Technical Publication
Installation Guidelines - – HELIAX® FiberFeed® Solutions
Fiber/Copper Hybrid Cables: HFE810 │ HFE212
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Section 1: Tools Required / System Overview ……….........…………………………………………………….…02
Section 2: Hoisting Considerations ……………………….....…………………….……………………………….…03
Section 3: General Specifications / Fiber Jumpers .......................……………………………………..………05
Section 4: LC Connection Considerations …............…………………………….…………………………….....06
Section 5: Breakout Procedure .......……………………..…………………………………………………………....07
Section 6: Cleaning / Inspecting ....……………………..…………………………………………………………....08
Section 7: Fiber Enclosure Assembly ……………………..…………………………………………………..………09
Section 8: Estimating Trunk Length / Excess Cable Handling ...........……………….……………………..……11
Section 9: Hanger / Jacketing Removal ...................................................................................………………13
Section 10: Minimum Grounding Requirements .....................................……………….……………………..……14
Section 11: Maintenance Check List .......................................……………………………………………….……15
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International: +1-779-435-8579
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Bulletin # 7680960
Rev. I
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Technical Publication
(Continued)
Tools Required
•
Fiber Optic Continuity Tester
•
Fiber Optic Cleaning Kit
•
Electrician Scissors
•
Shear Cutter – small
•
Long Nose Pliers
•
Flat Head Screwdriver – jewelry
•
Flat Head Screwdriver – large
•Voltmeter
•
Safety Glasses
•
Safety Gloves
•
Knife – blunt end preferred
•
Wire Brush or Low Grit Emery Cloth
•
1/2" Nut driver
•
Two adjustable wrenches (or M25 & M28 wrenches)
System Overview
Hybrid Configuration
•
Up to 4 RRUs per sector
•
Main Hybrid Cable is Terminated at both Ends
•
Armored jumpers from Junction Box to RRU
•
Fully Armored Cables from BBU to RRU
•
Lockable Junction Boxes
•
Quantity sixteen Multimode Fibers per 4 RRU trunk assembly
•
24 Fiber pair BBU patch panel kit (optional)
•
Install with standard tools and simple fiber tester
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Bulletin # 7680960
Rev. I
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Technical Publication
(Continued)
Hoisting Considerations
•
In general this cable will handle similarly to coaxial cable, and similar installation techniques apply. All cables are individually serialized, be sure to write down the cable serial number for future reference.
•
Leave the protective sock around the fiber tails and power conductors during hoisting and securing the cable.
•
Be sure that the Direct breakout is not damaged by attachment of a hoisting grip or during the hoisting process. Attach a hoisting grip on the jacketed cable no less than .3 m (1 ft) below the fiber breakout point. Prevent the fiber tails and power conductors from undue movement during hoisting by securing the protective sock with tie ropes every 1 m (3 ft) to the hoisting line.
•
During hoisting ensure that there is a free path and that the cable, and especially the end of the pulling sock will not be snagged on tower members or other obstacles.
•
Installation temperature range is -22 F to 158 F (-30 C to +70 C).
•
Minimum cable bend radii can be found on-line in our eCatalog section at www.commscope.com/andrew.
•
Maximum cable tensile load can be found on-line in our eCatalog section at www.commscope.com/andrew.
•
CommScope Lace-Up Hoisting Grip 19256B-C required for HFE trunk-series installations.
•
Hoisting Grip should be anchored to the support structure after the hangers are installed.
•
During final connections to RRU, do not bend the fiber ends tighter than 30 MM (1.2 IN) bend radius or you take the risk of breaking the glass fibers.
Hybrid Fiber Cables weigh more than traditional coaxial cables. Be sure to follow proper hoisting and !
attachment procedures.
Hoisting Recommendations
Fiber
Enclosure
Box
(D)
(D)
Grip
Location
Reminder: Plan grip
location by measuring
distance (D) from Fiber
Enclosure Box to tower
support member.
