SPRT
®
SP-TL31Thermal Label Printer User’s Manual
10
Power socket and pin assignment
3.3.2 USB interface
The standard configuration of the SP-TL24 printer is equipped with a standard USB printer
cable D-port data cable for connecting the printer to the main device. The printer's USB belongs to
the slave device type (DEVICE);
The outline and pin definitions are as follows:
USB socket and pin assignment
3.3.3 Bluetooth connection
A handheld device with Bluetooth interface, such as laptops, or other information terminals, can
drive SP-TL31 printing via the Bluetooth interface. The initial device name is “TL31/301 BT Printer”
and the initial password is “1234”. Users can use <SP-TL31/301 Setting Tool Software> to modify
the device name and password as needed. For details on how to change the device name and
password, refer to the help file of <SP-TL31/301 Setting Tool Software>.
The SP-TL31 printer must be paired with the Bluetooth master device that controls the printer
before it works. Pairing is initiated by the master device. The usual pairing process is as follows:
1, Turn on the printer
2. The master device searches for an external Bluetooth device.
3. If there are multiple external Bluetooth devices, select TL31/301 BT Printer
4. Enter the password "1234"
5. Complete the pairing.
For details on how to pair, please refer to the Bluetooth function description of the main device.
Pin No.
Function
Remark
1
V Bus
2
Data -
Data negative
3
Data +
Data positive
4
GND
Power ground
