Passive Components for RS-485 Networks
4-50
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000
Table 4-10 Pinout of the Sub D Connector
Pin Signal Meaning
1 PE Protective earth
2 NC Not used
3 B (RXD/TXD-P) Data line B (receive/transmit data P)
4 NC Not used
5 M5V2 (DGND) Data ground
6 P5V2 (VP) + 5V voltage plus
7 NC Not used
8 A (RXD/TXD-N) Data line A (receive/transmit data N)
9 NC Not used
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