For Nigerian deployments, this product should be evaluated as part of the complete network path, including its connectors, mapping and acceptance values. 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. The two cable 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 cable assembly core is Corning G.657.A1 bend-insensitive glass, and every breakout leg is protected by a helical steel armored branch tube, which means the completed product survives pulling, bird damage and rodents across years of outdoor exposure.
Product Highlights
- 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
- Corning G.657.A1 bend-insensitive fiber, 20/10D bend radius
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 link between them carries CPRI or eCPRI traffic over duplex single-mode fiber, and it is the most in mechanical terms 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 each day of its service life. The cable assembly is engineered for exactly that run, with a jacket and strength system rated for outdoor fitting 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 backbone trunk breaks out into legs at the RRU end, standard 2.0mm tails can readily be crushed by clamps, chewed by rodents or pecked open by birds. Every breakout leg of the completed 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, which means 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 makes it possible for generous sweep bends. G.657.A1 bend-insensitive fiber tolerates a 10D static and 20D dynamic bend radius, which means the cable assembly can readily 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 link link loss calculation unchanged when the patch jumper connects into older feeder fiber.
LSZH jacket for mixed indoor-outdoor routes
Many FTTA runs start inside a hardware shelter, pass through a wall gland and continue outdoors up the tower. A single cable that is legal for the two 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 channel loss budget.
Stock lengths and made-to-order sizes
Stock length choices 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. Customized lengths beyond this range are manufactured to order. For tower runs, measure the route from the BBU patching field to the RRU port with the cable assembly tray path included, then add working slack at the two cable ends; an accurately ordered length avoids a service loop hanging on the structure. Specifying the exact route length avoids the two the slack storage problem of an overlong cord and the strain risk of one that is too short.
Inspection and test procedures
Every cable 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 every breakout leg, not on a sample basis. End-face geometry is inspected for consistent physical contact, and the cable assembly is proof-checked so that the delivered jumper can readily be plugged in and put into service without on-site rework.
Ordering Information and Support
Refer to the LC-LC duplex FTTA family at the request stage a quotation and state the route length and the breakout style needed at the RRU end. For connector mixes other than LC to LC, or for non-standard breakout lengths, the made-to-order FTTA program covers the same cable platform; send the requirement with the enquiry and the factory will establish the manufacturable specification before the build starts. For Nigerian orders, our team can check the requirement before coordinating manufacture and international delivery.
