Indoor Outdoor Fibre Optic Cable

RapidConnect® W-Series Indoor/Outdoor Fibre Optic Cable combines tight-buffered construction with water-blocking yarn and a black UV-resistant LSZH outer jacket. Available in OS2 Singlemode and OM4 Multimode, it provides straightforward termination across indoor and protected external commercial pathways.

SKU: Wxx-xx

Attachments

File File size
Indoor-Outdoor-Cable-W-Series 2 MB

Indoor Outdoor Fibre Optic Cable

Indoor Outdoor Fibre Optic Cable provides a practical solution for fibre pathways that transition between commercial building interiors and protected external environments without passing through telecommunications pits.

The RapidConnect W-Series combines a tight-buffered distribution construction with a black, UV-resistant LSZH outer jacket and super-absorbent water-blocking yarn. Therefore, contractors can use one versatile cable across many suitable indoor and protected outdoor pathways without automatically introducing a building-entry splice.

The W-Series is positioned for dry, protected commercial pathways such as:

  • Internal building pathways
  • Covered external pathways
  • Above-ground conduit between buildings
  • Enclosed cable pathways
  • External wall conduit
  • Protected cable tray
  • Building-entry pathways that do not involve pits
  • Commercial routes transitioning between indoor and suitable outdoor environments

This distinction is critical. “Indoor/outdoor” does not mean that the cable suits every outdoor environment. Instead, it means that the cable combines features required for indoor installation with an outer jacket designed for suitable protected external exposure.

The current W-Series range focuses on two modern fibre types:

  • OS2 Singlemode for longer distances, building backbones and networks requiring substantial expansion capacity
  • OM4 Multimode for high-speed connections over shorter distances within commercial, campus and data-network environments

By concentrating on OS2 and OM4, the W-Series provides a clear and contemporary choice for consultants, contractors and network integrators.

What Is Indoor Outdoor Fibre Optic Cable?

Indoor outdoor fibre optic cable is designed for cable routes that transition between internal spaces and suitable protected external environments.

For example, a commercial pathway might begin in an internal communications room, continue through enclosed external conduit attached to a building and then enter another internal telecommunications space.

An ordinary indoor cable may not provide the UV resistance needed for the external section. Conversely, a heavy outside-plant cable may introduce unnecessary preparation, size or termination complexity once the cable enters the building.

RapidConnect W-Series Indoor Outdoor Fibre Optic Cable addresses this challenge through a versatile tight-buffered construction. It combines installer-friendly fibre access with a UV-resistant LSZH outer jacket and dry water-blocking yarn.

As a result, the W-Series provides several practical advantages:

  • One continuous cable through suitable indoor and protected outdoor pathways
  • Easier preparation than many gel-filled loose-tube designs
  • Reduced need for an intermediate building-entry splice
  • A black UV-resistant LSZH outer jacket
  • Dry water-blocking yarn
  • OS2 Singlemode and OM4 Multimode options
  • Multiple fibre counts
  • A compact distribution-style construction
  • Practical installation within commercial buildings
  • Suitability for external pathways that remain protected from excessive water

However, the W-Series must not be installed through telecommunications pits. Where a route includes one or more pits, use the RapidConnect TR-Series Mini Loose Tube Fibre Optic Cable or another cable specifically selected for that pathway.

Defining a Suitable W-Series Pathway

Correct W-Series positioning depends on a clear understanding of the pathway.

A suitable route protects the cable from excessive water, direct burial conditions, significant mechanical damage and other environmental risks beyond the cable’s intended construction.

Appropriate pathways may include:

  • Internal cable tray
  • Internal conduit
  • Communications risers
  • Enclosed building pathways
  • Above-ground external conduit
  • Conduit secured to an external wall
  • Covered cable tray
  • Protected building links without pits
  • Enclosed bridges or walkways between buildings
  • Weather-protected cable routes
  • Building-entry conduits that do not connect through pits

In contrast, an unsuitable pathway includes:

  • Telecommunications pits
  • Underground pit-and-pipe systems
  • Flooded conduit
  • Direct burial
  • Exposed soil
  • Permanently wet environments
  • Unprotected external routes
  • Rodent-prone pathways without additional protection
  • Pole-to-pole aerial spans
  • Heavy industrial infrastructure requiring armour
  • Fire-survival circuits

This clear boundary prevents the term “indoor/outdoor” from creating an incorrect impression. The W-Series supports controlled transitions between environments. It does not replace a purpose-designed outside-plant cable.

Why Telecommunications Pits Require a Different Cable

Telecommunications pits frequently contain water. Rain, surface runoff, groundwater, condensation and damaged conduit seals can all contribute to water accumulation.

Moreover, the water may remain in a pit for extended periods. As a result, any cable passing through that environment may face prolonged or repeated moisture exposure.

Even when a pit appears dry during installation, conditions can change after:

  • Heavy rainfall
  • Local flooding
  • Drainage failure
  • Ground movement
  • Landscaping work
  • Building construction
  • Conduit damage
  • Changes to surrounding surface levels

Therefore, the cable must suit the actual long-term environment rather than the conditions observed on installation day.

The W-Series contains water-blocking yarn, but this feature does not make the cable suitable for excessive water or pit installation. Water-blocking yarn provides limited internal moisture management if localised exposure occurs. However, it does not convert a tight-buffered commercial distribution cable into a cable intended for wet pit-and-pipe infrastructure.

If the route includes a telecommunications pit, specify the RapidConnect TR-Series Mini Loose Tube Fibre Optic Cable.

Why Use One Cable Across Indoor and Protected Outdoor Pathways?

Every additional cable transition introduces materials, labour, planning and testing.

When one cable cannot continue through the complete route, the installer may need to:

  1. Terminate the first cable at the environmental transition.
  2. Install an additional fibre enclosure.
  3. Prepare and splice each optical fibre.
  4. Install a second cable for the next part of the pathway.
  5. Protect and manage the splice.
  6. Test the additional connection.
  7. Document the new splice location.

