Connector and Tool Diagram | 3M 250/900 specs

1.0Connector and Tool Diagram

1.1The diagrams below show the parts of the 3M™ No

Polish ST Connector (singlemode pictured) and the 3M™ No Polish ST Connector Assembly Tool 8835- AT. Please review these drawings to understand the instructions in the following pages.

Carefully follow safety, health and environmental information given on the product label or the Material Safety Data Sheet (MSDS) for the no polish connec- tor. Emergency phone: 1-800-364-3577 or (651) 737- 6501 (24 hours).

2.03M™ No Polish ST Connector SM and MM 250/900 µm, Termination Instructions

Note: To determine if a fiber is tight buffer or not, perform this test. Using a sample of the fiber and the fiber stripper, cut the buffer between 5 and 50 mm (.2 to 2 inches) from the end. Withdraw the stripper from the fiber. (Do not remove the cut buffer segment using the stripper.) Attempt to remove the cut segment of buffer from the fiber using only finger pressure. If the fiber is loose tube or semi-tight buffered, the cut seg- ment will come off very easily. If it is tight buffered,

the cut segment will be noticeably difficult to remove without the aid of a tool.

Note: When using loose tube or semi-tight buffered fiber, and after stripping and cleaving the fiber, it is important that the 250 µm acrylate coating on the bare glass not protrude more than 1 mm (.04 inches) beyond where the 900 µm buffer is stripped away. One way to help ensure this is to use the clamp on the fiber holder during the stripping process. Here’s how. Place the fiber holder on the fiber facing backwards (clamp closet to cut end) and 20 cm (8 inches) from the end of the fiber. Secure the fiber into the SEMI-TIGHT BUFFER groove of the clamp. Proceed to strip the fi- ber as though it were tight buffered. Remove the fiber holder and proceed with the preparation and termina- tion processes.

Another way to help ensure this is to use the clamp on a second fiber holder during the entire prepara- tion and termination processes. Place the second fiber holder on the fiber facing backwards and 20 cm (8 inches) from the end of the fiber. Secure the fiber into the SEMI-TIGHT BUFFER groove of the clamp. Proceed to strip, clean, and cleave the fiber as though it were tight buffered, and terminate the connector onto the fiber. Remove the second fiber holder from the fiber after the entire process is complete.

2.1Prior to each termination, clean all tools, including the fiber holder, with a lint-free cloth and reagent grade isopropyl alcohol.

2.2Remove the dust cap from the front of the connector. Raise the actuator button on the assembly tool. Pivot the receptacle upward. Then insert the connector into the receptacle by aligning the key on the connector with the keyway in the receptacle and pushing it in until it stops. Move the pivot receptacle back to the horizontal position.

3	78-0013-6978-0-B

250/900 specifications

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