Key Technical Specifications
- Product Model: 2AX-ALM-AR
- Manufacturer: FOXBORO
- Product Type: Alarm Control Module / PCB
- System Compatibility: Foxboro I/A Series
- Form Factor: Plug-in Adapter Module
- Function: ABS Alarm Control Card
- Application: Distributed Control System (DCS)
- Mounting: Backplane Slot Insertion
- Condition: New Surplus / Tested
- Warranty: Standard Supplier Warranty
Product Introduction
FOXBORO 2AX-ALM-AR acts as a dedicated alarm control module within the I/A Series distributed control system. It processes system alerts and communicates status to upper-level networks.Field experience indicates this board often requires an adapter module for proper backplane integration. It handles critical alarm routing for legacy process plants. (Always cross-reference the exact part number on the PCB silkscreen, as Foxboro revisions vary).
Installation & Configuration Guide
Preparation (10 min): Gather anti-static wrist straps and the I/A Series system documentation. Verify the backplane slot is powered down and isolated.Removal (5–10 min): Disconnect any external alarm wiring. Release the module extraction levers. Pull the 2AX-ALM-AR straight out to avoid bending backplane pins.Installation (10 min): Align the module with the backplane guides. Insert evenly and secure the extraction levers. Ensure the adapter module is fully seated if applicable.Power-On & Test (10 min): Restore backplane power. Check the module status LEDs for normal operation. Verify alarm points in the operator workstation software.
Troubleshooting Quick Reference
- Module Not Recognized: Check backplane seating. Reseat the module and inspect pins for damage.
- False Alarms Triggering: Inspect field wiring for shorts or ground faults. Verify sensor calibration.
- Communication Loss: Check the adapter module connection. Ensure the I/A Series network cables are secure.
- Status LED Off: Measure backplane voltage at the slot. Verify 5 VDC and 24 VDC rails are within tolerance.
Dimensions, Mounting & Wiring Notes
- Dimensions: Standard I/A Series Module Footprint
- Weight: Approx. 0.2 kg
- Mounting Method: Backplane Slot Insertion with Extraction Levers
- Wiring Notes: Use shielded cable for alarm inputs. Ground shields at the cabinet ground bar only.
FAQ
Is this module compatible with newer I/A Series systems?
Compatibility depends on the hardware revision. The 2AX-ALM-AR is primarily for legacy systems. Check your system documentation or provide your chassis model for verification.I need this shipped immediately. Do you have stock?
Yes. We carry New Surplus inventory. Orders placed before 2 PM EST ship same-day.Can I replace my 2AX-ALM-AR with a newer version?
Upgrades are possible but require engineering validation. The adapter module and backplane firmware must support the newer revision.How do I test this module before installing it?
We perform functional testing on a test rack before shipment. You can also bench-test it using a compatible I/A Series carrier and power supply.What if the module fails after installation?
Contact our support team with the fault code. We will troubleshoot remotely and replace the unit if it fails under verified test conditions.I lost the adapter module. Can you supply it separately?
Yes. The adapter module is sometimes sold separately. Provide your chassis model so we can match the correct adapter for your 2AX-ALM-AR.







