Interface Specifications
QSFP Pin Description
|
Connector Pin Number |
Pin Name |
Signal Description |
|
1 |
GND |
Ground |
|
2 |
Tx2n |
Transmitter Inverted Data Input |
|
3 |
Tx2p |
Transmitter Non-Inverted Data Input |
|
4 |
GND |
Ground |
|
5 |
Tx4n |
Transmitter Inverted Data Input |
|
6 |
Tx4p |
Transmitter Non-Inverted Data Input |
|
7 |
GND |
Ground |
|
8 |
Mod-SelL |
Module Select |
|
9 |
ResetL |
Module Reset |
|
10 |
Vcc Rx |
+3.3 V Power supply receiver |
|
11 |
SCL |
2-wire serial interface clock |
|
12 |
SDA |
2-wire serial interface data |
|
13 |
GND |
Ground |
|
14 |
Rx3p |
Receiver Non-Inverted Data Output |
|
15 |
Rx3n |
Receiver Inverted Data Output |
|
16 |
GND |
Ground |
|
17 |
Rx1p |
Receiver Non-Inverted Data Output |
|
18 |
Rx1n |
Receiver Inverted Data Output |
|
19 |
GND |
Ground |
|
20 |
GND |
Ground |
|
21 |
Rx2n |
Receiver Inverted Data Output 3 |
|
22 |
Rx2p |
Receiver Non-Inverted Data Output 3 |
|
23 |
GND |
Ground |
|
24 |
Rx4n |
Receiver Inverted Data Output 3 |
|
25 |
Rx4p |
Receiver Non-Inverted Data Output 3 |
|
26 |
GND |
Ground |
|
27 |
ModPrsL |
Module Present |
|
28 |
IntL |
Interrupt |
|
29 |
Vcc Tx |
+3.3 V Power supply transmitter |
|
30 |
Vcc 1 |
+3.3 V Power Supply |
|
31 |
LPMode |
Low Power Mode |
|
32 |
GND |
Ground |
|
33 |
Tx3p |
Transmitter Non-Inverted Data Input |
|
34 |
Tx3n |
Transmitter Inverted Data Input |
|
35 |
GND |
Ground |
|
36 |
Tx1p |
Transmitter Non-Inverted Data Input |
|
37 |
Tx1n |
Transmitter Inverted Data Input |
|
38 |
GND |
Ground |
QSFP Connector Male and Female Views
In order to connect a host PC to the Console RJ45 port of the system, a RS232 harness cable (DB9 to RJ45) is supplied.
RJ45 to DB9 Harness Pinout
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.