Corning Cable SystemsStandard Recommended Procedure (SRP) 003-545

Issue 4, July 2004Page 1 of 13

p/n 003-545

Table of Contents

1. General ........................................................12. Description ..................................................13. Precautions ..................................................24. Tools and Materials .....................................25. Components.................................................36. Unpacking Stubbed Units ...........................37. Installing Holes ............................................48. Mounting .....................................................49. Preparing Cable ...........................................5

10. Connector Panels ........................................711. Splicing ........................................................812. Installing Fan-outs .....................................1013. Installing Drop Cable ................................1114. Maintenance ..............................................1315. Specifications .............................................13

1. General1.1 This instruction describes recommendedprocedure for the installation of the six-panelEnvironmental Distribution Center (EDC)(p/n EDC-06P-NH) manufactured by CorningCable Systems.

1.2 To purchase any accessories that are soldseparately, contact your Corning Cable Systemsservice representative for assistance.

1.3 This document is being reissued to clarifycable cleaning directions.

NOTE: Read and understand this procedure (aswell as the instructions provided with relatedassemblies) before beginning an installation. Makesure you know how the unit will be mounted andhow the distribution cable and drop cable will berouted to the unit.

2. Description2.1 The EDC that stores and protects fiberoptic connections and splices in an outdoorenvironment. The cabinet carries a NEMA 250Type 4X and Type 13 rating in addition to aIEC 529 IP66 rating. The unit providesenvironmental protection and strain-relief forone distribution cable and up to six drop cables.

2.2 Connector panels are used to provideinterconnection between the distribution anddrop cables. The EDC accommodates up to sixLANscape® connector panels. Colored icons areavailable with different symbols for a quickvisual reference of the data type at eachconnector location. Panels and connector panelicons are ordered separately.

2.3 The unit accommodates six Type 2S orthree Type 4S splice trays that protectmechanical or fusion splices. Splice trays areordered separately.

2.4 The unit can be field connectorized usingbuffer tube fan-out (BTF) kits, which areordered separately.

2.5 The EDC comes with brackets to mountthe unit to a wall or a standard utility pole. Theunit may be rack-mounted with an optionalrack-mount kit.

Figure 1

Environmental Distribution Center (EDC-06P-NH)

Page 2 SRP-003-545 • Issue 4 • July 2004

3. Precautions3.1 Laser Handling Precautions

WARNING: Never look directly into theend 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 theeye will not close involuntarily as when viewing abright light. Consequently, serious damage to theretina of the eye is possible. Should accidental eyeexposure to laser light be suspected, arrange for an eyeexamination immediately.

WARNING: DO NOT use magnifiers in thepresence of laser radiation. Diffused laser light cancause eye damage if focused with optical instruments.Should accidental eye exposure be suspected, arrangefor an eye exam immediately.

3.2 Safety Precautions

CAUTION: The wearing of safety glasses toprotect the eyes from accidental injury is stronglyrecommended when handling chemicals and cuttingfiber. Pieces of glass fiber are very sharp and candamage the cornea easily.

CAUTION: The wearing of safety gloves toprotect hands from accidental injury is stronglyrecommended when using sharp instruments.

CAUTION: Isopropyl alcohol is flammablewith a flashpoint at 50°F. It can cause irritation toeyes on contact. In case of eye contact, flush eyes withwater for at least 15 minutes. Inhaling fumes mayinduce mild narcosis. In case of ingestion, consult aphysician.

3.3 Glass Fiber Precautions

WARNING: Cleaved glass fibers are verysharp and can pierce the skin easily. Do not let cutpieces of fiber stick to your clothing or drop in the workarea where they can cause injury later. Use tweezers topick up cut or broken pieces of the glass fibers and placethem on a loop of tape kept for that purpose alone.Good housekeeping is very important.

3.4 Cable Handling Precautions

NOTE: Fiber optic cable is sensitive to excessivepulling, bending and crushing forces. Consult the cablespecification sheet for the cable you are installing. Donot bend the cable more sharply than theminimum recommended bend radius. Do notapply more pulling force to the cable thanspecified. Do not crush the cable or allow it tokink. Doing so may cause damage that can alter thetransmission characteristics of the cable — the cablemay have to be replaced.

3.5 Installer Precautions

WARNING: Do not install this unit or workwith telephone wiring during a lightning storm.Telephone lines can carry high voltages from lightningcausing electrical shock resulting in severe injury ordeath.

