NLV
-
3101
-
HD
Specifications Manual
12
6.2.
USB
The USB interface models have two specifications: HID (Human Interface Device Class) and COM
(Communication Device Class). With USB-COM model, VCP (Virtual Communication Port) allows
virtual serial communication and the commands can be transmitted from the host computer.
* Multi byte character data or images can be transmitted via USB-COM interface.
6.2.1.
USB Interface Specifications
Power supply : 500mA (High-Power).
Speed
: Full-speed (12 Mbps)
Interface
: USB-HID / USB-COM (VCP)
* The USB model is
bus powered and no AC adapter is required.
* Images cannot be transmitted via the USB-HID interface.
* Multi byte character data can be transmitted via USB-HID interface with settings.
* Make sure to connect to a High-power bus (500 mA max) USB terminal.
6.2.2.
Connector
Figure 7: USB Plug (A)
Pin No.
Signal name
Note
1
V bus
2
Data (
‐
)
3
Data (
+
)
4
GND
6.2.3.
USB Interface Circuit
Figure 8: Interface Circuit (USB)
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