The NI PXI-4021 is a PXI/PCI slot-mounted switch controller designed to command SCXI-based switching systems in automated test environments. It delivers precise control over signal routing and device connectivity through the IVI-compliant NI-SWITCH driver, with optional NI Switch Executive software for advanced switch management and visual routing capabilities.
Technical Specifications
• Module Type: PXI Switch Controller
• Part Number: 778277-01
• Host Interface: PCI or PXI slot
• Maximum Connections (Scanning): Up to 32,000 connections per download
• Software: NI-SWITCH driver (IVI-compliant); optional NI Switch Executive
• Terminal Options: Screw, spring, or ribbon cable terminals
• Control Interface: 9-pin AUX connector (SH9MD-9MD)
– Key Features
• Configurable as independent switch banks for custom topologies
• Scanning capability with event-triggered cycling—up to 32,000 connections downloaded without host intervention
• Modular expansion via multiple controllers to address high-channel-count systems
• Compatible with SCXI-1357 and SCXI-1358 high-voltage backplane adapters and SCXI-1362 low-voltage adapter
• USB control option available via USB-1359 communication adapter for SCXI chassis without PCI/PXI slots
– Typical Applications
Automated test and measurement systems requiring multiplexed signal routing, device connectivity management, and high-speed bank switching across large connection matrices.
– Compatibility & Integration
Supported SCXI Modules: SCXI-1102/B/C, SCXI-1124, SCXI-1127/1128, SCXI-116X family, SCXI-1190/1191
Backplane Adapters: SCXI-1357, SCXI-1358 (high-voltage), SCXI-1362 (low-voltage)
Alternative Interface: USB-1359 adapter enables SCXI chassis control via USB, eliminating PCI/PXI slot requirements.
