Part#: 3189

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Ultra-SIO-ISO

Part#: 3189 Category:

ISA 2-Port RS-422, RS-485 Isolated Serial Interface

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Description

THIS PRODUCT IS OBSOLETE DUE TO LACK OF COMPONENT AVAILABILITY. PLEASE CONTACT YOUR SALES REPRESENTATIVE FOR FURTHER INFORMATION AND NEW PRODUCT ALTERNATIVES.

Sealevel will support legacy products through technical and warranty support, software drivers and product manuals. Please contact Sales for further information.

The 3189 ISA isolated serial interface provides the PC with two Isolated RS-422, RS-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 3189 eliminates the risk of Ground Loop Current, a commonly neglected and misunderstood phenomenon which leads to data errors and the destruction of communications equipment.

Additional information

Communications Chip

16550

Electrical Interface

RS-422, RS-485

Humidity Range

10 – 90% Relative Humidity, Non-Condensing

Host Interface(s)

ISA

Max Data Distance

4000 feet

Max Data Rate

115.2K bps

Optically Isolated

Yes

Operating Temperature

0°C to 70°C (32°F to 158°F)

# of Ports

2

RS-485 Operation

Full Duplex (4 wire), Half Duplex (2 wire)

Serial Connector(s)

DB9M

Storage Temperature

-50 – +105C

UART Series

550 UART

  • • True port to port isolation
  • • Automatic control of RS-485 driver enable
  • • Selectable COM: port address
  • • Selectable and sharable IRQ (2-7,10-12,14 and 15)
  • • Compatible with existing communication drivers
  • • 16-bit addressing eliminates I/O conflicts

Windows Software

Software: SeaCOM - Windows

Linux Software

Software: SeaCOM - Linux

Manual

Manual: 3189

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