Fastcom®: 422/2-PCI Asynchronous Dual Port RS422/485 Interface Adapter   $475.00

The FASTCOM: 422/2-PCI adapter is the fastest (1.5Mbps), most advanced, two-port RS422 adapter in the industry. Primarily designed for commercial, industrial, and OEM applications, the FASTCOM: 422/2-PCI features two discrete RS422 channels, complete with RTS and CTS flow control signals.

The advanced 16C850 UART on the FASTCOM: 422/2-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 plus a high speed mode capable of up to an amazing 1.5Mbps.

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: 422/2-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 1.5 Mbps

• +5 500mA (typical)

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

• CE Certified
• Two independent RS422 / RS485 channels
• 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: 422/2-PCI, no extra charge
    
• All standard and non-standard baud rates up to 1.5Mbps
  • Features on-board clock generator to easily 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 2 DB9 connectors
• Documentation and software drivers included
• Designed and manufactured by COMMTECH, INC. Wichita, Kansas, USA