That transition may be necessary when pathway conditions change. For example, a TR-Series Mini Loose Tube cable installed through external pits may terminate at a suitable building-entry enclosure before transitioning to an internal cable.

However, when the pathway remains dry and protected, the W-Series may continue across both environments.

Consequently, one continuous W-Series cable can reduce:

  • Splicing time
  • Splice enclosure requirements
  • Pigtails and splice protectors
  • Additional installation labour
  • Optical loss from extra connections
  • Testing requirements
  • Documentation requirements
  • Future maintenance points

The ability to avoid an unnecessary splice represents one of the W-Series’ strongest commercial benefits.

However, splice avoidance must never override correct cable selection. If the external route includes pits or excessive water, the cable should change to a construction that suits that environment.

Tight-Buffered Distribution Construction

The W-Series uses a tight-buffered distribution construction.

Each optical fibre has an individual tight buffer. These buffered fibres sit together within the cable alongside aramid yarn strength members and super-absorbent water-blocking yarn. A common black UV-resistant LSZH outer jacket surrounds the complete cable core.

This construction differs from a loose-tube cable. In a loose-tube design, the optical fibres sit inside one or more protective tubes. Depending on the product, manufacturers may use gel or dry water-blocking materials within or around those tubes.

Tight-buffered construction provides several advantages for commercial installers.

Easier Fibre Identification

Each fibre has an individual buffer. Therefore, installers can identify and organise the fibres during enclosure preparation.

Clear fibre identification supports:

  • Accurate splicing
  • Correct polarity
  • Easier testing
  • Better documentation
  • Simpler maintenance
  • Faster fault investigation

However, installers must still follow the relevant fibre colour sequence and project documentation.

Cleaner Cable Preparation

The W-Series uses dry water-blocking yarn rather than an overall cable flooding compound.

Consequently, installers do not need to clean overall filling gel from the cable core during routine preparation. This can create a cleaner working area and reduce preparation time.

Individual buffered fibres still require correct handling and cleaning before splicing or termination.

Direct Fibre Management

The buffered fibres can be organised within a suitable fibre enclosure or termination system. Therefore, the W-Series aligns well with many commercial structured-cabling practices.

The installer must still provide:

  • Correct cable anchoring
  • Strength-member retention
  • Bend-radius control
  • Fibre protection
  • Suitable splice trays
  • Clear fibre identification
  • Appropriate enclosure capacity

Compact Distribution Design

A distribution cable places multiple buffered fibres beneath one common jacket. As a result, it remains more compact than a breakout cable that provides a separate full jacket around each fibre.

This approach balances straightforward fibre access with manageable cable dimensions.

Faster Preparation

Tight-buffered construction can reduce the work required before splicing or field termination. Nevertheless, installers must use suitable cable-stripping tools and avoid damaging the buffered fibres.

For a more detailed explanation, read our guide to Tight Buffered Fibre Optic Cable.

Tight-Buffered Versus Loose-Tube Cable

Neither tight-buffered nor loose-tube construction is universally better. Instead, the pathway determines which cable design provides the more appropriate solution.

The W-Series tight-buffered construction suits commercial routes where easy termination and indoor/outdoor pathway flexibility remain important. However, the pathway must not include pits or excessive water.

The TR-Series loose-tube construction suits external conduit and duct pathways, including routes that pass through telecommunications pits.

Selection factor W-Series tight-buffered cable TR-Series mini loose-tube cable
Primary environment Indoor and protected external pathways External conduit and duct pathways
Telecommunications pits Not suitable Preferred where pits form part of the pathway
Fibre protection Individual tight buffers Fibres contained within PBT loose tubes
Preparation Direct and relatively clean Requires loose-tube preparation
Overall gel No overall cable flooding gel Gel contained within the fibre tubes
Water management Water-blocking yarn Loose-tube and dry water-blocking construction
Typical focus Commercial building connectivity External conduit and duct networks
Building entry Can continue indoors on suitable dry routes May require an appropriate transition
Termination Contractor-friendly tight-buffer access Requires loose-tube fibre management
Direct burial Not suitable Not suitable without conduit or duct
Best selection basis Protected pathway without pits Conduit or duct route involving pits

Where a route remains within buildings and protected external pathways, W-Series can provide an efficient solution.

However, when the conduit travels through telecommunications pits, select the TR-Series. This is the clearest and safest product-selection rule.

Our tight-buffered versus loose-tube fibre optic cable guide explains the broader differences between these constructions.

UV-Resistant Black LSZH Outer Jacket

The W-Series incorporates a black, UV-resistant LSZH outer jacket.

This combination supports installation across suitable internal and protected external environments. However, UV resistance and LSZH performance address different requirements.

What UV Resistance Provides

Ultraviolet radiation can damage unsuitable cable jackets over time. Prolonged sunlight exposure may contribute to:

  • Surface deterioration
  • Discolouration
  • Cracking
  • Loss of flexibility
  • Reduced jacket strength
  • Premature cable failure

A UV-resistant jacket helps the W-Series tolerate suitable external exposure. For example, the cable may run through above-ground conduit or another protective external pathway.

However, UV resistance does not make the cable suitable for every outdoor installation.

It does not provide:

  • Pit suitability
  • Waterproofing
  • Direct-burial protection
  • Rodent resistance
  • Crush protection
  • Aerial support
  • Fire survival
  • Heavy mechanical armour

The complete cable construction and pathway must always be considered together.

What LSZH Means

LSZH means Low Smoke Zero Halogen. The term describes a jacket material formulated to produce limited smoke and very low halogen acid gas emissions under specified fire-test conditions.