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Bulletin # 7680960
Rev. I
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Technical Publication
(Continued)
Hoisting Considerations
Tie back ropes
1 M (3 ft)
Protective
sock
Steel cable
or rope
hoist line
Maximum 60 M (200 ft)
between hoisting grips
Minimum
leader
5.3 M
(17 ft)
Clevis
!
Required
Hoisting
grip
Apply provided Tie
Wrap to the base of
the hoisting grip before
applying tension to
the line.
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Bulletin # 7680960
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Technical Publication
(Continued)
General Specifications
Cable Type
Center Conductor Gauge
Conductors, quantity
HFE212-4MEB-XX HFE212-4MET-XX
10 AWG
12 AWG
12 AWG
2
2
16
4
4
Corrugated aluminum
Corrugated aluminum
Corrugated aluminum
Multimode
Multimode
Multimode
750.0 kg/km | 510.0 lb/kft 220 kg/km | 150 lb/kft 220 kg/km | 150 lb/kft
27.8 mm | 0.68 in 13.5 mm | .53 in
13.5 mm | .53 in
Breakout Length, Fiber, end 1 500 mm | 19.7 in
2000 mm | 78 in
575 mm | 22.6 in
Breakout Length, Power, end 1 500 mm | 19.7 in
2000 mm | 78 in
250 mm | 9.84 in
Breakout Length, Fiber, end 2 500 mm | 19.7 in
500 mm | 19.69 in
500 mm | 19.69 in
Breakout Length, Power, end 2 500 mm | 19.7 in
500 mm | 19.69 in
500 mm | 19.69 in
557 mm | 21.9 in 269 mm | 10.6 in 269 mm | 10.6 in
135 mm | 5.3 in
135 mm | 5.3 in
Total Fiber Quantity
Armor Type
Fiber Type
HFE810-16MEE-XXX
8
Dimensions
Cable Weight
Diameter Over Jacket
Physical Specifications
Minimum Bend Radius, loaded
Minimum Bend Radius, unloaded
278 mm | 11 in
Tensile Load, long term, maximum
801 N | 180 lbf 200 N | 451 lbf 200 N | 451 lbf
Tensile Load, short term, maximum
2700 N | 600 lbf 667 N | 1501 lbf 667 N | 1501 lbf
Jumper Assemblies
•
In general this cable will handle similarly to a 1/2” coaxial cable.
•
The terminated fiber ends however are fragile and must be protected during installation. Leave the packaging around the fiber ends in place until ready to connect the jumper between OVP box and RRU or BBU.
•
DO NOT BEND THE FIBER ENDS (in the furcation tubes) TIGHTER THAN 1.2" (30mm) BEND RADIUS ELSE THERE IS A RISK OF BREAKING THE GLASS FIBERS.
•
Attach the main cable securely to the structure or equipment using hangers and/or cable ties to prevent strain on connections from movement in wind or snow/ice conditions.
•
Ensure the LC fiber connectors are seated firmly in the OVP box, RRU or in BBU equipment.
•
Ensure the weatherproof boots for both fiber and power connections and seated firmly in the RRU.
•
Heat shrink tube of the jumper should be 1" (25.40mm) inside of the OVP box.
•
Installation temperature range is -22F to 158F (-30C to 70C).
•
Minimum cable bend radii can be found in this document or on-line.
•
All jumpers are individually serialized, for immediate access to test results visit www.commscope.com/webtrak/
•
Power connector is supplied with the RRU
•
Grey power conductor is -48V
•
Blue power conductor is 0V (RTN)
•
RRU/BBU connectivity per OEM instruction
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Bulletin # 7680960
Rev. I
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Technical Publication
Huawei Radio
(Continued)
HFE212-4MEB-XX (Bottom Jumper)
Power Conductors
2
2
LC Duplex Connector
1
1
END 1 (BBU)
END 2 (Junction box)
Identification sheaths
added to END 1
after February 2014
2
1
Huawei Radio
2
1
HFE212-4MET-XX (Top Jumper)
Power Cord
(preparation dimensions vary per
RRU verify before prepping)
Power Conductors
2
2
LC Duplex Connector
1
1
END 1 (RRU)
END 2 (Junction box)
Fiber routing
Power cord
preparation dimensions
Max
70 mm
+
2600 RRU
800 RRU
Fiber subunit that enters
from the left should
route to the right.
