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030-300377 Rev. A

Section CFDP-EL-X-801

 CFDP

t

 EL BACKBOARD CABLING INSTALLATION GUIDE 

2

0707I1P3

VELCRO

 is a registered trademark of Velcro Industries B.V.

 16.   

Attach bond clamp to cable. 

To prepare the cable for bonding to the

pedestal bonding plate, attach a company-approved cable bond 
clamp to the cable/shield at the sheath cut. Always follow clamp
manufacturer instructions or company practice to attach cable 
bond clamps, as procedures and clamps used to bond cables 
may vary per location, application, and cable type and size.

Sample

cable bond

clamps

 17.   

Cut to length then remove buffer tube.

 Measure then make a mark on the buffer

tube approximately 32" from the cut end. Using local company procedures and
tools, and being careful to avoid the fiber inside the tube, score the tube at the mark
and remove the 32" length of surplus tube and discard it.

 18.   

Clean fibers.

 Per company practice, clean the fibers.

 19.   

Attach backboard.

 If still removed, re-attach the backboard (see Step 9).

 20.   

Connect earth ground to
ground lug.

 Per local codes

and/or company practice, install
an earth ground wire of proper
gauge from the earth ground to
the pedestal at the ground
plate’s ground lug. Always
perform grounding prior to cable
attachment.

Attach earth

ground to lug

Attach bond

straps to posts

Ground plate

Alternate bonding area

 21.   

Bond cable to ground plate.

 Attach a bond strap (provided)

from the cable bond clamp (shown in Step 16) to one of the
bond posts (see Step 20 for bond post locations).

Bond strap

 22.   

Cable

bond clamp

(optional) not

shown in this view.

Secure cable to backboard’s T tie-down.

First, if the cable has strength members
(and they were not termininated in an
optional cable bond clamp), loosen the
strength member clamp located above the
chosen grommet, and slide the strength
members under it. Next, place the cable
against the cable mounting plate at the T
tie-down, and vertically align the cable so
the sheath cut is midway between the T
and strength member clamp above it
(about 1.5" above the bottom of the T).
Hold the cable in this position and secure 
it to the T by opening and firmly affixing 
a hose clamp around both the cable 
and T tie-down.

Strength member

(under clamp)

Hose clamp

(open and install around

cable and T)

Buffer tube

(not under clamp)

Cable

sheath

cut line

T

tie-down

1.5"

Strength member

clamp on cable

mounting plate

Grommet

Mounting

plate

Bottom

of T

 23.   

Tighten strength member clamp (optional)

If the strength members were placed

under the strength member clamp in Step 22

, secure them by tightening the hex nut

of the strength member clamp. Trim the strength members per company practice.

 24.   

Route the tube/fiber into fiber basket.

Route the buffer tube up through the
bottom opening of the fiber basket, and
wrap the length of tube inside the basket
(about 2 loops). Secure the tube to the
inside walls of the basket with cable ties,
especially where it first enters the
basket, but do not secure the last 3 feet
of tube. After the tube is attached to the
splice tray in Step 26, this 3’ length will
allow the technician sufficient tube slack
when the splice tray is accessed for fiber
splicing.

Fiber

basket

CO side of
backboard

Begin to route the

buffer tube up

through the bottom of

basket, attach it to
the basket’s inside

wall with a cable tie,

and loop it two times.
See steps  26 & 27 to

attach the tube end

to a splice tray and

wrap fiber in the

splice tray.

Fiber

(approx. 32")

Cable

Buffer tube

(approx. 4.5

feet)

 Attach buffer

tube to inside of

basket here

where it first

enters basket.

 25.   

Prepare a splice tray for tube attachment.

 Prepare a splice tray (provided) by

removing the cover and starting 
two cable ties at a top tray corner, 
using the inner tie-down slots. 
Two trays are advised if using 
more than 12 pigtails.

Cable ties

Outer cable

tie-down slots

Choose a tray corner

Inner slots

 26.   

Attach tube to tray.

 Overlap the buffer tube onto the tray corner about 1" (see Step

27), then secure the tube to the tray with the two positioned cable ties.

 27.   

Store fibers in splice tray.

 Per

company practice, wrap and
store the fibers in the splice
tray for later slicing, then
attach the tray cover. 
Use additional trays 
as needed.

Tube,

with

fiber

inside

Secured

cable ties

Fiber

1"

If more than 12 pigtails will be

spliced, additional splice

tray(s) can be used. Always

follow company practice.

 28.   

Label the tube.

 Label both tube ends, per company practice.

 29.   

Locate or obtain SC-type pigtails.

