IBM INTELLISTATION E PRO 6204, Руководство пользователя

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Chapter 5. Installing options
79
Universal Serial Bus connectors
Your computer has two Universal Serial Bus (USB) connectors for optional telephony
and multimedia devices. USB devices configure automatically with Plug and Play
technology.
Notes:
1. If you attach a standard (non-USB) keyboard to the keyboard connector, the USB
connectors and devices will be disabled during the power-on self-test.
2. If you install a USB keyboard that has a mouse connector, the USB keyboard
emulates a mouse, and you will not be able to disable the mouse settings in the
IBM Setup Utility program.
USB cables: Use a 4-pin USB cable to connect external devices to USB connectors.
USB technology transfers data at up to 12 megabits per second (Mbps) with a
maximum of 127 external devices and a maximum signal distance of 5 meters (16 ft)
per segment.
USB connectors: See “Input/output connectors” on page 75 for the location of the
USB connectors.
Table 8. Ethernet RJ-45 connector pin-number assignments.
Pin Signal Pin Signal
1 Transmit data+ 5 Not connected
2 Transmit 6 Receive data –
3 Receive data+ 7 Not connected
4 Not connected 8 Not connected
To operate the computer within FCC Class A or Class B limits, use a category 5
Ethernet cable.
Important
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