The V387-ZA11 is a single-width, C-size VXIbus module delivering up to 128 digital input/output channels in a register-based architecture. Four interchangeable P300 series mezzanine cards, each supporting 32 channels, enable flexible I/O configuration. Engineers can deploy non-isolated bidirectional options (TTL single-ended or RS-422 differential) or isolated input modules rated for voltages from TTL through 120 V ac, all with programmable input filtering and 500 V isolation.
## Technical Specifications
• Form Factor: Single-width, C-size VXIbus module
• Total Channels: Up to 128 digital input/output
• Mezzanine Card Slots: Four P300 series cards, 32 channels per card
• Non-Isolated Options: 32-channel TTL single-ended or 16-channel RS-422 differential
• Isolated Input Voltage Ratings: TTL, 12 V dc, 16 V dc, 24 V dc, 28 V dc, 48 V dc, 120 V ac
• Isolation Level: 500 V
• Input Current: 5 mA to 15 mA (at rated voltage)
• Switching Threshold (Turn-On): 75% of rated voltage, nominal
• Switching Threshold (Turn-Off): 45% of rated voltage, nominal
• Input Filter Time Constant: Programmable, 5 µs to 1 s in 64 steps
• Read/Write Cycle Times: 16-bit at 1 µs typical; 32-bit at 2 µs typical
## Key Features
• Register-based module control with manual logical address setting via eight rocker switches
• Trigger generation, interrupt on pattern recognition, and change-of-state detection
• VXIbus Local Bus: 12 user-defined lines for daisy-chaining and private data paths to adjacent modules
• TTL and ECL trigger line support; 10 MHz ECL clock access
• Module ID line for geographic addressing
• Optional Digi-bus interfacing via P500 (transmit) or P501 (receive) cards
## Typical Applications
Relay and solenoid control, lamp switching, digital signal acquisition from multiple device sources, and multi-channel test automation in VXIbus instrumentation systems.
## Compatibility & Integration
The module integrates directly into VXIbus systems and supports Kinetic Systems 5819-series cabling (5819-B, 5819-D, 5819-F, 5819-G). Optional Digi-bus cards extend communication capability within larger test environments.
