Solutions for 4G Business - Optical Fiber Cable for Distributed Base Station

With the construction of 4G networks, communication cables and equipment keep extending toward the subscribers. The power supply for equipment of remote base stations. Communication rooms and access points for subscribers have become a challenging problem. The solution of DC remote power supply by hybrid optical and electrical cables can not only facilitate centralized construction. And maintenance of power supply devices in the network also realizes the efficient cable transmission of electric energy and optical signals.

In addition to solving the problems mentioned above, the solution of DC remote power supply by hybrid optical and electrical cables can reduce construction costs. And maintenance and enhance efficiency. 

■ Principle of remote power supply

DC remote power supply system consists of a central office terminal (COT) and a remote terminal (RT).The power of COT can be boosted from DC 48V to DC 220~410V(adjustable) and transmitted to RT by hybrid optical and electrical cables,and then dropped to DC 48V(DC 280V might be converted to AC220V) to supply the loads(RRU, optical fiber repeater, small micro base station, ONU, etc.).In this way, maintenance-free power is all-weather supplied. 

■ Application

1. Point-to-point

Scenario: network with single RRU or multiple RRUs.

Applicable to the situation where RT devices are gathered at one point but far away from COT.

1-COT 

2-ODB 

3-Hybrid optical and electrical stranded loose tube cable 

4-Joint box for the hybrid cable.

5-ODB(lightning-proof) 

6-RT 

7-Hybrid optical and electrical tight buffered patch cord 

8-RF patch cords.

2. Point-to-multipoint

Scenario: Indoor 4G coverage.

Applicable to the situation where RT devices are scattered far away.

Joint box for the hybrid cable.

1-COT 

2-ODB 

3-Hybrid optical and electrical stranded loose tube cable 

4-Joint box for Hybrid cable.

5-ODB(lightning-proof) 

6-RT 

7-Hybrid optical and electrical tight buffered patch cord 

8-RF patch cord.

3. Cascade

Scenario: network covering highways, railways, and tunnels.

Applicable to the situation where multiple base stations are distributed far from each other in one direction.

1-OCT 

2-ODB 

3-Hybrid optical and electrical stranded loose tube cable 

4-Joint box for the hybrid cable.

5-ODB(lightning-proof) 

6-RT 

7-Hybrid optical and electrical tight buffered 

8-RF patch cord.

■ Hybrid Optical and Electrical Cable Introduction to the Access Network Product Series.

GDTC8S. The type is an eight-shaped steel wire that is hybrid with a fiber and optical cable. 

Hybrid cable, self-supporting, figure-8 configuration, blended optical fibers and electrical conductors. A steel wire lover has been designed to put on the overhead, a soft tube structure has been created to carry the fiber optic wires, and a steel tape armored has been designed for protecting the fiber optic wires. The sheath to be used is made of polyethylene (PE) because of its properties that are highly resistant; also, it can transport power and data.

GDTA. Armored hybrid optical fiber and electrical cable. 

This hybrid cable is an application of unity construction of optical fibers and electrical conductors in a single design. The cable is provided with an armored tape (APL) for additional protection. The power cable has a stranded loose tube for fibers and a PE sheath, which is to be employed under duct or direct burial applications with a low to medium weight requirement and mild corrosion resistance.

GDTS. Armored Hybrid Optical Fiber and Electrical Cable. 

A hybrid cable implying integration of optical and electric components, with a stranded loose tube shape and steel tape armor (PSP). PE sheathing provides – strength; it is used outdoor such as underground cables or direct burial where a higher level of mechanical protection than the aluminum armor is needed.

GDTA53. Double Sheath APL-PSP Armored Hybrid Rope and Optical Cable. 

We present an advanced mixed cable design type, secure by dual-layer armoring APL and PSP and also PE sheath. The strands (fibers) are possessing an independent loose tube design, which is enforced so as to withstand extreme environments including direct burial and heavy duct installations. Thus, this design allows for the greatest possible protection against water and physical damage.

• GDTC8S Figure-8 stands out for aerial deployments due to its self-supporting steel wire messenger and figure-8 design, ideal for combining power and data over long spans.

• GDTA offers a lightweight option with aluminum armor, suitable for less demanding environments like ducts or direct burial.

• GDTS provides a stronger alternative to GDTA with steel tape armor, enhancing mechanical protection for similar applications.

• GDTA53 is the most robust, with dual armor and double sheathing, making it the top choice for extreme conditions requiring maximum durability.

■ Hybrid Optical Cable Applied in Wireless RRU Product Series

GDFJAH APL Armored LSZH Sheath Hybrid Optical Fiber Sub-unit and Electrical Cable

The hybrid cable has an integrated optical fiber subunit and electrical conductors; it is also armored with aluminum tape (APL) outside for protection and a low-smoke zero-halogen (LSZH) sheath inside for safety in indoor environments. It is created to convey power and data simultaneously in locations where resistance to fire and smoke explosion is required.

GJYFJH Sub-unit Aramid Yarn LSZH Sheath Fiber Optic Cable

A light-duty fiber optic cable with multiple superimposed unit tight-buffers, which are reinforced with aramid yarns and protected by a jacket made of LSZH (low smoke zero-hazardous cable). This cable can be deployed indoors and outdoors where flexibility and fire safety are primary objectives and armored cables are not an option.

GJYWFJH Tight-Buffered Fiber with Aramid LSZH Sheath Fiber Optic Cable

This cable consists of tightly buffered optical fiber, aramid yarn utilized for extra strength, and the LSZH jacketing. The form factor of this product is such that it is well suited for indoor applications in the form of patch cords or connections of short distance; here the emphasis is on the flexibility and safety in the fire hazard areas.

GJYXFH Multi-core Fibers Aramid Yarns Double Sheath Optic Cable

Utilizing multiple-core tightly-buffered fibers, this cable has an increased strength with aramid yarns and excellent durability with double LSZH sheath. It is effective where indoor/outdoor applications require a high concentration of fiber and considerable environmental stress to be overcome.

GDFJH Hybrid Optical and Electrical with Steel Hose Fiber Optic Cable

This cable type, featuring optical fibers and electrical conductors, has a housing of a steel hose (flexible metal conduit) and an LSZH sheath. Devising it for rough environments where firm mechanical protection is required, it can be adequate for industrial applications or outdoor settings with the aim of safety in fire.

• GDFJAH and GDFJH are hybrid cables for combined optical and electrical needs, with GDFJAH using lighter APL armor for indoor use and GDFJH leveraging a steel hose for tougher conditions.

• GJYFJH and GJYWFJH are non-armored, LSZH-sheathed options focused on flexibility and safety, differing in sub-unit vs. tight-buffered designs for varying indoor applications.

• GJYXFH stands out with its multi-core capacity and double sheath, offering durability for higher fiber count needs across indoor and outdoor settings.

These products are designed for a wide range of applications, from fire-safe indoor installations to robust industrial deployments. LSZH sheathing ensures safety in all scenarios. 

Please get in touch with us if you need further details!