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- 8 Independent Power Relay Channels: Each channel operates independently, allowing simultaneous control of multiple circuits or devices.
- Form C (SPDT) Relay Configuration: Each relay provides both normally open (NO) and normally closed (NC) contacts, enabling versatile switching topologies.
- High Current Capacity: Rated for 5A switching current per channel, suitable for power-level signal routing and load control.
- High Voltage and Power Ratings: Supports up to 250 VAC or 30 VDC, with a maximum switching capacity of 1250 VA (AC) or 150 W (DC).
- PXI / CompactPCI 3U Form Factor: Designed for integration into standard PXI or CompactPCI chassis, ensuring compatibility with modular instrumentation systems.
- Hot-Swappable (PICMG 2.1 R1.0 Compliant): Supports live insertion and removal without system shutdown, minimizing downtime and improving serviceability.
- Plug-and-Play Operation: Automatically recognized by PXI controllers, simplifying configuration and reducing setup time.
- Compact Design: Standard 3U size (100 mm x 160 mm) for efficient use of chassis space.
- Industrial Reliability: Built with high-quality relays and durable PCB materials for long operational life and consistent performance.
- Flexible Application Range: Ideal for automated test equipment (ATE), signal routing, load switching, and power control in laboratory and production environments.
- Form C (SPDT) Relay Configuration: Each relay provides both normally open (NO) and normally closed (NC) contacts, enabling versatile switching topologies.
- High Current Capacity: Rated for 5A switching current per channel, suitable for power-level signal routing and load control.
- High Voltage and Power Ratings: Supports up to 250 VAC or 30 VDC, with a maximum switching capacity of 1250 VA (AC) or 150 W (DC).
- PXI / CompactPCI 3U Form Factor: Designed for integration into standard PXI or CompactPCI chassis, ensuring compatibility with modular instrumentation systems.
- Hot-Swappable (PICMG 2.1 R1.0 Compliant): Supports live insertion and removal without system shutdown, minimizing downtime and improving serviceability.
- Plug-and-Play Operation: Automatically recognized by PXI controllers, simplifying configuration and reducing setup time.
- Compact Design: Standard 3U size (100 mm x 160 mm) for efficient use of chassis space.
- Industrial Reliability: Built with high-quality relays and durable PCB materials for long operational life and consistent performance.
- Flexible Application Range: Ideal for automated test equipment (ATE), signal routing, load switching, and power control in laboratory and production environments.
1. Product Overview
Name: PXI-7641
Model: PXI-7641
Series: PXI / CompactPCI 3U Relay Module Series
Article Number: PXI-7641
Manufacturer: ADLINK Technology Inc.
The ADLINK PXI-7641 is a high-performance PXI (PCI eXtensions for Instrumentation) and CompactPCI (cPCI) compatible relay card designed for automated test and measurement systems. It provides 8 independent power relay channels in a 3U PXI form factor, offering robust switching capabilities for both AC and DC loads. The module is engineered for industrial-grade reliability, supporting 5A Form C (SPDT) relays with a maximum switching capacity of 1250 VA for AC or 150 W for DC applications. Fully compliant with PICMG 2.1 R1.0 hot-swap specifications, the PXI-7641 integrates seamlessly into PXI and CompactPCI chassis, enabling flexible, modular test configurations.
2. Key Features
- 8 Independent Power Relay Channels: Each channel operates independently, allowing simultaneous control of multiple circuits or devices.
- Form C (SPDT) Relay Configuration: Each relay provides both normally open (NO) and normally closed (NC) contacts, enabling versatile switching topologies.
- High Current Capacity: Rated for 5A switching current per channel, suitable for power-level signal routing and load control.
- High Voltage and Power Ratings: Supports up to 250 VAC or 30 VDC, with a maximum switching capacity of 1250 VA (AC) or 150 W (DC).
- PXI / CompactPCI 3U Form Factor: Designed for integration into standard PXI or CompactPCI chassis, ensuring compatibility with modular instrumentation systems.
- Hot-Swappable (PICMG 2.1 R1.0 Compliant): Supports live insertion and removal without system shutdown, minimizing downtime and improving serviceability.
- Plug-and-Play Operation: Automatically recognized by PXI controllers, simplifying configuration and reducing setup time.
- Compact Design: Standard 3U size (100 mm x 160 mm) for efficient use of chassis space.
