2178-XL - Uncategorized 3M - Free user manual and instructions

Product Type	Fiber Optic Splice Closure
Model	2178-XL and 2178-XL/FR (Flame Retardant)
Brand	3M
Capacity (Single Fusion Splices)	Up to 576
Capacity (Mass Fusion Splices)	Up to 1728
Port Configuration	Two 1.0" and two 1.4" ports per end
Kit Contents (Main)	Closure body, strain relief brackets, washer trees, plugs, cable ties, dual lock fasteners, rubber splicing tape, silicone lubricant, hose clamps, sheath scuff, tray support, splice trays, tape collar gauge, K-connectors
Flame Retardant Option	Yes (2178-XL/FR)
Cable Preparation	Sheath removal, strength member attachment, tape collar build-up
Sealing Method	Gasket with silicone lubricant, bolted cover
Torque Specification (Cover Bolts)	240 in-lbs (2178-XL) / 50 in-lbs (2178-XL/FR)
Maximum Test Pressure	10 PSI
Compatible Splicing Trays	3M Splice Tray 2527 (included)
Cable Addition Kit	2181-XL and 2181-XL/FR (optional)
Accessories	Ground isolation kit, aerial hanger, wall mount bracket, fanout kit, multi-port grommets, cable fanout kits, shield bond connectors
Warranty	1 year from purchase
Applications	Fiber optic splicing for telecommunications, FTTH, and network closures

Frequently Asked Questions - 2178-XL 3M

What is the maximum splice capacity of the 3M 2178-XL closure?

The 2178-XL can accommodate up to 576 single fusion splices or 1728 mass fusion splices using larger trays designed for ribbon fibers.

What port sizes does the 2178-XL have?

Each end of the closure has two 1.0-inch ports and two 1.4-inch ports, providing flexibility for different cable diameters.

How do I prepare cables for installation?

Remove the sheath, clean the fibers, scuff 6 inches of sheath, attach a strength member bracket if applicable, build a tape collar using Scotch® Linerless Rubber Splicing Tape 130C, and lubricate the collar before inserting into the port.

What torque should I tighten the closure bolts to?

For standard 2178-XL, torque all bolts to 240 in-lbs. For the flame retardant version (2178-XL/FR), torque to 50 in-lbs.

Can I add cables after initial installation?

Yes, use the 3M Cable Addition Kit 2181-XL or 2181-XL/FR which includes an adapter, gasket, and additional components to expand the closure.

What is the recommended sealing procedure?

Coat all gasket surfaces with silicone lubricant, place the cover on the base, hand-start all bolts, then torque in the sequence shown in Figure 28 to the required value.

How do I install drop cables?

Prepare the drop cables, insert them into a 3M Multiport Grommet, lubricate the grommet, and secure with cable ties. Use blank plugs for unused ports.

What accessories are available for the 2178-XL?

Accessories include the External Ground Isolation Kit 2178-EGI, Universal Aerial Hanger Kit 2183-UHB, Wall Mount Bracket 2198, Cable Fanout Kits 2519/2519-X, and various multi-port grommets.

Is the closure suitable for aerial or underground use?

The closure can be used in aerial, underground, and buried applications when properly sealed and mounted with appropriate brackets and accessories.

How do I test the closure for leaks?

Pressurize the closure to a maximum of 10 PSI and check for leaks using a pressure gauge or soap solution. Release pressure after testing.

USER MANUAL 2178-XL 3M

3M™ Fiber Optic Splice Closure

2178-XL & 2178-XL/FR

3M™ Cable Addition Kit 2181-XL and 2181-XL/FR

Instructions

1.0 Contents

1.0 General....3
2.0 Kit Contents ....3
3.0 Cable Preparation....4
4.0 Drop Cable Preparation....8
5.0 Tray Installation and Splicing....11
6.0 Splice Closure Assembly 12
7.0 3M™ Cable Addition Kit 2181-XL and 2181-XL/FR .....12
8.0 Closure Accessories 13

1.0 General

1.1 The 3M ^™ Fiber Optic Splice Closure 2178-XL and Flame Retardant Splice Closure 2178-XL/FR have been developed to accommodate up to 576 single fusion splices and 1728 mass fusion splices. The closures have two 1.0" ports and two 1.4" ports on each end. New larger trays have been developed, providing more room for ribbon fibers and splices.

2.0 Kit Contents

Visually inspect all components. If any component is missing or appears damaged, do not install. Call customer service at 1-800-426-8688 for a replacement product.

