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Jumpers and Connectors
Connectors on the board link it to external devices such as
hard disk drives, a keyboard, or floppy drives. 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:
Jumpers
Label
Function
JP1
LCD/EL select
JP2
SSD battery backup select
JP3
SRAM
JP4
COM2 RS-232/422/485 select
JP5
Flash/EPROM
JP6
SSD/IO/address select
JP7
SSD/I/O address select
JP8
Keyboard lock CON
JP9
Battery select
JP10
Speaker connector
JP12
HDD LED connector
JP13
RESET connector
JP14
CMOS clear
JP15
Watchdog select
Connectors
Label
Function
CN1
IDE hard drive connector
CN2
Floppy drive connector
CN3
Parallel port connector
CN4
LCD connector
CN5
Power connector
CN6
VGA connector (PCA-6135 only)
CN7
COM2 (RS-422/485)
CN8
COM2 (RS-232)
CN9/CN11 PC/104
CN10
COM1
CN12
PS/2 keyboard connector
CN13
External keyboard connector
U9,U14,U18 SSD memory socket
2
PCA-6135/6135L Startup Manual
Jumper Settings
CMOS clear(J14)
*3.0V Battery On
J14
1-2
SSD I/O address select (J6, J7)
J6
J7
close
close
open
close
close
open
open
open
Watchdog timer system reset/IRQ 15 select
Reset
1
J15
Battery (internal/external) select
Internal Battery
1
J9
Note: You must apply battery when using SRAM
LCD type control select
LCD*
1
J1
COM2 settings for RS-232/422/485
RS-232
2
6
J4
1
5
default setting*
Clear CMOS
1-3
SSD
disable
210H
210H
210H
IRQ15
1
External Battery
3~5 V
DC
EL
1
RS-422
RS-485
2
6
2
1
5
1
6
5
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