IEI Technology AFL2D-12A-N270-ECIL, User Manual

Page: 41 / 147

AFL2D-12A-N270-ECIL Panel PC
Page 41
4.7 Jumper Settings
NOTE:
A jumper is a metal bridge used to close an
electrical circuit. It consists of two or three metal
pins and a small metal clip (often protected by a
plastic cover) that slides over the pins to connect
them. To CLOSE/SHORT a jumper means
connecting the pins of the jumper with the plastic
clip and to OPEN a jumper means removing the
plastic clip from a jumper.
The following jumpers can be found on the motherboard installed in the
AFL2D-12A-N270-ECIL. Before the AFL2D-12A-N270-ECIL is installed, the jumpers must
be set in accordance with the desired configuration. The jumpers on the
AFL2D-12A-N270-ECIL motherboard are listed in
Table 4-1
.
Description Label Type
Clear CMOS J_COMS1 2-pin header
COM1 Pin 9 setting JP8 10-pin header
COM3 Pin 9 setting JP10 6-pin header
COM3 RX RS-232/422/485 select JP9 8-pin header
COM3 TX RS-422/485 select JP11 6-pin header
COM3 RS-232/422/485 select JP6 12-pin header
Table 4-1: Jumpers
4.7.1 Access the Jumpers
To access the jumpers, remove the back cover. To remove the back cover, please refer to
Section 4.5 Step 1 ~ Step 4
.