2.1 3M ^™ Fiber Optic Splice Closure 2178-XL and 2178-XL/FR kit contents:

a) 1 - 2178-XL closure body with bolts

b) 4 - Strain relief/strength member brackets

c) 4 - 1.4" washer trees

d) 4 - 1" washer trees

e) 4 - 1.4" plugs

f) 4 - 1" plugs

g) 8 - Cable ties (blue)

h) 8 - Cable ties (green)

i) 4 - 3M ^™ Dual Lock ^™ Fasteners

j) 2 - Rolls Scotch® Linerless Rubber Splicing Tape 130C

k) 4 - Packets of silicone lubricant

1) 4 - 1.5" hose clamps

m) 1 - Sheath scuff

n) 1 - Tray support with straps

o) 2 - 3M ^® Splice Trays 2527 with inserts

p) 1 - Tape collar gauge

q) 8 - K-connectors & screws

2.2 3M ^™ Cable Addition Kit 2181-XL and 2181-XL/FR Kit Contents

a) 1 - 2181-XL and 2181-XL/FR adapter with gasket
b) 2 - Sheath retention inserts
c) 4 - 1" washer trees
d) 4 - 1.4" plug
e) 8 - Cable ties (blue)
f) 8 - Cable ties (green)
g) 4 - 1.4" washer trees
h) 2 - Roll Scotch® Linerless Rubber Splicing Tape 130C

i) 4 - Packet of silicone lubricant
j) 2 - 1" hose clamps
k) 1 - Sheath scuff
1) 18 - Bolts
m) 1 - Tape collar gauge
n) 4 - 1" plugs
o) Slack storage retainers

2.3 Additional materials required:

For armored sheath cable, use 3M ^™ Scotchlok ^™ Shield Bond Connector 4460-D/DS. To branch splice in unused ports, order 3M ^™ Cable Strain Relief/Strength Member Bracket 2178-XL-XSB-SR-SMC, part no. 80-6113-2343-9.

3.0 Cable Preparation

3.1 Determine amount of cable needed for storage and splicing.
3.2 Remove sheath and clean fiber per company practice.
3.3 Scuff 6" of cable sheath, starting at end of sheath.

Close-up of a black cable with exposed insulation and insulation sheath, showing internal structure (no text or symbols)

Figure 1

3.4 Cut a small length of the unused sheath scuff and place it grit side inward inside of the hose clamp.

Note: The cut piece of sheath scuff should wrap at least halfway around the cable sheath, but not completely around the cable.

3.4.1 Place cable retention clamp on cable so that hose clamp will be 1" (25 mm) from end of sheath.
3.4.2 If cable has central strength member, assemble strength member clamp onto strain relief bracket as shown in Figure 2. Mark and cut the central strength member at end of strength member clamp. Slide central strength member under retention lug and tighten bolt to 40 in-lbs ± 5 in-lbs (4.6 N•m ± 0.6 N•m). Install hose clamp and tighten to 40 in-lbs ± 5 in-lbs (4.6 N•m ± 0.6 N•m).
3.4.3 If cable has no central strength member, break off the three prongs using pliers and use only the strain relief bracket as shown in Figure 3.

Close-up of a mechanical clamp with metal components and a close-up inset showing a clamp attachment (no visible text or symbols)

Figure 2

Close-up of a hand using a metal pliers to cut a piece of wire (no text or symbols visible)

Close-up of a hand holding a metal tool with two circular holes (no text or symbols visible)

Figure 3

3.4.4 Install hose clamp and tighten.

Close-up of a mechanical device with metallic components and a coiled cable (no visible text or symbols)

Figure 4

3.4.5 For armored cables (Figure 5), use 3M ^TM Scotchlok ^TM Shield Bond Connector 4460-D or 4460-DS.

Close-up of a cable with exposed copper wires and a metallic connector (no text or symbols visible)

Close-up of a twisted cable with metal clamps and braided ends (no text or symbols visible)

Figure 5

3.5 Place retention clamp into place in the closure and mark location of gasket edges on cable. This will be the area of the tape collar, as shown in Figure 6.

3.6 Determine the diameter of the scuffed area of the cable and choose two (2) appropriately sized washers for each cable. Washer inner diameters should be as close to the diameter of the cable as possible. Washers may be split and placed onto cable.

3.6.1 If diameter of cable is close to either end of the marked washer diameter range try both sizes and choose the snuggest fit available.

