Computer Hardware User Manual

Little Board/P5

Technical Manual

2–53

Utility 2 Connector (J24)

Utility 2, a 24-pin connector at J24 provides the following connections:

! LIDSW – Simulates the lid switch on a laptop

! PWRBT – Turns off all but minimum power

! BATLOW – Simulates a low battery

! IrDA Interface – Infra-red serial interface signals

! PS/2 Mouse Port

! Universal Serial Bus (USB) Interfaces

The signals on the Utility 2 connector are shown in Table 2– 48. Table 2– 40 shows compatible

mating connectors.

Table 2– 48. Utility2 Connector (J24)

Pin Signal Name Function Pin Signal Name Function

1 LIDSW Lid Switch Input 2 PWRBT- Power Button Input

3 BATLOW- Battery Low Input 4 IRMODE IrDA Mode

5 IRTX IrDA Transmit 6 IRRX IrDA Receive

7 Ground 8 Vcc

9 MDATA PS/2 Mouse Data 10 MCLK PS/2 Mouse Clock

11 Ground 12 Vcc

13 SMBCLK Serial Bus Clock 14 SMBDATA Serial Bus Data

15 USBPWR1 USB1 +5V Power 16 USBPWR2 USB2 +5V Power

17 USBP-1 USB1 Data - 18 USBP-2 USB2 Data -

19 USBP+1 USB1 Data + 20 USBP+2 USB2 Data +

21 USBGND1 USB1 Ground 22 USBGND2 USB2 Ground

23 SHIELD1 Cable Shield for

USB1

24 SHIELD2 Cable Shield for

USB2

Table 2– 40. J24 Mating Connector

Connector Type Mating Connector

RIBBON 3M 3626-7600

Latching Clip 3505-8024

DISCRETE WIRE MOLEX HOUSING 22-55-2242

PIN 16-02-0103