- Industrial Reliability: Built with high-quality relays and durable PCB materials for long operational life and consistent performance.
- Flexible Application Range: Ideal for automated test equipment (ATE), signal routing, load switching, and power control in laboratory and production environments.
3. Technical Specifications
- Form Factor: PXI / CompactPCI 3U
- Bus Interface: PXI / cPCI backplane compatible
- Number of Channels: 8 independent relay channels
- Relay Type: Form C (SPDT) power relays
- Contact Configuration: Single Pole Double Throw (SPDT)
- Contact Rating:
- Switching Current: 5 A (maximum)
- Switching Voltage: 250 VAC / 30 VDC (maximum)
- Switching Power: 1250 VA (AC) / 150 W (DC)
- Contact Resistance: Typically <100 mΩ (initial)
- Insulation Resistance: ≥1000 MΩ at 500 VDC (typical)
- Dielectric Strength: 1500 VAC between open contacts, 2000 VAC between coil and contacts (typical values for Form C relays)
- Mechanical Life: >10⁷ operations (no load)
- Electrical Life: >10⁵ operations (rated load)
- Dimensions: 100 mm (W) × 160 mm (L) × 20 mm (approx. thickness)
- Weight: Approximately 250–300 g (typical for 3U relay modules)
- Operating Temperature: 0°C to +55°C (typical PXI environment)
- Storage Temperature: -20°C to +70°C
- Humidity: 10% to 90% RH, non-condensing
- Power Requirements: Supplied via PXI backplane (nominal 5 VDC and 12 VDC rails)
- Connector Type: Standard PXI/cPCI rear I/O connector (DIN 41612 or equivalent)
4. Functionality
The PXI-7641 functions as an 8-channel power relay switching module, enabling users to control and route electrical signals or power lines within a PXI-based test system. Each channel operates independently, allowing flexible configuration for switching AC or DC loads.
Operating Principle:
Each relay channel consists of a Form C (SPDT) contact set, providing one common terminal, one normally open (NO), and one normally closed (NC) contact. When the relay coil is energized, the common terminal switches from the NC contact to the NO contact, allowing controlled connection or disconnection of circuits.
Use Cases and Applications:
- Automated Test Equipment (ATE): Switching test signals, routing power to devices under test (DUTs), or isolating circuits.
- Industrial Control Systems: Controlling actuators, solenoids, or power distribution lines.
- Signal Routing and Multiplexing: Dynamically connecting measurement instruments to multiple test points.
- Load Simulation: Switching resistive, inductive, or capacitive loads for performance testing.
- Power Management: Enabling or disabling power rails in system-level testing.
Compatibility:
- Fully compatible with PXI and CompactPCI chassis conforming to PXI-1 and PICMG 2.0 standards.
- Operates with PXI controllers from ADLINK, National Instruments, and other compliant vendors.
- Supported by standard PXI software frameworks and drivers for Windows and Linux environments.
5. Components & Accessories
Included Items:
- PXI-7641 relay card (main module)
- User manual and quick start guide (digital or printed)
- Driver and software utilities (if applicable, downloadable from ADLINK support site)
Optional Accessories:
- Terminal Block or Cable Assembly: For easy connection to external circuits (specific models may include ADLINK TB-7641 or equivalent).
- Rack Mount or Chassis: Compatible with ADLINK PXI-1000, PXES-2590, or other PXI/cPCI chassis.
- Replacement Relays: OEM-specified Form C relays for maintenance or extended service life.
Connectors:
- Standard PXI/cPCI rear I/O connector for backplane communication and power.
- Front-panel connector (if applicable) for external signal wiring, typically via a high-density D-sub or terminal block interface.
6. Installation & Setup
Requirements:
- PXI or CompactPCI chassis with available 3U slot.
- Compatible PXI controller or embedded PC.
- Appropriate software drivers and configuration utilities.
Installation Steps:
1. Power off the PXI chassis (unless hot-swap operation is supported and enabled).
2. Insert the PXI-7641 module into an available 3U slot, aligning the guide rails.
3. Secure the module using the front-panel screws.
4. Power on the chassis; the module will be automatically detected by the PXI controller.
5. Install the necessary drivers and software utilities from ADLINK.
6. Configure relay channels through the provided software interface or via programmatic control (e.g., LabVIEW, C/C++, or Python APIs).