4. Tools and MaterialsIn addition to the usual complement ofinstallation tools, the following are required forthis installation:

• Slotted and Phillips-head screwdrivers

• Tape measure

• Pliers

• 8-mm (5/16-inch) open or box wrench

• Hole saw

• Two cable entry port fittings and sealant (ifrequired)

Mounting hardware is not provided. The typeof hardware used is dependant on the mountinglocation; wall anchors may be required foradequate support on sheetrock walls.

2.6 The unit may be padlocked with a usersupplied padlock after installation of theprovided quick-release latch kit.

2.7 Factory stubbed units are available with aspecific length of preconnectorized cableinstalled and strain-relieved in the unit.

Page 3SRP-003-545 • Issue 4 • July 2004

5. Components5.1 Components are illustrated in Figure 2.

• The base plate is the dark metal part insidethe enclosure to which the components areattached. It is secured by one screw in eachcorner.

• There are top and bottom mountingbrackets.

• The splice tray holder is removed forclarity.

• The fan-out bracket is underneath the splicetray mounting location.

Figure 2

5.2 An installation kit is provided thatincludes cable ties, central member strain-reliefhardware, a sheath retention kit and a quick-release latch kit.

6. Unpacking Stubbed UnitsFollow the directions in StandardRecommended Procedure 003-310, providedwith the shipping container, to remove thestubbed unit from its packaging.

Mounting Bracket

Ground Kit Loca-

tion

(When Required)

Radius Control Guides

Record

Label

Splice Tray

Mounting

Location

Central Mem-

ber

Strain-Relief

Bracket

Connector

Panel

Bracket

Sheath

Retention

Bracket

Drop Cable

Strain-Relief

Bracket

Splice Tray Holder

Page 4 SRP-003-545 • Issue 4 • July 2004

Drive a screw through the mounting bracket and stabilizer bracket and into the mounting surface.

Hang the unit over the mounted stabilizer bracket.

Stabilizer Bracket

6 cm (2.375 in.)

4.4 cm (1.75 in.)

3.2 cm (1.25 in.)

6.7 cm (2.625 in.)

3.5 cm (1.375 in.)

18 cm (7 in.)

7. Installing HolesIMPORTANT: Remove the base plate from thehousing before cutting any holes.

7.1 Determine the size hole needed based onthe fitting being used. Based on dimensions inFigure 3, measure and mark the location of thehole centers on the bottom of the unit. The 2-inch conduit fitting holes are represented by thelarger circles and the 1-inch conduit holes bythe smaller circles.

7.2 Cut holes as required for your couplingfitting. Follow local safety practices.

7.3 Install the fittings (purchased separately).Fitting kits are dependant on the type of fittingdesired for your application.

7.4 Reinstall the base plate.

Figure 3

8. MountingNOTE: If you will be mounting the EDC withoutthe stabilizer bracket, remove and discard thestabilizer bracket. Position the housing as desiredand secure using 1/4-inch screws in the top andbottom mounting brackets.

Figure 4

Figure 5

b) Drive 1/4-inch screws or wall anchorsthrough the stabilizer bracket and into themounting surface. Do not install a screw in thebottom hole of the stabilizer bracket at this time.

c) Hang the unit on the stabilizer bracket,ensuring that the top mounting bracket isresting between the two tabs on thestabilizer bracket (Figure 5).

d) Align the elliptical hole in the bottommounting bracket and the bottom hole inthe stabilizer bracket and install a 1/4-inchscrew through it and into the mountingsurface.

e) Mounting hardware is not provided.

8.2 When the EDC will be mounted onto autility pole:

a) Secure the stabilizer bracket to the poleusing 1/4-inch screws. Do not install a screwin the bottom hole of the bracket at this time.

b) Hang the EDC on the stabilizer bracket,ensuring that the top mounting bracket isresting between the two tabs on thestabilizer bracket.

c) Line up the elliptical hole in the bottommounting bracket with the bottom hole inthe stabilizer bracket and drive a 1/4-inchscrew through the brackets and into theutility pole.

d) Mounting hardware is not provided.

8.3 To rack mount the unit, a universal rack-mount kit (ordered separately) is required.Remove the stabilizer bracket and followinstructions supplied with the rack-mount kit.

8.1 When wall-mounting is desired,

a) Remove the stabilizer bracket (Figure 4).

Page 5SRP-003-545 • Issue 4 • July 2004

1) Wrap a section of clamp material aroundthe cable to determine the length needed for one full wrap.2) Use side cutters to cut the clamp material so that it ends up one section shorter than this length.

