CORNING CCH 4U User manual

P/N 003-460
Issue 6
Standard Recommended Procedure 003-460 | Issue 6 | October 2017 | Page 1 of 4
CCH 4U Horizontal Distribution Unit
(CCH-H4U)
1. Precautions
Laser Handling Precautions
Safety Precautions
Cable Handling Precautions
2. CARTON CONTENTS
• Horizontal distribution unit
• Hardware Kit containing:
• (1) Unit identication label
WARNING: Never look directly into the end of a ber that may be carrying laser light. Laser light is
invisible and can damage your eyes. Viewing it directly does not cause pain. The iris of the eye will not
close involuntarily as when viewing a bright light. Consequently, serious damage to the retina of the eye
is possible. Should accidental eye exposure to laser light be suspected, arrange for an eye examination
immediately.
WARNING: DO NOT use magniers in the presence of laser radiation. Diused laser light can cause eye damage
if focused with optical instruments. Should accidental eye exposure to laser light be suspected, arrange for an eye
examination immediately.
CAUTION: Recommend the use of safety glasses (spectacles) conforming to ANSI Z87, for eye protection from
accidental injury when handling chemicals, cables, or working with ber. Pieces of glass ber are very sharp and
have the potential to damage the eye.
CAUTION: The wearing of cut-resistant safety gloves to protect your hands from accidental injury
when using sharp-bladed tools and armored cable is strongly recommended. Use extreme care when
working with severed armor. There will be a sharp edge where armor is cut. To minimize the chance of
injury from the cut armor, cover the exposed edge with a wrap of electrical tape. To minimize the chance
of injury from sharp-bladed tools, always cut away from yourself and others. Dispose of used blades and
armor scrap properly.
WARNING: Isopropyl alcohol is ammable with a ashpoint at 54ºF. It can cause irritation to eyes on contact. In
case of contact, ush eyes with water for at least 15 minutes. Inhalation of vapors irritates the respiratory tract.
Exposure to high concentrations has a narcotic eect, producing symptoms of dizziness, drowsiness, headache,
staggering, unconsciousness and possibly death.
CAUTION: Fiber optic cable is sensitive to excessive pulling, bending, and crushing forces. Consult the cable
specication sheet for the cable you are installing. Do not bend the cable more sharply than the minimum
recommended bend radius. Do not apply more pulling force to the cable than specied. Do not crush the cable or
allow it to kink. Doing so may cause damage that can alter the transmission characteristics of the cable; the cable
may have to be replaced.
• (1) Label, 12 x 12 position
• (12) 1/4 x 4-in cable ties
• (4) 10-32 x 0.375-in Phillips screws
• (4) 12-24 x 0.5-in Phillips screws
related literature | Search www.corning.com/opcomm. Click on “Resources/Standard Recommended Procedures.”
003-460-FR Instruction, CCH 4U Horizontal Distribution Unit (CCH-H4U) (French)

Standard Recommended Procedure 003-460 | Issue 6 | October 2017 | Page 2 of 4
3. Components
Components are illustrated.
4. Tools and Materials
• Phillips screwdriver
• 5/16-in socket or wrench
5. ADDITIONAL MATERIALS (PURCHASED SEPARATELY)
May or may not be required depending on your application.
• Connector Panels (CCH-CPXX-YY)
• Grounding kit (HDWR-GRND-KIT) for armored cable
• Additional UCCkits (UCC-001/-005)
• 23-in adapter brackets
or 24-in rack-mounting brackets (CDF-04U-24-BKT)
6. Mounting
NOTE: The CCH unit comes ready to be installed in a 19-in rack with
EIA/TIA universal hole spacing. The unit’s projection from the
rack can be changed by attaching the rack mounting brackets
to another of the two pairs of threaded holes on the sides of the
unit.
To install the unit on a 23- or 24-in rack, rst attach the brackets (sold
separately) using the #10-32 screws provided.
Attach the unit to the equipment rack using the four mounting screws
provided. Two screws are required per side of each housing.
NOTE: Make sure to align the top mounting hole of the CCH-H4U so
that the next hole above it in the rack is 5/ 8-in higher and the
rst hole below is 5/8-in lower. Doing otherwise will result in
the misalignment of the lower mounting holes. The rst hole in
bracket aligns with hole in rack as indicated. (This is crucial when
stacking housings in the rack.)
7. Cable Installation
NOTE: Cable is generally routed to the housing and strain-relieved
directly to the unit. Then it is routed to the back of the
connector panels inside the housing.
Step 1: Prepare the cable as illustrated.
Blank panels
(sold separately)
Jumper routing guides
Label plateAdjustable mounting bracket
Fiber optic storage
cassettes
Strain-relief panel
TPA-3639
• 3/8-in socket or wrench
• Sand paper
Adapter Bracket
TPA-3640
Frame upright
5/8 in
5/8 in
1/2 in
Mounting bracket
TPA-3641
Fiber for connector installation
(See instruction provided with the connector.)
Central member:
4 in (10 cm)
Yarn: 4 in (10 cm)
Buffer tubes: 72 in (183 cm)
TPA-3642

