JARLTECH JP8031 series, Operation Manual

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Keyboard AUX Port
#1: Keyboard data(AUX 1)
#2: Keyboard data(AUX2)
#3: Ground
#4: + 5V
#5: Keyboard clock(AUX1)
#6: Keyboard click(AUX 2)
RS232 AUX Port (Male)
#1: #6: RTS
#3: RX #9: +12V/+5V DC power
#5: Ground
RS232 HOST Port (Female)
#1: #7: RTS
#2: RX #8: CTS
#3: TX #9: +12V/+5V DC Power
#5: Ground
Keyboard Host port
#1: Keyboard data
#3: +5 V
#4: Ground
#5: Keyboard clock
Specifications of Connecter and Switcher
Connector Pin Assignments
Appendix II
Switcher
SW1
ON : Enable RS232 Host Data In
: Disable RS232 AUX Data In
OFF: Disable RS232 Host Data in
: Enable RS232 AUX data In
SW2
ON: Reset 8031 to Default setting.
Switch pin to ON until beep sound
appear(around 3~5 sec.), then, switch it
to OFF.(The switching time should be
finished in 2 sec.)
Switcher