CORNING WBM User Manual

Corning Cable Systems

Standard Recommended Procedure (SRP) 003-516

Issue 2, October 2004

Page 1 of 8

Mini Wall-mount Building Terminal (WBM)

Figure 1 — WBM

Contents

1. General .............................................................................................................................................1

2. Description ....................................................................................................................................... 2

3. Precautions .......................................................................................................................................2

4. Tools and Materials ..........................................................................................................................3

5. Components ..................................................................................................................................... 3

6. Mounting the Unit ...........................................................................................................................4

7. Preparing the Cable..........................................................................................................................4

8. Splicing ............................................................................................................................................. 5

9. Routing the Fiber ............................................................................................................................. 6

10. Maintenance .....................................................................................................................................7

Customer Service and Information .................................................................................................. 8

1. General

1.1 This instruction describes the recommended procedure for installing the Mini Wall-

mount Building Terminal (WBM) manufactured by Corning Cable Systems.

1.2 This document is being reissued to illustrate addition of side entry ports.

NOTE: Read and understand this procedure (as well as the instructions provided with related

assemblies) before beginning an installation. Familiarize yourself to understand the unit’s
placement in your network. Make sure you know where the cable will enter the unit, how
jumpers will be routed and other details of the installation plan.

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Page 2 SRP 003-516 • Issue 2 • October 2004

2. Description

2.1 The Mini Wall-mount Building Terminal (Figure 1) is a reduced size, slim-design wall-

mountable distribution unit ideal for installation areas requiring compact interface terminals
between intrabuilding fiber optic cable in ribbon form and optoelectronic equipment.

2.2 The WBM comes with twelve SC connector adapters which are installed into a
connector panel. The unit is also available with a six-fiber panel.

2.3 The WBM accommodates a unique reduced-length splice tray which protects a single
mass fusion splice. The splice tray is secured in a spring-loaded bracket behind the connector
panel. The bracket allows the tray to be removed when the telco door is opened.

2.4 SC connectors are coupled to a 900 µm pigtail ribbon fan-out body contained in the

splice tray. Fan-out kits are sold separately. Contact your Corning Cable Systems representative
for assistance in ordering the appropriate accessories.

3. Precautions

3.1 Laser Handling Precautions

WARNING: NEVER LOOK DIRECTLY INTO THE END OF A FIBER THAT

MAY BE CARRYING LASER LIGHT. Laser light may be 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 magnifiers in the presence of laser radiation. Diffused laser
light can cause eye damage if focused with optical instruments. Should accidental eye
exposure be suspected, arrange for an eye exam immediately.

3.2 Safety Precautions

CAUTION: The wearing of safety glasses to protect the eyes from accidental injury is

strongly recommended when handling chemicals and cutting fiber. Pieces of glass fiber are
very sharp and can damage the cornea easily.

CAUTION:The wearing of safety gloves to protect hands from accidental injury is
strongly recommended when using sharp instruments.

CAUTION: ISOPROPYL ALCOHOL is flammable with a flashpoint at 54
cause irritation to eyes on contact. In case of eye contact, flush eyes with water for at least
15 minutes. Inhaling fumes may induce mild narcosis. In case of ingestion, consult a
physician.

3.3 Glass Fiber Precautions

WARNING: Cleaved glass fibers are very sharp and can pierce the skin easily. Do not

let cut pieces of fiber stick to your clothing or drop in the work area where they can cause
injury later. Use tweezers to pick up cut or broken pieces of the glass fibers and place them
on a loop of tape kept for that purpose alone. GOOD HOUSEKEEPING IS VERY
IMPORTANT.

°

F. It can

Mini Wall-mount Building Terminal (WBM)

SRP 003-516 • Issue 2 • October 2004 Page 3

3.4 Cable Handling Precautions

NOTE: Fiber optic cable is sensitive to excessive pulling, bending and crushing forces. Consult the cable

specification sheet for the cable you are installing. DO NOT BEND CABLE MORE
SHARPLY THAN THE MINIMUM RECOMMENDED BEND RADIUS. DO NOT
APPLY MORE PULLING FORCE TO THE CABLE THAN SPECIFIED. 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.

