The Keysight/Agilent/HP 44480A Terminal Block is a screw terminal interface designed to connect external wiring from transducers and measurement devices to relay option assemblies within Keysight instrumentation systems. It serves as the connection terminal block for the 44470A 10-Channel Relay Multiplexer Module, which integrates into the 3488A Switch/Control Unit, enabling organized signal routing with low thermal offset characteristics suitable for precision low-level applications.
## Technical Specifications
• Voltage handling: Up to 250V
• Current per channel: Up to 2A
• Power per channel: Up to 60W
• Apparent power per channel: Up to 125VA
• Thermal offset: Low (suitable for precision applications)
• Termination type: Screw terminal block
• Compatible wire gauge: 18 AWG and larger (smaller gauge wires must be bundled within 4 inches of terminal block)
## Key Features
• Screw terminal block design for field wiring integration
• Low thermal offset characteristics for sensitive measurement circuits
• Break-before-make switching capability on associated 44470A modules
• Multiple channels close mode operation
• Four-wire ohm measurement support via paired 44470A module configuration in card pair mode
• Includes parallel port board
## Typical Applications
• Transducer and sensor signal conditioning
• Relay-based signal switching and routing
• Multi-channel measurement systems requiring organized external connections
• Low-level DC and AC signal measurement applications
• Four-wire resistance measurements
## Compatibility & Integration
• Primary use: 44470A 10-Channel Relay Multiplexer Module
• System platform: 3488A Switch/Control Unit
• Related terminal block products: Keysight E1586A, Keysight 44725A, HP E1345A, NI SCB-68A
