How to install a rotating frame for mobile communication optical cables

A rotating frame for optical cables requires a secure mechanical frame, proper rotary cable carriers, and fiber optic rotary joints to maintain continuous signal transmission.

Step 1: Select and Prepare the Installation Site

Choose a stable, vibration-free location for the rotating frame. Ensure sufficient clearance for rotation and cable routing. Drill and secure the frame to the floor or base using expansion bolts, and connect the top of the frame to any supporting structures with angle connectors or aluminum parts if required . If multiple frames are combined, bolt them together for stability.

Step 2: Choose the Appropriate Rotary Cable Carrier

For rotating optical cables, use a cable carrier designed for rotary motion. Options include:

• Standard cable carriers: Bend in one direction, suitable for large spaces, moving angles up to 450° .
• Twisterchain: Handles circular/spiral motion up to 540°, ideal for space-restricted applications .
• Twisterband: Compact, can rotate up to 3,000°, stays close to the axis, suitable for high-speed rotation in minimal space .
• Reverse Bending Radius (RBR) carriers: Travel in two directions, shortest cable length, moving angles up to 540°, and increased safety . Ensure the carrier accommodates the number of fibers and provides strain relief at one or both ends.

Step 3: Install Fiber Optic Rotary Joints (FORJ)

A fiber optic rotary joint allows continuous optical signal transmission while the frame rotates. Install the FORJ between the stationary and rotating parts:

• Mount the stator on the stationary frame and the rotor on the rotating frame .
• Align the optical fibers with the internal lenses or mirrors to maintain the optical path.
• Secure the joint to prevent misalignment during rotation.

Step 4: Route and Protect Optical Cables

• Strip the optical cables carefully and use protection connectors to prevent fiber damage .
• Route fibers through the rotary cable carrier, ensuring no sharp bends or excessive tension.
• Use bare fiber protection tubes and guide fibers to the splicing or distribution panels.
• Fusion splice factory-made pigtails to the installed fibers and terminate connectors (SC, LC, or APC) as required .

Step 5: Test and Label Connections

• Inspect all connectors with a microscope to ensure proper polishing and alignment .
• Test end-to-end optical loss and document results.
• Label all ports and fibers for future maintenance and troubleshooting.

Step 6: Maintenance Considerations

• Periodically check the rotary cable carrier for wear and ensure smooth rotation.
• Inspect the fiber optic rotary joint for alignment and signal integrity.
• Replace or adjust cables as needed using modular crossbars if the carrier allows easy access . By following these steps, you can install a rotating frame for mobile communication optical cables that ensures reliable signal transmission, mechanical stability, and long-term durability.