CORNING SCF-6, SCF-8 Manual

Corning Cable Systems
Standard Recommended Procedure (SRP) 003-544
Issue 6, May 2004
Page 1 of 26
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
SCF-6
SCF-8
Figure 1 — Splice Closures
Contents
Related Literature ................................................................................................................... 2
Admonishments ....................................................................................................................... 2
1. Carton Contents ............................................................................................................................... 3
2. Tools and Equipment Required ....................................................................................................... 4
3. Installing the Closure ....................................................................................................................... 4
3.1 Prepare the Express Cable ...................................................................................................... 4
3.2 Install Grounding Hardware (Armored Cable Only) ............................................................ 6
3.3 Install Express Strain-relief Hardware ................................................................................... 7
3.3.1 Strain-relief bracket(s) ................................................................................................ 7
3.3.2 Nonmetallic strength member ................................................................................... 8
3.3.3 Metallic strength members ........................................................................................ 8
3.3.4 Large strength members ............................................................................................ 9
3.4 Install Cable into the End Cap Express Ports ........................................................................ 9
3.4.1 Prepare the end cap .................................................................................................... 9
3.4.2 Apply sealing tape to the cable ................................................................................. 10
3.4.3 Using dummy plug ................................................................................................... 11
3.4.4 Install cable ............................................................................................................... 11
3.4.5 Close end cap halves ................................................................................................. 11
3.4.6 Install vented grounding plug .................................................................................. 12
3.4.7 Complete frame assembly ........................................................................................ 12
3.5 Ground Armored Cable ........................................................................................................ 12
3.6 Prepare Drop Cable Port(s) .................................................................................................. 12
3.7 Install Drop Port Cable into End Cap ................................................................................. 14
3.8 Strain-relieve Drop Ports ..................................................................................................... 14
3.9 Attach Strain-relief Bracket .................................................................................................. 15
3.10 Tighten End Cap Compression Screw ................................................................................. 15
3.11 Attach Frame to End Cap ..................................................................................................... 16
3.12 Load the ORS ....................................................................................................................... 16
3.12.1 Route express fibers .................................................................................................. 16
3.12.2 Route drop cable fibers ............................................................................................ 18
3.12.3 Route fibers to the splice plane ................................................................................ 18
3.13 Splice ..................................................................................................................................... 19
3.13.1 Prepare fibers for splicing ........................................................................................ 19
3.13.2 Splice fibers ............................................................................................................... 19
p/n 003-544
Page 2
SRP 003-544 • Issue 6 • May 2004
3.14 Splicing in Trays (Optional) .................................................................................................. 20
3.14.1 Select the buffer tube to be spliced. ......................................................................... 20
3.14.2 Store spliced trays. .................................................................................................... 21
3.14.3 When splicing ribbon express cable: ........................................................................ 21
3.15 Seal the Canister Closure ..................................................................................................... 21
3.15.1 Install seal ................................................................................................................. 21
3.15.2 Install the canister cover ........................................................................................... 22
3.16 Install a Flash Test Air Valve ................................................................................................. 23
3.16.1 Install valve stem....................................................................................................... 23
3.16.2 Perform flash test ..................................................................................................... 24
3.16.3 Remove air valve ....................................................................................................... 24
3.17 Ground the Closure .............................................................................................................. 24
4. Reentering the Closure .................................................................................................................. 25
5. Reopening the End Cap ................................................................................................................. 25
Customer Service and Information ...................................................................................... 26
Revision History
Issue
Date
Reason for Change
6
5
4
3
05/2004
10/2002
01/2001
07/2000
2
11/1999
1
08/1999
Illustrate redesigned fiber management frame and sealing ring
Reference checklist and clarify sealing paste and lubricant application
Add SCF8 instructions and power tool precautions
Illustrate redesigned strain-relief brackets and add chemical and
installer precautions
Add instructons to strain-relieve large diameter central strength
members
Initial release
Related Literature
EVO-435-EN
SRP 206-286
SRP 001-284
Specifications for Medium Mass Fusion Splice Canister Closure
Mechanical Endcap Canister Closure Sealing Checklist
Instruction, Splice Trays Using Heatshrink Splice Protectors
Admonishments
The precautionary terms used by Corning Cable Systems in its standard recommended procedures
conform to the guidelines expressed in the American National Standards Institute document (ANSI
Z235) for hazard alert messages. Alerts are included in this instruction based on the following:
DANGER indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION indicates a hazardous situation which, if not avoided, may
result in minor or moderate injury.
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
SRP 003-544 • Issue 6 • May 2004
1.