Mounting Options:
- Standard PXI front-panel mounting with captive screws.
- Hot-swap insertion supported per PICMG 2.1 R1.0 specification.
Configuration:
- Channels can be individually controlled via software commands.
- Relay states can be read back for verification.
- Supports initialization states and default configurations upon power-up.
7. Performance & Capabilities
Switching Performance:
- Each relay channel supports up to 5A continuous current.
- Capable of switching 250 VAC or 30 VDC loads.
- Maximum switching capacity of 1250 VA (AC) or 150 W (DC) ensures suitability for medium-power applications.
Speed and Response:
- Typical relay operate time: 10–15 ms.
- Typical release time: 5–10 ms.
- Bounce time: <5 ms (typical).
Capacity and Efficiency:
- 8 channels allow simultaneous control of multiple circuits, optimizing test throughput.
- Low contact resistance ensures minimal power loss and heat generation.
- Efficient design minimizes backplane power consumption.
Limitations:
- Not intended for high-frequency or high-speed signal switching (mechanical relay limitations).
- Maximum current and voltage ratings must not be exceeded to prevent contact damage.
- Inductive loads should be properly suppressed to extend relay life.
8. Standards & Compliance
- PXI Standard Compliance: PXI-1, PXI Hardware Specification Revision 2.2
- CompactPCI Compliance: PICMG 2.0 R3.0
- Hot Swap Compliance: PICMG 2.1 R1.0 (supports hot insertion/removal)
- Electrical Safety: Designed to meet IEC/EN 61010-1 requirements for measurement and control equipment.
- EMC Compliance: Conforms to EN 61326-1 for electromagnetic compatibility.
- RoHS Compliance: Fully compliant with EU RoHS Directive for hazardous substance restriction.
- Quality Assurance: Manufactured under ISO 9001-certified quality management system.
9. Additional Information
Warranty:
- Standard 2-year limited warranty from ADLINK Technology, covering defects in materials and workmanship under normal use.
Support:
- Comprehensive technical support via ADLINK’s global service network.
- Online resources include driver downloads, software updates, and documentation.
- Application notes and example code available for integration with major test software platforms.
Maintenance:
- Periodic inspection recommended for relay wear and contact integrity.
- Replace relays after rated electrical life cycles for optimal reliability.
- Keep module free from dust and contaminants; use in controlled environments.
Firmware and Software Updates:
- Firmware updates (if applicable) available through ADLINK’s support portal.
- Compatible with ADLINK’s PXI software suite for configuration and diagnostics.
Serviceability:
- Hot-swappable design allows replacement without system downtime.
- Modular architecture simplifies field maintenance and upgrades.
Environmental Considerations:
- Designed for long-term operation in laboratory and industrial environments.
- Complies with environmental and safety standards for electronic instrumentation.
Summary
The ADLINK PXI-7641 is a robust, high-current 8-channel Form C relay card engineered for PXI and CompactPCI systems. With 5A per channel switching capacity, 1250 VA / 150 W maximum load, and hot-swap compliance, it provides a reliable and flexible solution for power and signal switching in automated test setups. Its 3U PXI form factor, plug-and-play functionality, and industrial-grade design make it ideal for demanding applications in manufacturing test, R&D, and system integration.
By combining high electrical performance, modular scalability, and compliance with PXI and PICMG standards, the PXI-7641 delivers dependable switching performance and seamless integration into modern test and measurement infrastructures.
Name: PXI-7641
Model: PXI-7641
Series: PXI / CompactPCI 3U Relay Module Series
Article Number: PXI-7641
Manufacturer: ADLINK Technology Inc.
The ADLINK PXI-7641 is a high-performance PXI (PCI eXtensions for Instrumentation) and CompactPCI (cPCI) compatible relay card designed for automated test and measurement systems. It provides 8 independent power relay channels in a 3U PXI form factor, offering robust switching capabilities for both AC and DC loads. The module is engineered for industrial-grade reliability, supporting 5A Form C (SPDT) relays with a maximum switching capacity of 1250 VA for AC or 150 W for DC applications. Fully compliant with PICMG 2.1 R1.0 hot-swap specifications, the PXI-7641 integrates seamlessly into PXI and CompactPCI chassis, enabling flexible, modular test configurations.
2. Key Features
- 8 Independent Power Relay Channels: Each channel operates independently, allowing simultaneous control of multiple circuits or devices.
