Ethernet Ports; Integrated System-Management Ports - IBM 8670M1X User Manual

3. Check to make sure that your network operating system (NOS) supports USB
4. For additional information about USB version 1.1 devices, go to
USB cables and hubs
You need a 4-pin cable to connect USB devices. If you plan to attach more than
three USB devices, you must use a hub to connect the devices. The hub provides
multiple connectors for attaching additional external USB devices.
USB technology provides up to 12 Mb-per-second (Mbps) speed with a maximum of
127 devices and a maximum cable length of five meters (16 ft).
USB-port connectors
Each USB port has an external connector on the front or rear of the server for
attaching USB-compatible devices.
The following illustration shows a USB-port connector. These connectors conform to
the USB version 1.1 standard.

Ethernet ports

Your server comes with an integrated dual-port Ethernet controller. This controller
provides an interface for connecting to 10-Mbps, 100-Mbps, or 1000-Mbps networks
and provides full-duplex capability, which enables simultaneous transmission and
reception of data on the Ethernet LAN.
To access the Ethernet controller, connect a Category 5, or higher, unshielded
twisted-pair (UTP) cable to either of the Ethernet (RS-45) connectors on the rear of
your server. See "System-board external port connectors" on page 45.
There are two RS-45 Ethernet connectors on the back of the server. See
"System-board external port connectors" on page 45 for the location of these
connectors.

Integrated system-management ports

The RS-485 connectors are used for the ISMP interconnect function. The ISMP
interconnect function uses these connectors to daisy-chain several system service
processors together. This function enables the service processors to communicate
with each other in half-duplex mode.
devices.
http://www.usb.org/.
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Chapter 4. Customer replaceable units
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