In telecommunication, a drop is means dropping a signal in a communication network. A communication network consists of a transmitter, channel, and receiver. The receiver has to transmit the signal to the internal station facilities. Like in telecommunication, the electrical signal has to drop towards telephone switchboards from the telephone exchange. Dropping the signal from the exchange to the user end needs drop cables and the dropped signal can be referred to as ‘download’.
These drop cables are usually reinforced to withstand the tension (due to gravity and weather) of an aerial drop. The aerial drop means the cable is hanging in the air and the signal transmission has to deal with the tension in the drop cable. To minimize that the drop cable is integrated with a steel wire to keep it straight, and to lessen the aerial drop factor. Like in old times, the signal transmitted from the antenna had a coaxial drop cable attached to it. This cable actually had been influenced majorly from the aerial drop and from windy weather. But now there are different drop cables suitable for aerial, underground and indoor/outdoor building use.
- Aerial drop cables
To minimize the aerial drop effect on the transmission, optical fiber drop cable for aerial installation are manufactured. This drop cable contains a galvanized steel strand messenger as a support for central loose tube drop cable. This central optical fiber is filled with a suitable water tightness compound.
- Single and Duplex fiber drop cable
One of the most used fiber drop cables is FTTH. It is a flexible cable provides the lowest attenuation.
- Underground drop cables
The underground drop cable is specifically designed for use in the last leg of the Fiber to the premises (FTTP) applications. This fiber can be pre-protected and pre-connected. It also provides the lowest attenuation.