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Dual Port Isolated/Non Isolated ISA RS422/485 Adapter



Dual Port Isolated/Non Isolated ISA RS422/485 Adapter OMG-ULTRA-SIO OMG-ULTRA-SIO
  • True Isolation BetweenPorts Providing500 Vdc Isolation(OMG-ULTRA-SIO-I)
  • Automatic Control ofRS485 Driver Enable (NoSpecial Software Required)
  • Selectable COM:Port Address
  • Selectable and SharableIRQ (2-7, 10-12, 14 and 15)
  • Compatible with ExistingCommunication Drivers
  • 16-Bit AddressingEliminates I/O Conflicts
  • 16550 Buffered UARTStandard/Full Array ofAdvanced UARTSAvailable
  • Selectable Termination,Echo Mode, Two/FourWire Operation
  • DB-9P ConnectorsProviding TD, RD, RTSand CTS
  • Includes Windows Advanced COMDrivers and Help Files toSimplify Installation

The OMG-ULTRA-SIO provides the PC with two isolated RS422/485 Asynchronous links to data collection and other devices. Isolation is important in installations where the equipment connected to the PC is either located far from the host system, or on a different power transformer circuit. The optical isolation feature of the OMG-ULTRA-SIO-I eliminates the risk of ground loop current, a commonly neglected and misunderstood phenomenon which leads to data errors and destruction of communications equipment. Individually selectable addresses and extended “AT” interrupts allow for seamless integration into Windows and OS/2 systems. The OMG-ULTRA-SIO appears to the host system as a standard COM: port requiring no special drivers or additional software.

WIN XP/Vista/7 drivers are included as well as support for Linux. The drivers provide IRQ sharing, advanced UART support and serial diagnostic utilities.

Communications Chip: 16550 UART
Number of Ports: Dual RS422/485
Isolation: True 500 Vdc isolation (OMG-ULTRA-SIO-I only)
Max Data Rate: 115 kBPS
Max Data Distance: Up to 1524 m (5000')
RS485 Operation: Two or four wire
Operating Temperature: -18 to 50°C (0 to 122°F)
Storage Temperature: -20 to 70°C (-4 to 158°F)
Humidity Range: 10 to 90% RH
Current Specifications: OMG-ULTRA-SIO; +5V @ 440 mA; OMG-ULTRA-SIO-I; ±5V @ 600 mA
Connector(s): (2) DB–9P
Physical Dimensions: 18.67 L x 10.67 H cm (7.35 x 4.2")
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