5149U KEYBOARD USER'S GUIDE
Product Overview
This document describes the functional specification of standard
USB
keyboard and standard
USB
Hub
keyboard. Its function is fully compatible with the
U
niversal
S
erial
B
us Specification
Revision 1.1 as well as the
H
uman
I
nterface
D
evices (HID) class specification 1.1.
USB Interface Features:
Ø
USB is a "must-have" feature in the current market.
Ø
The instant way to expand your PC. You never to open your PC and you don't need to worry
about add-in cards, DIP switch setting or IRQs.
Ø
"Hot-swapping" feature: You don't even need to shut down and restart your PC to attach or
remove a peripheral. Just plug it in and go!
The ACPI Power Management Keys and Their Functions
System requirement:
Ø
Microsoft
Ò
Windows
Ò
98 operating system.
Ø
The system supporting ACPI or APMII.
Ø
ATX motherboard and ATX power supply.
The functions of the power management are specified and performed by Windows
Ò
98 operating
system, no vendor-specified driver is needed to use them, but the Windows
Ò
98 operating system
is necessary. There could be one or two or three ACPI power management keys on the keyboard,
those functions are as follows.
Power off
key:
Power down the system.
Sleep
key:
Put the system to sleep.
Wake up
key:
Wake up or powers up the system.
Power
key:
(Single key with three functions above)
Ø
Press this key and hold over four seconds to power down the system.
Ø
Press this key and release it within four seconds to put the system to sleep.
Ø
When the system is asleep or powered down, press this key and release it within four
seconds to wake up or power up the system.
USB Cable, Plug Contact Numbering & Ports
USB keyboard has a cable for sub-channel device and a series A plug, which fully comply with the
USB
specification 1.1.
Contact
Number
Signal Name
Comment
1
VCC
Cable power
2
- Data
3
+ Data
4
Ground
Cable ground
U
U
S
S
B
B
p
p
l
l
u
u
g
g
U
U
S
S
B
B
d
d
o
o
w
w
n
n
s
s
t
t
r
r
e
e
a
a
m
m
p
p
o
o
r
r
t
t
s
s
