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Expansion boards enable computer control and monitoring applications

Fri, 03/14/2014 - 12:24pm

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Sealevel Systems, Inc. (Liberty, SC) announced the SeaRAQ family of I/O expansion boards designed for Relio R3 rackmount industrial computers. The boards interface to a variety of real-world I/O, and all boards are isolated to prevent damage from harmful surges and ground loops often found in industrial environments. With available slots for adding up to 18 SeaRAQ boards, the Relio R3 is appropriate for I/O intensive applications including process control, test and measurement, and data acquisition applications. The first two SeaRAQ boards provide Form A relays rated for either 5-250 VAC or 5-30 VDC loads up to 2A per relay. The 8520 offers 16 relay outputs organized as four relay banks with each bank sharing a common, while the 8521 provides eight relay outputs with discrete commons.
Additional features include:

  • Field wiring to the boards using 20-position, removable, high-retention Phoenix terminal blocks compatible with 16-30 AWG wire.
  • Power from the Relio's backplane connection and provide 1500 VAC field-to-logic isolation.
  • SeaMAX software which supports Microsoft Windows and Linux operating systems.

For more information, visit www.sealevel.com

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