4. Tools and Materials

4.1 In addition to the usual complement of installation tools, a 216B tool and cable tie tool

are required for this installation.

4.2 Mounting hardware is not provided. The type of hardware used is dependant on the
mounting location; wall anchors may be required for adequate support on sheetrock walls.

5. Components

5.1 The major components are illustrated in Figure 2. Cable can enter from the top, bottom,

or left side of the unit.

5.2 A hardware kit is provided which includes a watertight cord connector, cable ties, and a
double-backed adhesive strip.

Telco Door

Entry Grommets

Entry Grommets

Routing Clips

Splice Tray
Retainer

Entry Grommet

Splice Tray

Connector Panel

Entry Grommet

Slide Latch

Subscriber Door

Figure 2 — Components

Mini Wall-mount Building Terminal (WBM)

Page 4 SRP 003-516 • Issue 2 • October 2004

6. Mounting the Unit

Select a flat vertical surface for mounting to prevent warping.

Step 1 Mark the location for the mounting screws as shown in Figure 3. Open the doors

and locate the mounting holes on the backplate. Mark the wall with a pencil.
(Mounting hardware is not provided.)

Step 2 Drive the top two screws in where marked leaving a

mounting surface and screw head.

Step 3 Place the unit on the mounting hardware and tighten the screws. Drive the two

remaining screws through the mounting holes in the bottom of the housing.

23.7 cm

(9.35 inches)

23 cm

(9.04 inches)

1

/8-inch gap between the

11.7 cm

(4.60 inches)

12 cm

(4.75 inches)

17 cm

(6.73 inches)

IMPORTANT: The additional peripheral dimensions shown in Figure 3 are clearance distances and

are required to prevent interference when the access doors of the unit are opened.

7. Preparing the Cable

7.1 Slide the connector body cap and

appropriately sized cable grommet over the cable as
shown in Figure 4.

7.2 Determine the cable entry location. Remove
the appropriate entry grommet from the housing.
Install the threaded connector body into the WBM as
shown in Figure 4.

7.3 Feed the cable through the threaded
connector to the prescribed length as shown in
Figure 4. Make sure approximately one or two inches
of jacketed cable are inside the unit after the stripping
procedure on the ribbon fiber.

7.4 Push the connector cap onto the cable
grommet and firmly tighten the cap onto the
connector body.

Connector
Cap

Cable
Grommet

Threaded
Connector
Body

26 inches of
Cable Inside
Housing

Figure 3 — Hole Location

24 inches of
Ribbon Fiber
Inside Housing

7.5 Strip the ribbon cable to 24 inches as shown

in Figure 4.

Mini Wall-mount Building Terminal (WBM)

Figure 4 — Strip Cable

SRP 003-516 • Issue 2 • October 2004 Page 5

y

7.6 Remove the tray from the WBM. Attach a
split grommet around the ribbon fiber. Position the
protected fiber under the crimp tab at the corner of

Splice Tray

the tray as shown in Figure 5. Tighten the crimp
tab on the tray around the split grommet to secure
the ribbon fiber.

Split Grommet

Ribbon Fiber

7.7 Make one and one-half loops of fiber
inside the tray to the splice holder (Figure 6).

IMPORTANT: Figure 8 illustrates the

8. Splicing

8.1 Splice the ribbon from the incoming cable to the ribbon pigtail from the fan-out body.

Follow the instructions provided with the splicing equipment you are using.

8.2 Secure the fan-out body to the tray in the location shown in Figure 7. Use the double­backed adhesive tape strip that was included in the hardware kit to attach the body to the tray.

8.3 Route the fibers as shown in Figure 7. Secure the outgoing fibers loosely with a cable tie.

direction of the fiber when the
cable enters from the top of the
unit. When bottom entry of the
cable is necessary, simply
reverse the fiber orientation.

