7
Fig.2-2 Ethernet interface
2.3.2 USB Interface
The standard accessories of POS890 printer includes a Mini USB cable which
connects printer and main device. The USB type belongs to the slave device
type(DEVICE). Pins description of Mini-USB as Fig.2-3 below:
2.3.3 Cash Drawer Interface
The cash drawer interface of POS890 adopts RJ-11 6-pin socket, as Fig.2-5 shows:
Fig.2-4 Cash Drawer Interface
The pin assignment is as below:
Pin No.
Signal
Direction
1
Chassis Ground
——
2
Cash drawer driver Out
Pin
Function
Notes
1
V Bus
Power +5V
2
Data-
Data-
3
Data+
Data-
4
GND
Ground
Fig.2-3 USB interface
