Inc LocoNet Cable Maker Kit - Manual

Very large layouts will benet from using a LocoNet

Repeater (LNRP)

If more than 40 devices are on a single leg of LocoNet, or you get fre-

quent interruptions as you plug in devices, this may indicate the need for

an LNRP.

1. LocoNet Repeaters can be used to isolate areas of the layout from

each other

2. Allows for troubleshooting with LocoNet fault indications

3. Proper operation of LNRP REQUIRES at least a 14VDC power sup-

ply.

How to Check RailSync for Low Voltage

1. Use the short LocoNet cable prepared for checking LocoNet voltage

above.

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

station’s LocoNet Ports.

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

that you are measuring RailSync voltage at the Command Station

without any of the layout attached.

4. Measure the Unloaded RailSync voltage at the Command Station

without the layout plugged in. Measure both RailSync voltages sep-

arately and add them to remove and analog zero stretching changes

and to be sure both wires are carrying RailSync:

a. Use a DVM to measure from the white wire pin1 to black

or the yellow ground (pin 2 or 5).

b. Use a DVM to measure from the blue wire pin 6 to the black or

yellow ground (pin 2 or 5).

c. Add these two DC voltages, the total should be a voltage of

+12V to +14V DC, with the command station unplugged from

the layout. This is the unloaded RailSync measurement.

5. Measure the Loaded RailSync Voltage at the Command Station with

the layout plugged back in to the Command Station

a. Plug the LocoNet Cable from the layout in to the Command

Station.

b. Again, use a DVM to measure from the white wire pin1 to the

black or yellow ground (pin 2 or 5) on the short LocoNet Cable

plugged in to the Command Station.

c. Use a DVM to measure from the blue wire pin 6 to the black or

yellow ground (pin 2 or 5).

d. Add these two DC voltages, the total should be a voltage of +7

volts DC, with the command station plugged into the layout.

This is the loaded RailSync measurement