Page 3
CARTON CONTENTS
•
•
•
•
•
•
•
•
(1) Tray stacker (Two in -02 configurations)
(1) Dome cover
(1) End cap
(1) Clamping ring
(1) Sealing ring
(1) Frame assembly
(2) Drop port hardware kit
• (2) Drop bracket
• (2) 7/16 x 1-inch hose clamp
• (2) Central member restraint cap
• (6) #8 Washer
• (4) Nylon lock nut
• (2) #10-32 Philips-head screw
• (2) Toothed washer
• (2) 18mm sealing grommet
• (2) 14mm sealing grommet
• (2) 10mm sealing grommet
• (2) Compression screw
(1) Express port hardware kit
• (2) Express bracket
• (2) 3/4 x 11/2-inch hose clamp
•
• (2) 7/16 x 1-inch hose clamp
• (2) Central member restraint cap
• (4) #8 Washer
• (4) Nylon lock nut
(1) Accessory kit
• (1) Cleaning tissue
• (1) Sealing paste - labeled
“dichtpaste”
• (1) Sealing tape
• (2) 8-inch Ground wire
• (1) UCN Lubricant
• (1) Brush
• (5) Small cable ties
• (2) M6x40 hex-head screw
• (2) M6x90 hex-head screw
• (4) 1/4 x 3/4 x 1/16 washers
• (1) Vented grounding screw
• (1) Solid grounding plug
• (2) Grounding assemblies
• (1) Combination wrench tool, for
either the SCF-6 or SCF-8
Closure (Table 1)
A — Wrench for closing screw
SCF-6 Combination Wrench
B — Wrench for grounding screw
C — Maximum diameter for tape-wrapped cable in express ports
D — Maximum cable diameter for medium rubber sealing (14 mm)
E — Maximum cable diameter for small rubber sealing (10 mm)
F — Maximum cable diameter for large rubber sealing (25 mm)
G — Wrench for compression screw
H — End cap closing gauge
K — Minimum cable diameter for small rubber sealing (5 mm)
A — Wrench for closing screw
SCF-8 Combination Wrench
B — Wrench for grounding screw
C — Maximum diameter for tape-wrapped cable in express ports
D — Maximum cable diameter for medium (21 mm) rubber sealing grommet
E — Maximum cable diameter for small (16.5 mm) rubber sealing grommet
F — Maximum cable diameter for large (25 mm) rubber sealing grommet
G — Wrench for compression screw
H — Endcap closing gauge
K — Minimum cable diameter for small (12 mm) rubber sealing grommet
L — Minimum cable diameter for smallest (8-11 mm) rubber sealing grommet
Table 1 — Combination Wrench Tool
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
Page 4
2.
SRP 003-544 • Issue 6 • May 2004
TOOLS AND EQUIPMENT REQUIRED
The following tools and materials are required to complete this installation:
•
•
•
•
•
•
•
•
•
3.
Tape measure
Scissors
Side cutters
Cable knife
11
/32-inch nut driver
1
/2-inch deep socket and ratchet
3 8
/ -inch nut driver
Adjustable wrench
5 16
/ -inch nut driver (to install sheath
retention clamp)
•
•
•
•
•
•
•
•
•
•
•
7
/16-inch nut driver
10 mm socket and ratchet
Flat-tip screwdriver
Phillips-head screwdriver
Permanent marker pen
Paint marker pen
Hand pump
Air pressure gauge
Torque wrench
Vinyl tape
Soapy water (to verify leaks)
INSTALLING THE CLOSURE
NOTE: Fiber optic cable is sensitive to excessive pulling, bending and crushing forces. Consult the cable
specification sheet for the cable you are installing. Do not bend the cable more sharply than the
minimum recommended bend radius. Do not apply more pulling force to the cable than
specified. Do not crush the cable or allow it to kink. Doing so may cause damage that can alter
the transmission characteristics of the cable – the cable may have to be replaced.
WARNING: Do not install this unit or work with telephone wiring during a
lightning storm. Telephone lines can carry high voltages from lightning causing electrical
shock resulting in severe injury or death.
CAUTION: The wearing of safety glasses to protect the eyes from accidental injury is
strongly recommended when handling chemicals and cutting fiber. Pieces of glass fiber are
very sharp and can damage the cornea easily.
CAUTION: The wearing of safety gloves to protect hands from accidental injury is
strongly recommended when using sharp instruments.
3.1
Prepare the Express Cable
IMPORTANT:
Step 1
Typical lengths are illustrated. Since the actual application may vary, it is
recommended to route the buffer tubes as they will lie in the closure to determine
actual strip lengths before cutting fibers. Refer to routing illustrations, if necessary.
Remove indicated length of cable sheath and armor (where applicable) according
to cable manufacturer’s instructions (Figure 2).
NOTE: Do not expose the bare fibers until after the cable has been placed in the closure end cap.
Step 2
Cut the central strength member of each cable to 15 cm (6 inches) from the sheath
using side cutters.
Step 3
If aramid yarn is present, leave an excess length of yarn (approximately 6 inches)
for additional strain-relieving.
IMPORTANT:
To prevent damage to the fiber, remove all uncut express fiber from the tubing using
the universal access tool (p/n UAT2-000 - purchased separately).
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
SRP 003-544 • Issue 6 • May 2004
Page 5
SCF-6C22-ORS
Ribbon Cable for Drop Cable
(non-mid-span)
CABLE
Single Fiber (with Buffer Tubes) Drop Cable
Tray Slack
Tray Slack
CABLE
Central Tube
18 cm (7 in.) 226 cm (89 in.)
Buffer Tubes
CABLE
56 cm (22 in.)
244 cm (96 in.)
127 cm (50 in.)
183 cm (72 in.)
Single Cable Mid-span in Express Ports
CABLE
Central Tube
18 cm (7 in.)
Central Tube
Cut line for drop cable
CABLE
18 cm (7 in.)
305 cm (120 in.)
SCF-6C28-ORS and SCF-8C28-ORS
Single Fiber (with Buffer Tubes) Drop Cable
Ribbon Cable for Express orDrop Cable
(non-mid-span)
Tray Slack
CABLE
Tray Slack
CABLE
Central Tube
Buffer Tubes
CABLE
18 cm (7 in.) 260 cm (102 in.)
69 cm (27 in.)
275 cm (108 in.)
114 cm (45 in.)
190 cm (75 in.)
Single Cable Mid-span in Express Ports
CABLE
Central Tube
18 cm (7 in.)
