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1.0

 

GENERAL 

1.01

  The  LG  250  Sealed  Fiber  Optic  Splice  Closure 

provides a unique, flexible fiber splicing system 
for  Fiber-in-the-Loop  or  distribution  splicing. 
Typical types of cables that can be used in this 
closure  are:  central  core  shielded,  central  core 
dielectric,  loose  tube  shielded,  loose  tube 
dielectric,  ribbon  shielded,  ribbon  dielectric. 
Also,  the  closure  incorporated  a  unique  cable 
clamp design that secures the cable and allows 
the  dome  and  C-Half  sections  to  be  removed 
with  out  disturbing  previously  installed  cables. 
The  LG-250  consists  of  five  (5)  main 
components. Refer to 

Figure 1

1.02 Dome:

 Protects all internal components.  

1.03 C-Half Section:

 Creates end sealing surface with 

center  section.  Each  C-Half  section  comes  with 
four  (4)  hex  head  bolts  for  securing  for  securing 
to center section. 

1.04

 

Center  Section: 

Center  section  consists  of  five 

(5) cable sheath strain relief and central strength 
member tie-downs and will accommodate four (4) 
LL-2400,  two  (2)  LL-4848  or  four  (4)  LL-4800 
splice  trays.  The  Express  side  incorporates  as 
storage  tray  and  clear  cover  for  bare  or  ribbon 
fiber. Included and installed in the Center Section 
are  five  (5)  sealing  port  grommet  sets.  The 
Express  side  of  the  closure  has  two  (2)  and  the 
Drop/Lateral side has three (3) ports. 

1.05 O-Ring: 

Provides sealing between dome and the 

center section assembly. 

1.06  V-Band: 

Provides  locking  and  final  clamping 

between the dome and center section assembly.

 

  

 

2.0

 

SPECIFICATIONS 

   Parameter 

   Value 

   Maximum Cable Diameter 

   0.70" (17.8mm) 

   Minimum Cable Diameter 

   0.30" (7.6mm) 

   Maximum Cable Entry 

   5 ports 

   Overall Dimensions (ht. x dia.) 

   19" X  8.75" (438mm X 222mm) 

 
3.0 Contents 
3.01 

The  LG-250  comes  with  materials  to  install  five 
(5) cables into ports and up to three (3) drops per 
port on the Drop/Lateral side of the closure. 

 

3.02 Accessory Materials 

  91710-06 

  LL-2400 

  Single Fusion (24SF) Splice Tray 

  911289-00-02 

  LL-2448 

  Universal (24SF or 48 MF) Splice Tray 

  91711-07 

  LL-4800 

  Mass Fusion (48MF) Splice Tray  

  911437-00-02 

  LL-4848 

  Mass Fusion (144MF) Splice Tray  

  FC001091 

  CGK 

  Cable grounding kit (for 5 cable) 

 

 
 
 
 
 
 
 

 
 
 
 

 

 

 
 
 
 
 
 
 
 
 
 
 
 

  FC000040 

  CGH-5 

  Cable grounding kit (for 5 cables) 

  FC000006 

  OHK 

  Universal Strand Mount Hanger Kit 

911969-00 

  PWK 

  Pole/Wall Mount Bracket Kit 

  FC000070 

  RT 1x6 

  1 x 6 Router Kit 

 
3.03 Tools and Supplies Required for Installation:  
 

Cable Cleaner or Wipes 

 

¾” Vinyl tape (if bonding) 

 

216 Style Tool (3/8” – 7/16” Hex Driver) 

 

- Wire Cutters for Strength Member 

 

- Splicers Scissors 

 

- Splice Equipment and Sleeves 

 

- Cable Stripper 

 

- Cable Splicers Knife 

 

- Needle Nose Pliers 

 

- Slotted Screw Driver (optional) 

 

4.0

 

CABLE PREPARATION

 

 

CAUTION:  When  preparing  cable,  insure  that  buffer 
tubes and fibers are NOT cut, nicked or kinked. If this 
occurs, cut back to eliminate damaged area. 
 

4.01  Express  Cables: 

Remove  66”  of  cable  sheath 

and  expose  buffer  tubes,  removing  shield,  Mylar 
or Kevlar if present.

  

         Drop  (Stub)  Cables:

 

Remove  72”  of  cable 

sheath. 

(

See 

Figures 

2A 

– 

2D

 

for 

measurements)

4.02 

Remove  all  cable  coating  compounds.  Clean 

sheath, all primary tubes and dielectric strands  

 
 

 

 

INSTALLATION INSTRUCTIONS   

FC000387 REV.5

 

                LG 250 SEALED FIBER OPTIC SPLICE 
CLOSURE

 

Figure 1 - Components of the LG-150 Closure

Figure 1 – Components of LG250 Fiber Optic Closure 

V-Band

 

Dome

 

O-Ring

 

Center Section

 

C-Half

 

C-Half

 

Summary of Contents for LG 250

Page 1: ...8mm Minimum Cable Diameter 0 30 7 6mm Maximum Cable Entry 5 ports Overall Dimensions ht x dia 19 X 8 75 438mm X 222mm 3 0 Contents 3 01 The LG 250 comes with materials to install five 5 cables into po...

Page 2: ...1 Cable entry should start with the selection of one or both of the Express Feeder ports first then with the Drop Lateral ports 5 02 The port closest to the center sections hanger attachment is used f...

Page 3: ...t bag Only remove the cable clamps and grommets from the ports to be occupied by cable Photo 4 Grommet Kit Contents 8 0 USING THE BAND MIC AND LAYER REMOVAL 8 01 Wrap the Band Mic around the cable in...

Page 4: ...2 Position the grommet open and count the number of layers from the center of grommet to be removed Do not include the center core as a layer Carefully tear the layers from the grommet by using a peal...

Page 5: ...arger flanges of the grommets fit in the first and last slots of the cable entry port The ends of the grommets where the layers are visible should now be facing each other The grommets cable access sl...

Page 6: ...es are lined up properly to the appropriate slot Press the cable clamp by hand to assure for proper seating Tighten the cable clamp bolts by alternating in a crossing pattern to lower the cable gradua...

Page 7: ...Use tabbing shears to slit the cable jacket at the ring cut approximately 1 to 1 1 2 inches Then peel on side up from the cable to create a tab See Figure 7 12 02 Place the terminal end onto the grou...

Page 8: ...bundles from the Express Feeder cables or from Drop Lateral cables can be safely routed into the flexible routing clips molded into the sides of the center section frame It is recommended that loose b...

Page 9: ...flexible routing rings to join up with the Express Feeder bundles 14 09 Determine the amount of slack required and mark all bundles Dress slack back towards the storage area Note If the ribbons are to...

Page 10: ...and CSM clamp to assure these are tight 16 02 Apply lubricant to the gasket surfaces of the C Half sections and tighten firmly the four 4 captive hex head bolts Use a 216 style tool or 3 8 socket and...

Page 11: ...efer to Photo 19 V Band Alignment to Base 18 03 Flash test the closure to 10 psi maximum using air valve at end of dome Do not over pressurize 18 04 After pressurizing closure to 10 psi check for leak...

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