6900 3M, 6900 Datasheet - Page 2

• Manufacturer Part Number: 6900
• Description: CONN F/OPTIC CRIMPLOK SC MM
• Manufacturer: 3M

Specifications of 6900

• Connector Style: SC
• Simplex/duplex: Simplex
• Mode: Multimode
• Mounting Type: Free Hanging (In-Line)
• Product: SC Connectors
• Connector Type: SC
• Fiber Type: Multimode
• Fiber Diameter: 125um
• Connector Body Material: Thermoplastic
• Pack Quantity: 4
• Body Material: Zirconia Ceramic
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Color: -
• Connector Type: -
• Fastening Type: -
• Ferrule Material: -
• Other names: 5400792815; 54007928157; 6900 CRIMPLOK CONN; 80-6108-4525-9; 80610845259; MF6900

1.0 Product Description & Requirements
The 3M™ SC Crimplok™ Connector is designed to provide the customer with an easily installed, high
performance, low-cost, epoxy-free, pull-proof multimode connector for use in indoor applications, such as local
area networks. The main advantage of this connector is it’s ability to give the customer a lower installed cost due
to time saved at installation with a minimal initial investment in tooling.
Some mechanical connectors grip the fiber buffer coating which results in poor performance characteristics in
initial insertion loss measurements, as well as during temperature cycling. Reliability of this method is also
questionable due to differences in buffer coating materials encountered with different manufacturers and the
tolerances involved. Other mechanical connectors grip the glass portion of the fiber with soft compliant
materials, such as plastics, which have demonstrated poor performance characteristics at initial insertion loss and
during temperature cycle testing. Reliability is again questionable due to the nature of the materials involved,
which provide the grip onto the glass fiber.
The 3M SC Crimplok Connector grips the glass fiber with a small Fiberlok™-style element that is integrated
inside the backbone of the SC connector version. Activation of the element is achieved by depressing an element
cap located in the SC backbone. The 6955-T Crimplok Activation Tool, which is part of the new 6955 kit,
activates the element cap and secures the fiber. The tool also sets the amount of fiber protrusion within strict
tolerance limits for faster polishing times. The connector is removed, and a simple one step polish is performed
on a fine grit lapping film that requires less than 30 seconds to complete. The connector is then ready for use.
2.0 Test Program
The purpose of the test program is to assess the long-term performance of the 3M SC Crimplok fiber optic
connector product. A series of optical, environmental and mechanical tests were conducted, which expose them
to conditions more severe than those anticipated in actual use. All tests are performed in accordance with TIA-
568A. Field mount Crimplok connectors in the evaluation were obtained directly from 3M factory stock,
assembled on cable, and spliced into the test system. A list of tests performed is presented below.
New Product
New Product
Sample Preparation:
The SC Crimplok Connectors were cleaved using the Model 6955-T Crimplok Activation Tool, and were
processed according to the Crimplok Instruction Manual P/N 78-8073-7660-9, Issue 2, July 1997. The fiber
protrusion specification after cleaving is 105 ± 25 µm (using the 6955-T activation tool), and the final fiber
protrusion specification after polishing is 10-50 µm (typical values range from 15-40 µm).
The SC Crimplok Connectors tested in this report had a fiber protrusion range of 95-122 µm after cleaving, and
the final fiber protrusions after polishing were:
Mean .................................. 28.6 (µm)
Sigma ................................ 4.6
Minimum .......................... 22.0
Maximum .......................... 40.0
Environmental Group 0
Cold
Temperature Life
Humidity
Mechanical Group 1
Impact
Flex
Twist
Cable Retention
2
Mechanical Group 2
Vibration
Connector Durability
Connector Intermatability