The T-601C fusion splicer can precisely splice multimode fibers by preparing, cleaving, aligning, and splicing the fibers using its core alignment technology.

Step 1: Prepare the Fiber

• Strip the fiber coating using a fiber stripper to expose the bare glass core, typically 250 µm for multimode fibers.
• Clean the fiber with isopropyl alcohol to remove any debris or coating residue.
• Inspect the fiber under a microscope to ensure no scratches or cracks are present, as these can increase splice loss.

Step 2: Cleave the Fiber

• Use a high-precision fiber cleaver compatible with multimode fibers.
• Ensure the cleave angle is within the recommended tolerance (usually ≤ 1°) to minimize splice loss.
• Proper cleaving is critical for the T-601C's core alignment system to achieve low-loss splicing.

Step 3: Set Up the T-601C

• Power on the splicer and select the multimode fiber mode from the menu. The T-601C supports both single-mode and multimode fibers, and selecting the correct mode optimizes alignment and arc parameters.
• Check the electrodes and clean or replace them if necessary to ensure consistent splicing performance.
• Adjust splicing parameters if needed, such as arc power and duration, which the T-601C can automatically optimize for multimode fibers.

Step 4: Align and Splice

• Insert the cleaved fibers into the V-grooves of the splicer.
• The T-601C uses core alignment technology to automatically align the fiber cores for minimal splice loss.
• Start the splicing process; the splicer will display the alignment and fusion progress on its dual LCD screens.
• After splicing, the T-601C will perform an automatic splice loss estimation.

Step 5: Protect the Splice

• Slide a heat-shrink sleeve over the splice and place it in the splicer's heater.
• Activate the automatic heating cycle to secure the splice and protect it from mechanical stress.

Step 6: Inspect and Test

• Inspect the splice using the T-601C's built-in microscope or an external inspection scope.
• Measure optical loss with an OTDR or power meter to ensure the splice meets network specifications. By following these steps, the T-601C ensures fast, precise, and low-loss splicing for multimode optical cables, suitable for FTTH, data centers, and other fiber optic network installations .