 Separately-ordered SC/APC- and

SC/UPC-type pigtail kits are available from Charles (see 
Table 2). Obtain the correct type of pigtails for the 
Interconnect pedestal used in this installation.

 30.   

Attach SC-type connector end of pigtails.

 Attach

the connector end of the SC-type pigtails to the
SC-type bulkhead adapters at the top of the
backboard. Remove the caps from the
adapters prior to inserting the connect-
ors. Follow company practice for correct
cable color-coding, and consult the
label on the front side of the bulkhead 
to locate the proper line numbers.

(Adapters not removable.

Adapter #1 is inner and

top-most one.)

Preconnectorized bulkhead

  at top of backboard

Plug connector into adapter.

Sample of a

bulkhead adapter

900-micron SC-type

connector pigtail

 31.   

Route pigtail

fibers behind

pigtail

protection

plate.

Route pigtails behind
protection plate. 

Once all pigtail

connectors are attached to the
bulkhead, route their free ends
(either singly or collectively)
behind the pigtail protection plate,
starting at the left side of the plate,
then guide them down into the
fiber basket area.

Pigtail

protection

plate

Adapter

bulkhead

Fiber

basket

Free ends of

pigtails

 32.   

Group

ends of

pigtails

and insert

into tube

Route free ends of pigtails through transportation
tube. 

Provided are two 3-foot lengths of plastic 1/4"

tubing to protect the 900-micron pigtail cables. Gather
the free ends of the connected pigtails 

(12 pigtails per tray

and tube),

align their ends as a group, and collectively

guide them into a transportation tube. Grouping the
fibers provides greater rigidity. Slide the fibers through
the tube until the free ends exit the opposite tube end.

Transportation

tube

Pigtail

ends

 33.   

Secure

transportation tube
to basket here (top

inside wall) with

cable tie

Attach one end of transportation
tube to the basket. 

With a cable

tie, doubled over, attach one end of
the transportation tube to the top,
left, inside wall of the fiber basket.

Fiber basket

Transportation

tube

Bend-radius

control

Bottom splice tray tab

Pigtails and feed tube not

shown, for visual clarity

Velcro strap

 34.   

(Optional − trim transportation tube to proper 
length.)

 Before attaching the tube to the splice 

tray, verify the tube length allows the splice tray 
(which is attached to the tube in the next step) 
to be easily positioned at the front of the fiber basket
after the tube is positioned in the basket. If needed, the
tranportation tube can be cut to length, or trimmed
approximately 4", if company practice is to wrap or
loop it just one time down into the fiber basket and then
up and over the bend-radius control. Alternately, the
uncut tube can be looped twice within the fiber basket,
then routed up and over the bend-radius control.

Trim

tube, if

needed

Feed tube

Transportation

tube

 35.   

Prepare splice tray, attach other end of transportation
tube.

 Again prepare the splice tray for tube attachment,

starting two new cable ties at the same tray corner as
before, using the 

outer 

tie-down slots. Overlap the

transportation tube onto the tray corner about 1"

 

(alongside the feed tube), 

then secure the tube to the 

tray with the two, new, positioned cable ties. 
If splicing is not performed at this time, wrap 
the pigtails in the tray per company and tray 
manufacturer instructions, and continue with 
Step 36. If splicing is to be performed at this 
time, proceed to Step 38.

Cable

ties

Use same tray

corner and two

NEW ties.

Transportation

tube for pigtails

(12 pigtails per tube

recommended)

Feed  buffer tube

Splice tray

 36.   

Perform tube management.

 Always keep tubing neat and free of kinks. To man-

age the tube slack, loop and store the tubes inside the fiber basket, and hang the
tube-end with the attached splice tray up over the bend-radius control near the top
of the backboard. If desired, starting at the splice tray, attach the length of trans-
portation tube to the feed tube with cable ties at short intervals, for easy joint tube
management. Allow the splice tray to rotate freely when looping the tubes for
storage, to avoid stressing and kinking the tubes, which could cause fiber damage.

 37.   

Close the pedestal (optional).

 If splicing or drop cable installation will be perform-

ed at a later time, do Steps 44-45 now to secure the splice tray(s) and to close the
pedestal. Go to Step 38 to perform splicing. Go to Step 46 to install drop cables.

Splicing Fibers at the CFDP Pedestal

 38.   

Obtain tools.

 Prepare the area for splicing, and assemble and prepare any equip-

ment and tools needed to splice fibers. Review all the cautions and warnings herein.

 39.   

Open pedestal.

 Remove the dome and open the CO side door, per Steps 3 and 4.

 40.   

Remove the splice tray(s) from the backboard. 

