Switch Machine Interface

This device provides a reversible card-edge connector to attach it to a Tortoise switch machine and has separate connectors for its motor and the two sets of SPDT contacts. The reversible feature means that it can be connected either way to a switch machine and the wiring connections remain the same.

A 2-position screw terminal block provides connections for the motor power, and a 3-position terminal block provides connections for the traction power for an electrified frog, with the centre terminal being the common terminal.

Either a 3-position terminal block or a 3-pin header is available for the second SPDT contacts, with the header option provided for easier connection to a digital system, including our future signalling product, Signal Master Plus.

Switch Machine Interface Kit - Header Status

Price: $7.09

Switch Machine Interface
With header for status contacts - Version 1.00 Board & Parts Kit



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3 available for immediate shipment.

Switch Machine Interface Assembled - Header Status

Price: $10.09

Switch Machine Interface
With header for status contacts - Version 1.00 Assembled and Tested Unit



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7 available for immediate shipment.

Switch Machine Interface Kit - Terminal Block Status

Price: $8.09

Switch Machine Interface
With terminal block for status contacts - Version 1.00 Board & Parts Kit



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4 available for immediate shipment.

Switch Machine Interface Assembled - Terminal Block Status

Price: $11.09

Switch Machine Interface
With terminal block for status contacts - Version 1.00 Assembled and Tested Unit



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7 available for immediate shipment.

Switch Machine Interface Circuit Board

Price: $4.19

Switch Machine Interface
Version 1.00 Circuit Board



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103 available for immediate shipment.

Delivery options:

  • Canada: $14.00 (tracked)
  • USA: $35.00 (tracked)
  • Australia: $40.00 (tracked)
  • UK: $30.00 (tracked)
  • EU: $26.00 (tracked)
  • Thailand: $40.00 (tracked)
  • UAE: $40.00 (tracked)
  • Other locations: $40.00 (tracked where available)

Payment methods available:

  • PayPal
  • Cash payment on pickup
  • Interac e-Transfer Interac e-Transfer (Canadian orders only)