Central Tube
Cut line for drop cable
CABLE
18 cm (7 in.)
365 cm (144 in.)
Figure 2 — Express (Non-mid-span) Cable
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
Page 6
3.2
SRP 003-544 • Issue 6 • May 2004
Install Grounding Hardware (Armored Cable Only)
Ground armored cables using the hardware in the accessory kit as shown in Figure 3. Additional
armored cables must also be grounded using a grounding kit purchased separately from your
customer service representative.
IMPORTANT:
Step 1
Step 2
Step 3
Do not install express cables until Section 3.4 or drop cables until Section 3.7.
Cut a slit into opposite sides of the
outer sheath and armor about 2.5
cm (1 inch). To do this, score the
armor with a cable knife (being
careful not to damage the inner
sheath) and split the sheath by
flexing it.
1
2.5 cm
NOTE: When the cable has metal strength
members, attach the extension bracket to
the base plate as shown in the inset before
installing the top plate.
Step 4
Wrap the grounding clamp and
split portion of the cable sheath
with vinyl tape.
Step 5
Place the eyelet on the ground wire
over the stud on the base plate. Add
a second lock nut and tighten using
a 3/8-inch wrench.
3
4
(1 in.)
2
Position the grounding clamp base
plate under the 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 drive the teeth on the
plate into the cable sheath.
Position the top plate and lock nut
on the outer sheath over the base
plate. Tighten with a 3/8-inch
wrench so that the teeth on the
upper plate are driven into the
sheath.
2
1
Base Plate
Stop
3
Extension
Bracket
Top Plate
Extension bracket not shown.
4
5 cm (2
in.)
Extension bracket not shown.
5
NOTE: Ground lead will be attached to endcap in a
later step.
Figure 3 — Grounding Hardware
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
SRP 003-544 • Issue 6 • May 2004
3.3
Page 7
Install Express Strain-relief Hardware
Determine cable and strength member type and proceed accordingly:
•
Strength members in single-tube cables must be separated by the restraint cap threaded
stud.
•
Single strength members in loose tube design cables must be secured in the cap.
•
Cables (central tube) with sheath-mounted GRP (Glass Reinforced Plastic) strength
members need only the strength member(s) on one side of the cable secured in the cap.
IMPORTANT:
3.3.1
If the cable used is made with metallic strength members, use the grounding
hardware as for the armored cable, with the extension bracket to strain-relieve the
metallic strength members and ground them. Refer to Section 3.2.
Strain-relief bracket(s)
Install strain-relief bracket(s) onto the opposite side (180 degrees) from the grounding clamp, if
applicable:
Step 1
Place a hose clamp over the cable and bracket 18 mm (0.75 inches) below the
sheath end.
IMPORTANT:
Step 2
If grounding hardware is used, make sure the hose clamp does not overlap the ground
clamp.
Tighten the hose clamp in the
notch on the bracket with the
tensioning body on the hose
clamp on the same side of the
bracket as the threaded stud
(Figure 4). Tighten hose clamp
to a torque value of 10 in-lb for
nonarmored cable or 17 in-lb for
armored cable.
Step 3
Place a washer over the threaded
stud on the strain-relief bracket.
Step 4
Wrap the yarn (if present) twice,
clockwise, around the threaded
stud (Figure 4).
Step 5
Install a washer and nut and
tighten securely.
Step 6
Mark the cable in the location
shown in Figure 4.
Step 7
Repeat for the second cable,
when applicable.
Threaded Stud
Yarn
Hose Clamp
Tensioning Body
0.75 inch
Mark
Cable
0.5 inch
Figure 4 — Strain-relief Bracket
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
Page 8
SRP 003-544 • Issue 6 • May 2004
3.3.2
Nonmetallic strength member
If strength member is nonmetallic:
Step 1
Trim the strength member flush with the top of the strain-relief bracket (Figure 5).
Step 2
Insert the restraint cap threaded stud
through the upper hole in the strainrelief bracket capturing the strength
member between the two.
Step 3
With the nonmetallic strength
member behind the bracket, install a
nut on the restraint cap threaded stud
(Figure 5).
Step 4
Confirm buffer tubes are clear of the
strength elements. Tighten nut
securely.
Step 5
3.3.3
Restraint Cap
Strength Member
Repeat for the second cable, when
applicable.
Figure 5 — Strength Member Strain-relief
Metallic strength members
If strength members are metallic:
Step 1
Bend them over the slots in the extension bracket as shown in the inset in Figure 6
and then trim excess strength member.
Step 2
Insert the restraint cap threaded stud through the upper hole in the strain-relief
bracket capturing the strength member between the two.
Step 3
Install restraint cap as shown in Figure 6.
Step 4
Install a washer and nut and tighten securely.
Step 5
Repeat for other cables, when applicable.
IMPORTANT:
Confirm all buffer tubes are clear of the strength elements prior to securing the
restraint cap.
Metallic Strength Members
Restraint
Cap
Yarn
Figure 6 — Metallic Strength Member Strain-relief
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
SRP 003-544 • Issue 6 • May 2004
3.3.4
Page 9
Large strength members
For cables with large strength members, use the supplied strain-relief kit, instead of the restraint
caps (Figure 7):
3.4
Step 1
Slide the metal tube over the end
of the central member.
Step 2
Align the threads in the side of the
tube with the hole in the top of the
strain-relief bracket.
Step 3
Install the supplied screw through
the threaded hole in the tube.
Step 4
Tighten the screw.