Standard Recommended Procedure 003-460 | Issue 6 | October 2017 | Page 3 of 4
NOTE: Do not expose the bare ber until you are ready
NOTE: If at least 33 ft (10 m) of outside plant cable is routed within an environmentally controlled building where
temperature uctuation is minimal, strain-relieving the cable sheath is adequate. Securing the cable
strength members (yarn and/or central member) is not necessary. For cable sheath retention only, cable
ties or the UCC clamp should be used.
Step 2: Strain-relieve the cable.
• If you plan to use the Universal Cable Clamp (UCC) for ber
installations, remove the central member and yarn.
a. Attach the clamp to the rear of the housing as shown.
b. Follow installation
instructions provided
with the UCC kit to
secure the cable.
• If using cable ties, use two cable ties to secure the cable
as shown.
Step 3: Install preconnectorized ber into connector panels:
a. Remove the blank panels from the unit
as shown.
b. Install connector panels into the support
panel in front of the housing using the
nylon fasteners.
c. Install preconnectorized cable into the
adapters at the rear of the connector panels.
TPA-3643
TPA-3644
Cable Ties
TPA-3645
TPA-3646

Standard Recommended Procedure 003-460 | Issue 6 | October 2017 | Page 4 of 4
Corning Optical Communications LLC • PO Box 489 • Hickory, NC 28603-0489 USA
800-743-2675 • FAX: [phone] • International: [phone] • www.corning.com/opcomm
Corning Optical Communications reserves the right to improve, enhance, and modify the features and specications of Corning Optical Communications products without
prior notication. A complete listing of the trademarks of Corning Optical Communications is available at www.corning.com/opcomm/trademarks. All other trademarks are
the properties of their respective owners. Corning Optical Communications is ISO 9001 certied. © 1997, 2017 Corning Optical Communications. All rights reserved.
Step 4: Store cable slack:
a. Route cable underneath the support rail.
b. Store cable slack in the storage cassettes that are
snapped vertically onto the support rails at the rear
of the housing.
c. Pivot the storage cassettes on the rail to allow
easy access to the interior storage section.
NOTE: The storage cassette is a two-piece assembly capable of
holding up to two jumpers or six bers and six feet of slack
per ber. The cassette includes a radius guide ensuring that
the minimum bend radius is maintained inside the storage
section. Simply rotate the removable cap to separate the cap
from the storage area. Loosely route the bers in a
counterclockwise direction around the radius guide and
replace the cap to secure the bers inside the cassette.
d. Route ber under the guide rails.
8. Jumper Management
• Install jumpers as specied on planning
diagrams.
• Route jumpers through the opening above
and out the sides of the patch eld for ease
in jumper tracing and accessibility to the
connectors. Feed the jumpers through the
routing clips on the front of the unit. Do not
overpopulate the clips.
• Identify each connection and record the information on the pull-out label plate stored underneath
the front shelf. To remove the label plate, either pull it straight out and rotate it in a downward
direction or pull it out slowly and allow it to drop down. Either write directly on the label plate or
use printed labels. The unit accepts labels less than or equal to 1X0.4 inches.
• Record jumper routing information on the provided identication (ID) label. Attach the label to the
inside of the unit’s front door.
TPA-3647
TPA-3648
TPA-3651