-
Min
2 mm
Fiber subunit that
enters from the right
should route to the left.
*Velcro is provided with the jumper for cable management within the RRU. Lid will require a little pressure to close.
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Bulletin # 7680960
Rev. I
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Technical Publication
(Continued)
Breakout Procedure
After the trunk cable has been installed and
you are ready to make the final connection
to the OVP box follow these steps for the
removal of fiber protection tube.
1
Remove electrical tape
from the trunk cable and
corrugated protection
tube
2
3
While holding the protection tube straight
pull the tube away from cable.
After you have pulled the fiber and power
conductors into the OVP box remove electrical
tape from the trunk cable and remove clear tube
for access to all optical connectors.
LC Connectors and Adapter cleaning
Clean exposed connector ferrule by lightly moistening lint-free wipe with fiber optic cleaning solution (or >91%
isopropyl alcohol), and by applying medium pressure, first wipe against wet area and then onto dry area to clean
potential residue from end face. Clean connector ferrule inside adapter by inserting lightly moistened cleaning stick
with fiber optic cleaning solution (or >91% isopropyl alcohol) inside the adapter until contact is made with connector on
opposite end. Rotate cleaning stick with medium pressure in one circular motion as it is pulled away from the adapter.
Repeat process using dry cleaning stick.
Caution: Signal strength will be affected if end and sides of ferrule are not thoroughly cleaned. Discard cleaning
sticks after each use. Do not turn cleaning sticks back and forth pressing against connector end face. This may cause
scratches if large contamination is present. Always inspect connector end face for contamination after each cleaning.
Clean Sides of Ferrule
Clean Tip of Ferrule
Clean adapter by inserting adapter cleaning stick (or fiber adapter sleeve brush) moistened with fiber optic cleaning
solution (or >91% isopropyl alcohol) inside the adapter and gently pull out with twisting motion. Repeat process with a
dry cleaning stick.
Caution: Do not try to clean adapter with a standard pipe cleaner. The sleeve inner diameter of LC adapters is too
small. Do not try to clean the adapter with cleaning stick if a connector is mounted in one side. Discard cleaning sticks
after each use.
Adapter Brush
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Bulletin # 7680960
Rev. I
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Technical Publication
(Continued)
All in one cleaner
Device designed for cleaning the ferrule end faces of LC connectors
Open guide cap, insert LC connector into guide, push the outer shell to start cleaning the LC connector interface, a
"click" sound indicates end of a cleaning process, repeat, close cap immediately after use.
Caution: Be careful not to slant LC connector while inserting into the Guide cap. Do not overly exert force during
insertion as this may cause damage to both the connector and the cleaner.
LC Connector
Cap
Guide
Part Number: FCCT - L
Push Cleaner X2
Inspecting
There are 3 basic principles that are critical to achieving an efficient fiber optic connection:
1. Perfect Core Alignment
Scan to
view video
2. Physical Contact
3. Pristine Connector Interface
Today’s connector design and production techniques have eliminated most of the challenges to achieving
core alignment and physical contact. What remains challenging is maintaining a pristine end-face. As a result,
CONTAMINATION is the #1 reason for troubleshooting optical networks.
Implementing the process of cleaning and inspecting before mating can reduce the time spent troubleshooting,
optimize signal performance and prevent damage.
Clean
Inspect
Clean
Is It
Clean?
No
Yes
Connect
Abrasive particles (i.e. rock dust) can
cause permanent damage to the
interface. If interface is scratched it cannot
be repaired, it would need to be replaced.
