SPRT SP-POS891, User Manual, Page: 10 / 17

8
The pin assignment is as below:
Pin No. Signal Direction
1 Chassis Ground ——
2 Cash drawer driver
signal 1
Out
3 Cash drawer on/off
status signal
In
4 +24VDC ——
5 Cash drawer driver
signal 2
Out
6 Signal ground ——
2.3.5 Power Connection
POS891 uses the external power supply adopter as 24V±10
％
,1.5A,
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.2-6 Definition of power socket and pin
2.4 Buzzer, Buttons and Indicators
There is one button and one inner buzzers and three indicators on POS891 printer.