IBM 866631Y Hardware Maintenance Manual - Page 81

Serial-port connectors, Universal Serial Bus ports, USB cables and hubs, Save Settings, Exit Setup

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Note: The Devices and I/O Ports choice appears only on the full configuration menu. If you set two levels of passwords, you must enter the administrator password to access the full configuration menu. 4. Select the serial port; then, use the arrow keys to advance through the settings available. 5. Select Save Settings; then, select Exit Setup to exit from the Configuration/Setup Utility main menu. Serial-port connectors The following table shows the pin-number assignments for the 9-pin, male D-shell serial-port connectors on the rear of the server. These pin-number assignments conform to the industry standard. 1 5 6 9 Table 15. Serial-port connectors pin-number assignments Pin Signal Pin 1 Data carrier detect 6 2 Receive data 7 3 Transmit data 8 4 Data terminal ready 9 5 Signal ground Signal Data set ready Request to send Clear to send Ring indicator Universal Serial Bus ports The server has two Universal Serial Bus (USB) ports that 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 Configuration/Setup Utility program. 3. Check to make sure your NOS supports USB devices. 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 segment. USB-port connectors Each USB port has an external connector on the rear of the server for attaching USB compatible devices. Installing options 71

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Note:
The Devices and I/O Ports choice appears only on the full configuration
menu. If you set two levels of passwords, you must enter the
administrator password to access the full configuration menu.
4.
Select the serial port; then, use the arrow keys to advance through the settings
available.
5.
Select
Save Settings
; then, select
Exit Setup
to exit from the
Configuration/Setup Utility main menu.
Serial-port connectors
The following table shows the pin-number assignments for the 9-pin, male D-shell
serial-port connectors on the rear of the server. These pin-number assignments
conform to the industry standard.
1
5
6
9
Table 15. Serial-port connectors pin-number assignments
Pin
Signal
Pin
Signal
1
Data carrier detect
6
Data set ready
2
Receive data
7
Request to send
3
Transmit data
8
Clear to send
4
Data terminal ready
9
Ring indicator
5
Signal ground
Universal Serial Bus ports
The server has two Universal Serial Bus (USB) ports that 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
Configuration/Setup Utility program.
3.
Check to make sure your NOS supports USB devices.
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 segment.
USB-port connectors
Each USB port has an external connector on the rear of the server for attaching
USB compatible devices.
Installing options
71