The Agilent/Keysight E1408B is a multi-channel digital data acquisition module for VXI systems, delivering TTL-level input/output across twelve 8-bit bi-directional ports organized into three banks. It supports block memory transfers up to 325 Kb/s for 32-bit operations, with individual port configurability for logic polarity, read/write, and tri-state modes. The module integrates six GPIO handshake protocols—none, leading edge, trailing edge, pulse, partial, and strobe—enabling flexible timing control. Ports can be combined for byte, word, or long-word data transmission from a single or multiple sources. The E1408B plugs into Agilent E1400 series VXI mainframes as a C-size, 1-slot module and features an SCPI command set that extends E1330B compatibility with additional port read-back and monitoring queries.
Technical Specifications
• Module Type: Digital Data Acquisition (C-size, 1-slot VXI)
• Data Channels: Twelve 8-bit bi-directional ports in three banks
• Logic Standard: TTL
• Data Transmission: Block transfers; ports configurable for 8-bit, 16-bit, or 32-bit widths
• Block Transfer Rate: Up to 325 Kb/s (32-bit)
• Handshake Protocols: Six modes (none, leading edge, trailing edge, pulse, partial, strobe)
• Power: +5 V @ 1.2 A; 2.50 W per slot
– Key Features
• Twelve independently configurable 8-bit ports with individual logic polarity and direction control
• Tri-state and read/write operation modes per port
• Multi-port block transfers from any combination of ports
• SCPI superset command set with port data queries and output monitoring
• Compatible with all C-SCPI/I-SCPI platforms and Agilent E1406A command modules
– Typical Applications
• Digital signal control and monitoring in automated test systems
• Multi-channel logic-level data acquisition and synchronization
• Real-time handshake-based I/O operations
• VXI-based modular instrumentation setups
– Compatibility & Integration
The E1408B integrates with Agilent VXI mainframes via single-slot C-size form factor and supports downloadable instrument drivers for system integration.
