2
Hardware Installation
25
SPEAKER: Speaker Connector
This connects to the speaker installed in the system chassis.
KEYLOCK: Keylock and Power LED Connector
This is used to connect to the keyboard lock (located on the front
panel of the system chassis) for locking the keyboard.
Use pins 24
to 26 to connect to the Power LED.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Pin Assignment
SB-LED
(ATX Standby 5VSB LED)
HD-LED
(Primary/Secondary IDE LED)
G-LED
(Green LED)
SP-SW
(ATX power switch)
G-SW
(Green switch)
RESET
(Reset switch)
SPEAKER
(Speaker connector)
KEYLOCK
(Keylock and Power LED
connector)
LED Power
Ground
N. C.
LED Power
Signal
N. C.
LED Power
Signal
N. C.
Signal
Ground
N. C.
Signal
Ground
N. C.
Signal
Ground
N. C.
Signal
N. C.
Ground
+5V
N. C.
LED Power
N.C.
Ground
Keylock Signal
Ground
Use pins 24 to 26
for the Power LED.
