8430 Wall Mount Patch Panel

Instructions

September 1997

34-7042-5639-4-A

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Contents

1.0

2.0

3.0

4.0

5.0

6.0

Description ......................................................................................................................................... 3

Parts .................................................................................................................................................... 4

Assembly ............................................................................................................................................ 4

Mounting Patch Panel ........................................................................................................................ 6

Field Cable Preparation and Placing .................................................................................................. 6

Fiber Layout ....................................................................................................................................... 7

7.0

8.0

Pigtail Layout and Splicing ................................................................................................................ 8

Routing of the Cable Assemblies ....................................................................................................... 8

9.0

Connection of ST*, Push-Pull ST*, SC and FC Connectors ............................................................. 11

10.0

Securing the Patch Panel .................................................................................................................... 12

11.0

Right Side Cable Entry....................................................................................................................... 12

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1.0 Description

1.1

The Wall Mounted Patch Panels are designed to provide the essential interface between fiber optic multiple fiber cable and optical equipment installed on the customer’s premises. The units offer networking and fiber distribution from the vault or wiring closet to the user’s terminal equipment.

Three units are available:

A) The 8432 is configured for 12 port capacity, but can be expanded to accommodate two plates of 6 or 8 couplings each.

B) The 8434 is configured for 24 port capacity, but can be expanded to accommodate four plates of 6 or 8 couplings each.

C) The 8436 is configured for 36 port capacity, but can be expanded to accommodate six plates of 6 or 8 couplings each.

The Patch Panels can also be used as a “breakout boxes” for a building riser fiber cable to distribute fiber cable to each floor. Tight buffered cable must be used in this application.

A B C

The Patch Panels can also be used as a “splice-through” box to house splices in a wiring closet.

The Patch Panels are divided into two separate sections for security. The left side is used for the riser or outside plant cables entering the building, pigtails and pigtail splices. The right side is used for internal cable assembly networking. There is a door on both sides. Each door is secured with a quarter turn latch.

Each door may be locked separately with a padlock for security. Because of this feature, the Patch Panel may also be used as a fiber interface between a common carrier and its customer.

Coupling plates may be ordered to accommodate ST*, Push-Pull ST*, SC and FC connectors.

Coupling plates, complete with the couplings, are purchased separately as patch panels are sold empty.

Coupling plates, pigtails, and cable assemblies may be ordered with the Patch Panel and shipped concurrently.

1.2

Definitions of terms used herein:

A coupling is a device that is used to couple two fiber connectors together. This is firmly mounted into the coupling plate of the distribution unit.

The connector is the device mounted on the end of the fiber which is plugged into the coupling to create a semi-permanent or remateable lightwave path between two fiber ends. The field fiber will terminate in a connector through a pigtail or by direct termination on the fiber.

DANGER: Fiber ends and unmated connectors may emit invisible laser/LED radiation. Avoid direct eye exposure to the beam. Do not inspect with magnifying instruments.

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2.0 Parts

Housing Unit w/Removable Doors

Cable Clamp

Central Strength Member Clamp

Machine Screw 8 x 32 x 3/8”

Nut, Kep 8 x 32

Flat Washer

Fiber Retention Clips

Mounting Screws #8 x 3/4”

Label, Danger, Laser Light

8432

1

9

1

1

4

2

1

1

1

8434

1

9

1

1

4

2

1

1

1

2.1

Suggested Tools And Supplies (Not Furnished)

• Cable cutter to cut cable.

• Cable sheath slitting tool.

• Stripping tool to strip loose tube around fibers.

• Large cutting pliers for central strength member.

• Solvent and rags to clean waterproof gel from fibers and tubes.

• Microscope to view end of fiber when terminating connectors directly on the fiber.

• Splicing kits and supplies.

• Reagent grade isopropyl alcohol to clean connectors and couplings.

• Cotton swabs to apply alcohol.

• Source of dry air. (Can be obtained in pressurized cans).

• Cable ties to secure field cables and cable assemblies.

2.2

Optional Parts

• 2521-FL Fibrlok

™

Splice Insert

• 2-Sided Mounting Tape

• 2521-MF Multifiber Fibrlok ™ Splice Insert

• 2521-F Fusion Splice Insert

• 2674 Multifiber Fibrlok

™

Splice Mounting Clips

8436

1

1

1

18

4

2

1

1

1

3.0 Assembly

3.1

Attach the cable clamp:

Open the doors by twisting the quarter turn latches.

Lift the open doors 1/4” (6 mm) and pull to the side to remove.

4

Slide the cable clamp through the tab nearest to the cable entry slot.

3.2

Attach the strength member clamp:

Use the nut, bolt and washer to attach the strength member clamp to the Patch Panel at the hole nearest the cable clamp. Insert the bolt from the back side.

