Universal Serial Bus Ports; Usb Cables And Hubs; Usb-Port Connectors - IBM 6000R - Netfinity - 8682 Hardware Maintenance Manual

Pin
1 Data carrier detect
2 Receive data
3 Transmit data
4 Data terminal ready
5 Signal ground
Table 19. Serial-port connectors pin-number assignments

Universal Serial Bus ports

The server has two Universal Serial Bus (USB) ports, which
configure automatically. USB is an emerging serial interface
standard for telephony and multimedia devices. It uses Plug
and Play technology to determine the type of device
attached to the connector.
Notes:
1. If you attach a standard (non-USB) keyboard to the
keyboard connector, the USB ports and devices will be
disabled during the power-on self-test (POST).
2. If you install a USB keyboard that has a mouse port,
the USB keyboard emulates a mouse and you will not
be able to disable the mouse settings in the Configura-
tion/Setup Utility program.

USB cables and hubs

You need a 4-pin cable to connect devices to USB 1 or USB
2. If you plan to attach more than two 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 megabits-per-second
(Mbps) speed with a maximum of 127 external devices and
a maximum signal distance of five meters (16 ft.) per seg-
ment.

USB-port connectors

Each USB port has an external connector on the rear of the
server for attaching USB compatible devices.
The following table shows the pin-number assignments for
the USB-port connectors on the rear of the server.
Pin
1
2
3
Table 20. USB-port connector pin-number assignments
100
Netfinity 6000R Type 8682 Models 1RY, 2RY
1
6
Signal
VCC
-Data
+Data
5
9
Pin
6 Data set ready
7 Request to send
8 Clear to send
9 Ring indicator
Signal
Signal