3M
™
Distribution Box (DDB)
Merged Copper and Fiber Pole/Post Mount
Enclosure Installation
Instructions
November 2015
78-0015-2736-1-A
2 78-0015-2736-1-ANovember 2015
Contents
1.0 General
2.0 Enclosure installation
3.0 Enclosure external ground
4.0 Fiber cable installation
5.0 Copper cable installation
6.0 Terminating wires on back of
3M
™
Quick Connect System (QCS)
2810B Block
7.0 Terminating DSLAM copper cable onto
the back of the 10-pair block
1.0 General
1.1 These instructions provide the information
necessary for the installation of the 3M
™
Distribution Box DDB. The enclosure is
equipped with a 100 pair of the 3M
™
Quick
Connect System (QCS) 2810 blocks plus a
12-fiber SC/APC termination/connection
frame. The enclosure can be direct mounted
on a pole or post and does not require a
mounting frame.
The 4 ¼" mounting hole spacing requires a
minimum of a 6" wide flat post or a typical
telephone pole.
Mounting the closure and accessories are
covered in these instructions.
1.2 Tools required for installation:
a. Standard hand tools
b. Drill for pole or post mounting
c. Screws and flat washers
1.3 Image and cable count example
9 ½" W x 25" H x 5" D
2.0 Closure installation
2.1 Mounting holes
• Verify the mounting surface can accept
a 4 ¼" width mounting hole spacing.
• Open the enclosure.
• Locate the upper mounting holes
approximately 1" below the top of
the closure.
• Temporarily support closure to
mounting surface.
• Center on mounting surface.
• When plumb, mark the top two mounting
hole locations.
• Secure to mounting surface with
screws that include flat washers on
top and bottom.
Upper mounting hole locations
Lower mounting hole and cable
anchoring/grounding detail
378-0015-2736-1-A November 2015
3.0 Enclosure external ground
3.1 Select bottom port for external
ground entrance.
3.2 Punch through plastic port plug using
screwdriver or equivalent.
3.3 Route #6 external ground wire from source
into port to ground wire lug.
3.4 Secure ground wire to bond bar per
company practice.
4.0 Fiber cable installation
4.1 Prepare incoming fiber feeder cable by
removing 90" (2286 mm) of outer sheath.
4.2 Punch through plastic port plug using
screwdriver or equivalent and insert prepped
cable with exposed buffer(s) through plastic
port plug opening.
Note: If using shielded ber cable, install supplied
3M
™
Scotchlok
™
Shield Bond Connector 4460D
between hose clamp and CSM retainer per your
company practice. Use grounding location next
to cable anchor bracket to secure ground wire
per your company practice. Secure cable to
anchor bracket using supplied hose clamp
(sheath) and CSM retainer.
4.3 Loop buffer tube(s) one time around fiber tray
assembly using retaining clips to manage.
4.4 Remove 30" (762 mm) of protective buffer
tube to expose 250 µm fiber(s).
4.5 Install buffer tube onto tray as shown, locking
tray clip and installing cable tie to anchor
buffer tube in place.
4.6 Install connectorized pigtails into adapters in
orientation as shown (number and type may
vary, 4 SC/APC connectors shown).
4 78-0015-2736-1-ANovember 2015
4.7 Install 900 µm pigtails onto tray as shown,
opposite the incoming side of the 250 µm
fibers, using locking tray clip to secure
the fibers.
4.8 Group fibers together using wire ties or loosely
secured cable ties to manage bundle.
DO NOT OVER TIGHTEN.
4.9 Complete splices per company practice and
store slack in appropriate area of tray.
4.10 Prepare DSLAM fiber cable grommet by
trimming to the correct size opening for the
sheath cable.
4.11 If connectors are preterminated on the
DSLAM cable, insert them carefully through
the grommet opening one at a time.
4.12 If using shielded cable, install supplied
3M
™
Scotchlok
™
Shield Bond Connector
4460D located between the hose clamp and
CSM retainer per company practice.
