Corning Ose series User manual

P/N 001-285

Issue 4

Standard Recommended Procedure 001-285 | Issue 4 | February 2017 | Page 1 of 8

OSE Splice Trays

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1. General

This document describes the installation of optical ber with

both single ber and/or ribbon ber splices into Optical Splice

Enclosure (OSE) metal splice trays (Figure 1).

Make sure you read and understand this instruction as well

as instructions provided with related assemblies before

beginning an installation. This document should be used

in conjunction with instructions provided with the cables,

splicing components, and hardware being used.

Contact your Corning Customer Care representative for

assistance in purchasing items that are sold separately.

2. Precautions

2.1 Laser Handling Precautions

WARNING: Never look directly into the end of a ber that may be carrying laser light. Laser light can

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 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.

2.2 Safety Precautions

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.

TPA-4955

Figure 1

Standard Recommended Procedure 001-285 | Issue 4 | February 2017 | Page 2 of 8

CAUTION: Isopropyl alcohol is ammable with a ashpoint at 54°F. It can cause irritation to eyes on

contact. In case of eye contact, ush eyes with water for at least 15 minutes. Inhaling fumes may cause

mild dizziness. In case of ingestion, consult a physician..

2.3 Glass Fiber Precautions

CAUTION: Cleaved or broken glass bers are very sharp and can pierce the skin easily. Do not let these

pieces of ber stick to your clothing or drop in the work area where they can cause injury later. Use

tweezers to pick up cleaved or broken pieces of glass bers and place them on a loop of tape kept for

that purpose alone. Good housekeeping is very important.

2.4 Cable Handling Precautions

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.

3. Tools And Materials

In addition to the standard tools and materials required for sheath removal and splicing, the following may be

required:

• Cable crimping tool (P/N M67-020) to anchor buer tubes under splice tray crimping tabs.

• Cable preparation tool kit and a spatula when using ribbon ber.

• Single-ber heat-shrink splice protectors for OSE-ST-1 (purchased separately, P/N 2806031-01 [60

mm long], 2806032-01 [40 mm long]).

• Mass fusion heat-shrink splice protectors for OSE-ST-3 (purchased separately, P/N 2806031-4 [2- or

4-ber ribbon], 2806031-012 [6- or 12-ber ribon]).

4. Stripping Fiber

Strip buer tube to expose 182 cm (72 in) of ber. This length will allow two loops of ber around the inside

perimeter of the tray.

NOTE: Detailed ber stripping instructions are found in splicing documentation. Do not expose the bare ber

until ready to splice it.

Standard Recommended Procedure 001-285 | Issue 4 | February 2017 | Page 3 of 8

5. Routing Fiber

The recommended ribbon/ber routing congurations are illustrated in Figure 2.

Loop the ber twice around the inside perimeter of the tray (once for the OSE-ST-3-TQ and OSE-ST-9 trays).

Figure 2

IMPORTANT: The bers must enter/exit the tray at the same corner as shown in Figure 2. Strain-relieve the

buer tubes appropriately as detailed in Sections 6-8. Fiber #1 enters the splice organizer from the

bottom and ber #2 enters the splice organizer from the top.

6. Securing Loose Tube Cable

Step 1: Use a crimp tool (P/N M67-020) to secure buer

tubes to the tray.

a. Adjust the stop screw on the crimp tool

until the jaws of the tool are equal to

the outer diameter of the buer tube

(Figure 3).

b. Tighten the lock nut.

OSE-ST-1:

36 Heat-shrink fusion splices

OSE-ST-9:

108 Heat-shrink fusion splices

(12-ber ribbon, 108 total bers)

OSE-ST-3:

6 Heat-shrink mass fusion splices

(12-ber ribbon, 72 total bers)

OSE-ST-3-TQ:

12 Heat-shrink mass fusion splices

(12-ber ribbon, 144 total bers)

OSE-ST-2:

36 Fusion splices using Crimp & Go®

splice protectors or RTV compound

OSE-ST-4:

36 Mechanical splices

TPA-4946

123

Single-ber Splice Trays Ribbon Fiber Splice Trays

36 splices36 splices 36 splices

TPA-4948

Buffer tube

Lock nut

Stop screw

Figure 3

Standard Recommended Procedure 001-285 | Issue 4 | February 2017 | Page 4 of 8

Step 2: Use the inner tab on the splice tray rst. Position the buer

tube approximately 1 cm (3/8 in) beyond the tab (Figure 4).

