3M™ Outdoor Fiber Distribution Terminal 8924Instructions

May 200978-8140-4694-8-A 3

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Contents

1.0 General ..........................................................................................................................................3

2.0 System Components......................................................................................................................3

3.0 System Engineering ......................................................................................................................4

4.0 FDT Mounting and Installation ....................................................................................................5

5.0 Distribution Cable Installation ......................................................................................................5

6.0 Drop Cable Installation ...............................................................................................................10

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1.0 General

1.1 The 3M™ Outdoor Fiber Distribution Terminal 8924 is a wall mount fiber distribution terminal (FDT) designed to provide cross-connect between distribution and drop cables in a Fiber-to-the-Premise (FTTP) network. Distribution cable(s) enter the left side of the terminal, are then spliced to fiber optic pigtails and plugged into couplings in the center partition of the terminal. Field or factory terminated drop cables are then plugged into the opposite side of the coupling to complete the connection. The terminal accommodates up to 24 drop cable terminations. Coupling plates are interchangeable, and permit rapid adaptation to different numbers of fiber ends, coupling types, and modes.

3M™ Outdoor Fiber Distribution Terminal 8924 features:

•Dual chamber design for added security to protect cable splices from service operations

•Alternate locking mechanisms for chamber doors to allow access only by those with authorization

•Couplings and pigtails pre-loaded in the factory to save installation time and labor

•Easy access, quality grounding system for quality connections that virtually eliminate heat and fire hazard concerns

•Powdercoat paint finish and stainless steel hardware to withstand the harshest environments

2.0 System Components2.1 FDT and Associated Hardware:

The 3M™ Outdoor Fiber Distribution Terminal 8924 contains:

a) Assembled housing

b) Pre-assembled components

c) Mounting hardware

d) Cable management kit

Figure A

2.2 Pre-Assembled Components Inside FDT:

a) 3M™ Splice Tray 2524-SR – Up to 3 ea.

b) Fiber Optic Pigtails – Up to 24 ea.

Figure B

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2.3 Cable Management Kit:

a) Fiber routing clips - 10 ea.

b) Cable ties – 16 ea.

c) 3M™ Fiber Optic Splice Sleeves 2170 or 2171 – Up to 24 ea.

d) Log labels – 3 ea.

e) Keys – 2 ea.

Figure C

2.4 Mounting Hardware:

a) Brackets - 4 ea.

b) Screws - 4 ea.

c) Nuts - 4 ea.

d) Washers - 4 ea.

Figure D

2.5 Optional Accessories (sold separately):

3M™ Scotchlok™ Shield Bond Connector 4460-D

3M™ Grounding Braid 25T3M™ Cable Cleaning Kit 44143M™ Mounting Brackets 8900 Series

3.0 System Engineering

3.1 Intended Location: The 3M™ Outdoor Fiber Distribution Terminal 8924 was originally designed for use in Fiber-to-the-Premise (FTTP) networks. Installation was intended for outdoor Multiple Dwelling Unit (MDU) applications, however, the wall-mount terminal can also be used indoors.

3.2 Purpose: The 8924 FDT secures connections between distribution and drop cables run to individual living or working units. In other network applications, drop cables are run to other fiber optic enclosures or equipment.

3.3 Access Requirements: The 3M™ Outdoor Fiber Distribution Terminal 8924 has an outer door that can be opened with the use of a 7/16” nut driver, or “can wrench”. The inner door, which secures the incoming, distribution cable and spliced to pigtails in the terminal, can only be opened by using the included key.

3.4 Fiber Capacities and Radii: The 3M™ Outdoor Fiber Distribution Terminal 8924 can hold up to four single 3M™ Coupling Plates 8400 Series. These can be configured to provide as many as 24 fiber ports per terminal. The housing allows installation and use with all fiber bends maintained at a radius of 1.5" (38 mm) or more.

3.5 System Mounting: The 3M™ Outdoor Fiber Distribution Terminal 8924 can be mounted to plywood or other such mounting surface through the use of brass inserts (located in the back of the terminal) or to a wall or rail using mounting brackets (sold separately).

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4.0 Mounting and Installation4.1 The 3M™ Outdoor Fiber Distribution Terminal

8924 can be mounted to plywood or other such mounting surface by securing 1/4-20 UNC screws (not included) in brass inserts located in the back of the terminal.

4.2 Optionally, 3M™ Mounting Brackets 8900 Series (sold separately) can be used for mounting the 8924 FDT to a wall or rail. The brackets can be mounted in several different configurations, depending on customer requirements. The brackets may be mounted facing either up or out.

Mount the brackets to the back of the FDT by placing the bracket against the terminal, then washer, lock washer and bolt through the bracket.

