The IR receivers are infrared receivers for a wavelength of 950 nm and a modulation frequency of 38 kHz.

The image shows the Vishay TSOP98438 on the left, designed for H0 scale, and the Vishay TSOP77338 on the right, designed for N and TT scale:

The Vishay TSOP39338 , which is about half as thick, proved unsuitable during evaluation as it cannot be installed flat.

Now buy: 6-pin plug Mini 6-pin plug 10-pin plug

The pins in both photos are numbered from left to right and assigned as follows:

• For the larger TSOP98438 (5 mm x 7 mm x 4.5 mm): 1-Out (data, violet), 2-GND (black), 3-Vs (3.3V, red)
• For the smaller TSOP77338 (3 mm x 6.5 mm x 3 mm): 1-GND (black), 2-Vs (3.3V, red), 3-Out (data, violet), 4-GND (black). It is sufficient to connect only one of the two GND pins.

We always supply cables with plugs matching the loco module.

The photo shows a CTC-Loco-Module PluX22 (with 21mtc it looks exactly the same) with the old 10-pin plug:

This is how the 6-pin plug used on the CTC-Loco-Module-M3 is connected to the IR receiver:

This is how the 6-pin plug used on the CTC-Loco-Module-S3 is connected to the mini IR receiver: