Mellanox Technologies SX1710 - Page 56

Rev 1.6
Mellanox Technologies
53
Appendix C: Interface Specifications
C.1 QSFP Interface
GND
Rx2n
GND
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
31
32
33
34
35
36
37
38
Rx1n
Rx2p
Rx1p
GND
GND
GND
GND
GND
GND
Tx2n
Tx1n
Tx2pTx1p
Tx4n
Tx3n
Tx4p
Tx3p
GND
GND
Rx4n
Rx3n
Rx4p
Rx3p
GND
GND
SDA
SCL
Vcc Rx
ResetL
ModSelLLPMode
Vcc1
VccTx
IntL
ModPrsL
J3 and J6
Connector
Pin Number
Connector
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 ModSelL 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