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Siemens SIMATIC NET PROFIBUS User Manual

Page 281

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Installing LAN Cables

C-19

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

Cabinet Lighting

Use bulbs for the cabinet lighting, for example LINESTRA

R

lamps. Avoid the use

of fluorescent lamps since they cause interference. If you need to use fluorescent
lamps, take the measures shown in Figure C-5.

Wire-mesh screen over the lamp

Shielded cable

Metal-encased switch

Power supply filter or shielded
power cable

Figure C-5

Measures for Interference Suppression of Fluorescent Lamps in a Cabinet