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ECB-870
ECB-870 User’s Manual 19
3.8.2 Jumper & Connector List
Connectors on the board are linked to external devices such as hard disk drives, keyboard,
mouse, or floppy drives. In addition, the board has a number of jumpers that allow you to
configure your system to suit your application.
The following tables list the function of each of the board's jumpers and connectors.
Jumpers
Label Function Note
J1
Serial port RS-232/422/485 select 2 x 2 header, pitch 2.54mm
J2
Serial port RS-232/422/485 select 3 x 2 header, pitch 2.54mm
J82559
LAN2 Enable / Disable select 3x 1 header, pitch 2.54mm
JCSEL
Watchdog timer select 4 x 3 header, pitch 2.54mm
JDOC
M-Systems DiskOnChip memory address
select
4 x 2 header, pitch 2.54mm
JDOM
DiskOnModule power select 2x 1 header, pitch 2.54mm
JRAID
RAID Enable / Disable select 3x 1 header, pitch 2.54mm,
(ECB-870R Only)
JRTC
Clear CMOS 3 x 1 header, pitch 2.54mm
JWDT
Watchdog timer select 3 x 1 header, pitch 2.54mm