Inc LocoNet Cable Maker Kit - Manual

2. If the RailSync lines are OK. The two RailSync lines are driven as

anti-phase copies of the track digital signal, and are driven with al 22

ohm output impedance so as they are loaded the voltages will drop,

indicating the current load. These two lines should not be connected

together, and this will cause excess current draw and low voltages.

How to Check for Low LocoNet Voltage

1. Prepare a short LocoNet cable with one end stripped to expose the

wires inside the jacket.

2. Strip the Red and Green wires and twist them together.

3. Strip the Black and Yellow wires and twist them together.

4. Plug this short LocoNet cable directly into one of your command

station’s LocoNet Ports.

5. Disconnect LocoNet from the layout at your Command Station so

that you are measuring LocoNet voltage at the Command Station

without the layout attached.

6. Use a good quality multimeter (in the 20 volt DC range) to measure

the DC voltage between the red/green and black/yellow pairs.

a. Connect the red/green wires to the +ve lead of the DVM and

the –ve DVM lead black/yellow wires and measure the voltage.

7. The voltage on the LocoNet data wires should be at least +8V DC.

The highest voltage depends on the command station but is usually

+12V to +14V