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Bulletin # 7680960
Rev. I
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Technical Publication
(Continued)
Fiber Enclosure Assembly
Cable Management Clips
•
Hinged cover
•
Lockable latches
•
Four position Fiber Terminal Strip
• Eight position Power Terminals to each polarity
Fiber
! Make sure terminal Connection Panel
jumper is located in
Blue terminal block
•
One main Hybrid Feed Thru’s; Four Hybrid Jumper Feed Thru’s
•
Earthing of junction box not required
•
Tighten glands to full closure on tails
Tails
Trunk
Front
Back
1
2
3
4
5
6
7
8
-48V Supply 0V Return
Gray (left) Blue (right)
C
A
Hybrid Trunk
Cable Entry Port
Proper Routing
D
B
4 - Hybrid
Tail Entry
Port
A
B
C
D
1
2
3
4
#1
#2
#3
#4
#5
#6
1
2
3
4
5
6
ABCD
#4
#3
#2
#1
#4
#3
4
8
Service
loops
4 - Grey
Conductors
4 - Blue
Conductors
#7
#8
#7
#8
3
7
#5
#6
#3
#4
#1
#2
2
6
#2
#1
#4
#3
#2
#1
#4
#3
#2
#1
1
5
7
8
Enhanced wiring view
A
C
B
D
! Gland torque spec 5 N•m (44.2 lb-in)
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Bulletin # 7680960
Rev. I
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Technical Publication
(Continued)
Pipe Mounting Kit:
44mm − 114mm OD (1.75" − 4.5" OD)
Enclosure
Assembly
Back
Clamp Mount
Included are the following:
2 - Back Clamp Mount
Threaded
Rod
2 - Front Clamp Mount
4 - 3/8" X 7" SS Threaded Rod
8 - 3/8" SS Lock Washer
12 - 3/8" SS Nut
4 - 1/4-20 Screw
4 - 1/4" SS Lock Washer
4 - 1/4" SS Flat Washer
Front
Clamp
Mount
Insert All Thread Rod into the Back Clamp
Mount and attach from both sides with Lock
Washer then tighten with 3/8" nut (4 locations).
Attach Back Clamp Mount to the Enclosure
Assembly by placing it over the mounting
feet bosses and secure with Flat Washer, Lock
Washer and ¼ - 20 Screw (4 locations - max
torque 2.26 N•m − 20 lb-in).
3/8 Lock Washer
and Nut
Place Front Clamp Mount around the pipe and
secure with 3/8" Nut and Lock Washer. Tighten
securely (4 locations).
Flat Washer
Lock Washer
1/4-20 Screw
Enclosure
Assembly
Wall Mounting Kit:
Anchor
Included are the following:
1 - WALL ANCHOR KIT
Drill the appropriate hole in the wall or structure
you wish to mount to. Insert the Anchor into the
hole and place Enclosure Assembly against the
wall. Secure the Enclosure Assembly with the
Finish Washer and Oval Head Screw as shown.
1/4 Finish
Washer
1/4 Oval
Head Screw
When assembly is completed
tighten lid screws (qty 4)
(0.6 N•m − 5 lb-in)
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Bulletin # 7680960
Rev. I
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Technical Publication
(Continued)
Estimating Trunk Length
(D4)
(D3)
(D2)
Length (L) should be determined by measuring the trunk cable
from the base of the Fiber Enclosure Box to the Cabinet.
Tower:
(D1)
• Fiber Enclosure Box to tower taking in account vertical andhorizontal lengths to get to the cable ladder
•
Vertical length to bottom bend towards cabinet
•
Horizontal length from cable ladder to cabinet base
(L) = (D1) + (D2) + (D3) + (D4)
Excess Cable Management (option 1)
Coiled
Hybrid
Trunk
(D)
• (D) min bend radius
• Secure coil with qty: 4 equally spaced 50 lb UV rated tie wraps
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Bulletin # 7680960
Rev. I
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Technical Publication
(Continued)
Excess Cable Management (option 2)
If length of cable installed needs to be adjusted you can split the cable at the BBU end using the process below and
then coiling the excess fiber subunits in a storage box. Fiber management trays are available to manage any excess
fiber length in the breakouts at the BBU.
