Signals with Double-Coil Drive

The double-coil drive is the standard drive for semaphore signals in H0 scale , sometimes affectionately called "click-clack". It consists of two electromagnets, one for each switching direction. It is connected with three wires: one common power supply and one switching line per electromagnet.

Note: Some double-coil drives do not switch off or switch unreliably when the end position is reached. If these are operated with continuous current, the electromagnet burns out or sticks to plastic guides within seconds. Such damage is usually irreparable.

Light Signals

Light signals consist of LEDs (formerly lamps). One pole of the LEDs is usually connected to a common positive pole. The other pole is then switched against minus (GND).

The common positive pole is connected to VBB of the CTC-Turnout-Module or CTC-Multi-I/O-Board . The negative poles of the individual LEDs are connected to a switching output:

• LowSide on the CTC-Multi-I/O-Board (SW-1 to SW-8),
• LowSide on the CTC-Turnout-Module (W1-Red, W1-Green, W2-Red or W2-Green),
• HalfBridge on the CTC-Turnout-Module-G (HB-1 to HB-4)

When configuring, one of the signal catalogs (universell-signale.xml, viessmann-signale.xml) is selected. When selecting the product, ensure whether it is a LowSide or HalfBridge connection.

Light Signals on the LED Bus

Light signals can also be connected to the LED Bus. If all LEDs can display all colors, the signal can be connected directly to an LED distributor on the bus. If the LEDs can only display one color, they must be connected to an LED-CLASSIC , which is then inserted into the bus.

Multiplex Signals

To reduce the number of connecting wires, there are also so-called multiplex signals. There is currently no support for these in CTC.

Please contact us if you wish to connect such signals.