Step 5
Trim the strength member flush
with the top of the strain-relief
bracket.
Figure 7 — Large Strength Member Strain-relief
Install Cable into the Endcap Express Ports
NOTE: Installation is illustrated using the SCF-8 closure;
the procedure is the same for the SCF-6 closure.
3.4.1
Prepare the endcap
Step 1
Remove the frame from the end cap.
Step 2
Pull the end cap halves apart.
IMPORTANT:
SCF-6 End Cap
Do not use power tools to separate the
end caps.
NOTE: Use the two main cable ports in the center of the
end cap first (Figure 8). Use the drop ports as
needed.
SCF-8 End Cap
Figure 8 — Express Ports
Step 3
Beginning with the inside of the end
cap, apply sealing tape to the end cap
half containing the metallic standoffs
(Figure 9). Cut holes in the tape to
expose the standoffs.
IMPORTANT:
It is imperative that the strain-relief
bracket have no contact with the tape.
Make sure the strain-relief tracks on
the inside of the end cap and the screw
holes are not obstructed by the sealing
tape.
Figure 9 — Endcap Standoffs
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
Page 10
SRP 003-544 • Issue 6 • May 2004
3.4.2
Apply sealing tape to the cable
CAUTION: Isopropyl alcohol is flammable with a flashpoint at 54° F. It can cause
irritation to eyes on contact. In case of eye contact, flush eyes with water for at least 15
minutes. Inhaling fumes may induce mild dizziness. In case of ingestion, consult a
physician.
Step 1
Step 2
Clean the cable where the tape will be
applied using the provided alcohol pad.
D
IC
H
T
PA
ST
E
0.5
Beginning at the mark shown in Figure 10,
use wax-paper backing from the sealing tape
to spread the “dichtpaste” sealing paste
evenly around the cable in the area where
the sealing tape will be applied (Figure 10).
Wait for the sealing paste to dry.
in.
Figure 10 — Apply Sealing Paste
Step 3
Cut and pull the strip of sealing
tape as shown in Figure 11. The
tape will stretch and thin before it
breaks.
Step 4
Starting at the mark shown in
Figure 10, wrap the tape
around the cable until it fills
the diameter “C” on the
combination wrench tool
(Figure 12a). Express ports
will accommodate cable with
a maximum diameter of 32
mm (1.2 inch); some cables
require only one wrap of
sealing tape to reach this
diameter. Always finish with a
complete wrap that overlaps
the starting point by 1/2 inch
(Figure 12b).
10 mm
(.25 in.)
Figure 11 — Sealing Tape
A
B
C
0.5 in.
Figure 12 — Measure Sealing Tape Around Cable
NOTE: The combination wrench is used in several steps during the assembly process. Use only this
wrench for measuring and tightening components where indicated (Table 1).
Step 5
Repeat Section 3.4.1 and 3.4.2 for the other cable to be installed in the express
port, if applicable.
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
SRP 003-544 • Issue 6 • May 2004
3.4.3
Page 11
Using dummy plug
When the closure only has one cable installed in either endcap, use a dummy plug (purchased
separately) to fill the unused port. If using a dummy plug:
Step 1
Follow instructions in Section 3.4.2 to
apply sealing paste and tape to the dummy
plug.
Step 2
Install dummy plug with the closed end of
the plug flush against the outside of the
end cap (Figure 13).
Figure 13 — Dummy Plug
3.4.4
Install cable
Step 1
Place one express port cable assembly on the taped end cap half (Figure 14) in the
center express port by inserting the strain-relief bracket in the tracks.
Step 2
Place the other express port cable assembly in the other express port on the
untaped end cap half by inserting the strain-relief bracket in the tracks.
Strain-relief Tracks
Sealing Ring
Channel
Sealing Ring
Channel
Figure 14 — Install Caple into Endcap
3.4.5
Close end cap halves
IMPORTANT:
Step 1
Do not use power tools to tighten the end caps.
Place the upper end cap segment
over the lower end cap segment.
Step 2
Install one short bolt and washer
on each side of the end cap
segment.
Step 3
Install two long bolts and washers.
Step 4
Alternately tighten the bolts to
close the end cap (Figure 15).
IMPORTANT:
While tightening, ensure that
the feet of the strain-relief
bracket remain inside the
tracks. Do not use power tools to
tighten.
Location for
Long Bolts
Location
for
Short
Bolt
Figure 15 — Close Endcap Halves
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
Page 12
SRP 003-544 • Issue 6 • May 2004
Step 5
Tighten the bolts until the end cap closing gauge (Section H) on the combination
wrench fits over the sides and center measuring points of the end cap (Figure 16).
Step 6
Cut excess sealing tape from the sealing ring channel (shown by dashed circles in
Figure 14) and strain-relief tracks using scissors or side cutters.
NOTE: Do not pull or stretch sealing
tape.
Step 7
3.4.6
Completely remove any
remaining sealing tape
inside the sealing ring
channel with the blade
of a screwdriver.
H
H
H
H
Figure 16 — End cap Closing Gauge
Install vented grounding plug
Install the vented grounding plug from the small, colored plastic bag:
Step 1
Apply a thin coat of UCN lubricant to the threads of the vented grounding plug.
Step 2
Install the vented grounding plug in the threaded insert on the inside of the end
cap finger-tight plus one half turn (approximately 40 to 60 in-lb).
3.4.7
Complete frame assembly
Reattach the frame assembly to the end cap.
3.5
Ground Armored Cable
Ground armored cable per local practices. Additional ground kits are purchased separately.