3) Place the cut length of clamp material 5 cm (2 inch) from the end of the cable sheath.4) Install a hose clamp over it, covering asmany holes as possible. Hand tighten with aslotted screwdriver or a 5/16-inch driver.5) Wrap the sheath retention assembly withvinyl tape. (Shown without vinyl tape forclarity)

Armored cable requires a ground clamp.

12

34

2 in.

Cut a slit into opposite sides of the outer sheathand armor about 5 cm (2 inches). To do this, scorethe armor with a cable knife (being careful notto damage the inner sheath) and split thesheath by flexing it.

Position the grounding clamp base plate underthe armor. The stops of the clamp should just touch the outside of the armor and sheath. Tap the sheath above the ground clamp base to set the teeth.

Stop

Base Plate

Position the top plate and lock nut on theouter sheath over the base plate. Tighten witha 10 mm (3/8 inch) wrench so that the teeth onthe upper plate are driven into the sheath.Tighten the assembly with a 10 mm (3/8 inch)wrench.

Stop

Base Plate

Top Plate

Wrap the grounding connector and splitportion of the sheath with a few wraps of vinyltape. Vinyl Tape

3.0 cm (1.2 in.)

9. Preparing Cable9.1 Route the incoming distribution (feeder)cable through the fitting on the left at the baseof the unit.

9.2 Perform cable sheath removal steps perinstructions for the type of cable beinginstalled. Cut the cable to 3 meters (10 feet)inside the unit.

NOTE: Do not expose the bare fiber until you areready to terminate it.

Figure 6

9.3 Install a sheath retention clamp onto thecable sheath as illustrated in Figure 6. If anarmored cable is used, install the ground clampbefore installing the sheath retention clamp.

9.4 Armored cable (metallic cable sheath)should be grounded using a ground clamp(Figure 7).

Figure 7

Page 6 SRP-003-545 • Issue 4 • July 2004

Central Member

Buffer Tubes

Yarn

Bracket

9.5 Secure the cable to the sheath retentionbracket using cable ties. Make sure the tabs onthe clamp material are in the recessed section ofthe bracket (Figure 8).

Figure 8

Figure 9

9.6 When central member strain-relief isrequired, the central member bolt must beinstalled into the strain-relief bracket as shown(Figure 9).

NOTE: Smaller diameter central members requirea shim to make sure they are adequately secured inthe central member clamp. Use a central memberclamp shim when necessary (Figure 10).

a) Remove the bracket from the housing.

b) Install the U-shaped washer as shown inFigure 9.

c) Loosely install the hex nut.

d) Use two nylon nuts to install the bracketinto the housing.

e) Insert the central member of the cablebetween the bracket and the U-shapedwasher.

f) Arrange the buffer tubes to ensure clearancearound the central member clamp assemblyand hardware.

g) Tighten the hex nut.

h) Install the two flat washers.

i) Loosely install the other hex nut.

j) Wrap the strength member yarn in aclockwise direction around the bolt andbetween the flat washers.

k) Tighten the second hex nut.

l) Trim off the excess yarn and centralmember.

NOTE: The exposed length of the central member(after strain-relief) is to be less than or equal to 6.5cm (2 1/2 inches) between the U-shaped washer andthe end of the cable sheath.

9.7 When cable grounding is necessary, ahardware ground kit (purchased separately) isrequired. Install the ground kit as shown inFigure 11.

Figure 10

Figure 11

Insert the central member into the hole in the shim.If the central member does not fit in the hole, discardthe shim.If the central member passes through the hole, the shimis required to secure the central member.Position the shim between the U-shaped washer and thebracket

Shim

ShimCentral Member

Central Member

U-Washer

Page 7SRP-003-545 • Issue 4 • July 2004

10. Connector Panels10.1 LANscape connector panels (Figure 12)are generally shipped separately with connectoradapters installed.

10.2 If fibers are not already connectorized,install connectors onto the fibers using pigtailsplicing or direct connectorization permanufacturer’s instructions. If installing BTFkits, proceed to section 12.

Figure 12

Figure 13

Figure 14

SpliceTrayHolder

SpliceTrayHolderBracket

NOTE: Pigtails are fiber optic cables withconnectors on one end which are installed intoconnector panels. The other end is terminated in asplice tray.