3.3

Ready the splice chamber:

Install the fiber clips if needed, according to the sketches.

Install the splice organizer if used. Peel off the smooth protective cover on the bottom. Firmly press sticky side onto the proper place in the Patch Panel as shown in the sketches.

3.4

Install the coupling plates:

Coupling plates are packed separately.

Install the plates by sliding the bottom (with no mounting pins) into the shoulder of the frame. Secure top of plate with push button.

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4.0 Mounting the Patch Panel

8432

8434

8436

The dimensions of the Patch Panels are:

Width

15” / 381 mm

15” / 381 mm

15” / 381 mm

Height

9” / 229 mm

11” / 279 mm

18” / 457 mm

At least 2” (51 mm) additional space is required on each side to permit opening and removing the doors.

Attach to a plywood wall using the four screws provided.

For concrete walls, expansion inserts with wood screws can be used. For sheet rock, "Molly bolts" can be used.

Depth

3” / 76 mm

3” / 76 mm

3” / 76 mm

5.0 Field Cable Preparation and Placing

Note: Leave at least 5' (1.5 m) of field cable slack outside of the Patch Panel. In case a fiber is broken off inadvertently, the slack allows the cable to be pulled farther into the unit. Slack also allows for future rearrangements.

5.1

Prepare Field Cable:

Slit and install the oval cable entry grommet over the end of the field cable.

Strip approximately 4’ (1.2 m) of the cable’s outer sheath(s) exposing the buffer tubes and central strength member.

Cut back the central strength member leaving approximately 4 3/4” (12 cm) protruding from the cable’s outer sheath.

5.2

Strip all but 2” (51 mm) of the fiber’s loose tube:

A buffer tube cutter (not furnished) may be used to score the tube around the perimeter. Bend the tube back and forth gently to break it off. Don’t cut the tube enough to damage unprotected fibers inside.

5.3

Clean the fibers according to the cable maker’s procedures:

Note: Carefully follow safety, health, and disposal information on cleaning solvent label or Material Safety

Data Sheet.

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5.4

Insert the cable into the cable hole:

Insert the prepared cable and fibers through the oval cable port and position the cable clamp around cable.

Insert the central strength member into the central member clamp at the same time. Close the cable clamp onto the cable outer sheath (1/2” (13 mm) from the end of the sheath. Make sure the cable is held in place securely but not tight enough to compress the fibers.

5.5

Secure the central strength member:

Tighten the central strength member clamp screw to retain the central strength member.

6.0 Fiber Layout

6.1

If the field fibers are to be directly terminated using field mountable connectors, follow the instructions of the connector manufacturer.

6.2

If the field fibers are to be spliced to pigtails proceed to step 6.3.

6.3

Arrange the fiber in the clips. Make as many complete loops as the fiber will allow. Keep the fiber loosely wrapped inside the fiber clips. Cut the fiber so that it reaches the far side of the splice organizer.

Note: Fiber layout is at the discretion of the user or installer as long as the minimum bending radius is not violated. Suggested layouts for both the fiber and the pigtails and direct field termination are shown in the sketches.

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7.0 Pigtail Layout and Splicing

7.1

Select a Pigtail:

Use a 3 ft.-3 in. (1 meter) pigtail or cut a 6 ft. 6 in. (2 meter) jumper in half. Put a tag on the pigtail near the connector indicating the number of the fiber in the cable it is to be spliced to.

7.2

Trim the Pigtail to the Correct Length:

Holding the connector near the coupling it will be connected to, route the pigtail in the vacant clips.

Make as many complete loops as the length of the pigtail will allow. Keep the pigtail loosely wrapped inside the fiber clips. Cut the pigtail so that it reaches the opposite side of the splice organizer.

7.3

Splice the Field Fiber to the Pigtail:

The pigtail end and fiber must be stripped and cleaned for the splicing operation. Follow the splicing procedures of the splice manufacturer.

The optional splice organizers can store fusion or mechanical splices. When the splice is completed, route field fiber loosely in the fiber clips, and carefully lay the splice in the slot of the organizer. Route the pigtail loosely in the fiber clips and insert the connector as described in step 7.4 below.

7.4

Insert the Connector of the Pigtail into the Connector Coupling:

Remove the coupling’s dust caps and clean the inside with a lint free swab dampened with isopropyl alcohol.

Blow with dry air, replace right dust cap. Then remove the dust cap from the corresponding connector.

Clean the connector ferrule with a lint free cloth dampened with isopropyl alcohol. Blow with dry air.

Visually inspect the coupling for cleanliness. Insert the connector.

