Technical Specifications

FAQ

1. What is P0926MX used for in a Foxboro control system?
P0926MX is used as a splitter/combiner installation kit for Foxboro control network applications. It provides the mechanical components required to install splitter/combiner modules within the control system architecture. The kit is designed to accommodate two splitter/combiner modules and can be installed on a DIN rail or baseplate, making it suitable for organized industrial control network installations.

2. What components are included in the P0926MX kit?
The P0926MX kit is associated with a splitter/combiner case and two splitter/combiner modules. The installation hardware includes the components required for DIN rail or baseplate mounting, such as mounting screws, a spring clip, a lock washer, and baseplate mounting screws. This configuration allows the splitter/combiner assembly to be mechanically secured and integrated into the control system installation.

3. Which Foxboro systems are compatible with P0926MX?
P0926MX is intended for Foxboro control network applications and is associated with Foxboro I/A Series control system hardware. It can be used with compatible splitter/combiner components within the control network architecture. Before installation, the system hardware configuration should be checked to confirm that the required splitter/combiner modules, baseplates, network interfaces, and fiber connections are compatible with the existing system.

4. How is P0926MX mounted in an industrial control cabinet?
The kit supports DIN rail or baseplate mounting. When DIN rail mounting is selected, the appropriate spring clip, washer, and mounting screw are used to secure the assembly. For baseplate mounting, the specified baseplate screws are used to fasten the case to the mounting surface. The mounting method should be selected according to the existing Foxboro cabinet or subsystem arrangement, while ensuring that the installed components have sufficient clearance for fiber connections and maintenance.

5. What type of fiber network can be used with the P0926MX installation?
The P0926MX installation is associated with the Foxboro control network architecture using 100Base-FX fiber communication. The corresponding control network documentation specifies 1310 nm operation and supports 50/125 μm or 62.5/125 μm multimode fiber. When replacing or installing associated fiber components, the fiber type, optical interfaces, wavelength, and connected network equipment should be checked to ensure that all components are compatible.

6. What is the function of the splitter/combiner modules installed in the P0926MX kit?
The splitter/combiner modules provide signal distribution and combination functions within the applicable control network architecture. Their purpose is to allow the network arrangement to support the required connection structure while maintaining the intended communication path between control system components. Because the splitter/combiner is part of the network hardware rather than a conventional powered controller, correct module selection, fiber routing, connector condition, and system topology are important for reliable operation.

7. What should be checked if a Foxboro control network using P0926MX has a communication fault?
Troubleshooting should begin with the physical fiber connections and the condition of the installed splitter/combiner modules. Check that the modules are correctly seated in the mounting case and that the fiber connectors are fully inserted and free from contamination or damage. The fiber type and optical connections should then be verified against the network design. It is also important to inspect the associated 100Base-FX network equipment, fiber cables, SFP or optical interfaces where applicable, and network topology. If the physical layer is confirmed to be correct, the next step is to check the control network configuration and diagnostic information from the connected Foxboro equipment.

8. What precautions should be taken when replacing P0926MX or its associated modules?
Before replacement, document the existing network configuration and identify the splitter/combiner modules and fiber connections involved. If the system is operational, follow the plant’s approved shutdown, isolation, and maintenance procedures before disconnecting network hardware. Avoid contaminating or sharply bending fiber connectors and cables during maintenance. After installing the replacement components, verify that the modules are securely mounted, fiber connections are correctly restored, and the network topology matches the original configuration. A communication test and system diagnostic check should then be performed before returning the control network to normal operation.