8
signal 1
3
Cash drawer on/off
status signal
In
4
+24VDC
——
5
Cash drawer driver
signal 2
Out
6
Signal ground
——
2.3.4 Power Connection
POS890 uses the external power supply adopter as 24V±10
％
,2A,
power socket is A-1009-3P model, as Fig. 2-5 shows:
The pin assignment is as below:
Pin No.
Signal
1
+24VDC
2
Ground
3
NC
Fig.2-5 Definition of power socket and pin
