Agilent/Keysight J4233A

The Agilent/Keysight J4233A is a C-size, double-slot VXI module functioning as a DWDM transmitter for high-performance optical telecommunications testing. It provides four optical output ports, each emitting 1310 nm laser light, and generates PRBS patterns across four standardized data rates from 155.52 Mb/s to 2.488320 Gb/s. The module supports both framed and unframed signal structures, including STM-1/4c/16c and OC-3c/12c/48c formats. Error injection capability—selectable B1, B2, or bit errors at rates from single to 1 × 10⁻⁹—enables rapid characterization of optical link performance and fault tolerance. Maximum output power reaches +2 dBm per port.

– Technical Specifications

• Module Type: DWDM Transmitter, register-based VXI
• Form Factor: C-size, occupying two VXI slots
• Optical Output Ports: 4
• Laser Wavelength: 1310 nm
• Data Rate Support: 2.488320 Gb/s, 1.244160 Gb/s, 622.08 Mb/s, 155.52 Mb/s
• Maximum Output Power: +2 dBm
• Signal Structures: Framed, unframed, STM-1/4c/16c, OC-3c/12c/48c
• Error Injection: B1, B2, or bit errors at single, 1 × 10⁻⁷, 1 × 10⁻⁸, 1 × 10⁻⁹ rates

– Key Features

• Four independent 1310 nm laser transmitters
• PRBS pattern generation across four standard optical transport rates
• Programmable error injection for system stress testing
• VXI register-based control architecture

– Typical Applications

• SDH/SONET transmission testing
• Optical link characterization and validation
• Network equipment fault tolerance assessment
• DWDM system component evaluation

– Compatibility & Integration

Designed for VXI mainframe systems (e.g., Keysight E8404A) with SCPI command control via a VXI command module. The module integrates active cooling within the VXI chassis and requires a command module for system communication and test automation.