User manual

21 Chapter 3
The jumper settings are schematically depicted in this manual as follows:
A pair of needle-nose pliers may be helpful when working with jumpers.
If you have any doubts about the best hardware configuration for your
application, contact your local distributor or sales representative before
you make any changes.
3.3 COM2 RS-232/422/485 Jumper setting (J3/J4/J5)
The COM2 port located on rear metal face plate of ARK-3382 unit which
can be configured to operate in RS-232, RS-422 or RS-485 mode by set-
ting up the Jumper Pins of J3/J4/J5 located on internal motherboard of
ARK-3382 unit. Please also refer to Chapter 6 “Full Disassembly Proce-
dure” of ARK-3382 Embedded Box Computer”.
(*): means default setting of the jumper/function
The default setting of COM2 is RS-232. The RS-422/485 mode of COM2
can be supported via replacing the internal cable and adjust the jumper
inside of system.
3.4 LCD Power Jumper Setting (J6)
The ARK-3382 series of embedded box computer provide a jumper of
JP6 located on internal PCM-9380 or PCM-9386 motherboard for select-
ing the LCD signal power of 5V or 3.3V. When you connect your LVDS
LCD Panel display, you need to set up this JP6 for LCD power setting
selection for your LVDS Panel display.
Table 3.1: COM2 RS-232/422/485 Jumper Selection
Function Setting
RS-232 * J3 (1-2 closed) (J4, J5 open)
RS-422 J4 (1-2 closed) (J3, J5 open)
RS-485 J5 (1-2 closed) (J3, J4 open)