1. Product Introduction & Overview

The 8C‑TPOXA1 is an Input/Output Terminal Assembly (IOTA) module (specifically a Printed Wiring Assembly, PWA) in the Series 8 ecosystem. It acts as the interface between control modules and field wiring: it receives I/O signals and routes them to the control modules, and also provides connectivity, grounding, redundancy synchronization, and diagnostic functions.

Because it is a coated version, it is designed for robustness in industrial environments, with enhanced protection against moisture, dust, corrosion, and other harsh ambient conditions. It supports redundancy (dual IOTA modules synchronized), multiple connector types, and integrates with Series 8 modules and power/grounding systems.

In a control rack, the 8C‑TPOXA1 connects I/O link cables, field wiring, redundant sync cables, and potentially network communications (e.g. via DB9 connectors). It is essential for connecting field devices to logic modules in a clean, modular way.

2. Brand, Series & Positioning

Thus, 8C‑TPOXA1 is not itself a logic module nor an I/O processing module, but a connectivity/terminal board that supports the signal routing, redundancy, grounding and interface aspects in the Series 8 control architecture.

3. Technical Specifications (Parameters)

Here is a table summarizing known / commonly cited parameters for 8C‑TPOXA1, based on available public supplier data and referenced parts. Some values are approximate and should be verified with official manufacturer documentation.

4. Applications & Use Cases

The 8C‑TPOXA1 is used in the following industrial settings and control architectures:

• Distributed Control Systems / DCS / Process Control: as the terminal board for I/O signals linking to control modules.

• Redundant Control Configurations: used in dual IOTA setups to ensure continuity in case one path fails.

• Interface to Field Wiring: organizes cable runs, ground loops, signal termination, and connector adaptation between I/O modules and field devices.

• Network / Protocol Gateways: in some architectures, it can also serve as the connection point for network communications (e.g. Profibus) in the I/O system.

• Harsh Environmental Conditions: in plants with moisture, dust, corrosive gases, where a coated terminal solution is necessary.

• Control System Upgrades / Retrofits: when integrating newer I/O modules or upgrading a control rack, 8C‑TPOXA1 provides compatibility with Series 8 wiring.

• Safety / Redundancy Demands: in systems requiring failover, continuity, and consistent signal routing under fault conditions.

Because the module is passive interface hardware, its reliability and electrical integrity are critical to overall system stability even though it does not perform processing.

5. Advantages & Key Strengths

Here are the core advantages of 8C‑TPOXA1:

1. Environmental Protection via Coating
   The coated version withstands moisture, dust, and chemical corrosion, making it suitable for harsh industrial settings.

2. Support for Redundancy
   Designed to support redundant IOTA configurations, enabling fault tolerance and continuity of signal paths.

3. Multiple Connector Interfaces
   It provides CAT5e, DB9, and sync cable connectors, giving flexibility in wiring topologies and network interface.

4. Integration with Series 8 Power & Grounding
   Seamless integration into the Series 8 I/O link, grounding, and power distribution scheme simplifies system deployment.

5. Compact and Lightweight Design
   At approximately 120 × 30 × 110 mm and 0.35 kg, it occupies minimal space and adds little mass to the rack.

6. Ease of Maintenance and Replacement
   Modular, plug‑in design aids in quick replacement and maintenance without extensive rewiring.

7. Diagnostic / Signal Integrity Assurance
   While it does not process logic, it ensures signal continuity and integrity from field devices to logic modules.

8. Standard Compliance & Reliability
   Adherence to UL, CE, and RoHS ensures compatibility with industrial standards and safety regulations.

These strengths make 8C‑TPOXA1 a reliable backbone component in industrial control I/O architectures.

6. Recommended Related & Popular Models

6.1 Related / Same Series / I/O Interface Modules

Here are 5 models in the same functional family (IOTA / terminal interface / related to input/output terminal assemblies) or variants:

These modules differ in protective coating, number of termination points, redundancy support, or layout. In designs you might mix them depending on field wiring complexity, location, and redundancy scheme.

6.2 Other Popular Honeywell Modules (Same Brand)

Here are 5 widely used Honeywell modules of other kinds (logic, I/O, controller) frequently co‑deployed in the same control systems: