Product Core Brief
- Model: 42011-106-00 A01 ITC_VIOM_VIOC VER.A01
- Brand: ALSTOM
- Series: ITC / VIOM / VIOC
- Core Function: I/O controller module for ALSTOM ITC/VIOM/VIOC racks, managing discrete and analog field signals.
- Product Type: I/O Controller Module
- Key Specs: 24 VDC discrete I/O | 4–20 mA / 0–10 V analog support via companion cards | 0 to +55 °C operating range
- Condition: New Original / New Surplus
Product Introduction
ALSTOM 42011-106-00 A01 ITC_VIOM_VIOC VER.A01 is an I/O controller module built for ALSTOM ITC/VIOM/VIOC rack systems. It handles discrete 24 VDC signals and coordinates analog 4–20 mA / 0–10 V channels through companion VIOM/VIOC interface cards.
The VER.A01 build level keeps behavior consistent across installed bases, especially where redundant racks or legacy turbine, substation, and process controls depend on stable scan timing. Typical cabinet rating runs 0 to +55 °C, with front-panel LEDs for fast health checks.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Full Model | 42011-106-00 A01 ITC_VIOM_VIOC VER.A01 |
| Product Type | I/O Controller Module |
| System Family | ALSTOM ITC / VIOM / VIOC |
| Revision | VER.A01 |
| Discrete I/O | 24 VDC DI/DO |
| Analog Support | 4–20 mA / 0–10 V via companion I/O cards |
| Communication | System backplane bus; front terminal/connectors; optional service serial header |
| Power | Backplane logic power, commonly 5 VDC; field side typically 24 VDC |
| Form Factor | Approx. 6U Eurocard, about 233 × 160 mm |
| Weight | About 0.6–0.8 kg |
| Operating Temperature | 0 to +55 °C |
| Installation | Rack slide-in card with front-panel fastening screws |
Quality Control Process
- Visual & revision check: Inspect PCB, connectors, front hardware, and VER.A01 marking for consistency with site documentation.
- Backplane continuity test: Verify pin contact and backplane power rails with a Fluke multimeter before energizing the rack.
- I/O signal verification: Inject 24 VDC discrete signals and 4–20 mA / 0–10 V analog references through companion VIOM/VIOC cards; confirm channel response on the controller.
- Communication & diagnostics: Check backplane bus communication, LED status indicators, and any service-port responses for stable operation.
- Final packing: Record test results, apply asset labels, and ship in anti-static packaging with edge protection for the Eurocard.
Replacement Pitfall Guide
❗ Match VER.A01 exactly. Swapping in a different revision can change timing, diagnostics, or backplane behavior on legacy ITC/VIOM/VIOC racks.
❗ Don’t assume analog channels live on this controller. Analog 4–20 mA / 0–10 V usually runs through companion I/O cards, so wiring and channel maps must be checked separately.
❗ Check backplane power draw. Adding or replacing controller and I/O cards can push the rack’s 5 VDC/24 VDC budget, especially in older cabinets.
❗ Verify connector orientation and retention screws. A partially seated 6U card can pass basic LED checks but fail under load or vibration.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| ALSTOM 42011-106-00 A01 ITC_VIOM_VIOC VER.A01 | ALSTOM 42011-106-00 A01 ITC_VIOM_VIOC VER.A01 | Direct | Like-for-like VER.A01 replacement in existing ITC/VIOM/VIOC racks. |
| ALSTOM 42011-106-00 A01 ITC_VIOM_VIOC VER.A01 | ALSTOM ITC/VIOM/VIOC successor module | Needs Adaptation | Confirm revision, firmware, backplane slot rules, and I/O mapping before migration. |
- Typical cabinet rating: 0 to +55 °C for industrial control environments.
- Signal handling: 24 VDC discrete I/O, with analog channels managed through related VIOM/VIOC interface cards.
