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Various contamination conditions of connectors

These images describe various contamination conditions.

Illustration

Description

Figure 14: A Clean Connector

Figure 14 shows a clean single mode ceramic endface at 200x magnification.

Note: Sometimes the core is not illuminated.

Figure 15: Clean Multifiber Connector with Acceptable Shadowing

Figure 15 shows a clean multimode MT connector. Notice that there is a small amount of acceptable shadowing along the edge of the cladding.

Note: There is more than one fiber visible at 200x magnification and sometimes the core is not illuminated.

Figure 16: Connector with Dust

Figure 16 shows a connector with dust particles spread across the surface of the endface that needs cleaning.

Figure 17: Connector with Liquid Contamination

Figure 17 shows a connector with liquid contamination that needs cleaning.

Figure 18: Connector with Liquid Contamination

Figure 18 shows a connector with liquid contamination that needs cleaning.

Figure 19: Connector with Alcohol Residue Contamination

Figure 19 shows a connector with alcohol residue that needs cleaning.

Figure 20: Connector with Liquid Contamination

Figure 20 shows a connector with small droplets of liquid contamination that needs cleaning.

Figure 21: Connector with Dry Residue

Figure 21 shows a connector with a dry residue that needs cleaning.

Figure 22: Connector with Oil Residue

Figure 22 shows a connector with an oil residue that needs cleaning.

Figure 23: Connector with Scratches

Figure 23 shows a connector with scratches. These scratches are not detrimental to the endface and does not clean off. But, deep scratches that appear to cross the fiber-optic core can cause signal loss.

Figure 24: Connector with Chipped Cladding and Excessive Epoxy

Figure 24 shows a connector with damage to the cladding. Cleaning cannot remove damaged cladding. A small amount of epoxy around the cladding is allowable, but this shows excessive epoxy around the cladding that does not clean off. This connector must be replaced.

Figure 25: Damaged Connector

Figure 25 shows a 1.25 mm ferrule that has been over chamfered. The connector must be replaced.

Related Tutorials

Project of cleaning the fiber patch cord

Project of cleaning the fiber patch cord1.  The end face:  use alcohol and absorbent cotton to clean Benefits and significance of cleaning the  fiber patch cord:1.  Extend the service life of the fiber patch cord2.  Reduce the occurrence of network failure3.  Improve network performance4.  Reduce maintenance and replacement cost Mistake and taboos of cleaning the fiber patch cord:1.  Soak the fiber patch cord in alcohol directly.2.  Use ordinary paper towels to replace the absorbent cotton.

Notes of using Fiber Optic Patch Cords

1.  Before use the fiber patch cord, we should use the alcohol and absorbent cotton to clean the optical fiber ferrule and its’ end face. 2.  If the connector is dirty, we should clean it by using the alcohol and absorbent cotton, or it will affect the communication quality.3.  The fiber optical modules at two ends of the fiber patch cord must support the same wavelength, in order to ensure the accuracy of data transmission.4.  Don’t excessively bend and circle the fiber, which will leads to an increased decay in the transmission process of the light. The bend radius must be less than 30mm.5.  After using fiber patch cord, we must use protective sleeve to

FIBER PATCH CORD PRODUCTION TOOLS & PROCEDURES

Step 1: Cutting Fiber CableTools Requirement: Automatic cutting machine/a Kevlar cutterUse Automatic cutting machine or the Kevlar cutter to cut the fiber cable according to the required length of patch cord, then a simple correction.Step 2: Assemble partsAssemble various parts to the fiber for the convenience of the subsequent steps.The sequence to assembling parts is rubber sheath, heat shrinkable tube, pipe and a spring. The direction should pay attention to whether correct.Step 3: Assign the glueTools Requirement: 353nd glueEvenly assign the Part A and the Part B of the 353nd glue according to the ratio of 10:1 through the auxiliary tool, and minimize bubble.Step 4: FerruleTools
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