COMMSCOPE 760248303 Fiber Optic Splice Patch Closure Instruction Manual
- May 15, 2024
- CommScope
Table of Contents
- General product information
- Product image
- Warnings and cautions
- Kit content
- Closure preparation
- Feeder and branch cable preparation
- Preparing cables with small outside diameters
- Feeder/branch cable fiber routing
- Drop installation (splice version)
- Connectorized drop cable
- Field installable splitters
- TAP’s
- Organizer in housing
- Demarcation cover
- Mounting options
- Trademarks and patents
- Contact information
- Installation video and
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
Installation Instructions
OFDC-C12
General product information
The OFDC-C12 is an environmentally sealed enclosure for fiber management
system that provides the function of splicing (96 splices)/patching and
passive component integration in the outside plant network.
The closure is sealed with gel for longitudinal seal and features a wrap
around gel block for cable sealing compliant with IP68 2m waterhead. The
organizer is fully removable from the closure body and the addition of
customers is transient free.
Cable diameters:
| 2 feeder cables*: | 5.5 -17.5 mm/ 0.21 – 0.68 inch |
|---|---|
| 2 branch cables*: | 5.5 – 13 mm/ 0.21 – 0.51 inch |
| 12/24 drop cables round: | 0 – 5.5 mm / 0 – 0.21 inch |
| 12 drop cables flat: | 8 x 4.5 mm/ 0.3 x 0.17 inch |
Product image
Warnings and cautions
3.1 Fiber optic cables may be damaged if bent or curved to a radius that is
less than the recommended minimum bend radius. Always observe the recommended
bend radius limit when installing fiber optic cables and patch cords.
3.2 Exposure to laser radiation can seriously damage the retina of the eye. Do
not look into the ends of any optical fiber. Do not assume the laser power is
turned off or that the fiber is disconnected at the other end.
Kit content
4.1 Kit with bracket 1
4.2 Kit with bracket 2
Closure preparation
5.1 Open the closure by lifting the latches using a screw
driver.
5.2 Install the wedge (if
needed).
5.3 Slide the gel block on to the
organizer. Verify the correct orientation. Make sure the screw is underneath
the tray. 
5.4 Install the 2 empty adapter
panels (will be used as fiber guides in splice only applications.
Feeder and branch cable preparation
6.1 Feeder cable preparation with bracket 1
6.1.1 Bracket 1
6.1.2 Make a window cut of 2.2 m/86.6 inches, 1.1 m/43 inches
from the centerpoint. For midspan make sure the reversal point (SZ) is in the
middle.
6.1.3 Cut the strength members at 60
mm/2.36 inches from jacket end.
6.1.4 Apply a layer of foam at the jacket end. 
6.1.5 Secure the strength member with the metal lug.
6.1.6 Shaving large strength members
One can use a rip cord to make a circumferential cut.
If the outer layer is tight, cut of a part of the top
layer.
Remove outer layer.
6.1.7 Secure cable jacket with hose clamps.
For the branch cable: make sure the head of the hose clamp is facing upwards
and it’s positioned at the inside of the bracket.
6.1.8 Install the assembly to the organizer (snap fit at both
sides).
6.1.9 Install the top gel piece.
Verify orientation and dummy rods in unused ports.
Note: No tape into the gel!
6.1.10 Loop storage, attach bundle to the sides with tiewraps.
6.2 Feeder cable preparation with bracket 2
6.2.1 Bracket 2
6.2.2 Make a window cut of 2.2 m/86.6 inches. When uncut
fibers need to be stored, make sure that the twisting point (SZ) is in the
middle. 
6.2.3 Cut the strength members
at 40 mm/1.57 inches from jacket end.
6.2.4 Apply a layer of foam at the jacket end. Secure
strength members with metal plate and screw.
6.2.5 Secure cable jacket with hose clamps, position head
of hose clamp at the inside of the bracket.
6.2.6 Note that the strain relief of the branch cable does
not include the strength member. Apply foam on each side of the bracket as
shown and secure with hose clamp and tiewraps or with 2 hose
clamps.
6.2.7 Install the assembly to
the organizer (snap fit at both sides).
6.2.8 Loop storage, attach bundle to the sides with cable
ties.
Preparing cables with small outside diameters
For feeder cables from 5.5-13 mm/0.21-0.51 inch and branch cables from 5.5-8
mm/0.21-0.51 inch
7.1 Set up for bracket 1
7.1.1 Apply foam tape and 50 mm gel strip.
7.1.2 Bracket 1 installed.
7.2 Set up for bracket 2
7.2.1 Apply foam tape and 50 mm gel strip.
7.2.2 Bracket 2 installed.
Feeder/branch cable fiber routing
8.1 Loose tube cable construction
8.1.1 Select the tube(s) to be used and store the others.
Recommend routing the designated tube(s) under the looped bundle.
8.1.2 Make a mark even with
the attachment device, add 1 layer of foam tape and secure with cable
tie.
8.1.3 Guide the tubes
carefully to the splicing area of the organizer.
8.1.4 Turn the organizer to its back side. Make a mark
in the straight area. This mark indicates the point from where the tube jacket
needs to be removed. 8.1.5 Tube can be shaved when uncut fibers need to be
stored. When all fibers need to be spliced, cut to length following local
practice.
8.1.6 Uncut fibers
stored.
8.1.7 Follow the same
process for the branch cable.
8.1.8 Make splices and install splice protector and
fiber over length properly.