Step 1
Remove the small insert from the grounding plug and install a grounding wire.
Tighten the insert.
Step 2
Secure the other end of this grounding wire to the ground clamp post of one of the
main cables in the express ports.
Step 3
Attach one end of a second grounding
wire to this ground clamp post.
Step 4
Attach the opposite end of the second
wire to the second expressed cable
(Figure 17).
Vented
Grounding
Plug
Figure 17 — Ground End Cap
3.6
Prepare Drop Cable Port(s)
Step 1
Choose a cable port to be used and open the
port using a hacksaw or a knife (Figure 18).
IMPORTANT:
Use either or both of the middle ports on the
end cap first to make routing easier.
Figure 18 — Open Drop Port
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
SRP 003-544 • Issue 6 • May 2004
Page 13
Step 2
Smooth the port opening using a cable knife as
shown in Figure 19.
Step 3
Place the combination wrench to determine
which size sealing grommet is required (Figure
20 and Table 2).
Figure 19 — Smooth Port Opening
Cable
Diameter
Range:
18 mm
D
Cable
D
5 mm
Cable
If Cable Diameter Is:
Greater than
Less than:
or equal to:
Select
Grommet
Size
Wrench Gauge
"D"
AND
Wrench Gauge
"F"
Large
Wrench Gauge
"E"
AND
Wrench Gauge
"D"
Medium
Wrench Gauge
"K"
AND
Wrench Gauge
"E"
Small
Less than "K"
Cable is too small for sealing system.
NOTE: Dimensions are for reference only.
Use SCF6 combination wrench to determine cable size.
Cable
Diameter
Range:
25 mm
D
D
Cable
Cable
8 mm
If Cable Diameter Is:
Greater than
Less than:
or equal to:
Select
Grommet
Size
Wrench Gauge
"F"
AND
Wrench Gauge
"D"
Large
Wrench Gauge
"D"
AND
Wrench Gauge
"E"
Medium
Wrench Gauge
"E"
AND
Wrench Gauge
"K"
AND
Less than "L"
Cable is too small for sealing system.
Wrench Gauge
"K"
or equal to
Wrench Gauge
"L"
Small
Smallest
NOTE: Dimensions are for reference only.
Use SCF8 combination wrench to determine cable size.
Figure 20 — Sealing Grommet Size
Table 2 — Cable Diameter
Sealing Grommet
Step 4
Toothed
Washer
Place a toothed washer onto the sealing
grommet and insert both into the opened
port from the strain-relief side of the end
cap (Figure 21). Verify correct placement
of toothed washer on grommet.
Figure 21 — Washer Orientation
Refer to SRP 206-286 (Mechanical End Cap Canister Closure Sealing Checklist) to ensure all
critical steps in Sections 3.4 and 3.6 for sealing the closure have been performed accurately.
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
Page 14
Install Drop Port Cable into End cap
A
Step 1
Secure the sealing grommet and toothed washer with
the lock nut on the inside of the end cap.
Step 2
Use the combination wrench to tighten the nut until it
stops and is tight (Figure 22).
Step 3
Slide the compression screw over the cable.
Step 4
Slide the cable through the port (Figure 23).
Step 5
Prepare cable per Section 3.1. If the cable is armored, attach grounding hardware
as shown in Figure 3.
A
3.7
SRP 003-544 • Issue 6 • May 2004
IMPORTANT:
3.8
If the cable used is made with
metallic strength members, use the
grounding connector as for the
armored cable, with the extension
bracket to strain-relieve the strength
member and ground it. Refer to
Sections 3.2 and 3.3.
Figure 22 — Lock Nut
Figure 23 — Compression Screw
Strain-relieve Drop Port Cables
Install a drop port strain-relief bracket onto each drop port cable on the opposite side of the
cable (180 degrees) from the ground clamp, if applicable:
Step 1
Pull the cable approximately 12 inches away from the end cap to ease bracket
installation.
IMPORTANT: Secure the cable to the side of the
Threaded
Restraint Cap
bracket opposite the threaded
Stud
stud.
Bracket
Yarn
Step 2
Place a hose clamp over the cable
and bracket 18 mm (0.75 inch)
below the sheath end.
IMPORTANT:
If grounding hardware is used,
make sure the hose clamp does
not overlap the ground clamp.
Mounting
Screw
0.75 inch
Hose Clamp
Tensioning Body
Step 3
Tighten the hose clamp in the
notch on the bracket with the
tensioning body on the hose clamp
on the same side of the bracket as
Figure 24 — Drop Cable Strain-relief Bracket
the threaded stud (Figure 24).
Tighten hose clamp to a torque value of 10 in-lb for nonarmored cable or 17 in-lb
for armored cable.
Step 4
Place a washer on the threaded stud located to the rear of the bracket.
Step 5
Wrap the yarn (if present) twice, clockwise, around the stud.
Step 6
Trim nonmetallic strength member flush with the top of the bracket.
Step 7
Install a second washer and nut and tighten securely.
IMPORTANT:
Ensure that all buffer tubes are cleared from beneath the strength member prior to
tightening the restraint cap.
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
SRP 003-544 • Issue 6 • May 2004
3.9
Page 15
SCF-6
Attach Strain-relief Bracket
Attach the strain-relief bracket to the frame:
Step 1
Pull the cable back to the end cap.
Step 2
Center the cable over the port and slide
the attached screw on the strain-relief
bracket into the slot on the metal frame.
Step 3
Tighten the strain-relief bracket
mounting screw (Figure 25).