Loosen the VELCRO

 straps that

secure the splice tray(s) and pull out the tray(s), unwinding/rotating it and the tubes
attached to it. Detach the clear plastic cover from the splice tray(s).

 41.   

Perform splicing.

 Unwrap the working fibers to be spliced, perform all fiber splicing

at this time, and when complete, route/place the spliced fibers back into the splice
tray(s), all per local/company practice and product manufacturer’s instructions.

 42.   

Label and identify splices/tray.

 Per company practice, label/identify the splices.

 43.   

Cover splice tray(s).

 Re-attach the cover(s) to the splice tray(s).

 44.   

Secure tray.

 Secure the splice tray(s) to the backboard. To do this, wind or rotate the

tubes and the tray(s) as needed to loop and store the tubing in the fiber basket, then
hang the splice tray(s) from the bend-radius control by routing the last foot of tubing
over the bend-radius control. Secure the tray(s) to the tabs at the front of the fiber
basket with the provided VELCRO

 straps. See Step 34 for alternate tube routing.

 45.   

Re-check foam plug placement and cable management, and close the pedestal.

Perform Steps 54 through 56 to carefully close up the pedestal.

Installing Fiber Drop Cables

 46.   

Dig trench from premises to pedestal.

 Per company practice, prepare a trench to

run the drop cable to the pedestal. Clear the soil from the bottom front of the base,
where the cable enters at the drop cable access hole.

 47.   

Run the drop cable.

 Route the preconnectorized drop cable through the trench to

the pedestal base. Verify 9 feet of cable will be available above the ground line.

 48.   

cables are routed through the base to their final
length), re-install the plug by placing it in front of the 
cables (cables at the back of the channel), angling the plug’s front edge down and
forward toward the first rib of the base front, and sliding it down and forward until it
rests on top of the base’s first rib. Press down on the plug’s back edge until it rests
on the bent flange at the rear of the channel.

Bring cable into base through drop cable
channel or conduit.

 Per company practice, route

the drop cable through the drop cable access
hole at the bottom front of the base and push it up
through the channel (or conduit) provided for the
drop cables. At the top of the channel, guide the
cable between the foam plug (installed at the top
of the channel) and the back wall of the channel.
If the plug dislodges during cable routing (after all

(Slide plug into

channel, set on

bent flange &

first rib of base)

Base Interior  View,

Front Half

Foam

plug

Channel, installed

Bent

flange

Drop cable

Drop cable hole

 49.   

Route cable through grommet. 

At the drop cable side

of the backboard, at the bottom grommet plate, pull or
slide out one of the double-port grommets. Feed the
preconnectorized cable through the grommet port by
slicing into the grommet port at the notch provided in it,
then pressing or sliding the drop cable into the grommet
port at the sliced notch. Slide the grommet down the
cable until it is at the level of the grommet plate. Rotate 
and align the grommet with its 
slot, and re-insert the 
grommet into the grommet 
plate. Always populate or 
use the rear-most ports 
first, for best hand and 
tool access and mobility.

Tie-down slot on bracket

(use with front grommet 

port to the right)

Rear

grommet

port

Front

grommet

port

Notch

Notch

Cable

mounting

bracket

Tie-down T on bracket

(use with front grommet 

port to the left)

Tie-down T

on rear wall

(use with rear

grommet ports)

 50.   

Secure cable to backboard

. Secure the cable to its appropriate tie-down T or

tie-down slot (see the drawing in Step 49) with a hose clamp. If cable ties are used,
per company practice, double the tie over the cable and T or slot, crisscross it, and
tighten the tie. Cables that are routed through rear grommet ports should use the
T’s on the backboard rear wall. T’s (and slots) are also provided on the cable
mounting brackets which are perpendicular to the back wall. Use the bracket T’s
and slots with the front grommet ports (the bracket T is used with the front port of
the grommet to the left of the bracket, and the bracket slot is used with the front
port of the grommet to the right of the bracket).

 51.   

Label drop cable

. Label the/all drop cable(s) with a cable marker or label. This

facilitates later cable identification for future troubleshooting, splicing, or rework.

 52.   

Route, secure, and connect drop pigtail.

 Route and loop the drop cable pigtail

around the inside perimeter of the drop side backboard and hang the last slack loop
from the bend-radius control. Size the loops so that the connector will easily (with-
out tension) reach the appropriate bulkhead adapter. Secure the cable to the back-
board tie-down slots with cable ties at regular intervals. Plug the first connector into
adapter 1 at the top front corner. Adapter 2 is directly below it in the same column.

 53.   

Prepare all drops. 

Repeat Steps 46-52 for all customer drop cables ready for

installation and connection at this time. 

If 

splicing is to be performed, go to Step 38.