- Form C (SPDT) Relay Configuration: Each relay provides both normally open (NO) and normally closed (NC) contacts, enabling versatile switching topologies.
- High Current Capacity: Rated for 5A switching current per channel, suitable for power-level signal routing and load control.
- High Voltage and Power Ratings: Supports up to 250 VAC or 30 VDC, with a maximum switching capacity of 1250 VA (AC) or 150 W (DC).
- PXI / CompactPCI 3U Form Factor: Designed for integration into standard PXI or CompactPCI chassis, ensuring compatibility with modular instrumentation systems.
- Hot-Swappable (PICMG 2.1 R1.0 Compliant): Supports live insertion and removal without system shutdown, minimizing downtime and improving serviceability.
- Plug-and-Play Operation: Automatically recognized by PXI controllers, simplifying configuration and reducing setup time.
- Compact Design: Standard 3U size (100 mm x 160 mm) for efficient use of chassis space.
- Industrial Reliability: Built with high-quality relays and durable PCB materials for long operational life and consistent performance.
- Flexible Application Range: Ideal for automated test equipment (ATE), signal routing, load switching, and power control in laboratory and production environments.
3. Technical Specifications
- Form Factor: PXI / CompactPCI 3U
- Bus Interface: PXI / cPCI backplane compatible
- Number of Channels: 8 independent relay channels
- Relay Type: Form C (SPDT) power relays
- Contact Configuration: Single Pole Double Throw (SPDT)
- Contact Rating:
- Switching Current: 5 A (maximum)
- Switching Voltage: 250 VAC / 30 VDC (maximum)
- Switching Power: 1250 VA (AC) / 150 W (DC)
- Contact Resistance: Typically <100 mΩ (initial)
- Insulation Resistance: ≥1000 MΩ at 500 VDC (typical)
- Dielectric Strength: 1500 VAC between open contacts, 2000 VAC between coil and contacts (typical values for Form C relays)
- Mechanical Life: >10⁷ operations (no load)
- Electrical Life: >10⁵ operations (rated load)
- Dimensions: 100 mm (W) × 160 mm (L) × 20 mm (approx. thickness)
- Weight: Approximately 250–300 g (typical for 3U relay modules)
- Operating Temperature: 0°C to +55°C (typical PXI environment)
- Storage Temperature: -20°C to +70°C
- Humidity: 10% to 90% RH, non-condensing
- Power Requirements: Supplied via PXI backplane (nominal 5 VDC and 12 VDC rails)
- Connector Type: Standard PXI/cPCI rear I/O connector (DIN 41612 or equivalent)
4. Functionality
The PXI-7641 functions as an 8-channel power relay switching module, enabling users to control and route electrical signals or power lines within a PXI-based test system. Each channel operates independently, allowing flexible configuration for switching AC or DC loads.
Operating Principle:
Each relay channel consists of a Form C (SPDT) contact set, providing one common terminal, one normally open (NO), and one normally closed (NC) contact. When the relay coil is energized, the common terminal switches from the NC contact to the NO contact, allowing controlled connection or disconnection of circuits.
Use Cases and Applications:
- Automated Test Equipment (ATE): Switching test signals, routing power to devices under test (DUTs), or isolating circuits.
- Industrial Control Systems: Controlling actuators, solenoids, or power distribution lines.
- Signal Routing and Multiplexing: Dynamically connecting measurement instruments to multiple test points.
- Load Simulation: Switching resistive, inductive, or capacitive loads for performance testing.
- Power Management: Enabling or disabling power rails in system-level testing.
Compatibility:
- Fully compatible with PXI and CompactPCI chassis conforming to PXI-1 and PICMG 2.0 standards.
- Operates with PXI controllers from ADLINK, National Instruments, and other compliant vendors.
- Supported by standard PXI software frameworks and drivers for Windows and Linux environments.
5. Components & Accessories
Included Items:
- PXI-7641 relay card (main module)
- User manual and quick start guide (digital or printed)
- Driver and software utilities (if applicable, downloadable from ADLINK support site)
Optional Accessories:
- Terminal Block or Cable Assembly: For easy connection to external circuits (specific models may include ADLINK TB-7641 or equivalent).
- Rack Mount or Chassis: Compatible with ADLINK PXI-1000, PXES-2590, or other PXI/cPCI chassis.
- Replacement Relays: OEM-specified Form C relays for maintenance or extended service life.