LSZH jackets commonly appear in:

  • Commercial buildings
  • Communications rooms
  • Data centres
  • Educational facilities
  • Healthcare facilities
  • Public buildings
  • Industrial facilities
  • Transport infrastructure

These environments often prioritise smoke reduction and reduced corrosive gas emissions.

However, LSZH does not define the cable’s complete fire performance. It also does not prove that a cable will continue operating during a fire.

Therefore, consultants should identify the exact smoke, halogen and flame requirements within the project specification.

If a communication circuit must maintain operation during a fire, select an appropriately tested Fire Resistant Fibre Optic Cable.

For more information, read LSZH Fibre Optic Cable Explained and our LSZH versus PVC cable comparison.

Understanding the Water-Blocking Yarn

All RapidConnect W-Series cables contain super-absorbent water-blocking yarn.

If moisture reaches the cable core through localised jacket damage, the material absorbs the liquid and expands. This swelling action helps restrict longitudinal moisture migration along the cable.

The dry water-blocking yarn also supports cleaner termination preparation because the cable core does not require an overall flooding compound.

However, the water-blocking yarn serves as an additional protective feature. It does not define the W-Series as a wet-environment cable.

Most importantly:

RapidConnect W-Series Indoor/Outdoor Fibre Optic Cable is not suitable for installation through telecommunications pits or pathways exposed to excessive water.

The cable should remain within dry, controlled and protected pathways.

What Water-Blocking Yarn Does

Water-blocking yarn can:

  • React to localised moisture exposure
  • Absorb a limited amount of liquid
  • Expand within the cable core
  • Help restrict longitudinal moisture migration
  • Provide dry internal water-blocking support
  • Avoid the need for overall cable flooding compound

What Water-Blocking Yarn Does Not Do

Water-blocking yarn does not:

  • Make the cable waterproof
  • Make it suitable for pits
  • Make it suitable for flooded conduit
  • Approve the cable for direct burial
  • Replace correct cable-entry sealing
  • Guarantee performance under prolonged immersion

Aramid Yarn Strength Members

The W-Series uses aramid yarn as its tensile strength member.

Aramid yarn helps carry pulling loads during installation. Therefore, excessive pulling force does not need to pass through the optical fibres.

The yarn also supports a lightweight, flexible and non-metallic cable design. However, aramid yarn is not armour.

It does not provide the mechanical protection offered by:

  • Glass-reinforced plastic armour
  • Corrugated steel tape
  • Steel wire armour
  • Heavy protective sheaths
  • Purpose-designed rodent barriers

During installation, contractors should:

  • Use an appropriate cable pulling grip
  • Transfer pulling force to the strength members
  • Control pulling tension
  • Avoid sudden loading
  • Protect the cable at conduit entries
  • Use suitable rollers
  • Maintain the required bend radius
  • Stop the pull if resistance increases unexpectedly
  • Avoid twisting the cable
  • Prevent the cable from scraping against sharp edges

The strength members support correct installation. However, they cannot compensate for an obstructed or poorly designed pathway.

OS2 Singlemode Indoor Outdoor Fibre Optic Cable

OS2 Singlemode is the preferred W-Series option for longer links, building backbones and networks that require strong future expansion potential.

Singlemode fibre uses a small optical core that supports one primary propagation mode. Therefore, it can carry optical signals over much longer distances than multimode fibre when paired with suitable transceivers.

Common OS2 W-Series applications include:

  • Internal building backbones
  • Protected building-to-building connections
  • School and university campuses
  • Business parks
  • Commercial properties
  • Warehouses
  • Factories
  • Security and CCTV backbones
  • Building-management systems
  • Longer network links
  • Networks requiring future bandwidth growth

Where any interbuilding route involves telecommunications pits, use OS2 within the TR-Series Mini Loose Tube construction instead of the W-Series.

Why Select OS2?

OS2 provides several strategic advantages:

  • Long transmission distances
  • Broad transceiver availability
  • Strong future expansion potential
  • Suitability for commercial backbones
  • Support for campus networks
  • Reduced concern about modal bandwidth limitations
  • Compatibility with many telecommunications applications
  • Flexibility across multiple network speeds

However, the cable alone does not determine supported distance.

The complete optical link includes:

  • Transmitters
  • Receivers
  • Wavelength
  • Connector loss
  • Splice loss
  • Patch leads
  • Adaptor loss
  • Cable attenuation
  • Design margin

Therefore, designers must confirm the total optical power budget.

OS2 for Future Network Expansion

OS2 can provide a valuable foundation when the future network speed remains uncertain.

A building owner may initially operate a Gigabit Ethernet link and later upgrade the transceivers and network equipment. If the installed OS2 fibres remain within the required loss budget, the same cable infrastructure may support the upgraded application.

Consequently, OS2 can reduce the likelihood of replacing the backbone solely because network bandwidth has increased.

OM4 Multimode Indoor Outdoor Fibre Optic Cable

OM4 Multimode supports high-speed optical transmission over shorter distances.

It commonly suits commercial buildings, equipment rooms, data centres and compact campus environments. In addition, OM4 can provide an economical system when the required distance aligns with the selected multimode transceivers.

Common OM4 W-Series applications include:

  • Internal building backbones
  • Data centres
  • Communications rooms
  • Equipment-room connections
  • Short protected building links
  • Commercial networks
  • Factory and warehouse networks
  • Security infrastructure
  • Wireless network backbones
  • High-speed local network links

Again, the pathway determines the cable construction. If an OM4 link passes through telecommunications pits, specify OM4 within the TR-Series Mini Loose Tube cable rather than the W-Series.

Why Select OM4?

OM4 provides several benefits:

  • Support for high-speed short-reach applications
  • Cost-effective multimode transceivers
  • Suitability for commercial building backbones
  • Familiar termination practices
  • Familiar testing methods
  • Strong application support within data environments
  • Clear separation from legacy multimode classifications

However, network speed and distance remain connected.

