For isolated interfaces you have 5V (P5V) isolated at pin 6 and the corresponding ground
(M5V) at pin 5. With this isolated voltage, you can assign defined static voltage levels to
the signal lines and so ensure a low reflection level.
1 X1 PtP interface
2 Periphery
1 X1 PtP interface
2 Periphery
3 Send
4 Receive
*)
For line lengths >50m, you have to solder a terminating resistor of approx. 330W on
the receiver side for interference-free data traf
fic.
RS485 cabling with
defined static voltage
levels
RS422 cabling
VIPA System MICRO
Option: PtP communication
PtP communication via extension module EM M09
HB400 | CPU | M13-CCF0000 | en | 16-47 159
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