10.3 Remove the splice tray holder from thehousing (Figure 13).

10.4 Install connectors into the appropriatepanels (Figure 14).

Buffer Tubes

Pigtail

Page 8 SRP-003-545 • Issue 4 • July 2004

Plunger

Housing

Fingers

Pull the plunger fastenerout all the way so thatthe fingers collapse.

Position the fastener into the mounting holes in the housing.

Push the plunger in to expand the fingers and lock the unit to the housing.

To remove the unit, pull the plungers out.

CAUTION: The connector is a delicate device.Obey the following precautions. Damage to thesurface of the connector will make it unusable:

• Use a clean tissue soaked in alcohol togently clean the connector. Do not pressheavily on it as you clean.

• Dry the connector prior to installation withcompressed air or a dry tissue.

• Clean all areas that will contact theconnector adapter.

• Do not force the connector into thereceptacle. If the connector does not fiteasily into the receptacle, back it out andreinstall.

• Install threaded connectors into the adapterand tighten. Do not OVERTIGHTEN. Donot allow the connector body (ferrule) toturn as you screw it into place. This causesthe surfaces to grind against each other.

10.5 Remove the blank connector panels fromthe unit (Figure 15). Install the loadedconnector panels into the connector supportbracket (Figure 16).

10.6 Repeat for all required panels.

Figure 15

11. Splicing11.1 The unterminated ends of pigtails arespliced to buffered fibers in a splice tray(Figure 14). Prepare the buffer tubes forsplicing.

a) Route three complete loops of fiber aroundthe radius guides in a counterclockwisedirection. The radius guides are divided intothree sections. Begin routing from the backsection and work your way forward witheach loop in a different section of the guide.

b) Reinstall the splice tray holder and installone of the splice trays you will be using.

c) Place ALL the buffer tubes as they will lieafter installation and mark the cable 2 cm(3/4 inch) from where it will enter the cornerof the splice tray as shown in Figure 17.(This is where the buffer tube will beremoved.)

d) Refer to the instructions provided with thesplice tray to determine the appropriatelength of fiber required in the tray. Measurefrom the first mark toward the end of thebuffer tubes and mark the buffer tubes.

e) Trim the excess buffer tube beyond thesecond mark.

f) Remove the splice tray and the coiled buffertubes.

g) Remove the buffer tubes to the markedpoint (plus the length needed inside thetray). Strip and clean the fibers according tothe cable manufacturer’s instructions.

Figure 16 Figure 17

Page 9SRP-003-545 • Issue 4 • July 2004

11.2 Prepare the pigtail for splicing in the samemanner.

11.3 Work on one splice tray at a time. Bringboth pigtails and buffered fibers to a convenientsplicing area - one pair at a time. Secure thesefibers to the same corner of the splice tray.

IMPORTANT: When securing 900 µm fiber tothe splice tray, 1.5 inches of electrical tape aroundthe sheath as protection for the 900 µm fiber isrecommended. Feed a cable tie through the strain-relief holes in the corner of the splice tray. Carefullytighten the cable tie around the tape-wrappedportion of the fibers to secure the fibers to the tray.DO NOT tighten the cable tie too tightly.

11.4 Splice fibers as described in instructionsfor the splicing method you are using.

11.5 As you complete a splice, label theconnector end of the pigtail with its portidentifier. Record information appropriately onthe record label inside the front door(Figure 18).

11.6 Repeat for all required splice trays.

NOTE: Accurate record keeping is imperative foran organized installation.

Figure 18

Figure 19

11.7 Place the spliced trays into the holder asshown in Figure 19. The fibers exiting the traysare positioned around the radius control guide.Secure the trays to the holder using theprovided hook-and-loop strap.

11.8 Once all splicing is complete, route allbuffer tubes (beginning at the cable sheathopening) and pigtails (starting at the connectorpanels) counterclockwise around the radiusguides (Figure 20).

Figure 20

Page 10 SRP-003-545 • Issue 4 • July 2004

SpliceTrayHolder

SpliceTrayHolderBracket

a) Place pigtails on the outside of the loopsand the buffer tubes closest to the guides.

b) Make sure the fiber from the connectorboot is not pulled too tightly and the bendradius is not violated.

c) The first loop should be in the back sectionof the radius guides and each successive loopshould be in the section above the previousloop.

d) At the third loop, reinstall the splice trayholder and trays (Figure 21).

NOTE: Cable ties can be loosely attached toorganize the coils of buffer tubes and pigtailassemblies.

