Train Tech TTSS5L

Sensor Signal (LH Feather) 4 Aspect Outer Distant

Manufacturer catalogue image - please note that pre-release images may be CAD renders or CGI images rather than photographs

Manufacturer description

With the use of the Sensor Signal developed by Train Tech you can easily add automatic signalling into your layout in seconds. The signals work by detecting a locomotive, or full train passing by it using a very small infrared sensor built in to the signal base. As soon as the locomotive has passed the sensor the signal changes to red and will stay red for about seven seconds to let the train clear the block. It then reverts back to yellow for a further seven seconds; then double yellow before then reverting back to green.

If more than one signal is being used in a section, such as a distant and home combination, the two signals can be linked by a single wire. This enables a signal sequence to be activated when the train passes the first signal. As the locomotive passes the first sensor the signal changes to red (as before) but as the train passes the second sensor the previous signal reverts to yellow and the additional signal changes to red which gives fully automatic block signalling, just like the real railway.

If you have multiple aspect signals (3 and 4) the yellows are also incorporated into this sequence. These signals are easy to set up and only require a single wire to link them all together to the sequence.

These signals can be used on both DC and DCC layouts using two methods of installation.

On DCC layouts you just need to connect the base prongs to the underside of the rails (like a power clip) this then enables them to be given a DCC address or run them automatically. To install these signals onto an existing layout you can cut the prongs off at the dotted lines and solder two wires onto the back of the PCB and run the wires to the power Bus Wires.

On DC layouts you need to cut the prongs at the dotted lines and solder two wires onto the base and connect them to a smooth 12V DC power supply. If you do not already have a suitable smooth DC supply then we recommend the GMC-WM4 12V DC Wall Mounted Transformer, which gives great value for money and 1.25 amps of power, enough to power about 20 signals per supply.

The Feather on this signal can be controlled separately by programming it to a different address or by connecting it to a point motor with auxiliary terminals of DC use.

On both DC or DCC these sensor signals can be linked to the Mimic Switches for a manual override to yellow, control of a route indication and LEDs indicating signal colour and track occupation.

MEASUREMENTS

• HEIGHT 79mm

Catalogue listing

Train Tech Sensor Signal (LH Feather) 4‑Aspect Outer Distant (Part TTSS5L) is a model railway signalling module that uses an integrated infrared sensor to detect a passing locomotive or train. When the sensor is triggered the signal turns red and remains so for approximately seven seconds, then changes to yellow for another seven seconds, followed by double yellow before returning to green.

The system can be linked with additional signals in the same block using a single connecting wire, allowing a sequential automatic block signalling operation similar to that on the real railway. Multi‑aspect (3‑ or 4‑aspect) signals incorporate the yellow aspects into the same sequence, and the Feather aspect can be set to a separate address or driven by a point motor.

The signals are compatible with both DC and DCC layouts. On DCC the base prongs can be clamped to the rail undersides for addressable operation, or the prongs can be removed and wires soldered to the PCB for power‑bus connection. On DC the prongs are cut and two wires are soldered to a smooth 12 V supply; a suitable transformer such as the GMC‑WM4 (12 V, 1.25 A) can power around twenty signals. The device can also be interfaced with Mimic Switches for manual override, route indication and occupancy LEDs.

MEASUREMENT: Height 79 mm.