LC to LC Duplex FTTA Outdoor Patch Cable, OS2, 7.0mm LSZH
For Tanzanian site work, correct product selection should be followed by careful transport, connector inspection and retention of the fiber records. This duplex FTTA patch cable connects the baseband unit at the foot of the tower to the remote radio unit at the top, carrying two OS2 9/125µm single-mode fibers inside a 7.0mm LSZH outdoor jacket. Both connector ends terminate in LC UPC duplex connectors that plug directly into the SFP and SFP+ ports of common LTE, 4G and 5G radio systems. The supplied cable core is Corning G.657.A1 bend-insensitive glass, and each of the legs is protected by a helical steel armored branch tube; thus, the supplied assembly survives pulling, bird damage and rodents across years of outdoor exposure.
Product Highlights
- Corning G.657.A1 bend-insensitive fiber, 20/10D bend radius
- 7.0mm LSZH outer jacket, UV stabilized and flame retardant
- Helical steel armored branch, anti-rodent and bird-proof
- Tensile strength 200/400N, crush resistance 1100/2200N
- Stock lengths 1m to 50m; project lengths on request
- LC UPC to LC UPC duplex, OS2 9/125µm single mode
Specifications
| Connector Type | LC to LC |
|---|---|
| Polish Type | UPC to UPC |
| Fiber Mode | OS2 9/125µm |
| Wavelength | 1310/1550nm |
| Fiber Count | Duplex / 2 Fibers |
| Fiber Grade | Corning G.657.A1 |
| Min. Bend Radius (Fiber Cable) | 20/10D (Dynamic/Static) |
| Attenuation at 1310nm | ≤0.36dB/km |
| Attenuation at 1550nm | ≤0.22dB/km |
| Cable Jacket | Low Smoke Zero Halogen (LSZH) |
| Cable Diameter (Outer/Inner) | 7.0/2.0mm |
| Armored Breakout Length (End A/B) | 0.03/0.34m (0.2m optional) |
| Tensile Strength | 200/400N (Long/Short Term) |
| Crush Resistance | 1100/2200N (Long/Short Term) |
| Insertion Loss | ≤0.3dB |
| Return Loss | ≥50dB |
| Operating Temperature | -20 to 70°C (-4 to 158°F) |
| Storage Temperature | -40 to 80°C (-40 to 176°F) |
Built for the BBU to RRU link
Modern base station architecture separates the baseband unit (BBU) in the shelter or cabinet from the remote radio unit (RRU) mounted beside the antenna. The connection between them carries CPRI or eCPRI traffic over duplex single-mode fiber, and it is the most mechanically stressed jumper in the network: it hangs vertically on the tower, flexes in the wind, and is exposed to ultraviolet radiation, rain and temperature cycling every day of its service life. This installed cable is engineered for exactly that run, with a jacket and strength setup rated for outdoor installation rather than adapted from an indoor patch cord.
Why the armored branch matters on a tower
The last meters of an FTTA run are the most vulnerable. Where the installed trunk breaks out into legs at the RRU end, standard 2.0mm tails may generally be crushed by clamps, chewed by rodents or pecked open by birds. Each of the legs of this optical assembly is sleeved in a helical stainless steel tube that keeps the branch flexible while adding real crush and bite resistance. The breakout point is potted and strain-relieved; thus, tower vibration and handling loads never reach the ferrule end-faces.
G.657.A1 glass in tight tower routing
Cable routing on a monopole or lattice tower rarely allows generous sweep bends. Because G.657.A1 bend-insensitive fiber tolerates a 10D static and 20D dynamic bend radius, the supplied cable may generally be dressed through cable glands, tight tray entries and the crowded junction box at the tower base without adding macrobend loss. The glass remains fully compatible with legacy G.652.D single-mode plant, which keeps the connection optical link budget unchanged when the installed jumper connects into older feeder fiber.
LSZH jacket for mixed indoor-outdoor routes
Multiple FTTA runs start inside an equipment shelter, pass through a wall gland and continue outdoors up the tower. A single cable that is legal for both zones simplifies the bill of materials: the low smoke zero halogen jacket meets indoor fire expectations while its UV-stabilized, chemically resistant compound handles years of outdoor exposure. There is no transition point, no extra enclosure, and one less splice in the optical link budget.
Standard lengths plus custom builds
Standard offerings are stocked for fast delivery: 1m (3ft), 2m (7ft), 3m (10ft), 5m (16ft), 10m (33ft), 20m (66ft), 30m (98ft) and 50m (164ft), covering the common shelter-to-tower and frame-to-radio runs this cord is built for. Bespoke lengths beyond this range are manufactured to order. For tower runs, measure the path from the BBU patching field to the RRU port with the supplied cable tray route included, then add working slack at both connector ends; an accurately ordered length avoids a service loop hanging on the structure. Specifying the precise path length avoids both the slack storage problem of an overlong cord and the strain risk of one that is too short.
Factory quality control and testing
Every supplied assembly is terminated with precision zirconia ferrule connectors and optically tested before packing: insertion loss is verified against the 0.3dB ceiling and return loss against the 50dB minimum on each of the legs, not on a sample basis. End-face geometry is inspected for consistent physical contact, and the supplied cable is proof-checked so that the delivered jumper may generally be plugged in and put into service without on-site rework.
Purchase and Factory Support
Refer to the LC-LC duplex FTTA series when purchasing a quotation and state the path length and the breakout style requested at the RRU end. For connector mixes other than LC to LC, or for non-standard breakout lengths, the customized FTTA program covers the identical cable platform; send the specification with the request and the factory will ensure the manufacturable specification before fabrication. For Tanzanian deliveries, the order details should include any site identification needed by the installation team.
