Allen Bradley 1786-FS20 ControlNet Fiber Optic Cable Assemblies

Applications

The Allen Bradley 1786-FS20 ControlNet Fiber Optic Cable Assembly is designed for fiber-optic communication connections in industrial ControlNet networks. With a cable length of 20 meters, it provides flexibility when connecting network components installed at different locations within a facility.

Typical applications include:

• Industrial ControlNet Networks: Supports fiber-optic connectivity in ControlNet communication systems.

• Distributed Automation Systems: Connects compatible network equipment across separated control areas.

• Factory Automation: Helps establish communication links between automation equipment in manufacturing facilities.

• Electrical Noise-Prone Environments: Fiber-optic transmission can help reduce susceptibility to electromagnetic interference compared with conventional copper communication cabling.

• Industrial Equipment Integration: Supports communication infrastructure for compatible ControlNet devices and network segments.

• Control System Expansion: Provides an additional cable-length option when extending or reorganizing an existing network.

Advantages

1. Flexible Installation Distance

The 20-meter cable length supports installations where network components are not positioned close together, offering greater routing flexibility than shorter cable assemblies.

2. Fiber-Optic Communication

Fiber-optic cabling is suitable for applications where electrical isolation and reduced sensitivity to electromagnetic interference are important considerations.

3. Industrial Network Integration

The assembly is intended for use within compatible ControlNet fiber-optic communication arrangements, helping integrate equipment across an industrial control network.

4. Support for Distributed Equipment

It can be considered for network layouts in which controllers, communication interfaces, or other compatible devices are installed in separate cabinets or production areas.

5. Practical Cable Routing

A 20-meter length can help installers route the communication connection through cable trays, equipment enclosures, and designated pathways without relying on a very short connection.

6. Maintenance and Replacement

A replacement cable assembly can help restore a fiber-optic communication connection when the original cable is damaged or when a network layout requires a compatible replacement.

Technical FAQs

Q1: What is the primary function of the Allen Bradley 1786-FS20?

It provides a fiber-optic cable connection for compatible ControlNet network applications. Its purpose is to support communication between equipment through an appropriate fiber-optic interface.

Q2: Which communication network is this cable assembly associated with?

The 1786-FS20 is associated with Allen Bradley ControlNet systems. Compatibility should be confirmed against the installed network hardware and its supported fiber-optic interface.

Q3: What is the cable length of the 1786-FS20?

The specified cable length is 20 meters, equivalent to approximately 65.62 feet.

Q4: Why use fiber-optic cabling in an industrial control network?

Fiber-optic cabling can provide electrical isolation and is less susceptible to electromagnetic interference than copper communication cabling. These characteristics can be useful around motors, drives, and other electrically noisy equipment.

Q5: Can the 1786-FS20 be connected directly to any ControlNet device?

Not necessarily. The connected equipment must support the appropriate fiber-optic connection method. Verify the required interface, connector type, and network configuration before installation.

Q6: Does the cable assembly require an external power supply?

The cable itself does not require a separate power supply to transmit optical signals. The connected active network devices require their own specified power sources.

Q7: What should be checked if communication fails after installation?

Inspect the cable routing, connector condition, connection security, and compatibility of the connected interfaces. Also check network status indicators and configuration settings on the associated equipment.

Q8: Can the fiber-optic cable be sharply bent during installation?

No. Fiber-optic cable should be routed within the manufacturer's permitted bend radius. Excessive bending, crushing, or pulling force may increase optical loss or damage the fiber.

Q9: Is the 1786-FS20 interchangeable with a copper ControlNet cable?

It should not be treated as a direct substitute for copper coaxial cabling. Fiber-optic and coaxial connections use different physical interfaces and may require different network components.

Q10: What information should be verified before ordering a replacement?

Confirm the complete model number, cable length, connector configuration, fiber type, and compatibility with the installed ControlNet equipment. These checks help avoid ordering an assembly that does not match the existing installation.