Mount the FDT to a wall or rail.

5.0 Distribution Cable Installation

Securing Cable:

5.1 Open outer door with can wrench.

This door can be removed by simply lifting up on the door for easy access to the interior.

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5.2 Open inner door with included key.

This door can be removed by simply lifting up on the door for easy access to the interior.

5.3 Strip and prepare the distribution cable end per company practice.

5.4 Trim the CSM so that 3 1/2” (9 cm) is exposed for securing in the screw lug bar.

5.5 If the cable is to be grounded, a 3M™ Scotchlok™ Shield Bond Connector 4460-D should be installed now.

5.6 Insert the cable strength member into the screw lug bar and tighten securely.

5.7 If the cable is to be grounded attach proper grounding material, per company practice.

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5.8 Cables may also be cable tied in place in the base of the FDT for added pull-out strength.

a) For cables with no CSM, they should be secured by cable ties or hose clamps to the base of the FDT.

b) The FDT can accommodate approximately 6-8 feet of fiber buffer storage of the distribution cable.

5.9 Remove splice tray by loosening thumb screws and set aside.

5.10 Unwrap pigtails and route outside of FDT to allow placement of distribution cable.

5.11 Distribution cables enter FDT from the bottom, left side of the terminal.

5.12 For cables with a central strength member (CSM), they may be locked in place by putting the CSM into the provided screw lug bar.

5.13 Open the cable management kit that contains the cable ties, keys, adhesive backed fiber routing clips, fusion splice sleeves and labels.

a) Place adhesive backed fiber routing clips inside the 3M™ Outdoor Fiber Distribution Terminal 8924 in the proposed location of the incoming fiber. Ensure that their location does not incur any loss due to bend radii.

b) Route the incoming cable through the fiber routing clips at least one full wrap around the base of the FDT.

5.14 Reinstall the splice tray into the FDT

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5.15 Route fiber pigtails into the splice tray.

a) Pigtails from upper coupling plates should route around the top of the tray support and enter the tray in the upper left corner. Secure with a cable tie.

b) Pigtails from lower coupling plates should route around the bottom of the tray support and enter the tray in the lower left corner. Secure with a cable tie.

5.16 Route buffer tubes into the splice tray and mark the location of buffer removal. Remove buffer with company approved tool. If grease is present, remove grease with company approved material, such as 3M™ Cable Cleaning Kit 4414, or equivalent.

Note: Carefully follow health, safety and environmental instructions as given on Material Safety Data Sheet or container label for cable cleaner solvent being used.

5.17 Place buffer tube into splice tray and secure with cable tie/ties.

Fiber Splicing:

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5.18 Route outgoing pigtail fibers into splice tray until they are even with one of the splice sleeve holder locations. Trim those fibers to be spliced at that location even with the center of the sleeve holder.

5.19 Route incoming fibers into splice tray until they are even with one of the splice sleeve holder locations. Trim those fibers to be spliced at that location even with the center of the sleeve holder.

5.20 Slide a fusion protection sleeve over each fiber to be spliced. Splice all fibers per company practice. Place fusion protection sleeves into the sleeve holders.

Danger: Fiber ends and unmated connectors may emit invisible laser or LED radiation. Avoid direct eye exposure to the beam. Do not inspect with magnifying instruments. Protective dust caps should be kept on all unmated couplings and connectors.

5.21 When all splicing is complete, ensure all fibers are well routed and secure within the tray. Install log label into splice tray. Place cover on the splice tray.

5.22 Reinstall the inner door, place log label on the inside of the door and label per company practice. Lock door with the included key.

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6.0 Drop Cable Installation

Danger: Fiber ends and unmated connectors may emit invisible laser or LED radiation. Avoid direct eye exposure to the beam. DO NOT inspect with magnifying instruments. Protective dust caps should be kept on all unmated couplings and connectors.

6.1 Remove dust caps from any ports that will be coupled with a drop cable. Leave dust caps in the bottom of the 3M™ Outdoor Fiber Distribution Terminal 8924 for possible use at a later date.

6.2 Working on the right side of the FDT, place adhesive backed fiber routing clips wherever needed, per company practice.

6.3 Drop cables enter the FDT from the bottom of the terminal.

6.4 Route and install the drop cable connector into the appropriate coupling. Dress the drop cable to minimize tight bending stress or tension, using the fiber routing clips.

6.5 Once all drop cables have been installed, replace the outer door back on the hinges. Place a log label on the inside door and label per company practice. Close door and tighten with can wrench.

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Communication Markets Division3M Telecommunications6801 River Place Blvd.Austin, TX 78726-90001-800-426-8688www.3MTelecommunications.com

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