The Keysight E1330B is a B-size VXI digital input/output module providing four independent 8-bit ports for flexible data communication and control. Each port configures individually for input or output operation with selectable positive or negative true logic, enabling bit-level, byte, 16-bit word, or 32-bit long-word data transmission. The module integrates three SCPI-dedicated handshake lines per port—FLG (flag/data handshaking input), CTL (control/data handshaking output), and I/O (status line)—supporting standard GPIO handshake protocols and opto-isolator rack interfaces. Distinguished by Release on Acknowledge (ROAK) interrupt circuitry, the E1330B directly supports C-SCPI, ISCPI in SICL, and plug-and-play driver environments, differentiating it from the RORA-based E1330A.
Technical Specifications
• Form Factor: B-size, single-slot VXI module
• Port Configuration: 4 independent 8-bit digital I/O ports
• Logic Levels: Positive or negative true logic selectable per port
• Data Transmission Modes: Individual bits, bytes (8-bit), words (16-bit), long words (32-bit)
• Handshake/Control Lines: Three dedicated lines per port (FLG, CTL, I/O) for SCPI programming; additional lines support custom handshaking and interrupt functions
• Interrupt Handling: Release on Acknowledge (ROAK) circuitry
• Interface Type: Register-based VXI with direct backplane control
– Key Features
• Four independent 8-bit ports—each independently configurable for input or output
• Flexible data word assembly from individual bits to 32-bit long words
• Standard GPIO handshake modes with flag line combining for multi-port operations
• SCPI-optimized control architecture with ROAK interrupt support
• Compatible with industry-standard opto-isolator racks
– Typical Applications
Digital communication and control requiring multi-bit parallel data transmission, timing-critical handshaking, and modular VXI-based test automation.
– Compatibility & Integration
Command Modules: E1300A, E1301A, E1306A
VXI Devices: E1405A/B, E1406A
Software Support: C-SCPI, ISCPI in SICL, plug-and-play drivers (ROAK-dependent)
