6901 3M, 6901 Datasheet - Page 2

• Manufacturer Part Number: 6901
• Description: CONN F/OPTIC CRIMPLOK ST MM
• Manufacturer: 3M
• Type: STr

Specifications of 6901

• Connector Style: ST
• Simplex/duplex: Simplex
• Mode: Multimode
• Mounting Type: Free Hanging (In-Line)
• Angle: Straight
• Brand/series: Crimplok™
• Color: Black
• Connector Type: ST
• Flammability Rating: UL 94V-0
• Material, Housing: Thermoplastic
• Primary Type: Fiber Optic
• Special Features: Simplex
• Termination: Crimplok
• Lead Free Status / RoHS Status: Vendor undefined / Vendor undefined
• Features: -
• Color: -
• Connector Type: -
• Fastening Type: -
• Ferrule Material: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 5400792813; 54007928133; 6901 CRIMPLOK CONN; 80-6108-4523-4; 80610845234; MF6901

1.0 Product Description & Requirements
The 3M™ ST* MM Crimplok™ Connector is designed to provide the customer with an easily installed, low-
cost, high performance, epoxy-free, multimode connector for use in indoor applications, such as local area
networks. The main advantage of this connector is a lower installed cost, due to time saved at installation and 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 (and Tolerances) encountered with different
manufacturers. 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 materials/properties involved, which
provide inadequate grip onto the glass fiber.
The 3M ST* MM Crimplok Connector grips the glass fiber with a small Fiberlok™-style element that is
integrated inside the backbone of the ST* connector version. Activation of the element is achieved by depressing
an element cap located in the ST* backbone. The 6955-T Crimplok Activation Tool, which is part of the new
6955 kit, activates the element cap and secures the fiber. The Activation 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 ST* 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 ST* 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 ST* Crimplok Connectors tested in this report had a fiber protrusion range of 98-119 µm after cleaving, and
the final fiber protrusions after polishing were:
Mean .................................. 25.7 (µm)
Sigma ................................ 4.5
Minimum .......................... 15.2
Maximum .......................... 31.2
Environmental Group 0
Cold
Temperature Life
Humidity
Mechanical Group 1
Impact
Flex
Twist
Cable Retention
2
Mechanical Group 2
Vibration
Connector Durability
Connector Intermatability