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HB078-1-06S3-S6F
HYBRIFLEX Direct LTE, Cabling Solution for 3 RRU

Rev : B | Rev date : 15 Nov 2025

RFS' HYBRIFLEX cabling solution for Remote Radio Unit (RRU) combines optical fiber and DC power in a single lightweight aluminum corrugated cable, making it the world's most innovative solution for RRU deployments. It was developed to reduce installation complexity and cost at Cellular sites.
HYBRIFLEX cabling solutions allows mobile operators deploying RRU architecture to standardized installation process and eliminates the need and the cost for an internal grounding wire.
The HYBRIFLEX cable is part of a site installation kit. It consists of an armored bundle of 3 shielded DC cables, 3 F/O distribution cables and a rip cord to adjust the breakout part of the cable.

Feature / Benefits

  • A corrugated armor with excellent bending characteristics minimizes installation time and enables mechanical protection and EMC shielding
  • Outer conductor grounding eliminates typical additional grounding requirement and saves on installation costs
  • Lightweight solution and compact design decreases tower loads
  • Robust cabling eliminates need for expensive cable trays and conduits
  • Installation of stripped fiber optic cable pairs directly to RRH reduces CAPEX and wind load by eliminating need for junction boxes
  • F/O and DC housed in single corrugated cable saves CAPEX by standardizing RRH cable installation and reducing installation equipments
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Structure
Cable Type 3 RRU HYBRIFLEX™ Direct LTE
Size 7/8
Fire Performance Flame Retardant, LSZH
Mechanical Specifications
Outer Diameter Nominal 27.8mm (1.09in)
Cable Weight 0.85kg/m (0.57lb/ft)
Minimum Bending Radius 120mm (4.7in)
Minimum Bending Radius 250mm (9.8in)
Tensile Strength 700N (157lb)
Recommended / Maximum Clamp Spacing 0.8 / 1 (2.75 / 3.3)
DC Power Cable Specifications
Number of DC Pairs 3
Maximum DC-Resistance Power Cable 3.3ohm/1000 m (1ohm/1000 ft)
Cross Section of Power Cable 6 mm² (10 AWG)
Shielding braid
DC Wire Jacket Material Polyethylene, PE, Metalhydroxite Filling
DC Wire Jacket Thickness 0.5mm (0.02in)
DC Cable Single Bending Radius 100mm (3.94in)
DC Cable Diameter 9.9mm (0.39in)
DC Cable Jacket UV stable black PE
DC Standards (Meets or Exceeds) IEC 60232
Cable Jacket
UV-Protection Individual and External Jacket Yes
Jacket Material UV stable black PE
Armor Specifications
Armor Type Corrugated Aluminum tube
Maximum DC-Resistance of Armor 1.21ohm/1000 m (0.37ohm/1000 ft)
Copper Equivalent Cross Section of Armor 16 (5)
Diameter Corrugated Armor 25.2mm (0.99in)
F/O Cable Specifications
F/O Cable Type Tight-Buffer, Singlemode
Number of F/O Pairs 6
Core/Clad 9 /125
Secondary Protection Nominal 900µm (0.035in)
Single Bending Radius 50mm (1.97in)
Cable Diameter mm (in) 4.8mm (0.19in)
F/O Cable Jacket UV stable black PE
F/O Standards (Meets or Exceeds) ITU G 657.A2
Testing and Environmental
Storage Temperature -40°C to 85°C (-40°F to 185°F)
Operation Temperature -40°C to 85°C (-40°F to 185°F)
Installation Temperature -20°C to 50°C (-4°F to 122°F)
Jacket Specifications IEC 60332-3-24 UL 1581.sec.1080
LSZH Specification IEC 60754-1 / 2, IEC 61034-1/2
Product Detail

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