PRODUCTS > USB to RS-422/485 > Compact > USB-COMi-CBL

USB-COMi-CBL

Products Manual
USB-COMi-CBL - USB to RS-422/485 Adapter

Features

  • Adds a high speed RS-422/485 serial port via USB conncetion

  • 256 bytes receive buffer for high speed data throughput

  • 128 bytes transmit buffer for high speed data throughput

  • Requires no IRQ, DMA, I/O port

  • Data rates: 300bps to 1Mbps

  • Connector: one DB9 male connector

  • Automatic transmit buffer control for 2-wire RS-485 half-duplex operation

  • RS-422 (4 wire) data signals: TxD-, TxD+, RxD+, RxD-, GND

  • RS-485 (4 wire) data signals: TxD-, TxD+, RxD+, RxD-, GND

  • RS-485 (2 wire) data signals: data-, data+ GND

  • Monitor LEDs of TxD, RxD indicating port status

  • Easy operating mode configuration and setting

  • Provides 15KV ESD protection and 600W surge protection for all serial signals

  • FTDI virtual COM port drivers provided for Windows 8, 7, Vista, Server 2012, 2008, 2003, XP, 2000

  • Linux kernel 2.4 and up built-in support. No driver installation required.

  • Wide ambient temperature operation 0°C to 60°C (32°F to 140°F)

  • CE, FCC approval

USB-COMi-CBL
 
USB Bus
Compliance USB 1.0/1.1 compliant, USB 2.0 compatible
Speed 12 Mbps, full-speed USB
FIFO 128 byte transmit FIFO
384 receive FIFO
   
Serial Interface
Port Type RS-422/RS-485
Number of Ports 1
   
Serial Line Protection
ESD Protection 15kV
   
Serial Port Speed
Baudrate 300bps to 1Mbps
   
Serial Communication Parameters
Data Bits 5, 6, 7, 8
Stop Bits 1, 1.5, 2
Parity None, Even, Odd, Space, Mark
Flow Control RTS/CTS, XON/XOFF
   
Serial Signals
RS-422 TxD-, TxD+, RxD+, RxD-, GND
RS-485-4 wire TxD-, TxD+, RxD+, RxD-, GND
RS-485-2 wire Data-, Data+, GND
   
Driver Support
OS Windows 8, 7, Vista, Server 2012, 2008, 2003, XP, 2000
   
Power Supply
Input Bus-powered
No external power adapter required
   
Mechanical
Chassis Plastic, ABS
   
Environmental
Operating Temperature 0 to 60 °C (32 to 140 °F)
Operating Humidity 5 to 95% RH
Storage Temperature -20 to 75 °C (-4 to 167 °F)
Safety Approvals CE, FCC
 

   RS-485 4 Wire Full Duplex Mode Pin-out

Pin Signal
1 TxD- Transmit Data, negative polarity
2 TxD+ Transmit Data, positive polarity
3 RxD+ Receive Data, positive polarity
4 RxD- Receive Data, negative polarity
5 GND Signal Ground
 

   RS-485 2 Wire Half Duplex Mode Pin-out

Pin Signal
1 Data- Transmit/Receive Data, negative polarity
2 Data+ Transmit/Receive Data, positive polarity
5 GND Signal Ground