Siemens SIMATIC HMI IPC677C - Page 201

Detailed descriptions
16.1 Motherboard
SIMATIC HMI IPC677C
Operating Instructions, 04/2013, A5E02722710-04
201
PROFINET LAN X3 Port P1, P2, P3
PROFINET interface
1
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Pin no. Short description Meaning Input / Output
1 RD+ Receive data * Input
2 RD- Receive data * Input
3 TD+ Transmit data * Output
4, 5
1)
SYMR Internal with 75 Ohm terminating resistor _
6 TD- Receive data * Output
7, 8
1)
SYMT- Internal with 75 Ohm terminating resistor _
S Shield
LED 1 Lit green: link
LED 2 Lights up yellow: activity
* Auto negotiation and auto crossover supported
1
Optional product variant
Ethernet RJ45 connection, X1, X2
Ethernet RJ45 connection
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Pin no. Short description Meaning Input / Output
1 BI_DA+ Bi-directional data A+ Input / Output
2 BI_DA- Bi-directional data A- Input / Output
3 BI_DB+ Bi-directional data B+ Input / Output
4 BI_DC+ Bi-directional data C+ Input / Output
5 BI_DC- Bi-directional data C- Input / Output
6 BI_DB- Bi-directional data B- Input / Output
7 BI_DD+ Bi-directional data D+ Input / Output
8 BI_DD- Bi-directional data D- Input / Output
S Shield –