RF Components, Fiber Optic and RJ45 Components
Classic transmission of RF signals over coaxial cables
Transmission and reception signals are transmitted by carrier frequencies between 700 MHz and 2.7 GHz, depending on the mobile radio generation and network. Low-attenuation corrugated cables of different diameters are used to minimise the attenuation losses between the base station and the antenna. Typically, these corrugated cables are dimensioned 1/2″, 7/8″, 1 1/4″ and 1 5/8″. Telegärtner offers matching connectors of the SIMFix® series suitable for these cables. The SIMFix® CA connectors were developed especially for 7/8″ cables. They are designed for use with cables with either copper or aluminium outer conductors. In addition to their excellent electrical performance in regard to return loss and passive intermodulation, they also guarantee resistance to ambient influences thanks to a three-stage sealing concept. This imperviousness to outdoor influences is also invaluable in such applications.
3-fold protecion concept
Protection step 1:
An O-ring on the jacket of the cable.This guarantees reliable protection against the ingress of water in normal applications of an undamaged cable.
A special sealing to the outer conductor of the cable.
Damage of the cable’s outer jacket poses the danger that water will enter the connector between the outer jacket and the outer conductor of the cable. This is prevented by the additional sealing.
Barrier sealed by protective steps taken on centre contact.
Massive destruction of the cable resulting in water ingress into the dielectric and possibly even into the inner conductor can destroy the following cable segment and even damage the base station, if water is able to seep through the connector.
In the brochure you will find the complete range of coaxial connectors, jumper cables and surge protection which can be used in mobile radio base stations.
Combined signal transmission by fiber optic cables and coaxial cables
Signal transmission using fiber optic cables is becoming increasingly important with the increasing use of Remote Radio Heads (RRH). Here, a digital signal is transmitted from the base station to the RRH by a fiber optic cable. The digital signal is converted into an RF signal with the appropriate carrier frequencies in the RRH. The RF signal is then transmitted over the last few metres to the antennas by corrugated coaxial cables (jumper cables). Telegärtner offers the suitable FO outer cables, connectors and distributor boxes for transmission over FO cables.
Data transmission using twisted-pair cables and fiber optic cables within the base station
Since the RF signal is generated outside the base station when using Remote Radio Heads, twisted-pair and fiber optic cables are generally used for the data transmission inside the base station. For example, connection components in RJ45 technology or FO connectors with SC inter-faces are commonly used.
Within its wide range of connecting components for structured cabling, Telegärtner also offers numerous products which are ideal for use in base stations. In our new Mobile Radio brochure you will, therefore, find a broad selection of RJ45 plugs, patch cords, patch panels, FO connectors and distributor boxes as well as preassembled FO cables, all tailor-made for use in mobile radio base stations.