Isolated 422/485 Communication Card
AR-B9012 Features
2 serial 16C550 ports (16C550 w/16 byte FIFO for option) Interface type: RS-422A or RS-485 Baud Rate: up to 115.2K bps Can be set from COM1 to COM8 Port Signals: TXD, RXD, CTS and RTS Isolation Voltage: 500VDC Maximum transfer distance: 4000 feet Terminator: 120 ohms (Enable/Disable selection switch) Power requirement: 5V/250mA Two or four wire operation Dimensions: 175mm x 107mm
Specifications
General
Interface Type Number of Ports Per Card Maximum Transfer Distance Baud Rate Parity Data Bits Stop Bits Port Signal Connector UART Output Driver Input Driver Input Resistance Termination Resistor Signal Isolator Power Isolator Bus Type RS-422A or RS-485 2 4000ft 50 to 115.2K None, even, odd, mask or space 5, 6, 7 or 8 bits 1, 1.5 or 2 bits TXD, RXD, CTS and RTS D-type, 9pin, female 16C550 SN75175 or SN75173 SN75174 or SN75172 RS-422A 4K ohm; RS-485 12K ohm 120 ohm PC900 for TXD and RXD, 4N35 for CTS and RTS, 5000Vrms isolation DC to DC converter, 500 VDC isolation 8 bit ISA bus (If only first 4 IRQ used) 16 bits ISA bus (If 8 IRQ used) Interrupt Channel Power Requirement Physical and Environmental IRQ 2(9), 3, 4, 5, 10, 11, 12 and 15 5VDC/250mA Operating Temp. : 0 to 60 Celsius degree Storage Temp. : -25 to 85 Celsius degree Humidity: 0% to 95%, non-condensing Dimensions 175mm x 107mm
Ordering information:
Model No. AR-B9012 Description Isolated 422/485 Communication Card Accessories Disk: DOS Driver, Win31 Driver
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