Figure 21

Figure 22

12. Installing Fan-outs12.1 Fiber optic cable can be installed usingBTF kits (ordered separately).

12.2 Slide the splice tray holder toward the topof the housing and remove it. Remove the splicetray holder mounting bracket also (Figure 22).(The fan-out bracket is underneath it.)

Page 11SRP-003-545 • Issue 4 • July 2004

12.3 Route the buffer tubes around the radiusguides three times in a counterclockwisedirection. Mark the location of the fan-outbracket on the buffer tubes as shown inFigure 23 to determine the length required.

12.4 Install fan-out assemblies and connectorsaccording to the instructions provided with theBTF kits.

12.5 Route the buffer tubes around the radiusguides and secure the fan-out assemblies to thefan-out bracket as shown using a cable tie(Figure 24).

Figure 23

Figure 24

Figure 25

12.6 Route the connectorized fan-out tubingaround the guides and plug connectors into theconnector panel (Figure 25). Refer to theprevious connector care caution to avoiddamaging the connectors during installation.

12.7 Label the connector end of the pigtailwith its port identifier. Record informationappropriately on the record label inside thefront door (Figure 18).

IMPORTANT: Accurate record keeping isimperative for an organized installation.

NOTE: The splice tray holder and its mountingbracket should be reinstalled to allow future splicingcapabilities.

13. Installing Drop Cable13.1 The EDC is designed to accept up to sixdrop cables. Feed 3 meters (10 feet) of dropcable through the fitting you installed on theright at the base of the closure.

1) Route three complete loops of the subunitaround the radius guides (Figure 28).

2) Match the subunits to the correspondingpanels and simulate how they will lie.

3) Mark the length on the subunit and trim thecable to this length.

13.2 Gently secure cable with no centralmembers to the bracket using cable ties.

Page 12 SRP-003-545 • Issue 4 • July 2004

13.3 When central member strain-relief isnecessary, remove the drop cable strain-reliefbracket and secure the cable to the bracketusing a cable tie as shown (Figure 26).

a) Install the 8-32x5/8 screw from the front sideof the strain-relief bracket through the flatwasher and U-shaped washer. Looselyinstall the hex nut.

b) From the front side of the strain-reliefbracket, wrap the strength member yarn in aclockwise direction around the screw andunder the U-shaped washer (Figure 27).

c) Insert the central member of the cablebetween the flat washer and the U-shapedwasher (Figure 27).

d) Tighten the hex nut.

e) If the central member is metallic, place theeye of a ground wire (#6 AWG, purchasedseparately in appropriate length from anyelectrical supply store) under the U-shapedwasher or under the flat washer.

f) Trim off the excess yarn and centralmember.

g) Reinstall the strain-relief bracket.

NOTE: The exposed length of the central member(after strain-relief) is to be less than or equal to 6.5cm (2 1/2 inches) between the U-shaped washer andthe end of the cable sheath.

Figure 26

Figure 27

Figure 28

13.4 Route cable around the guides as shown inFigure 28 and plug in connectors. Refer to theconnector installation instructions in Section 10and the fiber precautions in Section 3 to avoiddamaging the cable during installation.

Central Member

Strength-Member Yarn

U-Shaped Washer

Page 13SRP-003-545 • Issue 4 • July 2004

14. MaintenanceThe unit requires very little maintenance tomake sure fibers and parts remain in goodcondition.

Loose Parts: Check nuts, bolts and screws forlooseness and tighten.

Moisture: Check the housing for accumulatedmoisture and place moisture absorbentpackets as needed.

Fiber Bends: Check fiber optic cable to makesure bends do not exceed the minimum bendradius. Check cable for unnecessary strain.Check cable entries and exits for crimpingor crushing.

Documentation: Check record label to makesure it is clear and accurate.

15. SpecificationsThe unit weighs 6.9 kg (15.2 lb).

21 cm

(8.3 in.)

37 cm

(14.5 in.)

42 cm

(16.5 in.)

Corning Cable Systems reserves the right to improve, enhance and modify the features and specificationsof Corning Cable Systems’ products without prior notification. Discovering Beyond Imagination is atrademark of Corning Incorporated. LANscape is a trademark of Corning Cable Systems Brands, Inc. Allother trademarks are the properties of their respective owners. Corning Cable Systems is ISO 9001certified.© 1999, 2000, 2004 Corning Cable Systems. All rights reserved. Published in the USA.p/n 003-545 / July 2004

Customer Service—US or Canada: 1-800-743-2671International: +1-828-901-5000Fax: +1-828-325-5060

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

http://www.corning.com/cablesystems