4.13 Use grounding location next to cable anchor
bracket to secure ground wire per company
practice. If desired, use thread cutting 8-32
screw to secure ground wire in alternate
location. Screw not supplied.
4.14 Secure cable to anchor bracket using
supplied hose clamp (sheath) and Central
Strength Member (CSM) retainer, if a
CSM is present.
4.15 Removal of the bottom the 3M
™
Quick
Connect System (QCS) 2814 block may be
necessary to access the CSM retainer bolt. If
removed, reinstall after securing the CSM.
4.16 Store slack fiber(s) (up to 3.0 mm jacket)
of DSLAM cable, looping around fiber tray
assembly using retaining clips as necessary.
4.17 Plug connectors into corresponding adapter
ports above tray to complete the connection.
5.0 Copper cable installation
5.1 Remove the threaded ring and components
from the two large entry ports.
5.2 Recycle solid metal plates.
5.3 Slide threaded ring, a sealing washer, rubber
grommet, and the other sealing washer (in that
order) onto cable to be prepped.
5.4 Prepare incoming cable by removing sheath to
expose conductors.
5.5 If using shielded cable, install 3M Shield Bond
4460 connector per company practice.
5.6 Scuff perimeter of cable and wrap with
Scotch
®
Linerless Rubber Splicing Tape 130C
in scuffed location to build up diameter for a
slight interference fit of rubber grommet.
5.7 Slide port entry components into place on the
taped area.
5.8 Tighten threaded ring onto port entry collet to
compress rubber grommet onto cable.
578-0015-2736-1-A November 2015
5.9 Use grounding location next to cable
anchor bracket to secure ground wire per
company practice.
6.0 Terminating wires on back of
3M
™
Quick Connect System
(QCS) 2810B Block
6.1 Locate metal bracket tab, insert flat
screwdriver and push bracket tab outward.
6.2 Raise block slightly, once released from the
bracket, and release tab on opposite side.
6.3 Lift off block once both sides are released
from bracket.
6.4 Roll block over and temporarily seat face down
on the metal bracket tabs.
6.5 Lift corresponding orange caps, insert house
wires and snap cap closed to terminate.
Note: Wires will enter cap from top of block when
terminating on back.
6.6 Terminate wires with regard to tip and ring
when rolled back to reinstall.
6.7 Roll block back over and reseat on metal
bracket tabs - stencil tab side up.
6.8 Apply downward pressure until block ‘snaps’
in place on metal bracket tab.
7.0 Terminating DSLAM copper
cable onto the back of the
10-pair block
7.1 Remove blocks and set aside.
7.2 Rotate one block and reinsert on frame.
7.3 Separate and route each 10 pair to the
corresponding block.
7.4 Route each cable pair over the respective pair
cap and place in cap slots temporarily.
7.5 Keep Ring right and Tip left as block will roll
over in place.
7.6 Cut conductors to length and insert in
orange cap.
Communication Markets Division
6801 River Place Blvd.
Austin, TX 78726-9000
Phone 1-800-426-8688
Web www.3M.com/Telecom
Please recycle. Printed in USA © 3M 2015.
All rights reserved. 78-0015-2736-1-A
3M, Scotch, and Scotchlok are trademarks of 3M Company.
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accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended
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authorized ocer of 3M.
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This product will be free from defects in material and manufacture for a period of one (1) year from the time of purchase. 3M MAKES NO OTHER
WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
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7.7 Snap cap into place until audible ‘click’ to
terminate cable conductor into the block.
7.8 Complete all cable conductors on all blocks.
7.9 Snap all blocks back into their respective pair
count on the 100-pair frame.
7.10 Place the copper cable from the left cable port
in the enclosure to the existing cable splice.
7.11 Remove sheath, mark groups and bond per
company practice.
7.12 Route conductors up the left side of the frame.
7.13 Route the respective 10-pairs to their
appropriate 10-pair block.
7.14 Terminate the 100-pair cable onto the front of
the 10-pair blocks.
This architecture allows for the existing cable
pair to be routed into the DSLAM and out of
the DSLAM in their respective cable counts.
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