1. Mark cutback length
3. Place rip cord in notches'
2. Notch armor using flush cutter in-line with Kevlar strings
4. Pull rip cord parallel to cable (while supporting
Excess Fiber
storage Box
Part Number:
FE-14126-E
breakout)
Fiber management
tray, Part Number:
FE-14192-IR
5. Stop at length marker
6. Separate armor
Cable Splitter tool
Part Number:
FA-RCRT-PD
7. Cut armor using side cutter
8. Remove water blocking tape
NOTE:
Step can be
expedited by using
a sewing seam
ripper that can be
purchased at local
hobby stores
9. Remove excess rip cord
Seam Ripper
10. Apply electrical tape to protect breakout
NOTE:
Remember to slide
identifier labels
down the power
conductors before
trimming the cable
to it’s final length
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Bulletin # 7680960
Scan to
view video
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to view video
Rev. I
12
Technical Publication
(Continued)
Hangers
Trunk Hanger:
L5CLICKB
1 Hanger required every 1m (3ft)
Jumper Hanger:
43211A
Jacketing Removal Procedure for Grounding Kit Installation
1. Score the jacketing 360º
2. Measure 2” (51 mm) and repeat
3. Identify where the aluminum shielding overlaps, this will feel like a flat spot in the cable
4. With a knife flat on the cable remove a section of jacketing between score marks
5. Lift edge of jacketing with knife tip
6. Grab lifted edge of jacketing with a pair of pliers and roll on the cable
7. Remove excess adhesive with a piece of emery cloth
Scan to
view video
Click here
for video
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Bulletin # 7680960
Rev. I
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Technical Publication
(Continued)
Minimum Grounding Requirements
Ground Kit UG12158-15B4-T is a universal
solution for all HELIAX® FiberFeed® trunk cables.
Only use Tin Plated grounding kits supplied
and approved by CommScope.
Ground kits required at the top and bottom
before entering the shelter / cabinet
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Bulletin # 7680960
Rev. I
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Technical Publication
(Continued)
Maintenance Check List
HFE Trunks
Hangers and grommets securely fastened
No damage to cable jacket
Grounding kits securely connected and weatherproofing intact
Labels securely attached
Junction Boxes
Box mounting secure
All electrical terminals secure
All fiber connections seated correctly
All cable entry glands tight and cables secure
Box securely latched closed using both top and bottom latches and tighten lid screws to 0.6 N●m
(5 lb-in) so there are no sign of water or dirt ingress
HFE Jumpers
All jumper supports secure
No damage to cable jacket
Grounding kits securely connected and weatherproofing intact where installed
RRU connection cover secure and no signs of water or dirt ingress
RRU DC and fibre connections secure and seated properly
Labels securely attached
Customer Service 24 hours
CommScope
North America: +1-800-255-1479 (toll free)
Any country: +1-779-435-6500
email: acicustomersupportcenter@commscope.com
1100 CommScope Place SE P.O. Box 339, Hickory, NC 28603-0339
(828) 324-2200 (800) 982-1708
www.commscope.com/andrew
Notice: CommScope disclaims any liability or responsibility for the results of improper or unsafe installation, inspection, maintenance, or removal practices.
Aviso: CommScope no acepta ninguna obligación ni responsabilidad como resultado de prácticas incorrectas o peligrosas de instalación, inspección, mantenimiento o retiro.
Avis : CommScope décline toute responsabilité pour les conséquences de procédures d’installation, d’inspection, d’entretien ou de retrait incorrectes ou dangereuses.
Hinweis: CommScope lehnt jede Haftung oder Verantwortung für Schäden ab, die aufgrund unsachgemäßer Installation, Überprüfung, Wartung oder Demontage auftreten.
Atenção: A CommScope abdica do direito de toda responsabilidade pelos resultados de práticas inadequadas e sem segurança de instalação, inspeção, manutenção ou remoção.
Avvertenza: CommScope declina eventuali responsabilità derivanti dell’esecuzione di procedure di installazione, ispezione, manutenzione e smontaggio improprie o poco sicure.
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Bulletin # 7680960
Rev. I
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