Acer Aspire T180 Service Manual page 73

COM2: Onboard serial port header
Pin Signal Name
1 NDCBD
2 NSINB
3 NSOUTB
4 NDTRB
5 GND
6 NDSRB
7 NRTSB
8 NCTSB
9 NRIB
10 Key
Rear I/O Panel Connectors
PS2 Mouse: Use the PS/2 mouse port to connect a PS/2 pointing device
PS2 Keyboard: Use the PS/2 keyboard port to connect a PS/2 keyboard
Parallel Port(LPT1): Use LPT to connect printers or other parallel communication devices
Serial Port(COM1): Use the COM port to connect serial devices such as mice, fax, or modems
VGA Port: Connect your monitor to the VGA port
LAN Port(optional): Connect and RJ-45 jack to the LAN port to connect your computer to the
network
Chapter 5
Function
Data carry detect
Serial Data In
Serial Data out
Data terminal ready
Ground
Data set ready
Request to send
Clear to send
Ring Indicator
No pin
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