IBM 5000 manual Ports, Universal Serial Bus

Universal Serial Bus

Ports

The

universal

serial

bus

(USB) is an emerging serial interface standard

telephony

and

multimedia

devices. Each USB port is a single

connector

f

devices that

previously

used

serial,

parallel,

keyboard,

mouse,

and

gam

USB

technology

uses

Plug

and

Play

technology

to

determine

which

type

o

has

been

attached

to

the connector. Each USB device is accessed by

USB

address. A

device

called a

hub

is used

to convert

a

single USB

into multiple attachment points. A hub has multiple ports where peripheral

attached. USB

provides

12 megabits-per-second (Mbps) bandwidth with a

maximum of

63

peripherals and

a

maximum

signal

distance of

five

meters

4.9inches) per segment.

Note: If more than one USB device is to be attached, the devices connected to a hub. Your Netfinity 5000 server does not support a keyboard attached to the system USB port.

Your Netfinity 5000 server comes with two USB ports. Table 9 shows the pin-number assignments for the USB port connectors.

Table 9. USB Port Connector Pin-Number Assignments

Pin Signal

1VCC

2−Data

3+Data

4Ground

90 Netfinity 5000 Server Hardware Information and Procedures