1 Part Names and Functions
1-8
NB-series Programmable Terminals Setup Manual(V107)
USB HOST
NB-TW01B is equipped with USB HOST port, which is USB A-type port. Through this port, USB
memory can be connected to perform uploading, downloading, project operation and storage of related
data. And its pins are defined as follows:
Precautions for Safe Use
When connecting the equipment with the USB HOST connector, make sure the supply
equipment’s current capacity is below 150mA before using it. The DC+5V voltage output of the
NB Unit is +5V±5%, and the maximum current is 150mA.
USB SLAVE
USB SLAVE port is USB B-type port, which can connect the USB port on PC side to perform the
uploading, downloading and debugging of the programs for the product. And its pins are defined as
follows:
Ethernet Interface
NB-TW01B is equipped with Ethernet Interface, which is adaptive RJ-45 type interface with the
transmission rate of 10M/100M. It can be connected with PC to perform the uploading and downloading
of the programs and the system refreshing, and can also be used to realize the communication with the
controller supporting the Ethernet communication. And its pins are defined as follows:
1 2 3 4
Pins Signals Functions
1 Vbus USB +5V power supply output
(Max. current: 150mA)
2 D- Data -
3 D+ Data +
4 GND USB power supply ground
3
41
2
Pins Signals Functions
1 Vbus USB +5V power supply output
2 D- Data -
3 D+ Data +
4 GND USB power supply ground
1
1
8
8
Pins Signals Functions
1 TD+ Sending data +
2 TD- Sending data -
3 RD+ Receiving data +
4---Not used
5---Not used
6 RD- Receiving data -
7---Not used
8---Not used
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