The HP/Agilent 3499C is a 9/14-slot switch and control mainframe for automated test equipment and data acquisition systems. It delivers high-density signal switching and control across DC to 26.5 GHz with configurable plug-in modules. Parallel switching circuits enable simultaneous open/close operations on up to 360 channels in less than 0.1 second, achieving scan rates to 350 channels per second and dramatically improving test throughput over sequential architectures.
Technical Specifications
• Chassis: 9/14 slots accommodating 1, 2, and 3-slot wide modules
• Maximum Channels: Up to 360 channels for DC multiplexing
• Scan Rate: 350 channels per second
• Switching Speed: 200 channels open/close in <0.1 s; 360 channels open/close in <0.1 s
• Frequency Range: DC to 26.5 GHz
• Voltage Handling: Up to 250 VDC or AC RMS (module dependent)
• Current Handling: Up to 8 A (module dependent)
• Digital I/O Block Transfer Rate: 20 Kbytes/sec (long word)
• Memory: REV 1.0/2.0/3.0 stores 10 setups/10 errors (SCPI) or 40 setups/1 error (3488A mode); REV 4.0+ stores 50 setups/10 errors (SCPI) or 40 setups/1 error (3488A mode)
• Power Input: 100–240 VAC, 47–63 Hz, 140 VA maximum
• Rack Height: 5U
• Weight: 7.4 kg
– Key Features
• Supports multiplexers, general-purpose relays, matrices, digital I/O, VHF, RF, microwave, and Form-C relay modules
• Parallel driving circuits for simultaneous channel switching
• 4-bit Digital I/O port with 8-pin Mini DIN connector
• External triggering capability
• GPIB (IEEE-488) and RS-232 interfaces
– Typical Applications
Automated test systems requiring multi-channel signal routing, parametric testing, high-speed data acquisition, and mixed-signal switching across wide frequency bands.
– Compatibility & Integration
Accepts Agilent switch modules including N2262A, 44473A, and 34938A, enabling tailored configurations for DC/AC, RF, and microwave signal paths.
