Serial Port Interface Connectors (Cn11, Cn20, Cn28) (Rs232); Ps/2 Keyboard And Mouse Connectors (Cn4) - AXIOMTEK IMB202 Series User Manual

2.4.3 Serial Port Interface Connectors (CN11, CN20,
CN28) (RS232)
The serial interface for the board consists of COM2 port (CN11), COM3
(CN20) and COM4 (CN28) supports RS-232.
Connector: COM2 (CN11), COM3 (CN20), COM4 (CN28)
Pin
1 Data Carrier Detect (DCD)
2 Data Set Ready (DSR)
3 Receive Date (RXD)
4 Request to Send (RTS)
5 Transmit Data (TXD)
6 Clear to Send (CTS)
7 Data Terminal Ready (DTR)
8 Ring Indicator (RI)
9 GND
10 NC

2.4.4 PS/2 Keyboard and Mouse Connectors (CN4)

CN4 is a DIN connector for PS/2 Mouse and PS/2 keyboard connection.
Pin Signal
1 Keyboard Data
2 GND
3 GND
4 VCC
5 GND
6 Mouse Clock
Jumpers and Connectors
IMB202 LGA775 ATX Board User's Manual
Signal
Pin Signal
7 GND
8 Mouse Data
9 GND
10 VCC
11 GND
12 Mouse Clock
13