The CTC-Locomotive Module PluX22 is intended for locomotives with the Standard Socket PluX22. Due to the standardized plug, this locomotive module can be installed without soldering work. For older locomotives, there are various adapter boards on the market with larger solder pads, cables, or even for NEM-652 (8-pin), NEM-651 (6-pin).
| Property | Description |
|---|---|
| Optimized for | Locomotives with PluX22, via adapter also NEM-651, NEM-652, or for soldering |
| Dimensions | 30 x 16 mm |
| Processor | Espressif ESP32 |
| Input voltage | approx. 9 V to 24 V DC or digital current or AC (with buffer capacitor) |
| Motor output | 1x DC motor: continuous current 1.0 A, peak 3.5 A |
| Switching outputs | 8x 500 mA LowSide (F0L, F0R, AUX1 to AUX6) AUX7 is not connected |
| Max total current | 2 A |
| Interfaces | CTC-IR receiver, bus (e.g., as I2C), 2x servo, 1x input |
| Current online passive | TBD |
| Boot current | 50 mA at 15 V |
In the overview “CTC Locomotive Modules” you will find more modules and links to installation instructions.
Pin Assignment
Details on pin assignment and dimensions can be found in the RailCommunity Standard RCN-122.
Connection
Notes:
- When choosing the input voltage, be sure to remember that the motors, lights, … connected to the CTC module must also be able to handle this voltage!
- The AUX-7 connection is not assigned.
- The bus is not supported by the current firmware.
To connect
- plug the CTC module onto the 22-pin PluX22 socket of the locomotive.
- plug the optional CTC IR receiver onto the 10-pin socket on the CTC module (red marking points to the center of the board).
The assignment of the light and AUX connections to switches in the app can be freely configured (Cfg.xml).
Additional Connections
- An NFC reader can be connected to NFC-TX, NFC-RX, VCC, and GND, e.g., for small Gauge-G locomotives.
- There are two digital inputs available under ExtIn-1 and ExtIn-2.
IR Receiver
We provide you with a cable with a suitable 10-pin plug for the IR receiver. Installed in a Piko locomotive BR 147 (#51583-2) it looks like this:
Note: Since the buffer capacitor was not wired in the Piko locomotive, we soldered it directly to our CTC Locomotive Module PluX22.