BK-T680 User’s Manual
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6.2 USB interface
USB interface is the standard interface of the printer, which meets USB 2.0 protocol standard, and work
in full speed mode. Data transfer bit rate is 12Mbps.
6.2.1 Interface specification
Data transmission: Support USB 2.0 protocol;
Connector (printer end): USB B series socket. Support and connect through USB HUB.
6.2.2 Interface signal definition and functions
Pin No.
Signal name
Description
1
VBUS
+5V
2
DATA-
Data transmission negative end
3
DATA+
Data transmission positive end
4
GND
Grounding
Table 6.2-1 USB interface signal definition
6.2.3 Demonstration of USB interface connection
Host side
Printer side
VBUS..................................…VBUS
DATA-................................….DATA-
DATA+...................................DATA+
GND................................... .GND
6.2.4 Interface connector
Figure 6.2-1 USB interface connector