Note: Carefully follow safety, health, and disposal information on container label or Material Safety Data

Sheet for Isopropyl alcohol being used.

7.5 Perform Steps 7.1 through 7.4 for all remaining fibers and pigtails.

8.0 Routing of the Cable Assemblies

8.1

Select a cable assembly long enough to reach from the Patch Panel to the specified electronic equipment.

Apply tags to both ends of this cable assembly. The tag at each end should show the ultimate location of the other end and the same unique number on both ends. Feed the ends including the dust caps through the top or bottom ports of the Patch Panel to the optical equipment.

If cable assemblies have different types of connectors on each end, be sure that the proper connector is at the Patch Panel end.

Do not insert connectors into equipment at either end until the jumper is secured on the cable racks. Do not remove dust caps from either end of the cable assemblies until immediately prior to connection to the equipment. Secure the cable assemblies in the fiber clips along the right side of the Patch Panel.

Note: Pulling of cable assemblies (jumpers) through enclosed conduit is not advised. The connectors can be easily pulled off the fibers. The fiber can be stretched beyond its limit causing high lightwave loss or breaks. It is recommended that cable assemblies be laid in open raceways where possible. Many building codes require fire resistant jacketing on the fibers when laid in plenum ceilings.

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8432 12 Port Patch Panel (without splice)

8434 24 Port Patch Panel (without splice)

9

8434 24 Port Patch Panel with Splice Organizer

8436 36/48 Port Patch Panel (without splice)

10

8436 36/48 Port Patch Panel with Splice Organizer

9.0 Connection of ST*, Push-Pull ST*, SC, FC Connectors

9.1

Swivel the Patch Panel’s bulkhead:

Grasp the left-hand padlock hasp and apply pressure toward the cable side of the housing. This will cause the bulkhead, (or partition) to rotate exposing the front side of the couplings.

9.2

Connect the selected Cable Assembly to the Coupling:

Remove the dust cap from Patch Panel end of the cable assembly. Clean the connector with Isopropyl alcohol and blow dry. Inspect for cleanliness. Insert the clean connector into the coupling. If couplings have key slots, be sure to engage the key of the connector in the slot before threading the connector into the coupling.

9.3

Return the Bulkhead to Resting Position:

The door for this compartment will not close until the bulkhead has been returned to the normal position.

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straight

10.0 Securing the Patch Panel

10.1

Check Fibers, Pigtails, and Jumpers for possible macrobending:

10.2

Record fiber assignments and termination points on the fiber assignment charts: These charts are found on the inside of the right and left doors. Use only a permanent marker.

10.3

Install and Secure the Patch Panel Doors:

The doors are secured with quarter turn latches. Close the doors, align the holes and rotate the latch. Unit is now secured. There is also a hasp for a padlock.

11.0 Right Side Cabel Entry (Inverted Mounting)

In some circumstances, it may be advantageous to mount the unit in the inverted position to permit right side cable entry. The Patch Panel is designed to permit mounting in the inverted position with a minor adjustment. The adjustment secures the doors and prevents their removal when the unit is inverted. No additional materials are required.

The following procedure secures the doors:

11.1

Open both doors.

11.2

Loosen door stop retainer screws located on the upper right and left corners of the cabinet.

11.3

Rotate metal plates (door stops) 90 degrees to position them against the edge of the upper door hinge.

11.4

Secure retainer screws.

11.5

Rotate the cabinet 180 degrees.

11.6

Apply decals provided.

11.7

Install unit.

Important Notice

All statements, technical information and recommendations related to the Seller's products are based on information believed to be reliable, but the accuracy or completeness thereof is not guaranteed. Before utilizing the product, the user should determine the suitability of the product for its intended use. The user assumes all risks and liability whatsoever in connection with such use.

Any statements or recommendations of the Seller which are not contained in the Seller's current publications shall have no force or effect unless contained in an agreement signed by an authorized officer of the Seller. The statements contained herein are made in lieu of all warranties, expressed or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose which warranties are hereby expressly disclaimed.

SELLER SHALL NOT BE LIABLE TO THE USER OR ANY OTHER PERSON UNDER ANY LEGAL THEORY, INCLUDING BUT NOT

LIMITED TO NEGLIGENCE OR STRICT LIABILITY, FOR ANY INJURY OR FOR ANY DIRECT OR CONSEQUENTIAL DAMAGES

SUSTAINED OR INCURRED BY REASON OF THE USE OF ANY OF THE SELLER'S PRODUCTS THAT WERE DEFECTIVE.

Telecom Systems Division

6801 River Place Blvd.

Austin, TX 78726-9000

Recycled paper

50% pre-consumer

10% post-consumer

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Litho in USA

© 3M 1997 34-7042-5639-4-A