Following ports show all of ports of system.
a. DC IN: connector for power adapter input 12VDC.
b. Cash Drawer: provide IO port address 280H for cash drawer control by RJ11.
c. COM 1/2: standard D sub serial port with 5V / 12VDC selected on pin9.
d. LAN: 10 / 100 base-T by RJ45 connector.
e. USB: play and plug USB 2.0.
f. Power Switch: toggle switch for power on.
g. MSR PS2: for attached MSR PS2 interface connection.
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