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2-Port RS232/422/485 Combo Serial to USB2.0 Adapter 

 

 
 

 

DB9-Male Pin Assignment: 

 

 

 

 

 

 

RS422 Cable Wiring:   

 

 

 

 

6. RS422/485 Modes Male DB9 Pin Assignments and 

DB9 (RS422 to USB Cable)

NC = No connection

1                        5 

6                      9 

9 Pins   Signal

  1       TXD-  (DATA-) 
  2       TXD+  (DATA+) 
  3       RXD+ 
  4       RXD- 
  5       GND 
  6       NC 
  7       NC 
  8       NC 

 9       NC

 

  1  TXD- 
  2  TXD+ 
  3  RXD+ 
  4  RXD- 

5 GND

(RS422 Device) 

  1  TXD- 
  2  TXD+ 
  3  RXD+ 
  4  RXD- 

5 GND

RS485 (2-wire) Cable Wiring:   

DB9 (485 to USB Cable) 

  1  DATA- 
  2  DATA+ 
  3  NC 
  4  NC 
  5 GND 

(RS485 Device) 

  1  DATA- 
  2  DATA+ 
  3  NC 
  4  NC 
  5  GND

 

 

 

 

 

 

5. Environmental Specifications 

Power requirements:   

5V DC, 385mA (max) 

Operating temp.: 

0 to 55

°

C (32 to 131

°

F

Operating humidity: 

5 to 95% RH 

 

6

 

 

Содержание 2-Port RS232/422/485 Combo Serial to USB2.0Adapter

Страница 1: ...or server via the Universal Serial Bus USB providing high speed serial connectivity The serial ports are fully compatible with RS232 422 485 standard by the bundled virtual COM port drivers With its rigid metal case and USB Screw Lock Mechanism it is an ideal solution for most critical applications 1 Port 1 Port 2 2 Connector Layout Port 1 Mode LEDs Screw Lock USB Cable Rear Panel Port 2 TX RX Act...

Страница 2: ...rms Isolation and 15KV ESD Protection 9 Supports Win98 Me XP CE 2K 2K3 Vista and Windows 7 There are two 4 pin DIP switches on the back side of the box for Port 1 and Ports 2 Each of them has 4 switch pins on it Pin 1 to 2 marked as M1 and M0 were used to set the RS232 RS422 or RS485 modes The Pin 3 and 4 marked as TERM ON are used to Enable ON or Disable OFF the termination resistors for RS422 48...

Страница 3: ...TERM ON TERM ON RS422 mode ON 1 2 3 4 M1 M0 TERM ON TERM ON RS232 mode Note Both Pin 3 and 4 have to be set at OFF to work in RS232 Mode ON 1 2 3 4 M1 M0 TERM ON TERM ON The image above shows how the TERM ON pins modifies the circuit The TERM ON pins can apply 1K pull up pull down resistors ...

Страница 4: ...d with the product If you are installing drivers for Win98 ME 2000 or XP when prompted for the location of the drivers specify your CD ROM drive and the locations according to the following table 4 Installing Drivers Linux Mac OS 9 x 8 x Mac OS X Windows 2000 XP Server 2003 Windows 98 98SE ME Windows CE for ARM Windows CE for ix86 Windows XP 64bit 2 Installing Serial Port Drivers for Win98 ME 2000...

Страница 5: ...omplete the driver installation After installing the drivers Windows will detect the new COM ports and will begin to initialize them Your new COM ports numbered sequentially following the existing ports in your system and they are now ready 5 RS232 Mode Male DB9 Pin Assignments and DB9 Male to DB9 Male Wiring 1 5 6 9 9 Pins Signal 1 DCD 2 RXD 3 TXD 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 RI DB9 USB Adapte...

Страница 6: ...s Signal 1 TXD DATA 2 TXD DATA 3 RXD 4 RXD 5 GND 6 NC 7 NC 8 NC 9 NC 1 TXD 2 TXD 3 RXD 4 RXD 5 GND RS422 Device 1 TXD 2 TXD 3 RXD 4 RXD 5 GND RS485 2 wire Cable Wiring DB9 485 to USB Cable 1 DATA 2 DATA 3 NC 4 NC 5 GND RS485 Device 1 DATA 2 DATA 3 NC 4 NC 5 GND 5 Environmental Specifications Power requirements 5V DC 385mA max Operating temp 0 to 55 C 32 to 131 F Operating humidity 5 to 95 RH 6 ...

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