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Tunnel Master® Jr. User Manual
Chapter 2: Hardware Installation
Tire Switch Wiring
IMPORTANT: This circuit is used if the customer has purchased a tire position switch from
the equipment vendor. The switch enables the Controller software to turn equipment on
and off as each of the vehicle’s tires pass that piece of equipment. In order for this to work
properly, the tire switch should be located in line with the gate switch.
The following diagram shows how to wire the Tire Switch (tire position detection) into the Relay Box.
24 VAC SUPPLY
(BY OTHERS)
TMJ RELAY BOX TERMINAL STRIP (TOP)
COMMON
NORMALLY
OPEN
ELECTRIC TIRE
POSITION SENSING
DEVICE CONTACTS
TIRE POSITION DETECTION CIRCUIT
L
N
TIRE -
TIRE +
Alternate symbol for N.O. Switch
Figure 2-8. Tire Switch Wiring
Summary of Contents for Tunnel Master Jr
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