RS422/RS485 communication card 104-COM-8SM-T

serialPC 1042-channel

-8, 4, or 2 independent asynchronous serial COM ports -Field selectable RS-232, RS-422 and RS-485, independent for each port -Auto-RTS feature makes half-duplex RS-485 communications effortless -Speeds up to 921.6K with 64-byte FIFO (RS-232 is 230K max) -Fixed bias and jumper selectable termination provided on each transmit and receive channel simplifies cabling -Programmable individual non-volatile base addresses and IRQs simplifies installation -Low power required: +5VDC at 80 mA typical -Operates as a standard COM port in all operating systems -Extended operating temperature (-40°C to +85°C) on the 4 and 8 port versions Factory Options -RoHS compliant version -Extended operating temperature (-40°C to +85°C) on 2-port version This is an eight-, four-, or two-port, asynchronous, serial communication board designed for use on the PC/104 bus. It supports RS-232, RS-422 or RS-485 communications. The board may be installed in any standard PC/104 stack. Connections are made via two 40 pin IDC type right angle connectors. Common applications include POS, gaming systems, machine monitoring, military and high-density networking.Type 16780 UARTS are used as the asynchronous communication elements. These include 64-byte transmit/receive FIFO buffers to protect against lost data in multitasking systems while maintaining 100% compatibility with the original IBM serial port (software compatible with Windows COM port drivers). A crystal oscillator located on the board permits precise baud rate capability up to 115,200. Higher speeds, up to 921.6K, are achieved by installing a jumper on the board.