Step 4
Repeat Section 3.6 through Section 3.8
for all drop cables.
SCF-8
Figure 25 — Install onto Frame
IMPORTANT:
When drop cable contains ribbon fiber,
secure the central tube to the frame using
a cable tie as shown in Figure 26.
Cable Tie
Figure 26 — Secure Tube to Frame
3.10
Tighten End Cap Compression Screw
Secure compression screw into end cap. Tighten with the
combination wrench until the clicking sound stops or the
screw is butted against the end cap (Figure 27).
IMPORTANT:
H
D
E
G
DO NOT overtighten the screw.
Figure 27 — Tighten Compression Screw
Refer to SRP 206-286 (Mechanical End Cap Canister Closure Sealing Checklist) to ensure all
critical steps in Sections 3.7 and 3.10 for sealing the closure have been performed accurately.
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
Page 16
3.11
3.12
SRP 003-544 • Issue 6 • May 2004
Attach Frame to End Cap
Express
Cable
Step 1
Secure the end cap on the work
surface (table). An optional
installation bracket (purchased
separately) is available.
Step 2
Separate the ribbon fibers from
the drop port into two groups.
Drop Cable
Step 3
Lay all the ribbon fiber from
the express ports in a bundle
between the two groups
(Figure 28).
Clip “A”
Step 4
Hold the uncut express fibers in
one hand and the ORS frame in
the other hand.
Step 5
Carefully reposition the ORS
frame and secure it to the end
cap.
Drop Cable
Load the ORS
WARNING: Never look
directly into the end 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 the eye will not close
involuntarily as when viewing a
Figure 28 — Load ORS Frame
bright light. Consequently,
serious damage to the retina of the eye is possible. Should accidental eye exposure to laser
light be suspected, arrange for an eye examination immediately.
WARNING: DO NOT use magnifiers in the presence of laser radiation. Diffused
laser light can cause eye damage if focused with optical instruments. Should accidental eye
exposure be suspected, arrange for an eye examination immediately.
IMPORTANT:
3.12.1
Basic ribbon fiber routing requires Ribbon “A” spliced to Ribbon “B”. Ribbon “B”
will be routed to the side storage compartment and side of the splice plane opposite
from ribbon “A”.
Route express fibers
Step 1
Loop the express ribbon in the middle compartment of the ORS and temporarily
secure with tape.
IMPORTANT:
DO NOT secure the uncut express slack in the plastic clip (“A”) on the interior of
the middle compartment. This clip is to secure the fibers from the express port that
are to be spliced as they are routed from the express compartment to the side storage
compartment.
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
SRP 003-544 • Issue 6 • May 2004
Page 17
Step 2
Determine the length
required and cut the express
fibers to be spliced.
Step 3
Open the first clip (“A”) in
the middle compartment.
Step 4
Route the cut express fibers
(that are to be spliced)
through the clip and into the
side storage area. Note the
counterclockwise path as
shown in Figures 29 and 30
for this particular side.
Step 5
Loop all the express ribbon
fibers (that are to be spliced)
from the express area and into
their respective side storage
areas.
NOTE: A loop of fiber slack can be stored in
the side storage areas with the loop
routed respectively for each side as
shown in Figure 29. The loop is
limited at the bottom by the metal
retaining bracket and at the top by
the plastic clip (“B”).
Figure 29 — Route Through Clip A
Retaining Bracket
Clip “B”
Figure 30 — Route Through Clip B
Step 6
Attach the express cover
once the fibers are routed
into the side storage area
(Figure 31).
Step 7
Leave the extra length of
fibers lying on the table.
Wrap the bundle
temporarily with tape.
Cover
Express Cover
Figure 31 — Attach Express Cover
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
Page 18
SRP 003-544 • Issue 6 • May 2004
3.12.2
Route drop cable fibers
Step 1
Route fiber from the drop port cable directly into the side storage compartment.
Step 2
When splicing to more than one drop cable, prepare the other side for routing per
Section 3.12.1.
IMPORTANT:
Do not move fibers to the splice plane until both sides are routed.
3.12.3 Route fibers to the splice plane
Step 1 Carefully turn the closure
over until the splice plane is
on top. Remove the splice
plane cover (Figure 32).
Step 2
Splice Plane Cover
Clip “B”
Take the bundle of fibers
wrapped in tape through the
side plastic clip (“B”) and
remove the tape.
Figure 32 — Remove Splice Plane Cover
Step 3
Close the clip to secure the fibers
within it (Figure 33).
Step 4
Open the plastic clip on the splice
plane (Clip “C”) and lay the fibers
inside.
Clip “C”
Clip “B”
Figure 33 — Clip B
Step 5
Carefully close Clip “C” (Figure 34).
Step 6
Lay the fibers all the way down the
splice plane on the side of the
organizer. Maintain a full loop of slack
in the storage area.
Step 7
Temporarily secure the fibers at the
bottom of the ORS with another piece
of tape (Figure 35).
Step 8
Repeat Section 3.12.2 for the drop
cable routed on the other side.
Clip “B”
Clip “C”
Figure 34 — Clip C
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
SRP 003-544 • Issue 6 • May 2004
3.13
Page 19
Splice
IMPORTANT:
3.13.1
Before cutting, make sure there is a complete loop of fibers in the side storage
compartment and the fibers lie neatly in the trough of the splice plane.
Prepare fibers for splicing
Step 1
To ensure the appropriate length of slack fibers, cut the fibers extending beyond
the bottom of the closure as shown in Figure 35.
