Basic Operation
Rev 1.1
Mellanox Technologies
24
management is available. For the Socket pinout see “RJ-45 CONSOLE and I2C Interface” on
page 62.
2.5.2.2 RJ-45 Ethernet Connector “MGT” Internally Managed Switches Only
The 2 Ethernet connections labeled “MGT” provide access for remote management. The switch
can be connected to any Ethernet port.
2.5.2.3 USB Connector Internally Managed Switches Only
There is a single USB connector. This connector can be used to install software and or firmware
upgrades using a memory device that has a USB connector. This connector is USB 2.0 compli-
ant.
2.5.2.4 I2C Connector On Internally Managed Switches
There is an I2C connector on the far left of the power side of the switch.
This interface is for
Debug and Troubleshooting only.
This connector can be used to install firmware upgrades, should
the firmware image be damaged and cannot be upgraded through a host PC or remotely. This
interface is for support personnel and advanced users only.
Each Ethernet connector gets connected to Ethernet switches. These switches must be
configured to 100M/1G auto-negotiation.
Use only FCC compliant Ethernet cables.
The externally managed switches are Plug and Play and all firmware updates should be
done in-band. The I2C connection should only be used if the firmware image was cor-
rupted to the point that the regular firmware tools cannot successfully reburn the cor-
rect image.
The USB connector is not found on externally managed switches.
USB 1.0 is not supported.
Do NOT use excessive force when inserting or extracting the USB from the connector.
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