©2010 Digitrax, Inc.
www.digitrax.com
3
Signal Head Examples:
3 over 3 dual "G" type signal heads
such as the Tomar H-866, can be con-
nected to a Plug ‘N Play Signal Mast Base (with the signal mast removed). The
white common anode lead (for both heads) connects to Common Lo (Pin 1)
pad and the signal’s longer wires from the red/green/yellow LEDs from the
Lower (dwarf) signal head connect to Red Lo (Pin 7), Green Lo (Pin 3) and
Yellow Lo (Pin 5) pads on the front of the Signal Mast Base. The shorter 3
wires from the upper head connect to the pads on the back Red Hi (Pin 4),
Yellow Hi (Pin 6) and Green Hi (Pin 8).
Single signal heads
such as Tomar H-856 (type "G"-3 LED vertical) or H-855
(3 LED target) connect the white common to Common Lo (1) and connect the
3 color leads to the Lo (1, 5, 7) pads for the dwarf signal or the Hi (4, 6, 8)
pads for the mainline signal. The combinations are shown in the schematic.
2-LED signals
, such as Tomar N-857 with only red and green LEDs, omit the
yellow pad connection and use the red and green pads for LED control.
2443 Transmitter Rd
T
850-872-9890
Panama City, FL USA 32404
F
850-872-9557
www.digitrax.com
Holesfor
retaining
wiresfor
mounting
signal
mast
Plug ‘N Play Signal Mast Base
(pad number and pin out)
Solder
padfor
mounting
brass
mast
Red Hi (Pin 4)
Yellow Hi (Pin 6)
Green Hi (Pin 8)
Aux Hi (Pin 2)
Common Lo
(Pin 1)
Aux Lo (Pin 9)
Yellow Lo (Pin 5)
Common Hi
(Pin 10)
Red Lo (Pin 7)
Green Lo (Pin 3)
Currentsetting
resistors
(100ohmmin)
Pin1
lowerleft
pin
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FRONT