A link length that supports one application may exceed the allowable reach of a higher-speed application. Therefore, confirm:

  • Required Ethernet speed
  • Total channel length
  • Transceiver specification
  • Connector count
  • Splice count
  • Cable route
  • Future equipment plans

OS2 Versus OM4

The correct fibre type depends on distance, network equipment, architecture and future requirements.

Requirement OS2 Singlemode OM4 Multimode
Typical role Longer links and backbones Shorter high-speed links
Fibre construction Singlemode Multimode
Transmission reach Generally much longer Application-dependent shorter reach
Typical optical source Singlemode laser Multimode VCSEL
Transceiver cost Can be higher for short links Often economical for short-reach links
Expansion potential Excellent across longer distances Strong within supported distance limits
Typical W-Series use Building backbone or protected interbuilding route Internal or short protected interbuilding route

Choose OS2 when:

  • The link distance is longer
  • Future network requirements remain uncertain
  • The link forms part of a campus backbone
  • Singlemode equipment already exists
  • Maximum infrastructure flexibility matters

Choose OM4 when:

  • The link is relatively short
  • The network uses multimode equipment
  • Short-reach transceiver economics matter
  • The supported application distance has been confirmed
  • The route primarily remains within a building

Do not select fibre type based only on cable price. Instead, compare the complete system, including active equipment, patch leads, testing and future expansion.

Available Fibre Counts

The W-Series supports multiple fibre counts for commercial installations.

Available constructions may include:

  • 2 fibres
  • 4 fibres
  • 6 fibres
  • 8 fibres
  • 12 fibres
  • 24 fibres
  • 48 fibres

Availability may vary according to fibre type and current stock. Therefore, confirm the required OS2 or OM4 configuration with Anderson Corporation before finalising the project.

Choosing the Correct Fibre Count

The minimum fibre count must support the links required at commissioning. However, the network design should also include practical spare capacity.

Spare fibres may support:

  • Future network switches
  • Additional communications rooms
  • Redundant links
  • Security systems
  • Wireless access infrastructure
  • Building-management systems
  • Fault recovery
  • Equipment migrations
  • Network expansion

Installing spare fibres during the original project usually costs less than installing another cable later.

However, an unnecessarily high fibre count can increase:

  • Cable diameter
  • Cable cost
  • Enclosure requirements
  • Splice capacity
  • Testing time
  • Documentation requirements

A balanced selection considers:

  1. Current active fibre requirements
  2. Network redundancy
  3. Expected future growth
  4. Enclosure capacity
  5. Pathway space
  6. Project budget
  7. Difficulty of future cable installation

For many commercial backbones, 6-, 12- or 24-fibre cable provides useful capacity. Nevertheless, the correct count depends on the network architecture.

W-Series Product Identification

RapidConnect W-Series product codes identify the cable family, fibre type and fibre count.

Examples include:

  • WS2-06: W-Series, OS2 Singlemode, 6 fibres
  • WS2-12: W-Series, OS2 Singlemode, 12 fibres
  • WS2-24: W-Series, OS2 Singlemode, 24 fibres
  • WM4-06: W-Series, OM4 Multimode, 6 fibres
  • WM4-12: W-Series, OM4 Multimode, 12 fibres
  • WM4-24: W-Series, OM4 Multimode, 24 fibres

Confirm the final product code, stock availability and current specification when requesting a quotation.

The current W-Series range focuses on OS2 Singlemode and OM4 Multimode.

Indicative W-Series Physical Specifications

Cable diameter and weight vary according to fibre count.

Fibre count Nominal outer diameter Approximate cable weight
2 fibres 4.0 mm 12 kg/km
4 fibres 4.0 mm 14 kg/km
6 fibres 5.0 mm 21 kg/km
8 fibres 5.5 mm 27 kg/km
12 fibres 6.0 mm 33 kg/km
24 fibres 8.0 mm 57 kg/km
48 fibres 10.5 mm 98 kg/km

The published W-Series construction also specifies:

  • Tight-buffer diameter: 0.85 ± 0.05 mm
  • Strength member: aramid yarn
  • Water-blocking material: super-absorbent water-blocking yarn
  • Outer jacket: black UV-resistant LSZH
  • Maximum tensile loading: 600 N

Specifications may change as the range develops. Therefore, use the current datasheet and written quotation for final design and procurement.

Indoor Conduit Installation

The W-Series can be installed within suitable internal conduit.

Conduit protects the cable from contact, abrasion and accidental disturbance. However, the pathway must still provide:

  • Adequate internal space
  • Acceptable bends
  • Smooth cable entries
  • Controlled pulling conditions
  • Suitable supports
  • Accessible termination points
  • Separation from other services where required
  • Compliance with the project specification

Before installation, confirm the conduit diameter, cable diameter, cable quantity and pathway length.

The installer should also examine:

  • Conduit bends
  • Pulling points
  • Existing cables
  • Internal obstructions
  • Sharp edges
  • Entry fittings
  • Draw ropes
  • Termination access

A conduit that appears large enough may still create excessive pulling resistance if it contains several bends or other cables.

Protected External Conduit Installation

W-Series may suit external conduit when the conduit remains above ground, protected and free from telecommunications pits.

Examples may include:

  • Conduit secured to an external building wall
  • Above-ground conduit between closely positioned structures
  • Protected conduit beneath a covered walkway
  • Enclosed bridges between buildings
  • Weather-protected service corridors
  • External pathways that do not pass underground through pits

The conduit should protect the cable from direct impact and uncontrolled environmental exposure.

Furthermore, the installer should seal building entries and open conduit ends using suitable methods. However, the sealing system must not crush or chemically damage the cable jacket.

If the conduit enters the ground, connects to a pit or forms part of a conventional pit-and-pipe network, specify TR-Series Mini Loose Tube Fibre Optic Cable instead.