Crimp the buer tube under the tab using the crimp tool.

IMPORTANT: Do not crush the buer tubes.

7. Securing Tight Buered Cable

Secure tight buered cables using cable ties threaded through

holes in the tray (Figure 5).

IMPORTANT: Multiple pigtails may be secured with a single

cable tie. Wrap 1.5 in of vinyl tape around the

pigtails as protection. Position cable tie buckles

inside the tray and to one side of the cable

bundle to avoid interference with the cover

(Figure 6).

Figure 6

8. Securing Ribbon Fibers

Step 1: Orient the buer tube/transport tubing

with the ribbons on edge and the aqua

(#12) ber facing upward.

IMPORTANT: Verify that the ribbons are placed in

the vertical plane and are not lying

at in the tray. To prevent damage

to the ribbon bers, they must be

routed without twisting the ber.

Avoid crossing the ribbons over

each other.

NOTE: A ribbon strain-relief kit is required to secure and transition ribbon bers without tubing to the splice tray

(Figure 7). This kit is provided with the OSE-ST-3 splice tray. Follow the instructions in the kit.

Step 2: Secure ribbon buer tubes using cable ties threaded through holes in the tray (Figure 7).

Buffer tube 3/8-in

beyond crimp tab

Crimp inner tab first

TPA-4947

Figure 4

Buffer tube or

tight-buffered cable

Cable tie

(buckle to one side)

Lip

TPA-2992

Figure 5

TPA-4949

Pigtail

Ribbon fiber

Split grommet

Lip

Cable tie

(buckle to one side)

TPA-2990

Figure 7

Standard Recommended Procedure 001-285 | Issue 4 | February 2017 | Page 5 of 8

Alternatively, the ribbon ber can be secured using 3/8-in

braided tubing as shown in Figure 8.

a. Cut a section of buer tube 1 inch in length.

b. Slide the buer tube section inside the

braided tubing as shown in Figure 8.

c. Wrap with vinyl tape to secure the tube to

the tubing.

Alternatively, (for OSE-ST-3TQ tray applications) the ribbon

ber can be secured using clear transport tubing as shown

in Figure 9.

a. Wrap the last inch or two of the transport

tube with friction tape (this will help the

tube adhere to the tray).

b. Group the incoming tubes into two sets

of two tubes (the rst being the incoming

pair, and the second being the outgoing) as

shown in Figure 9.

c. Secure the tubes to the tray using cable ties

(Figure 9).

9. Splicing Ribbon Fibers

NOTE: Place the tray as close to the splicing equipment as

possible. This reduces the possibility of broken bers

while transferring them from the tray to the splicer.

Step 1: Identify the #1 ribbon from each buer tube. Loop

both ribbons twice around the inside perimeter of

the splice tray. Make sure the ribbons are under the

inside lip of the tray.

IMPORTANT: Avoid twisting the ribbon so it will lie neatly

in the tray. Twisting the ber can lead to high

attenuation. Avoid crossing the ribbons over

each other.

Step 2: Remove just enough ribbon from the tray

to reach the splicing equipment. Do not

remove the entire length of ribbon from the

tray or twist ribbons as they are removed.

Step 3: Place one ribbon in the splice organizer in

the slot on the far left side of the organizer,

entering from the top. Loop the other ribbon

another half loop and place it on the right

side of the organizer.

1-in section of buffer tube

Ribbons

3.8-in braided tubing

1/2 in 1/2 in

Wrap this section with tape

TPA-4950

Figure 8

TPA-4958

Figure 9

TPA-4952

Splice point

Figure 10

TPA-4951

Ribbon holders

(from splicers)

Splice protector

Figure 11

Standard Recommended Procedure 001-285 | Issue 4 | February 2017 | Page 6 of 8

a. Determine the splice point (Figure 10). Allow another 2.5 cm (1 in) of ribbon for stripping and

cleaving, cut the ribbon and place it into the left holding xture on the mass fusion splicer

with 2.5 cm (1 in) exposed.

b. Loop the other ribbon one-half loop and bring it to the same splice organizer slot from

below (Figure 10).

IMPORTANT: When using heat-shrink splice protection (OSE-ST-3), place the mass fusion heat-shrink splice

protector over the bers. The splice protector must be installed onto the ribbon/ber BEFORE the

ber is spliced (Figure 11).

c. Slide a heat-shrink splice protector over the ribbon.

d. Note the mid-point of the splice and allow another 3.8 cm (1.5 in) for stripping and cleaving.

