How the s88-N Feedback Module, 16-way works
The feedback module collects the signals from up to 16 sensors – for example from current sensors for occupancy detection or from turnout end-position sensors – and passes them via the s88-N bus to your command station or an s88-N starting point. The modules are chained in series with RJ45 cables: the ‘Richtung Zentrale’ (towards the command station) socket points to the command station, and you connect the next feedback module to ‘Weitere Module’ (further modules).
5 V is available at the VCC terminals for sensors such as the Turnout End-Position Sensor. An LED shows whether the module is powered correctly. The Raildata signal of the s88-N bus is not used but is passed through, so that other modules in the chain can use it.
What else you need
- an s88-N Cable per connection
- sensors, for example two Current Sensor 8×3A or the Turnout End-Position Sensor
- if your command station has a classic s88 connector: the s88/s88-N Adapter
Note: Please select the s88-N voltage (5 V or 12 V) to match your command station or starting point. All modules in a chain must have the same voltage.
Frequently asked questions
Do I need the 5 V or the 12 V variant?
That depends on your command station or s88-N starting point: depending on the device, the s88-N bus runs on 5 V or 12 V. All modules in a chain must be designed for the same voltage. The variant is marked on the back of the board.
How many feedback modules can I connect in a row?
The modules are chained in series with RJ45 cables and addressed consecutively. How many modules are possible depends on your command station or the s88-N starting point.
Is the feedback module also available with built-in current sensors?
Yes – the s88-N Occupancy Detector, 16-way combines 16 current sensors and the s88-N feedback module in a single module.

