Building-to-Building Fibre Connections

W-Series can provide a practical building-to-building solution when the entire external route remains dry, protected and free from telecommunications pits.

For example, the cable may pass:

  • Through an enclosed bridge
  • Through a covered walkway
  • Along protected external cable tray
  • Through above-ground conduit
  • Through an enclosed service corridor
  • Between adjoining structures using sealed wall conduit

In these suitable installations, one continuous W-Series cable may run from the communications enclosure in Building A to the enclosure in Building B.

Consequently, the installer may avoid an intermediate splice.

However, if the route passes underground through pits, do not use W-Series. Select the TR-Series Mini Loose Tube cable for the external pit-and-pipe section.

Before selecting a building-to-building cable, assess:

  • Pathway type
  • Presence of pits
  • Expected water exposure
  • Total distance
  • OS2 or OM4 requirements
  • Fibre count
  • Mechanical protection
  • Cable supports
  • Entry sealing
  • Termination locations
  • Testing requirements
  • Future expansion

Read our guide to selecting fibre cable between buildings for further pathway guidance.

Commercial Building Applications

The W-Series supports a range of commercial network applications.

Office Buildings

Commercial offices often require fibre links between communications rooms, equipment areas and adjoining buildings.

W-Series can support these routes when the cable remains within internal or protected external pathways. Its tight-buffered construction also supports straightforward enclosure preparation.

Schools and Universities

Educational facilities may require fibre connections between:

  • Communications rooms
  • Administration areas
  • Classrooms
  • Libraries
  • Laboratories
  • Wireless network equipment
  • CCTV systems
  • Building-management equipment

OS2 suits longer campus links and networks requiring future expansion. Meanwhile, OM4 may suit shorter high-speed connections.

However, many campuses use underground pit-and-pipe pathways between buildings. In those cases, specify TR-Series Mini Loose Tube Fibre Optic Cable rather than W-Series.

Factories and Warehouses

Factories and warehouses often contain long internal pathways and multiple network cabinets.

W-Series can support fibre connections for:

  • Network switches
  • Wireless access points
  • CCTV
  • Security systems
  • Production monitoring
  • Building-management systems
  • Internal equipment rooms

However, the cable must remain within a suitable protected pathway. Where machinery, rodents, impact or crushing present a significant risk, select an armoured cable.

Business Parks

Business parks often use underground pits and conduit between separate buildings. Therefore, TR-Series Mini Loose Tube Fibre Optic Cable will generally provide the more suitable interbuilding cable.

W-Series may still support internal building distribution or protected external links that do not involve pits.

Security and CCTV Networks

Large surveillance systems can require fibre backbones between network cabinets, cameras and monitoring rooms.

W-Series OS2 or OM4 may support these links when the pathway remains suitable. Nevertheless, pit-based external routes require the TR-Series.

Data and Equipment Rooms

Tight-buffered construction makes W-Series practical for preparation within suitable fibre enclosures.

Consequently, the cable can support internal building backbones between:

  • Main communications rooms
  • Floor distributors
  • Data halls
  • Equipment rooms
  • Network cabinets
  • Security control rooms

External Wall Installations

The W-Series black UV-resistant outer jacket can support suitable external wall installations.

However, the cable should normally remain inside conduit, protected tray or another enclosed pathway.

External protection helps reduce the risk of damage from:

  • Building maintenance
  • Ladders
  • Tools
  • Vehicles
  • Sharp objects
  • Birds and animals
  • Wind movement
  • Unauthorised interference
  • Direct impact

The pathway should also support the cable at appropriate intervals. Supports must suit the cable diameter and must not compress the jacket.

At building entries:

  • Use smooth entry fittings
  • Protect the cable from sharp edges
  • Seal the penetration correctly
  • Maintain the cable bend radius
  • Allow suitable service loops
  • Keep the cable away from damaging heat sources
  • Follow the applicable building and cabling requirements

The W-Series should not remain loosely secured or directly exposed where foreseeable activities could damage it.

Where W-Series Must Not Be Used

Clear exclusions help prevent unsuitable product selection.

Telecommunications Pits

Do not install W-Series cable through telecommunications pits.

Pits can experience excessive and persistent water. Therefore, specify the RapidConnect TR-Series Mini Loose Tube Fibre Optic Cable for any conduit or duct route involving pits.

Flooded Conduit

Do not use W-Series in flooded conduit or a pathway expected to retain water.

Water-blocking yarn does not make the cable suitable for prolonged or excessive water exposure.

Underground Pit-and-Pipe Networks

W-Series is not the preferred cable for a conventional underground pit-and-pipe network.

Use TR-Series Mini Loose Tube Fibre Optic Cable for this environment.

Direct Burial

Do not place W-Series directly in the ground.

Direct burial exposes cable to soil pressure, water, rocks, digging, ground movement and biological attack. A purpose-designed direct-burial construction is required.

Rodent-Prone Pathways

W-Series does not incorporate dedicated rodent armour.

Where rodents present a material risk, consider GRP Armoured Rodent Proof Fibre Optic Cable or another suitable armoured construction.

Aerial Spans

W-Series is not self-supporting.

For pole-to-pole installation, specify an engineered ADSS Fibre Optic Cable with the correct span rating and hardware.

Fire-Survival Circuits

An LSZH outer jacket does not make W-Series a fire-survival cable.

If the optical circuit must continue operating during a fire, specify a tested Fire Resistant Fibre Optic Cable.

High Mechanical Risk

W-Series does not include heavy mechanical armour.

Where crushing, impact, penetration or heavy handling presents a significant risk, select a cable with appropriate protection.

Mining and Utility Infrastructure

Mining, power, transport and utility environments may require specialised mechanical, fire, chemical and environmental performance.

These projects require a cable specifically assessed against the complete specification.

W-Series Compared with Other RapidConnect Fibre Cables

RapidConnect offers different constructions because each pathway creates different risks.

