Chapter 2: Installation
2-11
I
2
C
The I
2
C connection is located on
pins 16 and 18 of JF1. See Table
2-11 for pin definitions.
Pin
Number
16
18
Definition
Bus Data
Bus Clock
Table 2-11
I2C Pin Definitions
(JF1)
Chassis Intrusion
The chassis intrusion header is lo-
cated on pin 20 of JF1. See the
board layouts in Chapter 1 for its
location. See Table 2-12 for pin
definition.
Pin
Number
20
Definition
Intrusion Input
Table 2-12
Chassis Intrusion Pin
Definitions (JF1)
Keyboard Lock
The keyboard lock connection is lo-
cated on pins 22 and 24 of JF1.
See Table 2-13 for pin definitions.
Pin
Number
22
24
Function
Ground
Table 2-13
Keyboard Lock Pin Definitions (JF1)
Definition
Keylock
Keyboard inhibit +5v
Black wire
Overheat
A chassis overheat header is lo-
cated on pin 26 of JF1. See Table
2-14 for pin definitions.
Pin
Number
26
Definition
Overheat Input
Table 2-14
Overheat Pin Definitions
(JF1)
(Note: NC indicates no-connection.)
Speaker
The speaker connector is located
on pins 28, 30, 32 and 34 of JF1.
See Table 2-15 for pin definitions.
Table 2-15
Speaker Pin Definitions (JF1)
Pin
Number
28
30
32
34
Function
Power
NC
Definition
3.3v
NC
NC
Data
NC
Spkr Out
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