3onedata USB232 User Manual page 2

Vertical view
1. Power input（9~48V）
2. USB type A female
3. RS-485/422 terminal block
4. RS-232 DB9 male
5. Wall mounting
6. LOGO information
7. Power supply indicator
8. Serial transmit data indicator
9. Serial receive data indicator
【Appearance and dimension】
Unit（mm）
【Power supply input】
USB232/485/422 can plug and play, external power supply
or USB port provide power or both of them. Power input has 3
bits terminal block（V-, FG, V+）, V-, V+ is 9VDC～48VDC.
The power supply support non polarity, It can work steadily if
connection opposite too.
【PIN define】
USB232/485/422converter, RS-485/422 side adopts 5 bits
5.08mm terminal block, RS-232 side adopts DB9 male, USB side
adopt USB type A female.
DB9 PIN define as follows:
DB9F（female） DB9M（male）
DB9 male PIN define is as follows:
PIN RS-232 signal
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9
—
RS-485/422 terminal block:
PIN RS-485
1 D+
2 D-
3
—
4
—
5
—
RS-485/422 terminal block
USB PIN define:
1
2
Type A
USB 3
4
USB A female USB A male
【USB cable】
AM USB
USB232/485/422 provide 1pcs USB interface, it located in
front panel of the products, and can use USB cable connect to PC
and loading, install the driver.
RS-422
T+
T-
GND
R+
R-
VCC
D-
D+
GND
AM USB