Installation environment Recommended cable family
Indoor and protected external pathway without pits W-Series Indoor/Outdoor Fibre Optic Cable
External conduit or duct involving pits TR-Series Mini Loose Tube Fibre Optic Cable
Rodent-prone conduit or infrastructure GRP Armoured Rodent Proof Fibre Optic Cable
Demanding steel-armoured application CST Armoured Rodent Proof Fibre Optic Cable
Pole-to-pole aerial installation ADSS Fibre Optic Cable
Fire-survival communication circuit Fire Resistant Fibre Optic Cable
Factory-terminated deployment Pre-Terminated Fibre Optic Cable

The first question should always be:

Does the cable route include a telecommunications pit?

If the answer is yes, select the TR-Series Mini Loose Tube Fibre Optic Cable rather than the W-Series.

Common Cable-Selection Mistakes

Assuming Indoor Outdoor Means Every Outdoor Environment

The term describes a cable capable of transitioning between suitable indoor and protected outdoor environments.

It does not mean the cable is suitable for pits, direct burial, aerial spans or every external pathway.

Selecting W-Series for Pit-and-Pipe Installations

This is the most important selection mistake to avoid.

Telecommunications pits can contain excessive water. Therefore, select TR-Series Mini Loose Tube Fibre Optic Cable whenever pits form part of the route.

Treating Water-Blocking Yarn as Waterproofing

Water-blocking yarn helps limit internal moisture migration after localised exposure.

However, it does not make W-Series suitable for pit installation or prolonged immersion.

Choosing an Indoor Cable for External Exposure

An ordinary indoor cable may not contain a UV-resistant jacket. Consequently, it may degrade when installed in an external environment.

Choosing Fibre Type Without Confirming Distance

OM4 can provide an economical solution for shorter links. However, OS2 may provide better flexibility for longer routes or future network upgrades.

Installing Too Few Fibres

The cost of installing another cable may exceed the cost of providing spare fibres during the original project.

Therefore, consider growth and redundancy before selecting the fibre count.

Ignoring Mechanical Risk

A UV-resistant jacket does not provide armour.

If the route faces impact, rodents, crushing or other mechanical threats, select a protected cable construction.

Exceeding Pulling Limits

A cable can suffer damage before commissioning if installers exceed its tension or bend limits.

Plan the pulling process before installation.

Confusing LSZH with Fire Resistance

LSZH describes jacket smoke and halogen properties under relevant test conditions.

It does not mean the cable maintains optical operation during a fire.

W-Series Selection Checklist

Before specifying W-Series Indoor/Outdoor Fibre Optic Cable, confirm:

  • Does the route avoid all telecommunications pits?
  • Will the cable remain protected from excessive water?
  • Does the pathway remain dry and controlled?
  • Is the external section above ground or otherwise protected?
  • Does the cable require OS2 or OM4?
  • What transmission distance must the link support?
  • What network speed is required?
  • How many fibres are needed initially?
  • How many spare fibres should be included?
  • Does the route require rodent protection?
  • Does the route require mechanical armour?
  • Does any section involve an aerial span?
  • Does the network require fire survival?
  • What LSZH or flame requirements apply?
  • What maximum pulling tension applies?
  • What bend radius must installers maintain?
  • Are suitable termination enclosures available?
  • Will the cable be fusion spliced or field terminated?
  • What testing does the project require?
  • Can a continuous W-Series cable eliminate an unnecessary splice?

If the route includes pits, stop the W-Series selection process and specify TR-Series Mini Loose Tube Fibre Optic Cable.

Installation Planning

A successful installation begins before the cable arrives on site.

Inspect the Pathway

Inspect the complete route and verify:

  • Conduit diameter
  • Cable-tray capacity
  • Bend locations
  • Entry points
  • Pulling access
  • Existing cables
  • External exposure
  • Mechanical hazards
  • Water risks
  • Termination space

Most importantly, confirm that no telecommunications pits form part of the pathway.

Plan the Cable Pull

Before pulling:

  • Confirm the cable length
  • Position the drum correctly
  • Identify the pulling direction
  • Prepare suitable rollers
  • Protect cable entries
  • Confirm communication between workers
  • Identify bends and resistance points
  • Review maximum pulling tension
  • Review minimum bend radius

The cable should leave the drum smoothly. Moreover, installers should never pull the cable over the edge of a flange.

Control Pulling Tension

The current published specification lists a maximum tensile loading of 600 N.

However, installers should treat this value as a maximum limit rather than a routine pulling target.

Use a controlled pulling method and stop immediately if resistance increases unexpectedly.

Maintain Bend Radius

Excessive bending can introduce attenuation or permanent fibre damage.

Therefore:

  • Avoid sharp corners
  • Use suitable rollers
  • Maintain gradual direction changes
  • Do not kink the cable
  • Protect service loops
  • Support the cable inside enclosures
  • Follow the latest product specification

Protect Building Entries

Building penetrations require careful treatment.

The installer should:

  • Use suitable sleeves or conduit
  • Remove sharp edges
  • Seal the penetration
  • Maintain cable support
  • Avoid excessive compression
  • Preserve the bend radius
  • Comply with applicable fire-stopping requirements

Termination and Fibre Management

The W-Series tight-buffered design supports efficient fibre preparation.

A typical termination process includes:

  1. Confirm the cable identity and fibre count.
  2. Secure the cable before preparation.
  3. Mark the required jacket-removal length.
  4. Remove the outer jacket using suitable tools.
  5. Retain and anchor the aramid strength yarn.
  6. Remove the required water-blocking yarn.
  7. Identify each buffered fibre.
  8. Route the fibres into the appropriate management system.
  9. Prepare the fibres for splicing or field termination.
  10. Test and document every completed fibre.

Contractors should avoid excessive buffer stripping before the fibres reach the splice tray or termination point. The remaining buffer helps protect the fibre during management.

