Triaxial (TriAx) BNC connectors have three concentric conductors: inner signal, inner shield (guard), and outer shield (ground). Used for high-impedance low-noise measurements where a guard circuit eliminates leakage currents.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | Inner | Signal conductor | ADC |
| 2 | Guard | Guard shield at signal potential | I/O |
| 3 | Outer | Ground outer shield | GND |
Triaxial (TriAx) BNC connectors have three concentric conductors: inner signal, inner shield (guard), and outer shield (ground). Used for high-impedance low-noise measurements where a guard circuit eliminates leakage currents.