8.2 Microsheath cable construction
8.2.1 Prepare cable as described in section 6.1.2/6.1.3.
8.2.2 Select the bundle to be used and store the others as
shown.
8.2.3 Remove jacket in the middle
of the organizer.
8.2.4 Degrease the fibers and feed them through the
transportation tube. 
8.2.5 Push the transportation tube into position 2
cm/0.8inch from jacket end.
8.2.6 Secure the transportation tube to the side of the
organizer with cable tie.
8.2.7 Route transportation tube to top of organizer and
secure with cable tie.
8.2.8 Continue with fiber management as described above (loose tube cable
construction).
Drop installation (splice version)
9.1 Installing 1 cable per drop port (0-5.5 mm/0-0.21 inch)
9.1.1 Remove the cable jacket over a length of 1 m/39 inches. Degrease the
jacket and install a wrap of foam at 50 mm/2 inches from the jacket end.
Note: For flat cables install 2 wraps of foam. Only 1 flat cable per port
is possible!
9.1.2 Secure the cable with 2 cable ties to the
external metal bracket. Route the fiber through the adapter panel to the
splicing zone.
Note: Transition from 900µ to 250µ always in a straight line.
9.1.3 Make fusion splice and store splice protector and fiber over length
properly.
9.2 Installing 2 cables per drop port (0-5.5 mm/0-0.21 inch)
9.2.1 Cut 20 mm/0.78 inch of gel strip. Place the gel
strip on top of the first cable.
9.2.2 Prepare the 2nd drop as described 9.1.1.
9.2.3 Cut 1 of the 2 black cable ties from the first cable,
put 2nd drop cable on top of the gel strip and push down.
Gel conforms to a U shape around cable.
9.2.4 Secure both cables together: internal with 1 white
cable tie, external with 2 black cable ties to the metal bracket.
Route fiber through the adapter panel to the splicing zone.
9.2.5 IMPORTANT: In order to
avoid damaging the cable jacket when 2 cables (diameter ≥ 3 mm / 0.12 inch)
are installed in a single drop port, the lip(s) in the cover need to be
removed.
To do this, break off the plastic lip by means of a pair of pliers, and be
sure to avoid sharp edges (recommended to use sandpaper).
Connectorized drop cable
10.1 Pre-connectorized drops
10.1.1 Install the pre-connectorized drop cable as shown,
determine correct spot where to place 1 wrap of foam and secure with 2 black
cable ties to the external bracket.
Note: For LC adapters and 2 cables per port see section 9.2 (2 cables per
drop port)
10.2 Field installable drops (FIC)
10.2.1 Prepare cable per standard practice (foam) and
secure the cable to the bracket with 2 black cable ties.
Note: Recommended 900µ fiber length is approximately 300 mm/11.8 inches.
Install connector and store 900µ fiber over length as shown.
Field installable splitters
11.1 In order to
install splitters, 1 or more splice holders need to be removed. To remove the
splice holders on the 2nd organizer tray, gently lift the plastic lip and push
out the splice holder from the other side. 
11.2 Take a transportation tube and secure it at
the side of the 2nd organizer tray with 2 cable ties. Route the tube over the
top and guide as shown (see dotted line).
11.3 Install the splitter. Route all fibers
through the transportation tube to tray 1 (using a figure of 8 for the feeder
fiber to maintain the correct bend radius).
11.4 Put clear cover back. Splice feeder fiber,
store splice protector and fiber over length properly.
11.5 Output fibers can
now be spliced to the drops.
TAP’s
12.1 TAP pre-installed in tray 2.
All fibers are routed to tray 1.
Input fiber labled number 1.
Thru fiber labled number 2.
12.2 In order to route the midspan
fibers underneath the transportation tube the adapter panel can be taken out
easily.
12.3 Make splices and store properly.
Organizer in housing
13.1 Install the tether as
shown.
13.2 Slide organizer under the 2
top screws. Tighten 2 top and 1 bottom screw.
13.3 Place dummy rods in all unused ports.
13.4 Store wedge next to the organizer.
13.5 Close all latches using a screw driver.
Demarcation cover
14.1 The bottom half of the cover can be lifted to access the
patch panel. This part can be locked in open position as shown.
Mounting options
Wall mounting: use mounting tabs. This terminal is not UL-
listed.
Strand mounting: OFDC-C12
BRKSTRAND (to be ordered separately).
Pole mounting: use mounting tabs in combination with
plastic or metal hose clamps.
Trademarks and patents
All trademarks identified by ® or ™ are registered 0trademarks or trademarks,
respectively, of CommScope, Inc. This document is for planning purposes only
and is not intended to modify or supplement any specifications or warranties
relating to CommScope products or services.
CommScope is committed to the highest standards of business integrity and
environmental sustainability, with a number of CommScope’s facilities across
the globe certified in accordance with international standards, including ISO
9001, TL 9000, and ISO 14001.
Further information regarding CommScope’s commitment can be found at
www.commscope.com/About-Us/Corporate-Responsibilityand-
Sustainability.
This product may be covered by one or more U.S. patents or their foreign
equivalents. For patents, see www.cs-pat.com.
Contact information
Visit our website or contact your local CommScope representative for more
information.
For technical assistance, customer service, or to report any missing/damaged
parts, visit us at: http://www.commscope.com/SupportCenter
Installation video and
animation OFDC-12
https://www.youtube.com/watch?v=NuOYHBUhMqw
https://www.youtube.com/watch?v=GP3cJpxtWxM
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