The cable must also be anchored so that external movement does not transfer force into the fibres.

Testing and Commissioning

Every installed fibre link should undergo appropriate testing.

The required test program depends on the project specification. However, it may include:

  • Connector inspection
  • End-face cleaning
  • Continuity testing
  • Fibre identification
  • Polarity verification
  • Optical loss testing
  • OTDR testing
  • Length confirmation
  • Event analysis
  • Test-result documentation

Test OS2 and OM4 links at the appropriate wavelengths and with suitable equipment.

Reference cords, launch cables and receive cables should also match the test method and fibre type.

A cable may appear physically intact while containing excessive loss caused by:

  • Tight bends
  • Pulling damage
  • Poor splices
  • Contaminated connectors
  • Incorrect reference procedures
  • Damaged adaptors
  • Incorrect fibre management

Therefore, visual inspection alone cannot confirm performance.

Record every test result against the relevant cable, fibre number and route. Accurate documentation simplifies commissioning, warranty applications and future maintenance.

RapidConnect 25-Year Enterprise Cabling Infrastructure System Warranty

Eligible W-Series installations can form part of the RapidConnect 25-Year Enterprise Cabling Infrastructure System Warranty.

A system warranty can provide additional confidence when approved components, installation practices, testing and documentation meet the program requirements.

However, eligibility is not automatic.

Confirm the applicable requirements before installation, including:

  • Approved products
  • Installer requirements
  • Design requirements
  • Termination components
  • Test methods
  • Test-result submission
  • Project registration
  • Required documentation

Contact Anderson Corporation before the project begins if the installation requires warranty coverage.

Indoor Outdoor Fibre Optic Cable Frequently Asked Questions

What is Indoor Outdoor Fibre Optic Cable?

Indoor/outdoor fibre optic cable suits routes that transition between internal spaces and suitable protected external environments.

The W-Series combines tight-buffered fibres, aramid strength members, water-blocking yarn and a black UV-resistant LSZH outer jacket.

Is W-Series suitable for telecommunications pits?

No. W-Series is not suitable for telecommunications pits because these environments can contain excessive and persistent water.

If the route involves pits, specify the RapidConnect TR-Series Mini Loose Tube Fibre Optic Cable.

Which cable should I use in pit-and-pipe conduit?

Use the TR-Series Mini Loose Tube Fibre Optic Cable for external conduit or duct routes involving telecommunications pits.

The TR-Series remains a conduit and duct cable. Therefore, it should not be installed as an unprotected direct-burial cable.

Can W-Series run between buildings?

Yes, provided the entire external route remains dry, protected and free from telecommunications pits.

Suitable examples may include above-ground conduit, an enclosed bridge or a covered external pathway.

Can W-Series eliminate a building-entry splice?

In suitable dry and protected installations, one continuous W-Series cable may pass through the external section and continue indoors.

Therefore, it can eliminate an unnecessary transition splice.

However, a pit-based external route requires a different cable selection.

Can W-Series be installed in conduit?

Yes, W-Series can be installed in suitable indoor or protected above-ground conduit.

It should not be installed through conduit connected to telecommunications pits or exposed to excessive water.

Is W-Series waterproof?

No. The W-Series contains water-blocking yarn, but it should not be described as waterproof.

The yarn helps restrict longitudinal moisture migration after localised exposure. It does not make the cable suitable for pits, flooded conduit or prolonged immersion.

What does the water-blocking yarn do?

The super-absorbent material reacts to moisture and expands. Consequently, it helps restrict water movement along the cable core.

This feature provides additional protection against incidental localised exposure.

Why include water-blocking yarn if the cable cannot enter pits?

Indoor/outdoor pathways may still face incidental moisture from condensation, localised leaks or damaged external conduit.

The yarn provides an additional protective measure. However, the cable should not face the excessive water associated with telecommunications pits.

Can I bury W-Series directly?

No. W-Series is not a direct-burial cable.

Select a cable specifically designed for the underground environment and provide the required protective pathway.

Is W-Series rodent resistant?

W-Series does not include dedicated rodent armour.

Where rodents present a significant risk, select a GRP- or steel-armoured fibre optic cable.

Can W-Series be installed aerially?

No. W-Series is not self-supporting.

For pole-to-pole installation, use an appropriately engineered ADSS Fibre Optic Cable.

Does LSZH mean that the cable is fire resistant?

No. LSZH describes smoke and halogen properties under specified test conditions.

A fire-resistant cable must meet separate fire-survival and circuit-integrity requirements.

Why does W-Series use a black jacket?

Black jacket compounds commonly support UV resistance. Therefore, the W-Series black UV-resistant outer jacket helps support suitable protected external exposure.

Is W-Series tight buffered or loose tube?

W-Series uses a tight-buffered distribution construction.

Each optical fibre has an individual tight buffer beneath the common outer jacket.

Is tight-buffered cable easier to terminate?

Tight-buffered construction generally simplifies fibre access, identification and preparation.

It also avoids cleaning overall flooding gel from the cable core.

Should I choose OS2 or OM4?

Choose OS2 for longer links, commercial backbones or strong future expansion potential.

Choose OM4 for shorter high-speed links using multimode optical equipment.

Does W-Series still use OM1 or OS1 fibre?

No. The current W-Series range focuses on OS2 Singlemode and OM4 Multimode. However, these can be custom manufactured.

How many fibres should I install?

Allow for current connections, redundancy and realistic future expansion.

In many commercial networks, spare fibres cost relatively little compared with installing an additional cable later.

What fibre counts are available?

The W-Series can support fibre counts from 2 to 48 fibres, subject to fibre type and availability.

Confirm the required OS2 or OM4 configuration when requesting a quotation.

What is the maximum tensile loading?

The current published W-Series specification lists a maximum tensile loading of 600 N.

