Siemens SIMATIC NET PROFIBUS manual Properties of Fiber-Optic Cables

Passive Components for Electrical Networks

Table 7-1		Properties of Fiber-Optic Cables, continued
	Meaning			SIMATIC NET PROFIBUS
			Plastic Fiber Optic		Plastic Fiber Optic,	PCF Fiber Optic,
			Duplex Cord		Standard Cable	Standard Cable
Attenuation at			v 230 dB/km			v 10 dB/km
Wavelength			660 nm			660 nm
Strain relief			–		Kevlar fibers	Kevlar fibers
Max. tensile strain
S	brief		v 50 N		v 100 N	v 500 N
S	permanent		not suitable for		not suitable for	v 100 N
			permanent tensile		permanent tensile	(only on strain relief,
			strain		strain	v50 N on connector or
						cord)
Transverse compressive			v 35 N/ 10 cm		v 100 N/ 10 cm	v 750 N/ 10 cm
strength per 10 cm length
(brief)
Bending Radius
S	single bend		w 30 mm		w 100 mm	w 75 mm
	(without tensile strain)
S	multiple bending		w 50 mm		w 150 mm	w 75 mm
	(with tensile strain)		(only the flat surface)
Permitted ambient conditions
S	Transport/		–30 _C to +70 _C		–30 _C to +70 _C	–30 _C to +70 _C
	storage temperature
S	Temperature for		0 _C to +50 _C		0 _C to +50 _C	–5 _C to +50 _C
	installation
S	Operating temperature		–30 _C to +70 _C		–30 _C to +70 _C	–20 _C to +70 _C
Resistant to
S Mineral oil ASTM no. 2,			conditionally1		conditionally1	conditionally1
	greases or water
S	UV radiation		not UV resistant		conditionally1	conditionally1
Behavior in fire			Flame-resistant acc. to flame test VW–1 to UL 1581
Outer dimensions			2.2 4.4 mm		Diameter	Diameter
			" 0.01 mm		7.8 " 0.3 mm	4.7 " 0.3 mm
Weight			7.8 kg/km		65 kg/km	22 kg/km

1For special applications, contact your Siemens representative.

7-4	PROFIBUS Networks SIMATIC NET
	6GK1970-5CA20-0AA1 Release 2 05/2000