It's back!  Due to popular demand, we reactivated the Interlocking-In-A-Box for a limited time.  Click here to learn more and to place your order.

The Iowa Scaled Engineering Interlocking-In-A-Box (IIAB) provides the signal logic to control a fully automatic interlocking on a model railroad. It can be used to manage a crossing of two active main lines with signals on both, or more typically, it can be used to manage the crossing of an active (modeled) main line and an inactive (dummy) main line. Each main line can have one siding, on either side of the diamond, and the signals respond prototypically based on the position of the switch points.

Features

• Fully automatic interlocking with built-in signal logic (signals not included)
• Ability to simulate trains schedules using an Iowa Scaled Engineering fast clock
• Configurable time lock and timeout delays to suit any application
• Supports one siding on each main line with corresponding signal indications
• Interfaces with infrared or current-based block detectors
• Optional automatic interchange can be triggered by simulated trains
• Simple configuration with the MRGui utility

Includes

• IIAB Module
• One IR Sensor for the diamond
• 12V, 1A Power Supply
• 8 x 10kΩ Input Pull-Up Resistors (Color Code = brown black orange)
• 16 x 330Ω LED Current-Limiting Resistors (Color Code = orange orange black)
• Programmer for use with the MRGui configuration utility (only one required/shipped per order - discount applied automatically)

https://www.iascaled.com/store/MRB-IIAB