Adapter Card Interfaces
Rev 1.0
Mellanox Technologies
18
4
Adapter Card Interfaces
4.1
I/O Interfaces
Each adapter card includes the following interfaces:
• QSFP Optical Connector
• SFP+ Ethernet Connector
• PCI Express x8 edge connector
• I/O panel LEDs
• I
2
C compatible connector (for debug)
Port 1 connects to the IB port of the device, while port 2 connects to the Ethernet port of the
device. See Figure 7,“Port Numbering”
Figure 7: Port Numbering
4.1.1 InfiniBand Interface
The ConnectX-2 VPI device (MT25408B0) is compliant with the
InfiniBand Architecture Specifi-
cation, Release 1.2.1.
It has a compliant 4X InfiniBand port, with four Tx/Rx pairs of SerDes.
Each of the VPI adapter cards (listed in Table 3 on page 8) based on this device provides access to
its port by means of a QSFP connector.
This port utilizes a ‘media detect circuit’ that supports active copper cables and fiber solutions to
be connected to the InfiniBand port connectors.
4.1.2 Ethernet SFP+ Interface
The ConnectX
®
-2 device is compliant with the
IEEE Std 802.3ae 10 Gigabit Ethernet
and the
IEEE Std 802.3aq 10GBASE LRM.
The SFP+ port has one Tx/Rx pair of SerDes. Each of the cards
(listed in Table 3 on page 8) based on this device provides access to their Ethernet port by means
of copper or optical cables.
Port 2
Ethernet
Port 1
IB port
