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AP513: Quad Serial RS232 Communication

• Four Isolated RS232 Serial Ports
• Extended Temperature
• PCIe Bus Interface

These modules provide four isolated serial communication ports from a single AP carrier slot for a high-density solution. Software-configuration helps you quickly set baud rates, character-sizes, stop bits, and parity. RTS/CTS handshake support for modem control is also included.

For more efficient data processing, each serial port is equipped with 256-character FIFO buffers on the transmit and receive lines. The large buffers minimize CPU interaction for improved system performance The data ports generate individually controlled transmit, receive, line status, data set, and flow control interrupts. All interrupts can be read from a single register.

 

he AcroPack® product line updates our popular Industry Pack I/O modules with a PCIe interface format. This tech-refresh design offers a compact size, low-cost I/O, the same functionality of the existing Industry Pack modules and a rugged form factor. 

AcroPack modules are only 30mm wide and 70mm long. This is just 19.05mm longer than a full length mini PCIe card but the same width. AcroPacks also use standard mPCIe board hold down standoffs and screw keep out areas.

A down facing 100 pin Samtec connector mates with the carrier card. Fifty of these pins are available for field I/O signals. Pin spacing and signal assignments will allow for 100V of port to port isolation.

Performance Specifications

■ Serial Ports

Configuration 
Four independent, isolated RS232 serial communication ports configured as a DTE device.

Isolation
Each port has 250V of isolation from digital circuitry and100V of isolation from the other 3 ports.

UART
16550-compatible Exar 17v354.

Transceivers
Four Analog Devices LTM2882 galvanically isolated dual RS232 transceivers compatible with the TIA/EIA-232-F standard.

Data Rate
Programmable up to 1M bits/second using internal baud rate generator.

Max. Cable Length
15 meters (50 feet) typical, limited to a cable capacitive load of 2500pF.

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
256-byte receive FIFO buffer and 256-byte transmit FIFO buffer.

Interrupts
Receiver line status (overrun, parity, framing error, or break interrupt); received data available (FIFO level reached) or character time-out; transmitter (FIFO level reached); or modern status (CTS).