The CTC Locomotive Module PluX22 is being phased out. Its successor is the CTC Locomotive Module M3.
The CTC Locomotive Module PluX22 is designed for locomotives with the standard PluX22 socket. Thanks to the standardized connector, this locomotive module can be installed without soldering. For older locomotives, various adapter boards with larger solder pads, cables, or even for NEM-652 (8-pin) and NEM-651 (6-pin) are available on the market.
| Feature | 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, digital current, or AC (with support 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, train bus (e.g., as I2C), 2x servo, 1x input |
| Passive online current | TBD |
| Boot current | 50 mA at 15 V |
In the overview “CTC Locomotive Modules”, you will find additional 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 selecting the input voltage, always ensure that motors, lamps, etc., connected to the CTC module can also handle this voltage!
- The AUX-7 connection is not assigned.
- The train bus can be used as a SUSI interface.
For connection:
- 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 faces toward the center of the board).
The assignment of light and AUX connections to switches in the app can be freely configured (Cfg.xml).
Additional Connections
- An NFC-TX, NFC-RX, VCC, and GND, an NFC reader can be connected, e.g., for small G scale locomotives.
- Two digital inputs are available under ExtIn-1 and ExtIn-2.
IR Receiver
For the IR receiver, we provide a cable with a matching 10-pin plug. Installed in a Piko locomotive BR 147 (#51583-2), it looks like this:
Note: Since the support capacitor in the Piko locomotive was not wired, we soldered it directly to our CTC locomotive module PluX22.