1 Part Names and Functions Serial Port COM2 • NB5Q/NB7W/NB10W-TW B Serial port COM2 is a 9-pin D-type socket port. This port supports RS-232C/RS-485/RS-422A communication function. The pins are defined as follows: 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: 1 2 3 4 When you get power supply from USB host connector of the NB Unit, confirm the consumption current of connecting devices is below 150mA. The voltage output of the NB Unit for the NB Unit is +5V±5%.
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 the Pictbridge printing. And its pins are defined as follows:
3 2 4 1 1-8 NB-series Programmable Terminals Setup Manual(V107) Pins Signals I/O Functions RS-232C RS-485 RS-422A 1 SDB+ I/O - - Sending data(+) 2 SD O Sending data - - 3 RD I Receiving data - - 4 Terminal R1 - - Terminal resistor 5 Terminal R2 - - Terminal resistor 6 RDB+ I/O - Send/Receive data(+) Receiving data(+) 7 SDA- I/O - - Sending data(-) 8 RDA- I/O - Send/Receive data(-) Receiving data(-) 9 SG - Signal ground Pins Signals Functions 1 Vbus Vbus +5V power supply output (Max. current: 150mA) 2 D- Data - 3 D+ Data + 4 GND Vbus ground Precautions for Safe Use Pins Signals Functions 1 Vbus Vbus 2 D- Data - 3 D+ Data + 4 GND Vbus ground