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Discontinued product

HYBRIFLEX® Hybrid Feeder Cabling Solution 2x4, 7/8”, 2 pairs 6AWG, Low-Inductance Coaxial Power Wire, 4 pairs Single-Mode Fiber, DLC Connectors, 360 ft

Rev : E | Rev date : 08 Sep 2021

RFS’ HYBRIFLEX Remote Radio Head (RRH) hybrid feeder cabling solution combines optical fiber and DC power for RRHs in a single lightweight aluminum corrugated cable, making it the world’s most innovative solution for RRH deployments.It was developed to reduce installation complexity and costs at Cellular sites.

HYBRIFLEX allows mobile operators deploying an RRH architecture to standardize the RRH installation process. HYBRIFLEX combines optical fiber (multi-mode or single-mode) and power in a single corrugated cable. It may eliminate the need for junction boxes as well as works in conjuction with and can connect multiple RRHs with a single feeder. Standard RFS CELLFLEX® accessories can be used with HYBRIFLEX cable. Both pre-connectorized and on-site options are available.


  • Aluminum corrugated armor with outstanding bending characteristics – Minimizes installation time and enables mechanical protection and shielding
  • Same accessories as 7/8" coaxial cable
  • Outer conductor grounding – Utilizes same grounding methods as coaxial cable
  • Lightweight solution and compact design – Decreases tower loading
  • Robust cabling – Eliminates need for expensive cable trays and ducts
  • Installation of tight bundled fiber optic cable pairs directly to the RRH – Reduces CAPEX and wind load by eliminating need for interconnection
  • Optical fiber and power cables housed in single corrugated cable – Saves CAPEX by standardizing RRH cable installation and reducing installation requirements
  • UL-Listed, flame-retardant jacket, UV protected assembles - Allows both indoor and outdoor applications
  • Maximum robustnessFully armored cable includes riser trunk and top outdoor breakout



Cable Type   HYBRIFLEX® Low Inductance
Fire Performance   Flame Retardant
Size   7/8"
Lengthm (ft)109.7 (360)

Mechanical Specifications 

Outer Diameter Nominal mm (in) 29.2 (1.15)
Cable Weight kg/m (lb/ft) 1.1 (0.7)
Minimum Bending Radius, Single Bend mm (in) 125 (5)
Minimum Bending Radius, Multiple Bends mm (in) 254 (10)
Recommended / Maximum Clamp Spacing m (ft) 1 / 1.2 (3.25 / 4)

Armor Specifications

Armor Type   Corrugated Aluminum
Maximum DC-Resistance of Armor Ω/km (Ω/kft) 1.05 (0.32)
Diameter Corrugated Armor mm (in) 25.4 (0.99)

Cable Jacket 

UV-Protection Individual and External Jacket   Yes

DC Power Cable Specifications

Number of DC Pairs   2
Maximum DC-Resistance Power Cable Ω/km (Ω/kft) 1.4 (0.41)
Cross Section of Power Cable mm² (AWG) 13.3 (6)
DC Wire Jacket Material   PVC
DC Cable Single Bending Radius mm (in) 137 (5.4)
DC Cable Diameter mm (in) 9.3 (0.365)
DC Cable Jacket Material   PVC
DC Standards (Meets or Exceeds)   For use in UL 2882, PVC, RoHS/REACH Compliant
Break-out Length (Top) mm (in) 1346 (53)
Break-out Length (Bottom) mm (in) 1244 (49)
Alarm Wire   10 (5 twisted pairs), 0.8 mm2 (8), 18 AWG
Alarm Wire Standards (Meets or Exceeds)   UL Standard 1063, 1581 VW-1, MTW Oil and Gasoline RES1 SUNRES (Cable meets UL requirements), RoHS/REACH Compliant

F/O Cable Specifications

F/O Cable Type   G657-A1 Single Mode, Bend Tolerant
Number of F/O Pairs   4
Core/Clad µm 9/125
Secondary Protection Nominal µm (in) 900 (0.035)
Single Bending Radius mm (in) 157 (6.2)
Cable Diameter   5.512 (0.217)
F/O Standards (Meets or Exceeds)   UL Listed Type OFNR (UL1666), RoHS Compliant
Optical Loss dB/Km 0.5 @ 1310 nm
0.5 @ 1550 nm
Fiber Termination End 1   DLC connector
Fiber Termination End 2   DLC connector
FO Break-out Length (Top) mm (in) 1422 (56)
FO Break-out Length (Bottom) mm (in) 1320 (52)

Testing and Environmental

Storage Temperature °C (°F) -40 to 70 (-40 to 158)
Operation Temperature °C (°F) -40 to 65 (-40 to 149)
Installation Temperature °C (°F) -20 to 65 (-4 to 149)
Jacket Specifications   UL2882, UL Listed


Installation Guidelines: Download

QuickShip 2.0 Program Information:  Download

On-line Factory Test Results: View



Nominal length equals length of trunk not including top and bottom breakouts; breakout lengths add additionally to the total assembly length tip to tip.

Includes 5 pairs of wires used to carry alarm signals.

The package also includes a kit of special RFS-designed DC insulating boots, 1 per coaxial power wire, used to properly protect and insulate the DC wires after stripping the jacket, avoiding possible short-circuits while wiring it to the distribution boxes.





Additional Assembly Lengths 

Model Number Length (ft)
HBF078-U2S4-30-LI 30
HBF078-U2S4-60-LI 60
HBF078-U2S4-90-LI 90
HBF078-U2S4-120-LI 120
HBF078-U2S4-150-LI 150
HBF078-U2S4-180-LI 180
HBF078-U2S4-210-LI 210
HBF078-U2S4-240-LI 240
HBF078-U2S4-270-LI 270
HBF078-U2S4-300-LI 300
HBF078-U2S4-330-LI 330
HBF078-U2S4-360-LI 360
HBF078-U2S4-390-LI 390
HBF078-U2S4-420-LI 420
HBF078-U2S4-450-LI 450
HBF078-U2S4-480-LI 480
HBF078-U2S4-510-LI 510
HBF078-U2S4-540-LI 540
HBF078-U2S4-570-LI 570
HBF078-U2S4-600-LI 600
HBF078-U2S4-630-LI 630
HBF078-U2S4-660-LI 660
HBF078-U2S4-690-LI 690