Qsfp28 Pin Description - Nvidia Spectrum-2 SN3000 1U User Manual

QSFP28 Pin Description

Connector Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Symbol
GND
Tx2n
Tx2p
GND
Tx4n
Tx4p
GND
Mod-SelL
ResetL
Vcc Rx
SCL
SDA
GND
Rx3p
Rx3n
GND
Rx1p
Rx1n
GND
GND
Rx2n
Rx2p
GND
Rx4n
Rx4p
GND
ModPrsL
IntL
Vcc Tx
Vcc 1
Signal Description
Ground
Connected to Port 2 lane Rx
Inverted Data
Connected to Port 2 lane Rx
Non-Inverted Data
Ground
Connected to Port 4 lane Rx
Inverted Data
Connected to Port 4 lane Rx
Non-Inverted Data
Ground
Cable/Module Select
Cable/Module Reset
+3.3 V Power supply receiver
2-wire serial interface clock
2-wire serial interface data
Ground
Connected to Port 3 lane Tx
Non-Inverted Data
Connected to Port 3 lane Tx
Inverted Data
Ground
Connected to Port 1 lane Tx
Non-Inverted Data
Connected to Port 1 lane Tx
Inverted Data
Ground
Ground
Connected to Port 2 lane Tx
Inverted Data
Connected to Port 2 lane Tx
Non-Inverted Data
Ground
Connected to Port 4 lane Tx
Inverted Data
Connected to Port 4 lane Tx
Non-Inverted Data
Ground
Module/cable Present
Interrupt
+3.3 V Power supply transmitter
+3.3 V Power Supply
75