Figure 5 — Protect Ribbon

Splice Holder

Incoming
Ribbon

Figure 6 — Loop Ribbon Inside Tray

8.4 Make sure all fibers are captured
under the flange of the splice tray and
attach the cover. Slide the splice tray under
the splice tray retainer (Figure 2).

8.5 Loop the ribbon fiber as shown in
Figure 6. Use the routing clips to stabilize
the ribbon.

IMPORTANT: Figure 9 illustrates the

direction of the fiber when the cable
enters from the top of the unit. When
bottom entry of the cable is necessary,
simply reverse the fiber orientation.

Outgoing Pigtails

Cable
Tie

Fan-out Bod

Figure 7 — Secure Fan-out

Mini Wall-mount Building Terminal (WBM)

Page 6 SRP 003-516 • Issue 2 • October 2004

Top Entry

Side Entry

Figure 8 — Route Ribbon Through Clips

9. Routing the Fiber

9.1 Route the pigtail fibers through the routing clips and up to the connector adapters as

shown in Figure 9. Install the connectors into the adapters.

NOTE: The connector is a delicate device. Obey the following precautions. Damage to the surface of the

connector will make it unusable.

1) Use a clean tissue soaked in alcohol to gently clean the connector. Do not press heavily on
it as you clean.

2) Dry the connector prior to installation by blowing it dry with compressed air or a dry
tissue.

3) Clean all areas that will contact the connector adapter.

4) Do not force the connector into the receptacle.

• If the connector does not fit easily into the receptacle, back it out and reinstall.

• Install threaded connectors into the adapter and tighten. Do not OVERTIGHTEN.

Figure 9 — Route Pigtail Fiber

• Do not allow the connector body (ferrule) to turn as you screw it into place. This causes
the surfaces to grind against each other.

Mini Wall-mount Building Terminal (WBM)

SRP 003-516 • Issue 2 • October 2004 Page 7

9.2 Once you have determined the top or bottom exit of the outgoing jumpers, prepare the
appropriate entry grommet as shown in Figure 10.

9.3 Install jumpers through the prepared grommet on the subscriber side of the unit as
shown in Figure 11.

Use a pair of needle-nose pliers or
a sharp pencil to pierce the grommet.

Do not use a knife or cutters.
Grommets must fit tightly to prevent
the intrusion of foreign particles. A
knife may cut all the way through the
grommet and cutters may cut a hole
that is too large for the grommet to
fit tightly.

Figure 10 — Grommet Preparation

10. Maintenance

The unit requires very little maintenance to make sure fibers and parts remain in good
condition.

External components may be cleaned occasionally with a damp, non-abrasive cloth. Internal
components should be checked periodically for the following:

Loose Parts: Check nuts, bolts and screws for looseness and tighten.

Moisture: Check the housing for accumulated moisture. Place moisture absorbent packets as

needed.

Figure 11 — Route Jumpers

Fiber Bends: Check fiber optic cable to make sure bends do not exceed the minimum bend
radius. Check cable for unnecessary strain. Check cable entries and exits for crimping or
crushing.

Mini Wall-mount Building Terminal (WBM)

Page 8 SRP 003-516 • Issue 2 • October 2004

Customer Service and Information

Telephone: ———————————————————————————————————
Customer Service—US or Canada: 1-800-743-2671
International: [phone]
Fax: [phone]

Correspondence: ————————————————————————————————

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Corning Cable Systems LLC
PO Box 489
Hickory, NC 28603-0489 USA

Product Information: ———————————————————————————————

http://www.corning.com/cablesystems

Corning Cable Systems reserves the right to improve, enhance and modify the features and specifications
of Corning Cable Systems’ products without prior notification. Discovering Beyond Imagination is a
trademark of Corning Incorporated. All other trademarks are the properties of their respective owners.
Corning Cable Systems is ISO 9001 certified.
© 1999, 2004 Corning Cable Systems. All rights reserved. Published in the USA.
p/n 003-516 / October 2004