ISA总线串口通信卡 Serial Communication Legacy Products on ISA
COM422-4、COM485-4 产品技术规格
PC Interface

● ISA Bus

Communications Interface(One serial port shown here)

● RS-485 Drive: A total of 32 transmitters and receivers allowed on one line.

● Receiver Input Sensitivity: ±200 mV, differential input.

● Input Common Mode Voltage: -7V to +12V.

● Transmitter Output Drive Capability: 60 mA (100 mA short-circuit current capability). RS-485 model can drive 32-node, multidrop, two-wire twisted pair cable up to 4000 feet long.

● Serial Data Rates: 300 to 115,200 baud, asynchronous.

● I/O Bus Address (each port): DIP switch selectable within 100 to 3F8 (hex) range of AT bus addresses.

● Interrupts (each port): Jumper selectable, IRQ2-7, 10-12, 14, 15.

Environmental

● Operating Temperature Range: 0° to 60°C.

● Storage Temperature Range: -40° to +100°C.

● Humidity: 0 to 90% RH, non-condensing.

● Although designed for any AT slot, if installed in an XT-style slot then IRQ10-15 will be unavailable to the card.

Power Required

● +5 VDC at 250 mA typical, 500 mA maximum.

Regulatory Compliance

● This product is designed to be in full compliance with CE requirements.

 
 

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