Acer N30, N35, N310, N311, N50 connector pinout

Pin Nr.	Classification	Pin Name	I/O	Description
26	POWER	GND		Signal ground, Battery charging ground
25		GND		Signal ground, Battery charging ground
24		GND		Signal ground, Battery charging ground
23		GND		Signal ground, Battery charging ground
22	RS232	COM_DCD	I	Full Function UART Data-Carrier-Detect. Connect to +5v to turn on RS-232.
21		COM_DSR	I	Full Function UART Data-Set-Ready
20		COM_RXD	I	Full Function UART Receive
19		COM_RI	I	Full Function UART Ring Indicator
18		COM_CTS	I	Full Function UART Clear-to-Send
17		COM_DTR	O	Full Function UART Data-Terminal-Ready
16		COM_TXD	O	Full Function UART Transmit
15		COM_RTS	O	Full Function UART Request-to-Send
14	USB CLIENT	IO_DEV_USBN	I-O	USB Client Device D - (negative) signal
13	USB CLIENT	IO_DEV_USBP	I-O	USB Client Device D + (positive) signal
12	USB HOST	IO_HOST_USBN	I-O	USB Host Device D - (negative) signal
11	USB HOST	IO_HOST_USBP	I-O	USB Host Device D + (positive) signal
10	POWER out	VBUS	O	Provide power to USB device (PDA is host) (+)
9	POWER in	USB_CHARGE	I	Charge battery via USB from external computer (PDA is client). Two types of charging current : 100mA or 500mA depending on your power supply (+)
8	POWER in	USB_CHARGE	I
7	N.C.
6	EXT SPKR	SPCAROUT	O	Speaker signal output to accessory
5	EXT SPKR DET	CARDETECT	I	Detection : Turns off internal speaker if external is present
4	POWER	+ADAP	I	Positive terminal of DC adaptor that powers the internal charging circuit of Li-Ion battery. The approved power supply is 5.0V ? 5% @ 2A
3		+ADAP	I
2		+ADAP	I
1		+ADAP	I

This pinout may be incorrect in case of USB HOST connection used.
Pins 5,6 are not connected on Acer n30.

USB cable pinout

USB Pin	USB Signal	Acer pin(s)
1	USB +5V	18,19,24,25,26
2	USB D-	13
3	USB D+	14
4	Gnd/shield	1,2,3