Pins 12 and 13 are the Lamp output signals.
Pins 11 and 14 are common. (Ground)
These terminals provide power to directly drive
incandescent lamps. These can provide up to 3 AMPS
of power. The output voltage is pure DC and is not
half wave rectified AC. LED lamps can be used if the
proper dropping resistor is used. Polarity is important when
using LED’s.
Note that the lamp output voltage is directly proportional
to the input voltage. For example, a 12 VAC or 12 VDC
input will provide a 12VDC lamp output, etc. If switch control
is not required (requires higher voltages) then the input
voltage can be lowered as necessary to drive the signal lamps.
The YardMaster will flash these lamps at 1 Hz when
performing a time delay operation. For standard non time
delay operations these lamps will enter a slow blinking state
every few seconds to give your RR a more realistic look.
DO NOT short these wires together or attach them to
the track. Damage will result.
Y
M
ard
aster
Turnout Controller - Lamp Driver - Power Switcher
RR-Concepts.com
1
2
3
4
5
6
20
19
18
17
16
15
7
11
8
12
9
13
10
14
Lamp Outputs
Common
Common
Lamp1
Lamp 2
RR-Concepts.com
