Leuze BPS 8 - Termination of the RS 485 Interface

Electrical connection
Leuze electronic BPS 8 60
TNT 35/7-24V
7.4.4 Termination of the RS 485 interface
Permanently installed termination networks are present in the MA 8-01 and the MA 8-02
which differ in terms of resistance values. The resistor network terminates the outgoing
RS 485 data interface, as shown in Figure 7.11, and cannot be switched off.
Figure 7.11: Termination of the RS 485 interface in the MA 8-01/MA 8-02
+5.2 V
GND
RS 485 A
RS 485 B
47 k
MA 8-02:
47 k
MA 8-02:
150
MA 8-02:
390
MA 8-01:
390
MA 8-01:
220
MA 8-01:
RS 485 receive/transmit data
A-line, PIN 4
RS 485 receive/transmit data
B-line, PIN 2