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SMP16-SFT251
Initial Startup
1.2
Wiring the I/O
The differential control lines must be twisted in pairs (see chap. 3.3). The single-ended control lines
must be twisted with the related ground.
The shield must be applied (for HF) to both the board and the addressed I/O. To prevent equalizing
currents on the shield, an equipotential bonding conductor should be installed parallel to the signal
line.
Never install your control lines near strong interference (e.g., motors, relays, high-voltage or power
lines, thyristor controllers, power inverters and transmitters).
Also adhere to the information on electromagnetic compatibility contained in the SICOMP IMC system
manual under the chapter on ambient conditions.
©Siemens AG 2003, All Rights Reserved
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(4)J31069-D2090-U001-A1-7618
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