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6 serial port connector (com 1), Figure 4-24: ps/2 pinouts, Table 4-25: keyboard connector pinouts – Intel iEi Motherboard A300 User Manual

Page 71: A300 motherboard, Page 56

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A300 Motherboard

Figure 4-24: PS/2 Pinouts

PIN NO. DESCRIPTION PIN NO. DESCRIPTION

1 KB

DATA 7 MS

DATA

2 NC

8 NC

3 GND

9 GND

4 5V

10

5V

5 KB

CLK 11

MS

CLK

6 NC

12

NC

Table 4-25: Keyboard Connector Pinouts

4.3.6 Serial Port Connector (COM 1)

CN Label:

CN1.B

CN Type:

DB-9 connector

CN Location:

See Figure 4-20

CN Pinouts:

See Table 4-26 and Figure 4-25

The 9-pin DB-9 COM 1 serial port connector is connected to RS-232 serial

communications devices.

PIN NO. DESCRIPTION PIN NO. DESCRIPTION

1 DCD1

2 DSR1

3 RX1

4 RTS1

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