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Digital Output Expansion Card

Supplier: Sphere Systems

The digital output expansion card provides 8-off digital outputs.

Price Guide: POA

Digital Output

The digital output expansion card provides 8-off digital outputs. These are switched using volt free relays with a single Form C contact with a normally closed contact.

Maximum switching current is 24 Volt AC or 5 Amp DC. Each relay can be locked in an On or Off state or can be set to be controlled by the processor.

A LED is used to indicate the state of the relay. This card is suitable for a 24 Volt AC, 5 Amp operations.


  • The card is designed to fit Augat 3TK Series Snap Track.
  • The Digital Input Expansion Card is 91 mm long by 82.5 mm wide and 20 mm high without connectors.

Power supply

  • Power for the relays is supplied by an additional 2 way Phoenix Contact connector.

External Connection

  • The field wiring is connected to the card via a Phoenix Contact 12 way, screw terminated, cable mounted plug.
  • Connection to the IO Expansion BUS is through a 20-way flat cable that also supplies power to the expansion board.


  • All electronics and power supplies can be mounted in plastic or metal sealed enclosures to meet environmental requirements.
  • No fans, heat sinks or other heat dissipation methods are required.
  • Field wiring connections can be provided through plugs, sockets or penetrations in the enclosure meeting expected environmental requirements.
  • Enclosures will be sized to accommodate the equipment to be housed.

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