VXI (VMEbus eXtensions for Instrumentation) uses the VME P1 and P2 backplane connectors for modular test instruments in mainframe chassis. VXI-11 protocol enables LAN-based instrument control.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | D0-D31 | VME 32-bit data bus | BUS |
| 2 | A0-A31 | VME 32-bit address bus | I/O |
| 3 | SYSCLK | 10 MHz VXI system clock | BUS |
| 4 | TTLTRG0-7 | TTL trigger lines 0-7 | I/O |
| 5 | GND | Ground | GND |
| 6 | VCC | Plus 5V supply | PWR |