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Installation Notes - OnGuard!
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PDF file - 218 kB)
Quick Start
Tools Required
Flat Tip Screwdriver with 1/8.Blade, Wire Strippers.
Connections
All connections involve two inputs from the DCC booster, or the
main line track bus and two outputs to the insulated track section
or reverse block.
If your DCC output or mainline track bus is 16 ga or greater (smaller
wire) then connect directly to the screw terminals on OnGuard.
If your DCC output or mainline track bus is 10-14 ga wire then solder-splice
a short length of 16 AWG to your heavier bus wire and connect the16
ga wires to screw terminals.
Polarity for Input/Output
OG-AR: Any input/output polarity is acceptable
for OG-AR
OG-CB: Input/output polarity must be the same for all OG-CB installations
Helpful Hints
When Isolated and Reverse Sections exceed 10 Ft.
in length install at least 2 sets of track feeders for that section.
Lack of feeders causes a voltage loss.
For reverse sections, we recommended that the gaps
be staggered about 1/8". Perfectly aligned gaps may reduce
performance.
If your Power Sections and Reverse blocks are greater
than 10 Ft. long be sure to have at least 2 sets of track feeders
for that section. Insufficient feeders will cause a voltage drop.
One end of the reverse section will be aligned
with normal polarity track power while the opposite or other end
will have a polarity mismatch and require the reverser to act.
Note: Not for direct current (DC) applications.
OnGuard Specifications
• 4 Amps
• Easy to Install Screw Terminals
• No Relays
• 1 Year Warranty
• Low Cost
• No Power Supply Required
Compatibility with most DCC Systems. Lower power systems such as the Digitrax Zephyr and the Atlas Commander lack the power to operate OnGuard.
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