Step 2
Remove the tape from the fibers.
Step 3
Remove the fibers from the top plastic clips (Clip “C”).
Step 4
Lay all fibers on the table.
Step 5
Determine which two ribbon
fibers are to be spliced (one
from the left and one from the
right).
Tape to Endcap
Step 6
Route them through the clip
again and into the bottom of
the closure. Do not close the
clip at this time.
Step 7
Bring the two fibers to the first
position in the organizer.
Step 8
Temporarily lay the fibers in
the organizer to determine the
required length.
Step 9
Cut both fibers at the same time in the center of the organizer.
3.13.2
Figure 35 — Cut Excess Fibers
Splice fibers
Splice the fibers according to the instructions for the splicing equipment you are using:
Step 1
Insert the protected splice (heatshrink splice protectors are recommended) back
into the first slot in the organizer.
Step 2
Repeat from Step 5 in Section 3.13.1 for all required splices. Install splices into the
organizer consecutively (Figure 36).
NOTE: Each slot in the organizer accepts
two splices. Install the second
splice on top of the first splice
before proceeding to the next slot
in the organizer.
Step 3
SCF-6
SCF-8
Secure the spliced ribbons
in the clips (Clip “C”) on
the splicing plane
(Figure 34). Confirm the
fibers do not exceed the
minimum bend radius.
Figure 36 — Splice Organizer
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
Page 20
SRP 003-544 • Issue 6 • May 2004
Step 4
Record splice information
appropriately on the splice label
and attach the splice plane cover
(Figure 37).
Figure 37 — Splice Information Label
Step 5
Secure the plastic cover on
the side compartment using
the wing nuts as shown
(Figure 38).
Figure 38 — Slide Cover Beneath Retaining Bracket
3.14
Splicing in Trays (Optional)
Splice trays (purchased separately) can be used when the drop cable is single-fiber cable with
buffer tubes or small central tubes. A ribbon strain-relief kit (p/n SCF-KT-RTK, purchased
separately) is required before the ribbon can be safely secured to a splice tray. Follow the
instructions provided with the kit.
3.14.1
Select the buffer tube to be spliced
Step 1
Remove the plastic cover from the
side compartment.
Step 2
Route the buffer tube on the
outside of the tray to make sure
there is a loop of fiber (Figure 39).
Step 3
Attach the buffer tube loosely to
the tray using a cable tie
(Figure 39).
Step 4
Mark the buffer tube with a
permanent marker 19 mm
(0.75 inches) from the cable tie.
Figure 39 — Mark Buffer Tube
Step 5
Remove the buffer tube beyond this mark in segments of approximately 304 mm
(12 inches).
Step 6
Prepare all splice trays in the same manner.
Step 7
Follow the instructions provided with the splice tray for detailed splicing
instructions.
IMPORTANT:
Do not store buffer tube slack in the same area as the ribbon fibers. Damage to the
ribbon fibers can occur.
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
SRP 003-544 • Issue 6 • May 2004
3.14.2
Page 21
Store spliced trays
Place the spliced trays over the stud in the
side compartment with the tray oriented
toward the clips as shown in Figure 40.
3.14.3
Splicing ribbon express cable
Step 1
Remove the splice tray.
Step 2
Route the express fiber from
the middle compartment to the
side storage area.
Step 3
Coil two loops of fiber and
install transport tubing over
the ribbon.
Step 4
Secure the transport tube to the ORS frame using a cable tie.
Step 5
Reinstall the splice tray.
Step 6
Secure the transport tube to the tray using a cable tie. Do not overtighten the cable
tie.
IMPORTANT:
3.15
Figure 40 — Splice Tray Orientation
When splicing ribbon fiber, route the express port fiber only through the center/
express section of the ORS frame. Do not route this fiber into the side storage
compartments.
Seal the Canister Closure
NOTE: Do not use liquid encapsulant in SCF closures.
3.15.1
Install seal
Step 1
Roll the sealing ring over frame (Figure 41)
and down to the end cap with arrows as
shown.
IMPORTANT:
The sealing ring must be installed in the
orientation shown.
Figure 41 — Roll Sealing Ring
Step 2
Step 3
Verify there is no sealing tape in the
sealing ring channel. Flatten any
sealing tape with a flat-tipped
screwdriver.
LU
BR
IC
AN
T
Use the supplied brush to apply a
third of the UCN lubricant tube to
the sealing ring channel on the end
cap (Figure 42).
Figure 42 — Lubricate Channel
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
Page 22
SRP 003-544 • Issue 6 • May 2004
Step 4
Stretch the sealing ring over the channel
(Figure 43).
Figure 43 — Stretch Sealing ring
Step 5
Fold the edge of the seal that overlaps
the outside of the end cap until the seal
seats in the channel as shown in
Figure 44.
IMPORTANT:
The installed sealing ring must be
oriented as shown toward the inside of
the closure (Figure 44).
Figure 44 — Fold Sealing Ring
Step 6
Retain a small amount of UCN lubricant
for use later. Apply the remaining
lubricant to all sides of the sealing ring
(Figure 45).
LU
BR
IC
AN
T
Figure 45 — Lubricate Sealing Ring
3.15.2
Install the canister cover
Step 1
Slide the canister over the
closure assembly (Figure 46).
Figure 46 — Slide Canister Dome
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
Page 23
Step 2
Loosen both bolts on the clamping
ring.
Step 3
Apply a thin coat of UCN
lubricant retained previously to
the threads of the clamping ring
latch bolts to prevent the bolts
from seizing on reentry.
