Used by electric utilities on transmission lines with the voltage of 35 kV and higher for creating optical communication lines and protecting the power lines from lightning strikes.
Applied for aerial installation on distribution and power transmission lines for building long distance optical communication systems.
Used for distributed fiber optic sensing in different applications.
Used for indoor and outdoor applications where fire resistance is a must. Remain functional under direct flame for at least 180 minutes.
Applied in ducts, conduits and trays with no risk of rodent attacks. Can also be lashed.
Designed for high reliability in harsh environments with potential mechanical impact. Applied in all ground types, swamps, and harsh rivers.
Designed for air blowing in ducts and microducts for building reliable underground communication networks.
Designed for underwater application with increased crush and tensile loads.
InAir Figure 8
Used for cost-effective one-step aerial installation mostly in rural areas where the spans between poles are not long .
Applied in substations for control purposes.
Used to create communication lines between the common distribution box and a location inside the building (including vertical runs), between entrances or corridors in office buildings.
Applied for aerial installation on transmission towers, lightning poles, between buildings and structures for communication networks in rural areas.
Direct buried cable deployed when rodent protection is a serious concern or when additional crush resistance is needed due to rocky soil.
Central strength member: FRP
Dry loose tube
Corrugated steel tape armor
Excellent rodent resistance
Proven reliable design
Improved reliability due to inner jacketing
InArmor CST DJ is a cost-effective and proven reliable design. It is a multi-tube cable with corrugated steel tape as an anti-rodent armoring and double jacket. Inner jacketing improves reliability. Apart from an excellent rodent resistance, this cable is also UV-resistant, so it features multi-purpose outdoor installation: from direct buried to duct and aerial lashed.
Typically, this cable consists of a stranded core with a central strength member (FRP) and dry loose tubes with optical fibers. The stranded core is fixed by water-swellable yarns. A water-swellable tape is laid over loose tubes. An armor of corrugated steel tape is laid over an inner jacket.
InArmor CST DJ’s maximum rated design tension can reach up to 607 lb but it may be produced with even higher MRDT up to 1.124 lb. It has a wide range of operating temperatures from -40°F to +158°F and installation temperatures from -22°F to +158°F (operating temperature range can be increased on request).
Check how this direct buried fiber optic cable can be deployed in FTTH system.
|Maximum rated design tension (MRDT)
|607 lb (2.7 kN)
|126 lb/in (0.22 kN/cm)
|Fiber count, up to
|Cable diameter, in
|Cable weight, lb/ft
|Minimum bending radius, in
|-40°F ... +158°F
|-22°F ... +158°F
|Transportation and storage temperature
|-58°F ... +158°F
|Minimum bending radius
|15 x cable diameter
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