Installers should confirm the latest datasheet and plan the pulling method before installation.

Can W-Series be field terminated?

The tight-buffered construction supports practical field preparation and termination.

However, the selected connectors, tools and installation method must suit the fibre type and project specification.

Can W-Series form part of a warranted system?

Eligible W-Series installations can form part of the RapidConnect 25-Year Enterprise Cabling Infrastructure System Warranty, subject to the program requirements.

Indoor Outdoor Fibre Optic Cable – Knowledge Centre

Choosing the right Indoor/Outdoor Fibre Optic Cable involves far more than comparing fibre type and fibre count. Instead, successful commercial fibre projects begin with understanding how cable construction, pathway conditions, jacket materials, installation practices and environmental exposure influence long-term performance.

That’s why Anderson Corporation continues to develop one of Australia’s most comprehensive knowledge centres dedicated to Indoor/Outdoor Fibre Optic Cable and commercial fibre pathways.

Whether you’re connecting communications rooms, designing a building backbone or installing cable through a protected external pathway, our technical articles help you make informed specification and installation decisions with confidence.

Most importantly, designers must distinguish protected indoor/outdoor pathways from underground pit-and-pipe infrastructure. RapidConnect W-Series Indoor/Outdoor Fibre Optic Cable is not suitable for telecommunications pits or pathways exposed to excessive water.

Where a conduit or duct route involves telecommunications pits, select the RapidConnect TR-Series Mini Loose Tube Fibre Optic Cable instead.

As our Knowledge Centre continues to grow, you’ll find practical guidance covering every stage of the specification, installation and lifecycle of Indoor/Outdoor Fibre Optic Cable.

Educational Guides

If you’re new to Indoor/Outdoor Fibre Optic Cable, these articles explain the fundamental materials, cable constructions and engineering principles used in modern commercial fibre networks.

You’ll learn how tight-buffered construction supports straightforward cable preparation and why LSZH jacket materials play an important role in enclosed commercial environments.

Technical Guides

Once you understand the fundamentals, you can explore the technical features that differentiate a purpose-designed indoor/outdoor cable from conventional indoor fibre.

For example, our technical guides examine UV-resistant LSZH outer jackets, tight-buffered construction, water-blocking yarn, aramid strength members, tensile loading and bend-radius requirements.

These guides will also explain the limitations of each feature. Although the W-Series includes dry water-blocking yarn, this does not make the cable suitable for telecommunications pits, flooded conduit or prolonged water exposure.

Comparison Guides

Sometimes selecting the right cable means understanding the alternatives.

Therefore, our comparison guides explain how tight-buffered cable differs from loose-tube construction. They also examine the differences between LSZH and PVC cable materials.

As a result, consultants, contractors and integrators can select the most appropriate construction for the installation environment.

Procurement & Specification

Before purchasing any fibre optic cable, it’s important to understand the pathway, performance and installation requirements that influence long-term reliability.

These resources will also help consultants prepare project specifications that clearly separate protected indoor/outdoor routes from underground pit-and-pipe infrastructure.

Where a route involves telecommunications pits, project documents should specify the TR-Series Mini Loose Tube Fibre Optic Cable rather than the W-Series.

Articles coming soon

Installation Guides

Even the correct fibre optic cable requires a suitable pathway and careful installation.

Consequently, our installation guides examine conduit selection, building-to-building connectivity and the practical factors that influence cable performance.

W-Series Indoor/Outdoor Fibre Optic Cable suits internal and protected external routes that remain free from telecommunications pits and excessive water. Suitable pathways may include internal conduit, protected cable tray, external wall conduit and enclosed links between buildings.

However, where an external conduit or duct installation passes through pits, the TR-Series Mini Loose Tube Fibre Optic Cable provides the appropriate cable platform.

Problem Solving

Occasionally, commercial fibre networks experience problems that require careful investigation.

Rather than simply replacing damaged cable, understanding the underlying cause often prevents the same failure from occurring again.

Articles coming soon

Lifecycle & Asset Management

Installing fibre optic cable represents a long-term infrastructure investment.

Therefore, asset owners increasingly assess cable systems according to lifecycle performance rather than initial purchase price alone.

Ultimately, these resources will help organisations maximise the service life and value of their fibre optic infrastructure.

A well-selected W-Series cable can provide long-term value within an appropriate dry and protected pathway. However, no maintenance program can fully compensate for installing the wrong cable construction in a pit-and-pipe or excessively wet environment.

Articles coming soon

Industry Applications

Every industry presents different network and installation challenges.

For example, a commercial office building has different pathway requirements from a university campus. Likewise, a warehouse may face different mechanical risks from a healthcare facility or data centre.

Each guide will explain where W-Series provides an appropriate solution and where another RapidConnect cable family should be selected.

In particular, campus and business-park networks frequently use underground telecommunications pits. Where pits form part of the route, specify the RapidConnect TR-Series Mini Loose Tube Fibre Optic Cable instead of the W-Series.

Articles coming soon

Specify the Right Indoor Outdoor Fibre Optic Cable

RapidConnect W-Series Indoor/Outdoor Fibre Optic Cable provides a practical combination of commercial-building suitability, tight-buffered termination, UV resistance, dry water blocking and pathway flexibility.

With OS2 Singlemode and OM4 Multimode options, the range supports both longer-distance commercial backbones and high-speed shorter links.

However, W-Series must remain within dry, controlled and protected pathways. It is not suitable for telecommunications pits, flooded conduit, direct burial, aerial spans or applications requiring armour.

The primary selection rule is straightforward:

For pricing, availability or technical assistance, contact Anderson Corporation on 03 9761 7600 or email sales@andcorp.com.au.

 

Likewise, the official Anderson Corporation YouTube Channel is always available to you for more Fibre Optic Information!

Attachments

File File size
Indoor-Outdoor-Cable-W-Series 2 MB