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ACCES I/O
PC/104-Plus (optional PCI-104) eight-port RS-232 serial communication board


1092470_ACCESIO_PRODUCTS__P104COM2328.jpg-
Manufacturer ACCES I/O
Mfg. Part # P104-COM232-8
ITEM# 572828
Unit Price $281.37 (~CAD$350.73)
Availability Back Order
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[ Detailed Explanation ]
Product Description:
FEATURES
  • High Performance Octal PCI UART
  • 16550 Compatible Register Set
  • Up to 460Kb/s Serial Data Rate
  • Global Interrupt Source Register
  • Data Transfer in Byte, Word, and Double-Word
  • 64-Byte Transmit and Receive FIFOs per each of eight UARTs
  • Transmit and Receive FIFO Level Counters
  • Programmable Trasmit and Receive FIFO Trigger Level

    • FUNCTIONAL DESCRIPTION

    The P104-COM232-8 is an eight channel RS-232 communication instrument. Based on the XR17D158, the card has eight enhanced 16550 UARTs, each with a set of modem signals (CTS, RTS, RI, DTR, DSR, CD). A 460Kb/s rate is guaranteed for all channels with up to 3K Ohm 1000pF loads. All interrupts may be monitored at a 32-bit status register. Each UART has both a 64 byte transmit and a 64 byte receive FIFO.

    The typical quiescent current draw from the user's 5V supply is less than 60mA (with P1 and P2 disconnected). If every transmitter line is loaded with 3K Ohm, current draw should still be less than 150mA.

    Linus drivers and sample programs are supplied with the card.

    SOFTWARE

    The provided Windows drivers are 100% compatible with the normal Microsoft-provided Serial Application Programming Interface. This means every program you've ever used with a standard serial port in Windows will also work with these ports, no problem. In addition, we provide several utility and sample programs to help you write your own code, if you're not using something off-the-shelf.

    Specification

    • PCI Bus: Rev. 2.3
    • PC/104 Bus: Feedthrough only, no connection to the P104-COM232-8
    • I/O Space: Requires 4k

    16550 Compatible

    • Data Size: 5, 6, 7 or 8 bits
    • Stop bit length: 1, 1.5 or 2 bits
    • Parity: Odd, even, none, forced to 1, or forced to 0
    • Break condition: On or off
    • Maximum Baud Rate: 460.8Kb/s (transceiver limit with full load)
    • Full Duplex Operation
    • Eight 64 Byte Transmit FIFO, 64 Byte Receive FIFO (16C550 FIFO = 16 Bytes)
    • S/W programmable FIFO trigger levels (16C550 trigger levels are fixed)
    • 12 standard registers for UART monitoring and control plus special registers
    • Loop-back mode
    • Scratch pad register

    Transceiver I/O Characteristics

    • Receiver Input Resistance: 3K to 7K ohm
    • Receiver Input Sensitivity: ±3V
    • Receiver Input Voltage Range: ±15V
    • Driver Slew Rate: 30V/µS
    • Driver Load Impedance: 3K to 7K ohm
    • Driver Output Signal Level
      • Loaded ±5V
      • Unloaded ±15V
    • Transceiver ESD Characteristics
      • ±15KV Human Body Model
      • ±15KV Air Discharge
      • ±8KV Contact Discharge
    • Communications Interface: Eight channels split between two 40 pin male headers
    • Meets or exceeds the IEEE RS-232 standard

    Environmental

    • Operating Temperature Range: -40°C to +85°C
    • Humidity: 5% to 95%, non-condensing
    • Storage Temperature Range: -65°C to +125°C
    • Power Required: 50mA quiescent, 150mA maximum
    • Size: PC/104-Plus format, 3.5" x 3.75"



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