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6
Interface Specification
The NLV-4001 supports two types of interfaces; RS-232C, USB-COM
6.1 USB Interface
The USB interface has COM (Communication Device Class).
The VCP allows for virtual serial communication and therefore command transmission from the host
device to the scanner.
For the USB-COM interface type, our USB-COM driver must be installed on your host device. Please
use the latest version driver.
After NLV-4001 and host device are connected, while communication setting is on process, the status
LED flashes. During this time, scanning operation is unable.
When use with USB-COM specification, if host device side COM port corresponded to the NLV-4001
is close, scan data transport fail and NLV-4001 makes error sound.
6.1.1 USB Interface Specifications
Bus-power class
Speed
Interface
* The USB interface models are bus powered
* Make sure to connect to a high power bus (500 mA) USB terminal.
6.1.2 USB Connector
SPECIFICATIONS MANUAL
: 500 mA (high-power)
: Full speed (12 Mbps)
: COM (Virtual COM Port)
Item
Transfer Speed
Vendor ID
Product ID
Figure 3: USB Plug (A) Pin Assignment
Pin No.
1
2
3
4
Explanation
USB2.0 Full Speed
065A
0009 (COM)
1
2
3
4
Signal name
VCC
- Data
+ Data
GND
NLV-4001
2nd
Front view
6
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