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#### Cabling Requirements

- Minimum cable connections for the server:

  - At least one server on-board Ethernet network connection (NET port)

  - The service processor serial management port (SER MGT port)

  - The service processor network management port (NET MGT port)

  - Power cables for the server power supplies

- Service processor management ports: There are two service processor management ports for use with the ILOM service processor.

  - The service processor serial management port (labeled SER MGT) uses an RJ-45 cable and is always available. This port is the default connection to the ILOM service processor.

  - The service processor network management port (labeled NET MGT) is the optional connection to the ILOM service processor. The NET MGT port is configured to use DHCP by default. To set a static IP address, see Assigning a Static IP Address to the SP. The service processor network management port uses an RJ‐45 cable for a 10/100 BASE-T connection. This port does not support connections to Gigabit networks.

- Ethernet ports are labeled NET0, NET1, NET2, and NET3. The Ethernet interfaces operate at 10 Mbps, 100 Mbps, and 1000 Mbps.

Connection Type | IEEE Terminology | Transfer Rate
--- | --- | ---
Ethernet | 10BASE-T | 10 Mbit/sec
Fast Ethernet | 100BASE-TX | 100 Mbits/sec
Gigabit Ethernet | 1000BASE-T | 1000 Mbit/sec

- USB Ports: USB ports support hot-plugging. You can connect and disconnect USB cables and peripheral devices while the server is running, without affecting server operations.

  - You can only perform USB hot-plug operations while the OS is running. USB hot-plug operations are not supported when the server `ok` prompt is displayed or before the server has completed booting.

  - You can connect up to 126 devices to each of the four USB controllers, for a total of 504 USB devices per server.

- AC power cables: Do not attach power cables to the power supplies until you have finished connecting the data cables, and have connected the server to a serial terminal or a terminal emulator (PC or workstation). The server goes into Standby mode and the ILOM service processor initializes as soon as the AC power cables are connected to the power source. System messages might be lost after 60 seconds if the server is not connected to a terminal, PC, or workstation.

##### Related Information

- Confirming Specifications

- Handling Precautions

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