Note:
If JP3 jumper set to be RS232, the RS232 connector will be CN20
(UART1) header. If JP3 jumper set to be RS422 and RS485, the connector will
be CN22 header. User can only choose one (RS232 or RS422 or RS485) at
the same time.
S1: Location on Board, D6
Table 1.5 Reset Button
Table 1.5
Reset Button
Setting Function
Press Button and
Release Immediately
Reset CPU and IO
Setting Jumpers
You configure your board to match the needs of your application by setting
jumpers. A jumper is the simplest kind of electric switch. It consists of two
metal pins and a small metal clip (often protected by a plastic cover) that slides
over the pins to connect them. To "close" a jumper you connect the pins with
the clip.
To "open" a jumper you remove the clip. Sometimes a jumper will have three
pins, labeled 1, 2 and 3. In this case you would connect either pins 1 and 2 or 2
and 3.
The jumper settings are schematically depicted in this manual as follows.
