CKT-TIMELOCK: Time Lock Switch Controller

CKT-TIMELOCK: Time Lock Switch Controller
CKT-TIMELOCK: Time Lock Switch Controller
Brand: Iowa Scaled Engineering
Product Code: CKT-TIMELOCK
Availability: 10 pcs  (What's this?)
Price: $35.00

12 or more $30.00
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The Iowa Scaled Engineering CKT-TIMELOCK provides an easy way to add prototypical time-locked switches or dual-control power switches to your model railroad.

Features

  • Simulates time lock switches and dual-control power switches
  • Adjustable time delay, from 5 - 240 seconds
  • Built-in 2kΩ shunt resistor and relay for triggering current-based block occupancy detectors
  • Directly drives MRServo switch machines or popular stall-motor type machines
  • Requires only a single input for turnout direction

Prototype railroads use time locks on uncontrolled switches in signaled territory – often into industrial sidings - to prevent a crew from opening a switch in front of an oncoming train that is expecting clear track based on the last signal they saw.  The time delay between a crew requesting to operate the switch and actually being able to move the points is enough that any train already past the nearest block signals would have also passed the switch.

Even the best of machinery fails, and when that machinery is a switch at a busy control point, there is not always time to wait for the maintainer to get there.  That's why most prototype power switch machines on North American railways are “dual-control,” meaning they can be operated remotely under power or operated locally with a hand-throw lever.

While common on the prototype, these unique elements of switching industries are seldom modeled.  Now, with the CKT-TIMELOCK, it is easy to add additional realism for your switch crews on your layout.

User Guide

User's Manual

Design Files

The latest CKT-TIMELOCK hardware design files and source code are now available at GitHub!

CKT-TIMELOCK is made available under license from Nathan Holmes and Michael Petersen. The design is released under the Creative Commons BY-SA license, and the source code is released under the GPL v3.

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The CKT-TIMELOCK is a component intended to be used in a larger system. Suitability for any particular application is the sole responsibility of the end user. The CKT-TIMELOCK is made available under license from Michael Petersen and Nathan Holmes. The design is released under the Creative Commons BY-SA license, and the source code is released under the GPL v3.
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