Connectors:
- Standard PXI/cPCI rear I/O connector for backplane communication and power.
- Front-panel connector (if applicable) for external signal wiring, typically via a high-density D-sub or terminal block interface.
6. Installation & Setup
Requirements:
- PXI or CompactPCI chassis with available 3U slot.
- Compatible PXI controller or embedded PC.
- Appropriate software drivers and configuration utilities.
Installation Steps:
1. Power off the PXI chassis (unless hot-swap operation is supported and enabled).
2. Insert the PXI-7641 module into an available 3U slot, aligning the guide rails.
3. Secure the module using the front-panel screws.
4. Power on the chassis; the module will be automatically detected by the PXI controller.
5. Install the necessary drivers and software utilities from ADLINK.
6. Configure relay channels through the provided software interface or via programmatic control (e.g., LabVIEW, C/C++, or Python APIs).
Mounting Options:
- Standard PXI front-panel mounting with captive screws.
- Hot-swap insertion supported per PICMG 2.1 R1.0 specification.
Configuration:
- Channels can be individually controlled via software commands.
- Relay states can be read back for verification.
- Supports initialization states and default configurations upon power-up.
7. Performance & Capabilities
Switching Performance:
- Each relay channel supports up to 5A continuous current.
- Capable of switching 250 VAC or 30 VDC loads.
- Maximum switching capacity of 1250 VA (AC) or 150 W (DC) ensures suitability for medium-power applications.
Speed and Response:
- Typical relay operate time: 10–15 ms.
- Typical release time: 5–10 ms.
- Bounce time: <5 ms (typical).
Capacity and Efficiency:
- 8 channels allow simultaneous control of multiple circuits, optimizing test throughput.
- Low contact resistance ensures minimal power loss and heat generation.
- Efficient design minimizes backplane power consumption.
Limitations:
- Not intended for high-frequency or high-speed signal switching (mechanical relay limitations).
- Maximum current and voltage ratings must not be exceeded to prevent contact damage.
- Inductive loads should be properly suppressed to extend relay life.
8. Standards & Compliance
- PXI Standard Compliance: PXI-1, PXI Hardware Specification Revision 2.2
- CompactPCI Compliance: PICMG 2.0 R3.0
- Hot Swap Compliance: PICMG 2.1 R1.0 (supports hot insertion/removal)
- Electrical Safety: Designed to meet IEC/EN 61010-1 requirements for measurement and control equipment.
- EMC Compliance: Conforms to EN 61326-1 for electromagnetic compatibility.
- RoHS Compliance: Fully compliant with EU RoHS Directive for hazardous substance restriction.
- Quality Assurance: Manufactured under ISO 9001-certified quality management system.
9. Additional Information
Warranty:
- Standard 2-year limited warranty from ADLINK Technology, covering defects in materials and workmanship under normal use.
Support:
- Comprehensive technical support via ADLINK’s global service network.
- Online resources include driver downloads, software updates, and documentation.
- Application notes and example code available for integration with major test software platforms.
Maintenance:
- Periodic inspection recommended for relay wear and contact integrity.
- Replace relays after rated electrical life cycles for optimal reliability.
- Keep module free from dust and contaminants; use in controlled environments.
Firmware and Software Updates:
- Firmware updates (if applicable) available through ADLINK’s support portal.
- Compatible with ADLINK’s PXI software suite for configuration and diagnostics.
Serviceability:
- Hot-swappable design allows replacement without system downtime.
- Modular architecture simplifies field maintenance and upgrades.
Environmental Considerations:
- Designed for long-term operation in laboratory and industrial environments.
- Complies with environmental and safety standards for electronic instrumentation.
Summary
The ADLINK PXI-7641 is a robust, high-current 8-channel Form C relay card engineered for PXI and CompactPCI systems. With 5A per channel switching capacity, 1250 VA / 150 W maximum load, and hot-swap compliance, it provides a reliable and flexible solution for power and signal switching in automated test setups. Its 3U PXI form factor, plug-and-play functionality, and industrial-grade design make it ideal for demanding applications in manufacturing test, R&D, and system integration.
By combining high electrical performance, modular scalability, and compliance with PXI and PICMG standards, the PXI-7641 delivers dependable switching performance and seamless integration into modern test and measurement infrastructures.
No manuals/catalogs available.
No accessories available.
