CP 503/A, CP 505/A,D,K, CP 507/
A,C
Connections and wiring
Project engineering manual V1.06
46
© KEBA 2021
● If restistor termination is desired by another device at the bus.
● If there are especially high noise levels at the bus due to cable routing.
To select a particular bus termination the DIP switch (S1) on the front of the
module is set (see "Serial interface configuration").
6.8.2.3 Connection example
Information
It is recomended to use cables with 120 Ω line impedance for the connec-
tion.
Bus termination with resistor termination
Fig.6-33: Example: resistor termination
1 ... CP 50x/x 2 ... External participant
3 ... Transmitte 4 ... Receiver
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