For example, if cable diameter measures 1.12," try both the 1.0-1.1 and 1.1-1.2 marked washers. Select the washer with the snuggest fit around the cable diameter, allowing the washer to close at the split.

3.7 Split washers and place onto cable on either side of the area marked for tape collar build up, as shown in Figure 7.

3.8 Using the supplied Scotch ^ Linerless Rubber Splicing Tape 130C, build up the collars to the appropriate diameter.

3.8.1 Stretch tape slightly to fit between marked collar area as best as possible.

Close-up of a mechanical assembly with metal components and a measuring tool (no visible text or symbols)

Figure 6

Close-up of a black cylindrical pipe fitting with flanged ends, no visible text or symbols

Figure 7

Close-up of a hand holding a black cable with a metallic ring attached, against a white background (no text or symbols visible)

Figure 8

3.8.2 Collars should be built up to 1.45" diameter for large port and 1.05" diameter for the smaller port. Use the tape collar gauge provided in kit to measure for required diameter.

3.9 Coat tape collar with silicone lubricant and insert into gasket at the proper port. Insert cable retention clamp into slot at same time and push down until cable is in proper alignment.

Note: Insure that washers are properly seated in the grooves of the case on either side of the gasket.

Note: Carefully follow health and safety environmental instructions as given on Material Safety Data Sheet for the silicone lubricant.

3.10 Using two (2) black cable ties, retain cables in ports by placing ties both inside and outside the base as shown in Figure 11 and 12. (White cable ties used for picture clarity only.)

Close-up of a hand holding a black pipe fitting with a white plastic clip, no visible text or symbols

Figure 9

Figure 10

Close-up of an electric motor with visible wiring and cooling fins (no text or symbols)

Figure 11

Close-up of a mechanical assembly with a cylindrical component and clamped parts (no visible text or symbols)

Figure 12

4.0 Drop Cable Preparation

4.1 Determine how many drop cables will be passing through 3M™ Multiport Grommet.
4.2 Remove sheath on drops exposing buffer tubes to a length required per company practice.
4.3 Insert drops into multiport grommet first and then insert blank plugs last.

Note: A small amount of lubricant provided in kit may be placed on blank plugs and cable to allow for ease of installation into multiport grommet.

An additional method to ease installation is to take sheath scuff supplied in closure kits, and slightly sand the leading edge of the drop cable and blank plugs.

4.4 Grease approximately 2" of cable drop jacket.
4.5 Insert drop 1"-2" into multiport grommet and then pull back out.
4.6 Insert drop the entire length of multiport grommet.
4.7 Repeat steps 4.3–4.6 for the blank plugs as well.

Note: Leave future ports orientated to top of closure for ease of future installations of drop.

4.8 Place a small amount of lubricant on the gasket inside diameter in the area where it seals with multiport grommet.

Note: Carefully follow health and safety environmental instructions as given on Material Safety Data Sheet for the silicone lubricant.

4.9 For ribbon transition to tray applications, secure the transition tube to the bracket mounted in base.

Close-up of a hand holding a cylindrical mechanical component with a pen inserted (no visible text or symbols)

Figure 13

Close-up of a gloved hand holding a small electronic component with a tool, no visible text or symbols

Figure 14

Close-up of a mechanical assembly with coiled white cables and mounting brackets (no visible text or symbols)

Figure 15

4.10 When tray support and tray are in place, mount the other end of the transition tube to the tray.

Close-up of a white cable with a grid-patterned component attached to a metal frame (no visible text or symbols)

Figure 16

4.11 Break off the tab feature as shown on both cable strain relief brackets.

Close-up of a hand using pliers to cut metal parts (no text or symbols visible)

Figure 17

4.12 Place cable strain relief brackets on either side of the grommet, with three drops on either side as shown. Insert cable strength members into small K-connectors.

Close-up of a mechanical device with metallic components and a central shaft (no visible text or symbols)

Figure 18

4.13 Secure cable strain relief brackets and the strain relief bracket from the closure to the grommet with the hose clamp as shown. Tighten the hose clamp to 40 in.-lbs. ± 5 in.-lbs. (4.6 N•m ± 0.6 N•m).

Note: Ensure that extruded retention feature of strain relief has sufficient contact with surface of grommet.

Close-up of a hand using a tool to adjust or install a mechanical component, no visible text or symbols.