Cut the ribbon and place it into the right holding xture on the mass fusion splicer with 2.5

cm (1 in) of ribbon exposed.

e. Strip, cleave, and splice the ribbons according to the fusion splicer instruction. Be sure not

to add any twists to the ribbon during this process to ensure that the ribbon can be routed

neatly in the tray.

NOTE: If resplicing is necessary:

a. The ribbon must be recleaved.

b. Before recleaving, position the ribbons in the second slot of the splice holder and verify the length is

sucient to avoid a bend radius violation.

c. The ribbons must be pushed out toward the inner walls of the splice tray as much as possible.

d. If necessary, cut the ribbons to ensure only one inch of excess length.

e. Place the ribbons back into their respective holding xtures, while making sure that the splice

protector is still on the ribbon.

IMPORTANT: If this happens more than twice, however, an entire

loop of ribbon slack must be removed. The ribbons

must be spliced in the correct order to prevent crossing

the bers over one another when routing them.

Step 4: Carefully route the ribbons back into the tray and place the

splice into the organizer.

Step 5: Repeat until all ribbons are spliced. Each ribbon must be

spliced consecutively. Always use the planned position of

the ribbon in the splice holder to determine the length of

ribbon required. Do not place the splices in the organizer

randomly.

Step 6: Make sure all ribbons are below the ber retaining tabs.

Align the hole in the cover with the hole in the tray. Snap the cover onto the tray (Figure 12).

10. Splicing Single Fibers

NOTE: Place the tray as close to the splicing equipment as possible. This reduces the possibility of broken bers

while transferring them from the tray to the splicer.

Step 1: Route all bers into the tray as described in Section 5. Make the largest circles possible to avoid

attenuation from tight bends. Make sure the ber is under the inside lip of the tray.

Step 2: Remove just enough ber from the tray to reach the splicing equipment. Do not remove the entire

length of ber from the tray or twist bers as they are removed.

IMPORTANT: When using heat-shrink splice protection (OSE-ST-1), slide the splice protector onto the ber before

the ber is spliced. When splicing into OSE-ST-2 splice trays, proceed to Section 11.

TPA-4953

Figure 12

Standard Recommended Procedure 001-285 | Issue 4 | February 2017 | Page 7 of 8

Step 3: Slide the splice protector over the splice. Splice per manufacturer’s instructions.

Step 4: Carefully route the bers back into the tray and place the protected splice into the organizer.

Step 5: Repeat until all bers are spliced. Each ber must be spliced consecutively.

Step 6: Make sure all bers are below the ber retaining tabs. Align the hole in the cover with the hole in the

tray. Snap the cover onto the tray (Figure 12).

11. Using the Step-Slot Splice Organizer

Step 1: Spliced bers in the OSE-ST-2 splice tray are stored in the

step-slot organizer. This organizer accepts 250 and 900 µm

bers (Figure 13). The 250 µm bers are secured in the lower

grooves in the organizer while the 900 µm bers t into the

surface slots.

Step 2: When splicing 250 µm bers, protect the splices using the

Crimp & Go®splice protectors provided with the OSE-ST-2

splice tray. Refer to the splicing documentation, if necessary,

for detailed instructions on the use of these protectors.

a. Place the splice protector over the splice point with the opening in the Crimp & Go® splice

protector facing down towards the organizer.

b. Squeeze the protector closed and insert into the organizer.

IMPORTANT: Avoid twisting the ber as you insert it into the organizer.

• If using Crimp & Go splice protectors with 250 µm ber, do not use the RTV silicone compound

(RTV).

• If splicing 900 µm ber, do not use Crimp & Go splice protectors.

• RTV can be used on 250 µm bers, however, Crimp & Go splice protectors are the preferred

method.

Step 3: When splicing 900 µm bers, protect the

bers using RTV.

a. Place the splices in the organizer in

consecutive order.

b. Fill the slots holding splices with

RTV as shown in Figure 14. Do not

overll and avoid the empty slots.

c. Place a piece of waxed paper, cut

to size, over the RTV to prevent the

RTV from sticking to the tray cover.

TPA-4957

900 µm

250 µm

Figure 13

Figure 14

Standard Recommended Procedure 001-285 | Issue 4 | February 2017 | Page 8 of 8

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