Description
Key Technical Specifications
- Model Number: CC-TAOX11 (51308353-175)
- Manufacturer: Honeywell
- Series: Experion C300 DCS System
- Product Type: Redundant I/O Terminal Board
- Signal Compatibility: Analog Output (AO)
- Redundancy Level: Fully Redundant (Suffix ’11’)
- Module Compatibility: Pairs with CC-PAOX01 / CC-PAOH01
- Installation: C-Series Redundant Backplane
- Field Wiring: Direct connection to field transmitters/valves
Functional Role & Application Analysis
The Honeywell CC-TAOX11 serves as the redundant analog output terminal board for the Experion C300 DCS platform. It acts as the critical physical interface between the C300 controller’s analog output modules and the field instrumentation, such as control valves and variable frequency drives. The primary pain point this board solves is single-point failure in continuous process control. The ’11’ suffix denotes full redundancy. If the primary terminal board or its associated wiring fails, the redundant board instantly takes over without interrupting the 4-20mA signal to the field device. This guarantees uninterrupted process control and prevents costly plant trips.
Typical Use Cases:
- Continuous Process Control: Providing fail-safe analog control signals to critical control valves in petrochemical and refining processes.
- Redundant System Upgrades: Replacing failed or obsolete non-redundant terminal boards (like the CC-TAOX01) to upgrade system reliability.
- Critical Infrastructure: Ensuring uninterrupted actuator control in power generation and water treatment facilities where downtime is unacceptable.
Our Quality Standard & Testing Process
We understand that the cost of an unreliable part is far greater than its purchase price. A failed redundant terminal board can compromise the entire safety architecture of a DCS loop. We have established a rigorous, multi-stage testing process to ensure every product we ship is 100% functional.
- Visual & Component Inspection: All boards undergo professional cleaning and high-magnification inspection to ensure no physical damage, trace corrosion, or compromised solder joints.
- Live System Test: The board is installed in a live C300 redundant test rack and run for 24 hours to verify continuous backplane communication and redundancy handover.
- Signal Path Verification: We simulate 4-20mA signals through both primary and redundant paths to verify accurate signal routing and zero signal degradation.
- Warranty Backing: Only parts that pass all diagnostic tests are approved for shipment and backed by our full 12-month warranty.
Honeywell CC-TAOX11 51308353-175
Compatibility & Migration Paths
To ensure this CC-TAOX11 is 100% compatible with your system, you must check these key compatibility points. Failure to verify this is a common project risk that leads to extended downtime.
- Exact Part Number Match: You must verify the full number 51308353-175. Suffix variations indicate different hardware revisions that may not be backward-compatible.
- Module Pairing: Confirm you are pairing this redundant terminal board with a redundant analog output module (e.g., CC-PAOH01). Pairing it with a non-redundant module defeats the purpose of the ’11’ redundancy.
- Backplane Configuration: Verify your C-series backplane is properly configured and wired for redundant I/O operation.
- Get Expert Help: Unsure about your system configuration or module pairing? Contact our technical team today for a free compatibility check.