Step 4
Place the clamping ring over the
flange of the canister and the
sealing ring with the embossed
lettering toward the outside of the
closure. Ensure that both the
sealing ring and the canister flange
are within the clamping ring
(Figure 47).
S
RX
SRP 003-544 • Issue 6 • May 2004
Figure 47 — Orient Clamping Ring
NOTE: The clamping ring seams must be oriented
90-degrees from the endcap seam
(Figure 47).
Swing the clamping ring into
closing position. Tighten the bolts
until the plastic on the ring
touches, then torque to a 50 in-lb
value (Figure 48).
IMPORTANT:
3.16
A torque value of 50 in-lb
should be sufficient. Do not use
power tools to tighten the
clamping ring; a torque value
of more than 80 in-lb causes the
hardware to crack and the
clamping ring to become
defective. If the clamping ring
does not close properly, make
sure the sealing ring and
clamping ring are oriented
correctly.
S
RX
Step 5
Figure 48 — Tighten Clamping Ring
Install a Flash Test Air Valve
3.16.1
Install valve stem
Step 1
Apply a thin coat of UCN
lubricant retained previously to
the threads of the valve stem (p/n
UCN-KT-FV, package of five,
purchased separately).
Step 2
Install the valve stem finger-tight,
then another half turn with a
wrench, into the grounding port as
shown in Figure 49.
Figure 49 — Install Air Valve
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
Page 24
SRP 003-544 • Issue 6 • May 2004
3.16.2
Perform flash test
Step 1
Inject 12 to 14 psi of air into the closure
using a hand pump (Figure 50). Check
pressure regularly.
WARNING: To avoid a potentially
hazardous situation that could result in
death or serious injury, do not exceed 14 psi
(100 kpa) gauge pressure. The closure could
burst.
Step 2
Apply soapy water to the seal points and
watch closure for signs of leakage
(bubbling of soap).
Figure 50 — Flash Test
NOTE: A correctly sealed closure maintains pressure with no leaks.
Step 3
After the flash test has been performed and the closure sealed correctly, carefully
remove the air valve and allow air to escape.
Step 4
Apply a thin coat of UCN lubricant
retained previously to the threads of a
solid, two-piece non-vented grounding
plug (Figure 51).
Step 5
Install the plug into the end cap from the
outside of the end cap finger-tight, then
another half turn (approximately 40 to
60 in-lb).
Figure 51 — Grounding Plug
3.17
Ground the Closure
Step 1
Remove the smaller insert from the
grounding plug.
Step 2
Connect a grounding cable (not supplied) to
the plug (Figure 52).
Step 3
Screw the smaller insert back into the plug.
Step 4
Tighten the insert using a small adjustable
wrench.
Step 5
Terminate the other end of the ground per
local practices.
Figure 52 — Ground Closure
Refer to SRP 206-286 (Mechanical End Cap canister Closure Sealing Checklist) to ensure all
critical steps in Section 3.15, 3.16 and 3.17 for sealing the closure have been performed
accurately.
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
SRP 003-544 • Issue 6 • May 2004
4.
5.
Page 25
REENTERING THE CLOSURE
Step 1
If it is necessary to reenter the closure, verify there is no pressure by removing
external ground plug and allowing air to escape.
Step 2
Remove clamping ring by untightening the two bolts.
Step 3
Perform any tests, modifications, or examinations of the closure that are necessary.
Step 4
Reinstall the clamping ring per Section 3.15.2.
Step 5
Flash test closure per Section 3.16 on every entry.
Step 6
Reterminate ground, if applicable, per Section 3.17.
REOPENING THE END CAP
Step 1
Separate the frame from the end
caps by removing the two screws.
Step 2
Remove the end cap sealing ring.
Step 3
Remove the four bolts holding the
end cap segments together by
inserting the long bolt into either
hole that has a threaded insert
(next to the outer closing holes).
See Figure 53.
Step 4
Remove any sealing tape from
inside the square opening on
either side of the end cap where
the bolt will be inserted to prevent
the threads of the bolt from
becoming clogged.
Step 5
Insert a flat screwdriver in the
square opening on either side of
the end cap.
Step 6
Tighten the long bolts on either
side of the end cap while holding
the screwdriver in place.
Step 7
Alternate tightening the screws
until the end cap halves are fully
separated.
IMPORTANT:
Figure 53 — Reopen End Cap
Do not use power tools to
separate the end caps.
SCF-6 and SCF-8 Open Ribbon System (ORS) Canister Splice Closures
Page 26
SRP 003-544 • Issue 6 • May 2004
Customer Service and Information
Telephone: ———————————————————————————————————
Customer Service—US or Canada: 1-800-743-2671
International: +1-828-901-5000
Fax: +1-828-325-5060
Correspondence: ————————————————————————————————
Cornin
9275 g Cable
System
Keller,Denton Highw
s
TX 87248
ay
Corning Cable Systems LLC
PO Box 489
Hickory, NC 28603-0489 USA
Product Information: ———————————————————————————————
http://www.corning.com/cablesystems
Corning Cable Systems reserves the right to improve, enhance and modify the features and specifications
of Corning Cable Systems’ products without prior notification. Discovering Beyond Imagination is a
trademark of Corning Incorporated. All other trademarks are the properties of their respective owners.
Corning Cable Systems is ISO 9001 certified.
© 1999-2002, 2004 Corning Cable Systems. All rights reserved. Published in the USA.
p/n 003-544 / May 2004
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