Figure 19

4.14 Tighten the six K-connector nuts to 40 in.-lbs. ± 5 in.-lbs. (4.6 N•m ± 0.6 N•m) each.

Close-up of a robotic arm connecting mechanical components with a tool (no visible text or symbols)

Figure 20

4.15 Place cable strain relief and 3M ^™ Multiport Grommet assembly into closure.
4.16 Place cable ties around multiport grommet assembly inside and out as shown in Figure 21.

Note: White cable ties are shown for clarity.

4.17 Follow closure instruction for all other preparation leading up to and including sealing closure.

Close-up of mechanical components with visible springs and connectors (no text or symbols)

Figure 21

5.0 Tray Installation and Splicing

5.1 Once cables have been anchored, place tray support in position and tighten two (2) screws.
5.2 Remove liner. Place two pieces of 3M™ Dual Lock™ Fastener on tray support, as shown. Mate second two pieces of fastener to the attached pieces. Remove liner from back of top pieces and attach first tray. (See Figure 22)

Close-up of a black plastic electronic component with metal brackets and mounting holes (no visible text or symbols)

Figure 22

5.3 Route the fibers into the tray. Secure buffer tube with cable tie. (See Figure 23)

5.4 Splice per company practice.

Close-up of a mechanical component with clamps and a curved surface (no visible text or symbols)

Figure 23

6.0 Splice Closure Assembly

6.1 Coat all gasket surfaces with a light application of silicone lubricant to aid in gasket sealing.

Note: Carefully follow health and safety environmental instructions as given on Material Safety Data Sheet for the silicone lubricant.

6.2 Place cover on base and hand start all bolts. Using tightening sequence (Figure 28), torque all bolts to 240 in-lbs. Torque -FR Closures to 50 in./lbs.

6.3 Closure may be flash tested by pressurizing closure to a maximum of 10 PSI. Check for leaks and then release air pressure.

Figure 24

7.0 3M ^TM Cable Addition Kit 2181-XL/XLFR

7.1 Follow steps 3.0–4.0 to prepare cables.

7.2 The tray support can be installed in either the 3M ^™ Fiber Optic Splice Closure 2178-XL or 2178-XL/FR or the 2181 adapter. Install the tray support onto the desired level by placing it into the slots on the closure base or adapter and tightening the screws until snug.

7.3 Install the 2181 adapter between the halves of the 2178 closure using the longer bolts included with the adapter. Follow step 6.0 for assembly.

8.0 Closure Accessories

Product photo of a black mechanical valve with coiled tubing and various small components (no visible text or symbols)

3M™ External Ground Isolation Kit 2178-EGI

Collection of metal bracket components and bolts on a plain background (no text or symbols visible)

3M™ Universal Aerial Hanger Kit 2183-UHB

Exterior view of two metal bracket components with metal hardware and mounting brackets (no text or symbols visible)

3M™ Wall Mount Bracket 2198

Close-up of a Super Silicone Soldering tool and plastic components on a plain surface (no text or symbols visible)

3M™ Cable Fanout Kit 2519 and 2519-X

Collection of mechanical components including a cylindrical component, bracket, and multiple parallel rods (no text or symbols visible)

3M™ 4-Port Grommet 2178-4PGA

Collection of mechanical clamping tools and components laid out on a white surface (no text or symbols visible)

3M™ 6-Port Grommet 2178-6PGA

Collection of mechanical parts including rings, clips, and tools (no visible text or symbols)

3M™ Cable Branch Port Kit 2178-XL-XSB 3M

Disassembled electronic component with multiple connectors and housing (no visible text or symbols)

™ Fiber Optic Splice Tray 2543 3M

Close-up of a damaged cable with exposed metal clamps and insulation (no text or symbols visible)

™ Scotchlok™ Shield Bond Connector Assembly 4460-D/FO

3M, Dual Lock and Scotchlok are trademarks of 3M Company. Scotch is a registered trademark of 3M Company.

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All statements, technical information, and recommendations related to 3M's products are based on information believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Any statements related to the product which are not contained in 3M's current publications, or any contrary statements contained on your purchase order shall have no force or effect unless expressly agreed upon, in writing, by an authorized officer of 3M.

Warranty; Limited Remedy; Limited Liability.

This product will be free from defects in material and manufacture for a period of one (1) year from the time of purchase. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above, your exclusive remedy shall be, at 3M's option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable for any indirect, special, incidental or consequential loss or damage arising from this 3M product, regardless of the legal theory asserted.

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1-800-426-8688

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