Chengdu Datang Communication Cable, Co. Ltd.
Chengdu Datang Communication Cable, Co. Ltd.
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● Accurate process control ensuring good mechanical and temperature performances.
● Optical and electrical hybrid design, solving the problem of power supply and signal transmission and providing the centralized monitoring and maintenance of power for equipment.
● Improving manageability of power and reducing coordination and maintenance of power supply.
● Reducing procurement costs and saving construction costs.
● Mainly used to connect BBU and RRU in DC remote power supply system for distributed base station.
● Applicable to duct and aerial installations.
| Fibre attributes | |||
| Attribute | Detail | Value | Unit |
| Mode field diameter | Wavelength | 1310 | nm |
| Range of nominal values | 8.6-9.2 | μm | |
| Tolerance | ± 0.4 | μm | |
| Cladding diameter | Nominal | 125.0 | μm |
| Tolerance | ± 0.7 | μm | |
| Core concentricity error | Maximum | 0.6 | μm |
| Cladding noncircularity | Maximum | 1.0 | % |
| Cable cut-off wavelength | Maximum | 1260 | nm |
| Macrobending loss | Radius | 30 | mm |
| Number of turns | 100 | ||
| Maximum at 1625 nm | 0.1 | dB | |
| Proof stress | Minimum | 0.69 | GPa |
| Chromatic dispersion parameter | λ0min | 1300 | nm |
| λ0max | 1324 | nm | |
| S0max | 0.092 | ps/(nm2 × km) | |
| Cable attributes | |||
| Attribute | Detail | Value | Unit |
| Attenuation coefficient | Maximum at 1310 nm | 0.38 | dB/km |
| Maximum at 1550 nm | 0.25 | dB/km | |
| Maximum at 1625 nm | 0.38 | dB/km | |
| PMD coefficient | M | 20 | cables |
| Q | 0.01 | % | |
| Maximum PMDQ | 0.20 | ps/ | |
The standard structure of GDTS cable is shown in the following table, other structure and fiber count are also available according to customer requirements.
| Item | Contents | Value | Remarks | |
| 12 | 24 | |||
| Loose tube | Number | 1 | 2 | |
| Outer diameter (mm) | 3.2 | 3.2 | PBT | |
| Filler | Number | 1 | 0 | Polypropylene |
| Fiber count per tube | G.652D | 12 | 12 | |
| Power wire | Type | 2.5mm2 | ||
| Conductor | Copper | Class 1:solid conductors | ||
| Number | 2 | |||
| Max. DC resistance of single conductor (20℃)(Ω/km) | 7.98 | |||
| Central strength member | Material | FRP | ||
| Diameter (mm) | 1.0 | |||
| PE layer diameter (mm) | 1.6 | |||
| Water Blocking Material | Material | Water blocking yarn | ||
| Water blocking tape | ||||
| Armor | Material | PE coated corrugated steel tape | ||
| Outer sheath | Material | MDPE | ||
| Color | Black | |||
| Thickness (mm) | Nominal: 1.8 | |||
| Cable diameter(mm) Approx. | 13.4 | |||
| Cable weight(kg/km) Approx. | 190 | |||
Main Mechanical and Environmental Performance
| Item | Value |
| Tensile performance(N) | 1500 |
| Crush(N/100mm) | 1000 |
| Operation temperature: | -40℃～+60℃ |
| Installation temperature | -15℃～+60℃ |
| Storage temperature | -40℃～+60℃ |
The standard delivery length of a cable is 2000m or 3000m with the tolerance 0～+20m. If special requests are made in the contract, the supplied cable length should conform to it.