Siemens SIMATIC NET PROFIBUS manual Simatic NET Profibus PCF Fiber Optic Standard Cable

SIMATIC NET PROFIBUS PCF Fiber Optic Standard Cable

General Instructions for Working with

SIMATIC NET PROFIBUS PCF Fiber Optic Cables

Please note the following instructions to avoid damage to cables:

FMake sure that the selected cable is suitable for the area of application. You should, for example, check the following:

–Required temperature range

–Resistance of the jacket materials to chemicals, water, oils, rodents etc. to which the cable may be exposed in your application

–Required mechanical properties (bending radii, tensile strength, transverse compressive strength)

–Required behavior of the cable in fire

–Suitability of the cable including the connectors for the devices to be interconnected

If necessary, use a special cable that meets your requirements. Your SIMATIC NET contact in your local Siemens branch will be happy to advise you.

FNever exceed the maximum permitted loads (tensile load, transverse compressive load etc.) specified in the data sheet of the cable you are using. Excessive transverse compressive load can, for example, result by using screw clamps to secure the cable.

FAlways use the pulling loop to pull in the PCF standard cable. Never pull in the cable by the connectors or stripped cords.

FOnly use PCF fiber-optic cables with devices approved for this FO cable type. Keep to the maximum permitted cable lengths.

FWhen cutting cables to length, make sure that no loops are formed and that the cable is not twisted. Loops and torsion under tensile load can cause kinks or cracks that may mean irreparable damage to the cable.

FFollow the steps outlined in these instructions.

FMake sure that the outer jacket and buffers of the cable are not damaged.

FNever insert contaminated connectors in the device sockets. The optical transmitter and receiver elements could otherwise be destroyed.

FWhen fitting the cable to connectors make sure that the transmitted and received data are crossed in the cable.

Page 3