
SATEL-EASy+
User Manual
Version 1.19
69
FUSE = 2 A slow
15.2.3
RS-422 wiring
FUSE = 2 A slow
If the transmission lines are long the receiving end of the lines must be terminated using a
separate termination resistor (typical values range from 100 -120 ohm depending on the
characteristic impedance of the transmission line).
15.2.4
RS-485 wiring
Both ends of the transmission line should be terminated by connecting a separate terminating
resistor between the positive and negative signal wire. Typical values range from 100
–
120 ohm
depending on the characteristic impedance of the line.
*FUSE = 2 A slow
NOTE!
The RS-485/422 standards define only the electrical parameters of the signals (signal
level etc.). The connectors and the names of the signals are NOT defined. Different RS-485/422
standards or proprietary buses specify different names for the wires. Common signal names
used are ‘
A
’ and ‘
B
’, ‘+’ and ‘
-
’ or ‘hot’ and ‘cold’.
Unfortunately, these names define the polarity
Содержание SATEL-EASy+ YM6010
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