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- VMIVME3125
| Specification | Detail |
|---|---|
| Model | GE VMIVME3125 |
| Brand / Lineage | GE / VMIC / Abaco Systems (VME I/O family) |
| Module Type | Analog-to-Digital Converter (A/D) Module |
| Inputs | 32 single-ended or 16 differential channels |
| Resolution | 12 bit |
| Sampling Rate | 40 kHz aggregate across all channels |
| Gain Options | ×1, ×10, ×100 (jumper selectable) |
| Input Ranges | ±5 V, ±10 V, 0–10 V (jumper/configurable) |
| Isolation | 1,000 V analog ground to digital ground |
| Data Coding | Offset binary, two’s complement (selectable) |
| Filtering | Built-in low-pass filters (standard 50 kHz, optional 40 Hz) |
| Overvoltage Protection | Yes, per input channel |
| Bus Interface | VMEbus (6U module) |
| Built-in Test | Self-test and diagnostics features |
| Operating Temperature | 0 °C to 55 °C (typical) |
| Storage Temperature | –40 °C to +85 °C |
| Physical | Standard 6U VME form factor |
Product Model: GE VMIVME3125
Product Brand: GE / VMIC / Abaco (historical)
Product Series: VME Analog Input Modules
Product Features:
- 32-channel 12-bit analog-to-digital conversion (or 16 differential)
- Isolated analog ground to digital ground (1,000 V isolation)
- Programmable gains (×1, ×10, ×100) and input ranges
- 40 kHz aggregate conversion rate across channels
Product Role & System Fit
Within a VMEbus-based control rack, the GE VMIVME3125 serves as a front-end analog input module. It digitizes sensor signals and places them into dual-ported memory spaces, accessible by the host CPU or real-time control logic. The isolated design ensures that analog channel drift or noise does not corrupt digital logic.
The module often works in tandem with other VME cards such as DAC modules, digital I/O, communications boards, and CPU boards. The CPU reads values from the VMIVME3125’s registers via VME bus protocols, processes the data (control loops, alarms, logging), and possibly commands outputs.
Because of its configuration flexibility (gain, coding, filtering), the VMIVME3125 can adapt to many signal ranges, making it an excellent general-purpose ADC module in a modular VME environment.
