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2.3 Jumpers and connectors
Connectors on the board link it to external devices such as hard disk
drives, a keyboard or expansion bus connectors. In addition, the board
has a number of jumpers that allow you to configure your system to
suit your application.
The table below lists the function of each of the board jumpers and
connectors:
Table 2-1: Jumpers
10
Label
Function
J1
CMOS Charge & Discharge
J2
LAN Power select
JP2
RS-232/RS-422/RS-485 select
JP3
DOC® 2000 Address select
JP4
Watchdog timer
PCA-6741 User's Manual