3
1.0 General
The 3M 2178 Fiber Optic Splice Case is used in underground, aerial, building entrance, and pedestal
applications. The splice case has two cable entrance ports on each end. Port plugs allow the case to be
used for butt or inline splices. The rigid nonfilled case provides moisture protection and can be pressurized.
The integral organizer and splicing trays accommodate single-mode and multi-mode fiber optic field splices.
Three series of trays are available: The 2116 Splice Tray for fusion splices, the 2118 Splice Tray for
mechanical splices, and the 2120 Splice Tray for rotary splices. Splice trays and bonding and grounding
hardware are not included in the kits.
The Universal Organizer Adapter allows the 2178 Splice Case to accommodate other splice trays when the
2116, 2118 and 2120 are not used. Splice trays which will work with the Universal Organizer Adapter include
3M 2524 Fibrlok
TM
Tray and 2524F Fusion Tray, AT&T, UC Series, Siecor, Ditel, Preform and Northern
Telecom. One Universal Organizer Adapter is included with the splice case. For further information, see
manufacturer's tray size specifications on page 3.
The 2180 Cable Kit is used when the 2178 Fiber Optic Splice Case is reentered. All materials necessary for
cable addition and splice case reassembly are included.
The 2181 Cable Addition Kit increases the cable entrance capacity of the 2178 Fiber Optic Splice Case. One
butt adapter is included in each 2181 Kit. A single butt adapter allows the 2178 Splice Case to accommodate
four cables in a butt configuration or eight cables total. Double stacking the butt adapter increases the
capacity to six cables in a butt configuration or twelve cables total. The 2181B Double Butt Adapter Kit
contains the fasteners necessary to assemble the splice case when the butt adapters are double stacked.
The 2181 Kit can be installed at initial splicing or at reentry.
2.0 Specifications
- Maximum cable diameter: 1.0" (25 mm)
- Minimum cable diameter:
0.4" (10 mm)
- Maximum cable entry:
4 (2 per end)
with 2101
3 (4 per end)
with (2) 2181 & 2181B 12 (6 per end)
with (3) 2181 & 2181B 16 (8 per end)
3.0 Kit Contents
3.01 2178 Contents
Qty.
2178 Fiber Optic Splice Case/Cover & Base
1
Sealing Washer Tree
4
Sealing Plugs
2
Key, Hex (Allen Wrench)
1
Nut, Machine (10-32 3/8")
2
Green Cable TY
2
Blue Cable TY
2
Clamp (Hose, .439/1.00)
2
2178 Universal Organizer/Adapter
1
Sealing Cord
1
Sealing Tape
1