Siemens POL8T5.70/STD Basic Documentation page 27

RS485 Interface
IP interface
Note:
A6V11521029_en--_c
Figure
Figure
RS485 and LAN ports can also supply power. If one port is powered with DC 24 V,
the other port will not be output as DC 24 V if no external power supply is
connected.
Technical specifications
Interface description
Pin RS485
1 NC
2 NC
3 RS485 A+
4 0 V
5 0 V
6 RS485 B-
7 24 V
8 24 V
Pin LAN
1 TX+
2 TX-
3 RX+
4 0 V
5 0 V
6 RX-
7 24 V
8 24 V
8
Pin on controller
RS485 A+ (for
RS485 connection)
RS485 B- (for
RS485 connection)
Pin on controller
TX+
TX-
RX+
RX-
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