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Product short description:
  • 8 asynchronous full duplex EIA/TIA-422B serial ports (supports EIA-485)
  • 64-byte FIFO buffers
  • Interrupt support
  • Programmable baud rate (up to 1.8432Mbps)

These modules provide eight asynchronous serial communication ports from a single PMC Socket. Software-configuration helps you quickly set baud rates, character-sizes, stop bits, and parity.

For more efficient data processing, each serial port is equipped with 64-character FIFO buffers on the transmit and receive lines.

The data ports generate individually controlled transmit, receive, line status, data set, and flow control interrupts. A global interrupt source register provides interrupt status indication for all eight channels to speed up interrupt parsing.

Specifications

RS422B Serial Ports

Configuration: Independent, non-isolated serial ports with a common single return connection.
Data rate: 20MB /second, maximum. Standard crystal limits data rate to 1.8432Mbps.
Max. cable length: 1200 meters (4000 feet), typical.
Character size: 5 to 8 bits, software-programmable.
Parity: Odd, even, or no parity; software-programmable.
Stop bits: 1, 1-1/2, or 2 bits; software-programmable.
Data register buffers: Double buffered or 64-byte FIFO buffered, mode selectable.
Interrupts: Receiver line status (overrun, parity, framing error, or break interrupt); receive/transmit FIFO level reached or character time-out; Xon/Xoff or special character detected.

Environmental

Operating temperature: 0 to 70°C (PMC521-64) or -40 to 85°C (PMC521-64E).
Storage temperature: -55 to 125°C.
Relative humidity: 5 to 95% non-condensing.
Power: +5V (±5%), consult factory for current specifications.
MTBF: 2,321,047 hrs at 25°C, MIL-HDBK-217F, notice 2.

PMC Compliance

Conforms to PCI Local Bus Specification, Revision 2.3 and CMC/PMC Specification, P1386.1.
4K Memory Space Required: One Base Address Register.
Signaling: 3.3V and 5V compliant.

  • Eight asynchronous, full duplex EIA/TIA-422B serial ports (supports EIA-485)
  • 64-byte transmit FIFO buffers
  • 64-byte receive FIFO buffers
  • Programmable baud rate (up to 1.8432Mbps)
  • Line-break and false start-bit detection
  • Failsafe receivers
  • Socketed termination and bias resistors
  • Industry-standard software-compatible 16C550 configuration registers
  • 0 to 70°C (PMC521-64) or -40 to 85°C (PMC521-64E)
PCISW-API-LNX (Log in to download the file)
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Additional information

Weight 16 oz
Dimensions 7 × 5 × 1 in
Part Number

PMC521: front I/O connector, PMC521E: front I/O connector, extended temp. range, PMC521R: rear I/O connector, PMC521RE: rear I/O connector, extended temp. range

  • Description

    These modules provide eight asynchronous serial communication ports from a single PMC Socket. Software-configuration helps you quickly set baud rates, character-sizes, stop bits, and parity.

    For more efficient data processing, each serial port is equipped with 64-character FIFO buffers on the transmit and receive lines.

    The data ports generate individually controlled transmit, receive, line status, data set, and flow control interrupts. A global interrupt source register provides interrupt status indication for all eight channels to speed up interrupt parsing.

    Specifications

    RS422B Serial Ports

    Configuration: Independent, non-isolated serial ports with a common single return connection.
    Data rate: 20MB /second, maximum. Standard crystal limits data rate to 1.8432Mbps.
    Max. cable length: 1200 meters (4000 feet), typical.
    Character size: 5 to 8 bits, software-programmable.
    Parity: Odd, even, or no parity; software-programmable.
    Stop bits: 1, 1-1/2, or 2 bits; software-programmable.
    Data register buffers: Double buffered or 64-byte FIFO buffered, mode selectable.
    Interrupts: Receiver line status (overrun, parity, framing error, or break interrupt); receive/transmit FIFO level reached or character time-out; Xon/Xoff or special character detected.

    Environmental

    Operating temperature: 0 to 70°C (PMC521-64) or -40 to 85°C (PMC521-64E).
    Storage temperature: -55 to 125°C.
    Relative humidity: 5 to 95% non-condensing.
    Power: +5V (±5%), consult factory for current specifications.
    MTBF: 2,321,047 hrs at 25°C, MIL-HDBK-217F, notice 2.

    PMC Compliance

    Conforms to PCI Local Bus Specification, Revision 2.3 and CMC/PMC Specification, P1386.1.
    4K Memory Space Required: One Base Address Register.
    Signaling: 3.3V and 5V compliant.

  • Features & Benefits

    • Eight asynchronous, full duplex EIA/TIA-422B serial ports (supports EIA-485)
    • 64-byte transmit FIFO buffers
    • 64-byte receive FIFO buffers
    • Programmable baud rate (up to 1.8432Mbps)
    • Line-break and false start-bit detection
    • Failsafe receivers
    • Socketed termination and bias resistors
    • Industry-standard software-compatible 16C550 configuration registers
    • 0 to 70°C (PMC521-64) or -40 to 85°C (PMC521-64E)
  • Specs & Data Sheets

  • Software

    PCISW-API-LNX (Log in to download the file)
  • Accessories

    • Compare

      502x Cable Series

      • Communication Signal Cables
      • Wide assortment of ribbon cables
      $45$705
      Select options
    • Compare

      PCISW-API-WIN

      • Support for Acromag XMC, PMC, PCI, CompactPCI cards
      $390
      Select options
    • Compare

      PMCSW-API-VXW: VxWorks Libraries

      • VxWorks function libraries for XMC, PMC, PCI and CompactPCI products (except IP carriers)
      • Supports any CPU target with quick modification.
      • API easily convertible for any operating system
      $995
      Select options
    • Compare

      Termination Products

      • DIN rail-mount panels
      • 50 screw terminals on 50-pin connector termination panels
      • 50 screw terminals on SCSI-2 connector termination panels
      • 68 screw terminals on SCSI-3 connector termination panels
      $170$245
      Select options
  • Additional information

    Additional information

    Weight 16 oz
    Dimensions 7 × 5 × 1 in
    Part Number

    PMC521: front I/O connector, PMC521E: front I/O connector, extended temp. range, PMC521R: rear I/O connector, PMC521RE: rear I/O connector, extended temp. range