Connectors 101
Connecting your measurement sensor and the instrumentation device to gather and process output data is fundamental in any test and measurement setup. Where would you like the measurement results sent for analysis, display, or storage? The answer often hinges on a seemingly simple component: the connector.
If you are using a cable with your sensor, you invariably need a connector. By far, most Interface sensors and instrumentation devices utilize cables terminated with connectors to establish a reliable electrical signal pathway. Refer to our review of essential cables and connectors.
The primary exception to this wired approach is the increasing adoption of wireless communication protocols, which transmit sensor readouts to a wireless instrumentation device, eliminating the physical connector entirely.
Interface connectors are the critical link that physically and electrically connects the sensor’s cable end to a corresponding receptacle on the instrumentation device. When selecting a cable for your test and measurement application, meticulously consider the connector type at both ends to ensure compatibility and optimal performance. For more information, refer to our Electrical Wiring and Diagrams online reference.
The connectors found on the measurement device, such as those integrated with load cells, torque transducers, and multi-axis sensors, typically feature a plug connector (often referred to as a male connector). This plug is designed to mate securely with the instrumentation device’s corresponding receptacle connector (female connector).
TIP: Use our Interface Sensor Interconnect Cable Assemblies Guide to make the connection based on the sensor models
Technical Definitions for Interface Connectors
- Connector: An electromechanical component used to create a separable interface between two or more electrical circuits or signal paths. In test and measurement, connectors ensure reliable and repeatable signal transmission between the transducer and the instrumentation.
- Transducer (Sensor): A device that converts a physical quantity, such as force, weight, or torque, into an electrical signal that can be measured and interpreted by an instrumentation device.
- Instrumentation Device: An electronic instrument used to acquire, condition, process, display, and/or record signals from transducers. Examples include data acquisition systems (DAQ), signal conditioners, and indicators.
- Cable: An assembly of one or more electrical conductors. In test and measurement, cables provide the physical pathway for signal transmission between the sensor and the instrumentation.
- Plug Connector (Male): A type of connector featuring one or more protruding pins or contacts inserted into the corresponding sockets or contacts of a receptacle connector to establish an electrical connection. Typically located at the end of the sensor cable.
- Receptacle Connector (Female): A type of connector featuring one or more sockets or contacts that receive the protruding pins or contacts of a plug connector to establish an electrical connection. Typically found on the instrumentation device.
- Wireless Communication Protocol: A method of transmitting data without physical cables. Refer to our Wireless Telemetry System. Common protocols in testing and measurement, such as Wi-Fi and Bluetooth, eliminate the need for physical connectors for signal transmission.
- Mating: The process of joining two complementary connectors (a plug and a receptacle) to establish an electrical and mechanical connection.
By understanding these fundamental concepts and the critical role of connectors, you can ensure robust and reliable data acquisition in your test and measurement applications. Selecting the correct connector type for your specific transducer and instrumentation is crucial to achieving accurate and meaningful results.
INTERFACE CONNECTORS
Interface provides pin diagrams for our sensors and instrumentation devices, where applicable, in the model specifications. You can find these diagrams in the datasheets for each product. We have added all drawings to the website under the product details.
Connector Configuration Considerations
- Sensor Model
- Mating Connector
- Receptacle Type
- Plug Type
Use the Interface Instrument Connection Selection Guide. Instruments not listed use screw terminal connections.
Mating Connectors
Mating Connectors are considered Interface accessories. They are also available in standard and custom Interface cable assemblies. Interface standard Mating Connector Models are MC-001, MC-002, CN-207, CN-208, and CN-214.
- Designed to work with Interface products
- Made with the highest quality components and processes
- Created to maintain the specification of the product they are intended for
- Mating connector and cable
- Dressed pigtails
- Interconnects between load cell and instruments
Connector Types
- Bayonet Type
- Screw Type
- Circular Type
- D-Sub Type
Standard Cable Connector Models
- PT06A-10-6S-SR 6-Pin Amphenol Bayonet Connector Female Sockets, Bayonet Lock, Aluminum Alloy
- M12 5-Pin Binder Circular Connector Female Sockets 423 Series, Receptacle, Solder
- M16 24-Pin Connector Male Socket, Non-Shield, Waterproof, IP67 Rating
- DB9 9-Pin D-Sub Connector DB9 Male Plug Type, D-Sub Connector
- 770 8-Pin Binder Bayonet Connector Male Cable Connector Unshielded, Solder, IP67 Rating
- DB44 44-Pin D-Sub High-Density Connector DB44 Male Plug Type, High-Density D-Sub Connectors
Keep our Cables and Connectors Brochure for reference. Interface accessory products are crafted from the highest-quality components and processes to ensure that the specifications for your Interface products meet their published standards.
ADDITIONAL RESOURCES
Cables and Connectors Brochure
Interface Cable Assemblies 101
Understanding Cable Length and Temperature Effects
Decoding Sensor and Instrumentation Communication Protocols Webinar Recap
Load Cell Connection to USB Instrumentation Advances Measurement Applications
Interface Instrumentation Connects Sensors to Actionable Data
