Fidelity Electronics DM-3000 - Page 10

BOTTOM VIEW
A. ON/OFF KEY
Press this key to turn this scale on or off.
B. DC JACK INPUT
External power adaptor is plugged in here.
Output requirements of the power adaptor: -
 DC9 ~ 12V 800mA,
 Polarity: - Any kind.
C. RS232 COMPORT (DB9)
RS232 communication comport.