Fastcom®: IG422/1-PCI Asynchronous Fully Isolated Single Port RS422/485 Interface Adapter   $449.00

The FASTCOM: IG422/1-PCI adapter is a fully isolated RS422 / RS485 adapter designed for commercial, industrial, and OEM applications. The FASTCOM: IG422/1-PCI features one RS422 channel, complete with RTS and CTS flow control signals.

Most RS422 adapters that advertise isolation provide only partial isolation for the signal lines. The full isolation of RS422 signal lines and Ground provided by the FASTCOM: IG422/1-PCI is extremely important to any industrial/commercial application that requires high reliability, data integrity, and system safety. The FASTCOM: IG422/1-PCI is designed to provide full isolation from a remote RS422 device: the UART is isolated from the RS422 signals and the Ground is isolated from the power supply and chassis of the PC.

The advanced 16C850 UART on the FASTCOM: IG422/1-PCI features full compatibility with standard 16C550 and 16C650 UARTs, but also provides extraordinary 128-byte receive and transmit FIFOs for buffering. This buffering is extremely important when working with high-overhead operating systems such as Windows NT and 2000 (drivers supplied). The extra-deep FIFOs prevent data loss due to overrun and dramatically improve data throughput in all applications. Our software drivers support all standard baud rates.

Software examples and drivers are supplied for Windows 98/2000/NT/XP, and Linux Kernel 2.4.x. These drivers allow the board to be "just another com port" in the system. Programming is done using the standard WIN32 COMM API.

The FASTCOM: IG422/1-PCI is a switchless design that relies on the plug-and-play functionality capability defined in the PCI 2.1 bus specification to determine address ranges and IRQ settings.

• UART: EXAR 16C850 (Data Sheet)
• INTERFACE: RS422 / RS485
• SIGNALS:
  • TX+, TX–, RX+, RX–, RTS+, RTS–, CTS+, CTS–
• BUS: PCI
• BAUD RANGE: All standard PC baud rates; easily select any non-standard baud rates from 1 bps to 115.2 Kbits/s

• +5 500mA (typical)

• Storage Temperature Range: -20 to +70 C
• Operating Temperature Range: 0 to 70 C
• Humidity: 0 to 90% (non-condensing)

• Isolation:
  
  • 2500 Volt Opto-Isolator breakdown
  • 3700 Volt transformer breakdown
    
• CE Certified
• Transmit and Receive status LEDs
• Fully isolated ground and signal lines
• One RS422 / RS485 channel
• Excellent line noise immunity
  • Cable lengths up to 4000 feet
• RS485 Mode:
  
  • Up to 32 stations on same "twisted-pair" network
  • Line driver control:
    
    • Direct control of line drivers through RTS, or
    • Automatic control of line drivers under special UART mode using OUT1 SIGNAL
      
  • RX echo cancel in hardware for 2 wire 485
  • CTS disable function
    
• High performance 16C850 UART
  
  • Standard on the FASTCOM: IG422/1-PCI, no extra charge
    
• All standard and non-standard baud rates up to 115.2 Kbps
  
  • Features on-board clock generator to attain non-standard rates without modifying the hardware or changing the clock.
    
• 128 byte FIFOs for improved through-put
  
  • 128-byte RX FIFO with programmable level control
  • 128-byte TX FIFO with programmable level control
    
• No external cable required - interface with a DB9 connector
• Documentation and software drivers included
• Designed and manufactured by COMMTECH, INC. Wichita, Kansas, USA