Siemens SIMATIC IPC427C Operations Instructions Page 120

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Detailed descriptions
16.1 Internal components
SIMATIC IPC427C
120 Operating Instructions, 10/2010, A5E02414743-03
16.1.3.7 PROFINET
PROFINET LAN X1 Port P1, P2, P3
PROFINET interface
/(' /('
Pinno. Short name Meaning Input / output
1 RD+ Receive data * Input
2 RD- Receive data * Input
3 TD+ Transmit data * Output
4, 5
1)
SYMR Internal 75 Ohm terminating resistor _
6 TD- Receive data * Output
7, 8
1)
SYMT- Internal 75 Ohm terminating resistor _
S Shield
LED 1 Lights up green: link
LED 2 Lights up yellow: Activity
* Auto Negotiation and auto cross over is supported
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