Specifications

Little Board/P5i Technical Manual
2–46
Table 2–36 Utility Connector (J16)
Pin Signal Name Function
1 -12V power Connect external -12V supply here for distribution to
expansion cards needing this voltage.
2 Ground Ground return
3 -5V power Connect external -5V supply here for distribution to
expansion cards needing this voltage.
4 Ground Ground return
5 LED Anode LED current source (+5V through 330 ohms)
6 RSVD No connection
7 Speaker + PC audio signal output
8 Ground Ground
9 Reset To one side of manual reset button.
10 Kbd SW To one side of the keyboard security switch.
11 Kbd Data Keyboard serial data
12 Kbd Clk Keyboard clock
13 Ground Keyboard ground
14 Kbd Power Keyboard +5V power
15 BATV+ External battery +
16 BATV- External battery -
Table 2–37 J16 Mating Connector
Connector Type Mating Connector
RIBBON 3M 3452-7600
Latching Clip 3505-8016
DISCRETE WIRE MOLEX Housing 22-55-2162
Pin 16-02-0103
2.15.1 LED Connection
To connect an external LED power-on indication lamp, connect the LED anode (-) to J16-5 and the
cathode (+) to ground. J16-5 provides +5V through a 300 ohm resistor.