Hard Clad Silica (HCS) is a hybrid optical fiber specially designed for rugged use. The HCS fiber consists of a glass core, the core glass, and a polymeric cladding. It is plastic-coated and extremely resistant to dirt, dust and heavy mechanical stress during installation and operation.
The core glass of the HCS fiber consists of quartz glass or silicon dioxide. It has a diameter of 200 µm up to 900 µm. The cladding surrounding the core glass is a hard polymer about 50 µm thin. The total diameter of the core glass and cladding is 230 µm for a 200 µm thin core glass. The surrounding flame-retardant cable sheath is made of polyvinyl chloride( PVC) or Tefzel(ETFE) and can be installed indoors or outdoors....
Since the transmission takes place in the core glass, the attenuation values correspond to those of other step fibers. HCS cables can transmit signals at a data rate of up to 100 Mbit/s over 2 km. They are used in local networks in the in-house area and in telecommunications facilities. A special FSMA connector (HCS-FSMA) and various HFBRconnectors are available for HCS fiber.
The designation Hard Clad Silica (HCS) is a registered trademark of Spec Tran Corp.