| 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 |
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 |
