CXP Connector and Pins
The CXP connector has three InfiniBand port connections.
The following table lists the pinout for each connection.
|
|
|
|
|
|
|
|
1 |
GND |
22 |
GND |
43 |
GND |
64 |
GND |
2 |
TX0p |
23 |
TX1p |
44 |
RX3p |
65 |
RX2p |
3 |
TX0n |
24 |
TX1n |
45 |
RX3n |
66 |
RX2n |
4 |
GND |
25 |
GND |
46 |
GND |
67 |
GND |
5 |
TX2p |
26 |
TX3p |
47 |
RX1p |
68 |
RX0p |
6 |
TX2n |
27 |
TX3n |
48 |
RX1n |
69 |
RX0n |
7 |
GND |
28 |
GND |
49 |
GND |
70 |
GND |
8 |
TX4p |
29 |
TX5p |
50 |
RX7p |
71 |
RX6p |
9 |
TX4n |
30 |
TX5n |
51 |
RX7n |
72 |
RX6n |
10 |
GND |
31 |
GND |
52 |
GND |
73 |
GND |
11 |
TX6p |
32 |
TX7p |
53 |
RX5p |
74 |
RX4p |
12 |
TX6n |
33 |
TX7n |
54 |
RX5n |
75 |
RX4n |
13 |
GND |
34 |
GND |
55 |
GND |
76 |
GND |
14 |
TX8p |
35 |
TX9p |
56 |
RX11p |
77 |
RX10p |
15 |
TX8n |
36 |
TX9n |
57 |
RX11n |
78 |
RX10n |
16 |
GND |
37 |
GND |
58 |
GND |
79 |
GND |
17 |
TX10p |
38 |
TX11p |
59 |
RX9p |
80 |
RX8p |
18 |
TX10n |
39 |
TX11n |
60 |
RX9n |
81 |
RX8n |
19 |
GND |
40 |
GND |
61 |
GND |
82 |
GND |
20 |
SCL |
41 |
VCC3.3-Tx |
62 |
PRSNT |
83 |
VCC3.3-Rx |
21 |
SDA |
42 |
VCC12-Tx |
63 |
Int_L/Reset_L |
84 |
VCC12-Rx |
|
The following table provides descriptions of the CXP signals.
|
|
GND |
Ground for both
signal and power return |
VCC3.3-Tx |
3.3V standby power from the power supplies |
VCC3.3-Rx |
3.3V standby power
return |
VCC12-Tx |
12V power for cable export and future enhancements |
VCC12-Rx |
12V power return |
TXportdiff |
Differential InfiniBand transmit signal, where:
|
RXportdiff |
Differential
InfiniBand receive signal, where:
|
SCL |
I2C clock |
SDA |
I2C data I/O |
PRSNT |
Connection present |
Int_L/Reset_L |
Reset line |
|
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