The Agilent/Keysight 3499C is a modular switch and control mainframe for automated test equipment environments. This full-rack width, 5U unit provides flexible signal routing across nine physical slots, expandable to fourteen slots for 1-, 2-, or 3-slot-wide modules. It delivers up to 360 channels of DC multiplexing with scanning rates to 350 channels/second and can open/close 200 channels in less than 0.1 second through parallel driving circuits.
Technical Specifications
• Module Capacity: 9 physical slots, expandable to 14 slots
• Maximum Channels: 360 channels (DC multiplexing)
• Scanning Rate: Up to 350 channels/second
• Switching Speed: 200 channels open/close in <0.1 second
• Voltage Range: Up to 250 V maximum (precautions required above 60 Vdc, 30 Vac rms, or 42.4 Vac peak)
• Current Switching: Up to 8 A (module dependent)
• Frequency Support: DC to 26.5 GHz (module dependent)
• Weight: 7.4 kg
– Key Features
• GPIB (IEEE-488) and RS-232 remote control interfaces
• SCPI-compatible command set
• Intuitive front-panel interface for manual operation
• Built-in 4-bit digital I/O port
• External triggering via 8-pin Mini DIN connector
• Setup storage: up to 50 instrument configurations (Controller 2.0, Firmware REV 4.0+)
• Error logging: up to 10 error records
• Parallel switching architecture for increased test throughput
– Available Module Types
• Multiplexers (MUX) and RF multiplexers
• General-purpose relays and Form-C relays
• Matrices and multifunction modules
• Digital input/output (DIO) modules
– Compatibility & Integration
The 3499C integrates into mixed-signal and RF test environments supporting DC through microwave frequencies. Module flexibility enables configuration for DC switching, RF multiplexing, and general relay control within a single mainframe. Operator safety requires that module connectors and test signal cables remain tool-accessible only.
