Oracle Sun Datacenter InfiniBand Switch 648, Руководство по установке

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Preparing the Site 7
The following table provides descriptions of the CXP signals.
Related Information
■
“InfiniBand Cable Types” on page 12
■
“Connecting InfiniBand Cables” on page 108
Routing Service Cables
These topics describe cable routing.
■
“Power Cord Requirements” on page 8
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
Signal Description
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
TX portdiff Differential InfiniBand transmit signal, where:
•
port – 0 to 11
• diff – n or p for negative or positive
RX portdiff Differential InfiniBand receive signal, where:
•
port – 0 to 11
• diff – n or p for negative or positive
SCL I
2
C clock
SDA I
2
C data I/O
PRSNT Connection present
Int_L/Reset_L Reset line
Pin Signal Pin Signal Pin Signal Pin Signal