At/Atx Mode Selection; Com2 Rs-232/422/485 Selection; Com2 Pinouts; Figure 3-17: At/Atx Switch Location - IEI Technology AFL3-W10A-AL User Manual

AFL3-W10A/12A/W15A-AL Panel PC

3.9 AT/ATX Mode Selection

AT or ATX power mode can be used on the AFL3-W10A/12A/W15A-AL. The selection is
made through an AT/ATX switch located on the bottom panel (Figure 3-17).

Figure 3-17: AT/ATX Switch Location

3.10 COM2 RS-232/422/485 Selection

The bottom panel of the AFL3-W10A/12A/W15A-AL has one D-sub 9 male connectors for
RS-232/422/485 connection. The serial communication mode selection can be made
through the BIOS options. Please refer to Section 4.3.2.1.2 for detail information.

3.10.1 COM2 Pinouts

The pinouts of COM2 are detailed below.
Pin RS-232
1 DCD
2 RX
3 TX
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI

Table 3-1: RS-232/422/485 Serial Port Pinouts

RS-422 RS-485
TXD422- TXD485-
TXD422+ TXD485+
RXD422+
RXD422-
Page 33