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1 DATECS
DPP-255
User’s Manual
UM 07.01.01/v1.0.0
20
7. Interfaces
7.1. USB
The DPP-255 is equipped with USB version 2.0 for high speed data transfer. The device class is
“Printing Device Class”
Pin
Signal
Direction
Function
1
VBUS
-
Detect connect/disconnect of USB
2
D-
I/O
USB data (-)
3
D+
I/O
USB (+)
4
N/A
5
GND
-
GND
7.2. Serial
Connector: Mini-B type 10-PIN
Cable: Use specified serial cable
Pin
Signal
Function
RxD
Input
Serial data input
TxD
Output
Serial data output
GND
GND
Baud rate:
1200 to 115200bps
Parity:
None
Bit length:
8 bit
Busy control:
Software control(XON/XOFF)/None
7.3. Bluetooth
The DPP-255 printer is equipped with Bluetooth module obtained MFi license which can be
communicated with the device of iOS including iPhone, iPod, and iPad. Besides iOS devices, Android
and PC terminals can be communicated through SPP profile and the printer is widely used for
electronic equipment.
PIN code: 0000
1) If 1Mbites or larger data are sent to the printer during BT communications, the printer buffer becomes over
loaded and it causes the printer not to print properly.
2)It is recommended to change the default PIN code of the printer.
3) In case of interference occurred at the circumstance, turn off the power of interrupted devices ot move the
place where is not influences.