Keithley S40-C205-6×24 RF Microwave Signal Routing Mainframe

The Keithley S40-C205-6×24 is a 19-inch rack-mountable RF microwave signal routing mainframe that switches and routes RF and microwave signals across a 6×24 configuration. Operating from DC to 18 GHz, it delivers precise signal control for automated test and measurement applications, maintaining signal integrity across complex test setups while providing full programmability and status monitoring.

## Technical Specifications

• **Configuration:** 6×24 RF switch matrix
• **Frequency Range:** DC to 18 GHz
• **Relay Control Lines:** 32 channels
• **Current Sink Capability:** 300 mA maximum per relay control line
• **Maximum Common Mode Voltage:** 42 V peak (any terminal to earth)
• **Power Requirements:** 100–240 VAC, 50/60 Hz
• **Dimensions:** 89 mm H × 485 mm W × 370 mm D (3.5″ × 19″ × 14.563″)
• **Weight:** 13 kg (28 lbs)
• **Operating Temperature:** 0° to 40°C
• **Storage Temperature:** –25° to 65°C
• **Humidity:** Up to 80% RH (below 35°C)

## Key Features

• Contact closure counters with up to 10 million cycle counts per channel stored in non-volatile memory
• 32 user-definable storage locations for channel and system parameters (68 bytes each)
• Front panel LEDs indicate relay contact status in real time
• GPIB (IEEE-488.2) control interface with SCPI command support
• Precision signal routing with contact cycle monitoring for predictive maintenance

## Typical Applications

Automated RF and microwave test systems, component characterization, antenna testing, signal path validation, and multi-signal switching in production test environments.

## Compatibility & Integration

Accepts Keithley DC and RF switch cards. Integrates with other Keithley test and measurement instruments via GPIB control.