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. For older locomotives, there are various adapter boards on the market with larger solder pads, cables, or also for NEM-652 (8-pole), NEM-651 (6-pole).

Property Description
Optimized for Locomotives with PluX22, by adapter also NEM-651, NEM-652 or for soldering on
Dimensions 30 x 16 mm
Processor Espressif ESP32
Input voltage approx. 9 V to 24 V DC or digital power 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
Current sum max. 2 A
Interfaces CTC-IR-receiver, train bus (e.g. as I2C), 2x Servo, 1x Input
Current online passive TBD
Current booting 50 mA at 15 V

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In the overview “CTC-Locomotive Modules” you can find further modules and links to installation instructions.

Pin Assignment

Details about pin assignment and dimensions can be found in the RailCommunity Standard RCN-122.

Locomotive Module PluX22

Connection

Notes:

  • When choosing the input voltage, please remember that motors, lamps, … connected to the CTC module must also withstand this voltage!
  • The AUX-7 connection is not in use.
  • The train bus is not supported by the current firmware.

To connect:

  • Plug the CTC module into the 22-pin PluX22 socket of the locomotive.
  • Connect the optional CTC IR receiver to the 10-pin socket on the CTC module (red marking points towards the centre 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-TX, NFC-RX, VCC, and GND can have an NFC reader connected, e.g., for small gauge G locomotives.
  • ExtIn-1 and ExtIn-2 provide two digital inputs.

    IR Receiver

For the IR receiver, we provide you with a cable with a suitable 10-pin plug. Installed in a Piko locomotive BR 147 (#51583-2), it looks like this:

Locomotive module PluX22 in locomotive

Note: Since the support capacitor in the Piko locomotive was not wired, we have soldered it directly to our CTC-locomotive module-PluX22.