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Table 18. Serial-port connectors pin-number assignments
Universal Serial Bus ports
Your server/workstation 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
2. If you install a USB keyboard that has a mouse port, the USB keyboard
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/workstation for attaching USB compatible devices.
The following table shows the pin-number assignments for the USB-port
connectors on the rear of the server/workstation.
Table 19. USB-port connector pin-number assignments
Ethernet ports
The server/workstation comes with two integrated Ethernet controllers. This
controller provides an interface for connecting to 10-Mbps or 100-Mbps networks
and provides full-duplex (FDX) capability, which enables simultaneous
transmission and reception of data on the Ethernet local area network (LAN).
To access the Ethernet port, connect a Category 3, 4 or 5 unshielded twisted-pair
(UTP) cable to the RJ-45 connector on the rear of the server/workstation.
104
Hardware Maintenance Manual: xSeries 330 Type 8674, IntelliStation R Pro Type 6851, and Network Equipment Building
System Type 8674
Pin
Signal
1
Data carrier detect
2
Receive data
3
Transmit data
4
Data terminal ready
5
Signal ground
USB ports and devices will be disabled during the power-on self-test (POST).
emulates a mouse and you will not be able to disable the mouse settings in the
Configuration/Setup Utility program.
Pin
1
2
3
4
Pin
Signal
6
Data set ready
7
Request to send
8
Clear to send
9
Ring indicator
Signal
VCC
-Data
+Data
Ground
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