 54.   

(Re)Place foam plug. 

Verify the foam plug is properly installed in the drop channel

(see Step 48). If it was removed or dislodged, re-install it at this time.

 55.   

Re-check cable management & lock inner door(s).

 Verify all tubing is neat and not

kinked, and that no cables, ties, wires or tubes protrude beyond the backboard walls.
Close and lock the inner doors by turning all cup-washer screws clockwise until tight.

 56.   

Close the pedestal.

 Locate the outer dome and orient it so the snap lock faces the

front (the Charles logo is on the base front). Slide the dome down over the back-
board, align the dome’s snap lock with the base’s latch catch, and allow the self-
locking dome to drop down in place. An audible click" indicates the dome is locked.

Table 1.   Branch or Stub-End Configuration Installation

Table 2.    Model Numbers and Ordering Information

Model #

CFDP

t

 Description

CFDP10-EL18

CFDP

 Interconnect Pedlock

 OSP Pedestal, with a 10" diameter, locking, exterior

dome, a square, 2-piece, expanded-capacity, split base, a weather-tight interior
enclosure with two locking doors, a removable backboard for fiber cable routing,
attachment, storage, and splicing (tray capacity = 5 trays/120 splices at 24 fibers per
tray), a pre-connectorized bulkhead with 18 SC/APC adapters, 4 single-port 1"
diameter feed grommets and 9 double-port 0.625" diameter drop grommets for 18
drops, one FOSC B splice tray, a ground/bond plate and two 3’ lengths of
transportation tubing. Includes all equipment shown herein.

CFDP10-EL18C

Same as above but with SC/UPC-type adapters in the interconnect bulkhead.

CFDP12-EL24

Same as CFDP10-EL18 but with 24 SC/APC adapters in the pre-connectorized
bulkhead, a 12" dome, 6 single-port 1" dia. feed grommets, 12 two-port 0.625"
diameter drop grommets for 24 drops, and an 8 tray capacity.

CFDP12-EL24C

Same as CFDP12-EL24 but with SC/UPC-type adapters in the bulkhead.

Optional Equipment for Use with CFDPs

97-SCAPC18PT
97-SCUPC18PT
97-SCAPC24PT
97-SCUPC24PT

Kit of 18 fiber pigtails: SC/APC-type connector, color-coded, 900 micron, 3 meters
Kit of 18 fiber pigtails: SC/UPC-type connector, color-coded, 900 micron, 3 meters
Kit of 24 fiber pigtails: SC/APC-type connector, color-coded, 900 micron, 3 meters
Kit of 24 fiber pigtails: SC/UPC-type connector, color-coded, 900 micron, 3 meters

97-001911-A
97-001753-A

97-PKOR010A

Grommets, feed-side type, one 1" port per grommet, 50-piece kit.
Grommets, drop side, middle type, 
two 0.625" ports per grommet, 50-piece kit
Dome cap, high visibility, orange, 10"

Strong durable solution for protecting wires
that are mounted to buildings and utility poles

PVC construction: lightweight and easy to cut

Various bends, lengths, offsets, and notches

Available in 7/8" and 1.25" diameters

Riser Pipes & U-Guards
119 series (7/8" risers)
122 series (7/8" U-guards)
219 series (1.25" risers)
222 series (1.25" U-guards)

Various replacement parts are available. Contact Charles Industries for more information.

Table 3.    Physical Specifications

Feature

10" dome models

12" dome models

Height, overall

50.5 in.

128.3 cm

50.5 in.

128.3 cm

Height, base only, incl. collar (stake only for IPS)

18.5 in.

47 cm

18.5 in.

47 cm

Height, dome only

35.5 in.

90.2 cm

35.5 in.

90.2 cm

Height, base bottom to ground line

8.5 in.

21.6 cm

8.5 in.

21.6 cm

Height, dome top to ground line

42 in.

107 cm

42 in.

107 cm

Depth, base (front to back)

12.8 in.

32.5 cm

15.1 in.

38.4 cm

Width, base (side to side)

13.9 in.

35.3 cm

16.1 in.

41 cm

Diameter, base collar, O.D.

10.75 in.

27.3 cm

12.75 in.

32.4 cm

Diameter, base collar, I.D.

10.3 in.

26.2 cm

12.3 in.

31.2 cm

Diameter, dome, O.D. 

(not the cap)

11.25 in.

28.6 cm

13.25 in.

33.6 cm

Diameter, dome, I.D.

10.85 in.

27.6 cm

12.85 in

32.6 cm

Weight

36 lbs.

16.4 Kg

44 lbs.

 20 Kg

NOTE:  All dimensions and weights are approximate.

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