Siemens SIMATIC NET PROFIBUS manual Properties

Passive Components for RS-485 Networks

Properties

The characteristics of the trailing cable differ from those of the standard LAN cable as follows:

SExtremely good resistance to abrasion

SResistant to mineral oils and grease

SExtremely good resistance to UV radiation

SSmall bending radii for installation and operation

SDue to the smaller Cu cross-section, the d.c. loop resistance and the HF attenuation are higher which means reduced segment lengths.

SThe sheath material is flame resistant

Uses

The trailing cable is designed for a minimum of 4 million bending cycles at the specified bending radius and a maximum acceleration of 4 m/s2 and is therefore particularly suitable for installation in drag chains.

Note

During installation and operation, all the mechanical restrictions involving the cable such as bending radii, tensile load etc. must be adhered to.

PROFIBUS Networks SIMATIC NET	4-15
6GK1970-5CA20-0AA1 Release 2 05/2000