshooting
– Compatibility & Integration
Designed for integration within Agilent SDH/SONET analyzer systems. Operates as a modular component with complementary clock source and transmitter modules to enable full bi-directional signal analysis.
