RJ-45 Console and I²C interfaces are integrated in the same connector. Due to that, connecting any cable other than the Mellanox supplied console cable may cause an I²C hang.
Using uncertified cables may damage the I²C interface. Refer to the Replacement Parts Ordering Numbers appendix for harness details.
RJ-45 CONSOLE and I²C Pinout
|
Signal |
Pin# |
Color |
|---|---|---|
|
Not connected |
1 |
G/W |
|
I²C_SCL |
2 |
G |
|
TXD |
3 |
O/W |
|
Not connected |
4 |
Bl |
|
GND |
5 |
Bl/W |
|
RXD |
6 |
O |
|
I²C_SDA |
7 |
Br/W |
|
Not connected |
8 |
Br |
RS232 harness cable (DB9 to RJ45) is supplied to connect a host PC to the switch’s RJ-45 Console port.
RJ45 to DB9 Harness Pinout
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